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                                                                     EXHIBIT 4.3

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                                    INDENTURE

                                      among

                          SLM STUDENT LOAN TRUST 2002-7
                                 as the Issuer,

                 CHASE MANHATTAN BANK USA, NATIONAL ASSOCIATION,
                       not in its individual capacity but
                      solely as the Eligible Lender Trustee

                                       and

                              THE BANK OF NEW YORK,
                       not in its individual capacity but
                         solely as the Indenture Trustee

                          Dated as of November 1, 2002


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                                TABLE OF CONTENTS

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                                                                                                       PAGE
                                                                                                       ----
<S>              <C>                                                                                     <C>
                                                 ARTICLE I
                                           Definitions and Usage

SECTION 1.1      Definitions and Usage....................................................................3
SECTION 1.2      Incorporation by Reference of Trust Indenture Act........................................3

                                                 ARTICLE II
                                                  The Notes

SECTION 2.1      Form.....................................................................................4
SECTION 2.2      Execution, Authentication and Delivery...................................................4
SECTION 2.3      Temporary Notes..........................................................................5
SECTION 2.4      Registration; Registration of Transfer and Exchange......................................5
SECTION 2.5      Mutilated, Destroyed, Lost or Stolen Notes...............................................6
SECTION 2.6      Persons Deemed Owner.....................................................................7
SECTION 2.7      Payment of Principal and Interest; Note Interest Shortfall...............................7
SECTION 2.8      Cancellation.............................................................................8
SECTION 2.9      Release of Collateral....................................................................8
SECTION 2.10     Book-Entry Notes.........................................................................8
SECTION 2.11     Notices to Clearing Agency...............................................................9
SECTION 2.12     Definitive Notes.........................................................................9

                                                 ARTICLE III
                                                  Covenants

SECTION 3.1      Payment to Noteholders..................................................................10
SECTION 3.2      Maintenance of Office or Agency.........................................................10
SECTION 3.3      Money for Payments To Be Held in Trust..................................................10
SECTION 3.4      Existence...............................................................................12
SECTION 3.5      Protection of Indenture Trust Estate....................................................12
SECTION 3.6      Opinions as to Indenture Trust Estate...................................................12
SECTION 3.7      Performance of Obligations; Servicing of Trust Student Loans............................13
SECTION 3.8      Negative Covenants......................................................................15
SECTION 3.9      Annual Statement as to Compliance.......................................................16
SECTION 3.10     Issuer May Consolidate, etc., Only on Certain Terms.....................................16
SECTION 3.11     Successor or Transferee.................................................................18
SECTION 3.12     No Other Business.......................................................................18
SECTION 3.13     No Borrowing............................................................................18
SECTION 3.14     Obligations of Servicer and Administrator...............................................18
SECTION 3.15     Guarantees, Loans, Advances and Other Liabilities.......................................18
SECTION 3.16     Capital Expenditures....................................................................18
SECTION 3.17     Restricted Payments.....................................................................18
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<S>              <C>                                                                                     <C>
SECTION 3.18     Notice of Events of Default.............................................................19
SECTION 3.19     Further Instruments and Acts............................................................19

                                                 ARTICLE IV
                                         Satisfaction and Discharge

SECTION 4.1      Satisfaction and Discharge of Indenture.................................................19
SECTION 4.2      Application of Trust Money..............................................................20
SECTION 4.3      Repayment of Moneys Held by Paying Agent................................................20
SECTION 4.4      Auction of Trust Student Loans..........................................................20

                                                  ARTICLE V
                                                  Remedies

SECTION 5.1      Events of Default.......................................................................21
SECTION 5.2      Acceleration of Maturity; Rescission and Annulment......................................22
SECTION 5.3      Collection of Indebtedness and Suits for Enforcement by Indenture Trustee...............23
SECTION 5.4      Remedies; Priorities....................................................................25
SECTION 5.5      Optional Preservation of the Trust Student Loans........................................28
SECTION 5.6      Limitation of Suits.....................................................................28
SECTION 5.7      Unconditional Rights of Noteholders To Receive Principal and Interest...................29
SECTION 5.8      Restoration of Rights and Remedies......................................................29
SECTION 5.9      Rights and Remedies Cumulative..........................................................29
SECTION 5.10     Delay or Omission Not a Waiver..........................................................29
SECTION 5.11     Control by Noteholders..................................................................29
SECTION 5.12     Waiver of Past Defaults.................................................................30
SECTION 5.13     Undertaking for Costs...................................................................30
SECTION 5.14     Waiver of Stay or Extension Laws........................................................30
SECTION 5.15     Action on Notes.........................................................................31
SECTION 5.16     Performance and Enforcement of Certain Obligations......................................31

                                                 ARTICLE VI
                                            The Indenture Trustee

SECTION 6.1      Duties of Indenture Trustee.............................................................32
SECTION 6.2      Rights of Indenture Trustee.............................................................33
SECTION 6.3      Individual Rights of Indenture Trustee..................................................33
SECTION 6.4      Indenture Trustee's Disclaimer..........................................................33
SECTION 6.5      Notice of Defaults......................................................................34
SECTION 6.6      Reports by Indenture Trustee to Noteholders.............................................34
SECTION 6.7      Compensation and Indemnity..............................................................34
SECTION 6.8      Replacement of Indenture Trustee........................................................35
SECTION 6.9      Successor Indenture Trustee by Merger...................................................36
SECTION 6.10     Appointment of Co-Trustee or Separate Trustee...........................................36
SECTION 6.11     Eligibility; Disqualification...........................................................37
</Table>

                                       ii
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<S>              <C>                                                                                     <C>
SECTION 6.12     Preferential Collection of Claims Against Issuer........................................37

                                                 ARTICLE VII
                                       Noteholders' Lists and Reports

SECTION 7.1      Issuer To Furnish Indenture Trustee Names and Addresses of Noteholders..................38
SECTION 7.2      Preservation of Information; Communications to Noteholders..............................38
SECTION 7.3      Reports by Issuer.......................................................................38

                                                ARTICLE VIII
                                    Accounts, Disbursements and Releases

SECTION 8.1      Collection of Money.....................................................................39
SECTION 8.2      Trust Accounts..........................................................................39
SECTION 8.3      General Provisions Regarding Accounts...................................................40
SECTION 8.4      Release of Indenture Trust Estate.......................................................40
SECTION 8.5      Opinion of Counsel......................................................................41

                                                 ARTICLE IX
                                           Supplemental Indentures

SECTION 9.1      Supplemental Indentures Without Consent of Noteholders..................................41
SECTION 9.2      Supplemental Indentures with Consent of Noteholders.....................................42
SECTION 9.3      Execution of Supplemental Indentures....................................................44
SECTION 9.4      Effect of Supplemental Indenture........................................................44
SECTION 9.5      Conformity with Trust Indenture Act.....................................................44
SECTION 9.6      Reference in Notes to Supplemental Indentures...........................................44

                                                  ARTICLE X
                                             Redemption of Notes

SECTION 10.1     Redemption..............................................................................44
SECTION 10.2     Form of Redemption Notice...............................................................45
SECTION 10.3     Notes Payable on Redemption Date........................................................45

                                                 ARTICLE XI
                                                Miscellaneous

SECTION 11.1     Compliance Certificates and Opinions, etc...............................................45
SECTION 11.2     Form of Documents Delivered to Indenture Trustee........................................47
SECTION 11.3     Acts  of Noteholders....................................................................48
SECTION 11.4     Notices, etc., to Indenture Trustee, Issuer and Rating Agencies.........................48
SECTION 11.5     Notices to Noteholders; Waiver..........................................................49
SECTION 11.6     Alternate Payment and Notice Provisions.................................................49
SECTION 11.7     Conflict with Trust Indenture Act.......................................................50
SECTION 11.8     Effect of Headings and Table of Contents................................................50
SECTION 11.9     Successors and Assigns..................................................................50
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                                       iii
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<S>              <C>                                                                                     <C>
SECTION 11.10    Separability............................................................................50
SECTION 11.11    Benefits of Indenture...................................................................50
SECTION 11.12    Legal Holidays..........................................................................51
SECTION 11.13    Governing Law...........................................................................51
SECTION 11.14    Counterparts............................................................................51
SECTION 11.15    Recording of Indenture..................................................................51
SECTION 11.16    Trust Obligations.......................................................................51
SECTION 11.17    No Petition.............................................................................52
SECTION 11.18    Inspection..............................................................................52
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                       APPENDICES, SCHEDULES AND EXHIBITS

APPENDIX A-1     Definitions and Usage
APPENDIX A-2     Certain Terms and Provisions of the Auction Rate Notes

SCHEDULE A       Schedule of Trust Student Loans
SCHEDULE B       Location of Trust Student Loan Files

EXHIBIT A        Forms of Notes
EXHIBIT B        Form of Note Depository Agreement
EXHIBIT C        Notice of Payment Default
EXHIBIT D        Notice of Cure of Payment Default
EXHIBIT E        Notice of Proposed Change in Length of One or More Auction
                 Periods
EXHIBIT F        Notice Establishing Change in Length of One or More Auction
                 Periods
EXHIBIT G        Notice of Change in Auction Date

                                        v
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          INDENTURE dated as of November 1, 2002, among SLM STUDENT LOAN TRUST
2002-7, a Delaware statutory trust (the "Issuer"), CHASE MANHATTAN BANK USA,
NATIONAL ASSOCIATION, a national banking association, not in its individual
capacity but solely as trustee on behalf of the Issuer (the "Eligible Lender
Trustee"), and THE BANK OF NEW YORK, a New York banking corporation, as
indenture trustee and not in its individual capacity (the "Indenture Trustee").

          Each party agrees as follows for the benefit of the other party and
for the equal and ratable benefit of the holders of the Issuer's Student
Loan-Backed Notes (the "Notes"):

                                 GRANTING CLAUSE

          The Issuer and, with respect to the Trust Student Loans, the Eligible
Lender Trustee hereby Grant to the Indenture Trustee, as trustee for the benefit
of the Noteholders, effective as of the Closing Date all of their right, title
and interest in and to the following:

     (a)  the Trust Student Loans, and all obligations of the Obligors
thereunder including all moneys accrued and paid thereunder on or after the
Cutoff Date and all guaranties and other rights relating to the Trust Student
Loans;

     (b)  the Servicing Agreement, including the right of the Issuer to cause
the Servicer to purchase Trust Student Loans from the Issuer under circumstances
described therein;

     (c)  the Sale Agreement, including the right of the Issuer to cause the
Depositor to repurchase Trust Student Loans from the Issuer under circumstances
described therein and including the rights of the Depositor under the Purchase
Agreement;

     (d)  the Purchase Agreement, to the extent that the rights of the Depositor
thereunder have been assigned to the Issuer pursuant to the Sale Agreement,
including the right of the Depositor to cause Sallie Mae to repurchase Trust
Student Loans from the Depositor under circumstances described therein;

     (e)  the Administration Agreement and the Swap Agreement;

     (f)  each Guarantee Agreement, including the right of the Issuer to cause
the related Guarantor to make Guarantee Payments in respect of the Trust Student
Loans;

     (g)  the Trust Accounts and all funds on deposit from time to time in the
Trust Accounts, including the Reserve Account Initial Deposit and the
Capitalized Interest Account Initial Deposit, if any, and all investments and
proceeds thereof (including all income thereon); and

     (h)  all present and future claims, demands, causes and choices in action
in respect of any or all of the foregoing and all payments on or under and all
proceeds of every kind and nature whatsoever in respect of any or all of the
foregoing, including all proceeds of the conversion, voluntary or involuntary,
into cash or other liquid property, all cash proceeds, accounts, accounts
receivable, notes, drafts, acceptances, chattel paper, checks, general

                                        1
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intangibles, deposit accounts, insurance proceeds, condemnation awards, rights
to payment of any and every kind and other forms of obligations and receivables,
instruments and other property which at any time constitute all or part of or
are included in the proceeds of any of the foregoing (collectively, the
"Collateral").

          The foregoing Grant is made in trust to secure the payment of
principal of and interest on, and any other amounts owing in respect of, the
Notes, equally and ratably without prejudice, priority or distinction, and to
secure compliance with the provisions of this Indenture, all as provided in this
Indenture.

          The Indenture Trustee, as Indenture Trustee on behalf of the
Noteholders, acknowledges such Grant, accepts the trusts under this Indenture in
accordance with the provisions of this Indenture and agrees to perform its
duties required in this Indenture to the best of its ability to the end that the
interests of the Noteholders may be adequately and effectively protected.

                                        2
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                                    ARTICLE I

                              DEFINITIONS AND USAGE

          SECTION 1.1   DEFINITIONS AND USAGE. Except as otherwise specified
herein or as the context may otherwise require, capitalized terms used but not
otherwise defined herein are defined in Appendix A-1 or Appendix A-2 hereto,
which also contain rules as to usage that shall be applicable herein.

          SECTION 1.2   INCORPORATION BY REFERENCE OF TRUST INDENTURE ACT.
Whenever this Indenture refers to a provision of the TIA, the provision is
incorporated by reference in and made a part of this Indenture. The following
TIA terms used in this Indenture have the following meanings:

          "Commission" means the Securities and Exchange Commission.

          "indenture securities" means the Notes.

          "indenture security holder" means a Noteholder.

          "indenture to be qualified" means this Indenture.

          "indenture trustee" or "institutional trustee" means the Indenture
Trustee.

          "obligor" on the indenture securities means the Issuer and any other
obligor on the indenture securities.

          All other TIA terms used in this Indenture that are defined by the
TIA, defined by TIA reference to another statute or defined by Commission rule
have the meaning assigned to them by such definitions.

                                        3
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                                   ARTICLE II

                                    THE NOTES

          SECTION 2.1   FORM. The Notes, together with the Indenture Trustee's
certificate of authentication, shall be in substantially the forms set forth in
Exhibit A, with such appropriate insertions, omissions, substitutions and other
variations as are required or permitted by this Indenture and may have such
letters, numbers or other marks of identification and such legends or
endorsements placed thereon as may, consistently herewith, be determined by the
officers executing the Notes, as evidenced by their execution of the Notes. Any
portion of the text of any Note may be set forth on the reverse thereof, with an
appropriate reference thereto on the face of the Note.

          The Definitive Notes shall be typewritten, printed, lithographed or
engraved or produced by any combination of these methods (with or without steel
engraved borders), all as determined by the officers executing such Notes, as
evidenced by their execution of such Notes.

          Each Note shall be dated the date of its authentication. The terms of
the Notes set forth in Exhibit A are part of the terms of this Indenture.

          SECTION 2.2   EXECUTION, AUTHENTICATION AND DELIVERY. The Notes shall
be executed on behalf of the Issuer by any of its Authorized Officers. The
signature of any such Authorized Officer on the Notes may be manual or
facsimile.

          Notes bearing the manual or facsimile signature of individuals who
were at any time Authorized Officers of the Issuer shall bind the Issuer,
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the authentication and delivery of such Notes or did not hold
such offices at the date of such Notes.

          The Indenture Trustee shall upon Issuer Order authenticate and deliver
Notes for original issue in an aggregate principal amount of $1,490,670,000 and
EURO 500,000,000. The aggregate principal amount of Notes outstanding at any
time may not exceed such amount except as provided in Section 2.5.

          Each Note shall be dated the date of its authentication. The Floating
Rate Notes (other than the Class A-5 Notes) shall be issuable as registered
Floating Rate Notes in multiple denominations of $1,000. The Class A-5 Notes
shall be issuable as registered Class A-5 Notes in multiple denominations of
EURO 1,000. The Auction Rate Notes shall be issuable as registered Auction Rate
Notes in multiple denominations of $50,000.

          No Note shall be entitled to any benefit under this Indenture or be
valid or obligatory for any purpose, unless there appears on such Note a
certificate of authentication substantially in the form provided for herein
executed by the Indenture Trustee by the manual signature of one of its
authorized signatories, and such certificate upon any Note shall be conclusive
evidence, and the only evidence, that such Note has been duly authenticated and
delivered hereunder.

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          SECTION 2.3   TEMPORARY NOTES. Pending the preparation of Definitive
Notes, the Issuer may execute, and upon receipt of an Issuer Order the Indenture
Trustee shall authenticate and deliver, temporary Notes which are printed,
lithographed, typewritten, mimeographed or otherwise produced, of the tenor of
the Definitive Notes in lieu of which they are issued and with such variations
not inconsistent with the terms of this Indenture determined to be appropriate
by the Responsible Officer of the Issuer executing the temporary Notes, as
evidenced by his or her execution of such temporary Notes.

          If temporary Notes are issued, the Issuer will cause Definitive Notes
to be prepared without unreasonable delay. After the preparation of Definitive
Notes, the temporary Notes shall be exchangeable for Definitive Notes upon
surrender of the temporary Notes at the office or agency of the Issuer to be
maintained as provided in Section 3.2, without charge to the Noteholder. Upon
surrender for cancellation of any one or more temporary Notes, the Issuer shall
execute and the Indenture Trustee shall authenticate and deliver in exchange
therefor a like principal amount of Definitive Notes of authorized
denominations. Until so exchanged, the temporary Notes shall in all respects be
entitled to the same benefits under this Indenture as Definitive Notes.

          SECTION 2.4   REGISTRATION; REGISTRATION OF TRANSFER AND EXCHANGE. The
Issuer shall cause to be kept a register (the "Note Register") in which, subject
to such reasonable regulations as it may prescribe, the Issuer shall provide for
the registration of Notes and the registration of transfers of Notes. The
Indenture Trustee shall be "Note Registrar" for the purpose of registering Notes
and transfers of Notes as herein provided. Upon any resignation of any Note
Registrar, the Issuer shall promptly appoint a successor or, if it elects not to
make such an appointment, assume the duties of Note Registrar.

          If a Person other than the Indenture Trustee is appointed by the
Issuer as Note Registrar, the Issuer shall give the Indenture Trustee prompt
written notice of the appointment of such Note Registrar and of the location,
and any change in the location, of the Note Register, and the Indenture Trustee
shall have the right to inspect the Note Register at all reasonable times and to
obtain copies thereof, and the Indenture Trustee shall have the right to rely
upon a certificate executed on behalf of the Note Registrar by an Executive
Officer thereof as to the names and addresses of the Noteholders and the
principal amounts and number of such Notes.

          Upon surrender for registration of transfer of any Note at the office
or agency of the Issuer to be maintained as provided in Section 3.2, if the
requirements of Section 8-401(1) of the UCC are met, the Issuer shall execute,
and the Indenture Trustee shall authenticate and the Noteholder shall obtain
from the Indenture Trustee, in the name of the designated transferee or
transferees, one or more new Notes in any authorized denominations and a like
aggregate principal amount.

          At the option of the Noteholder, Notes may be exchanged for other
Notes in any authorized denominations and a like aggregate principal amount,
upon surrender of the Notes to be exchanged at such office or agency. Whenever
any Notes are so surrendered for exchange, the Issuer shall execute, and the
Indenture Trustee shall authenticate and the Noteholder shall obtain from the
Indenture Trustee, the Notes which the Noteholder making the exchange is
entitled to receive.

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          All Notes issued upon any registration of transfer or exchange of
Notes shall be the valid obligations of the Issuer, evidencing the same debt,
and entitled to the same benefits under this Indenture, as the Notes surrendered
upon such registration of transfer or exchange.

          Every Note presented or surrendered for registration of transfer or
exchange shall be duly endorsed by, or be accompanied by a written instrument of
transfer in form satisfactory to the Indenture Trustee duly executed by the
Noteholder thereof or such Noteholder's attorney duly authorized in writing,
with such signature guaranteed by an "eligible guarantor institution" meeting
the requirements of the Note Registrar, which requirements include membership or
participation in Securities Transfer Agent's Medallion Program ("STAMP") or such
other "signature guarantee program" as may be determined by the Note Registrar
in addition to, or in substitution for, STAMP, all in accordance with the
Exchange Act.

          No service charge shall be made to a Noteholder for any registration
of transfer or exchange of Notes, but the Indenture Trustee may require payment
of a sum sufficient to cover any tax or other governmental charge that may be
imposed in connection with any registration of transfer or exchange of Notes,
other than exchanges pursuant to Section 2.3 or 9.6 not involving any transfer.

          The preceding provisions of this Section notwithstanding, the Issuer
shall not be required to make and the Note Registrar need not register transfers
or exchanges of Notes selected for redemption or of any Note for a period of 15
days preceding the due date for any payment with respect to the Note.

          SECTION 2.5   MUTILATED, DESTROYED, LOST OR STOLEN NOTES. If (i) any
mutilated Note is surrendered to the Indenture Trustee, or the Indenture Trustee
receives evidence to its satisfaction of the destruction, loss or theft of any
Note, and (ii) there is delivered to the Issuer and the Indenture Trustee such
security or indemnity as may be required by each of them to hold the Issuer and
the Indenture Trustee harmless, then, in the absence of notice to the Issuer,
the Note Registrar or the Indenture Trustee that such Note has been acquired by
a bona fide purchaser, and provided that the requirements of Section 8-405 of
the UCC are met, the Issuer shall execute and upon its request the Indenture
Trustee shall authenticate and deliver, in exchange for or in lieu of any such
mutilated, destroyed, lost or stolen Note, a replacement Note; PROVIDED,
HOWEVER, that if any such destroyed, lost or stolen Note, but not a mutilated
Note, shall have become or within 15 days shall be due and payable, or shall
have been called for redemption, instead of issuing a replacement Note, the
Issuer may pay such destroyed, lost or stolen Note when so due or payable or
upon the Redemption Date without surrender thereof. If, after the delivery of
such replacement Note or payment of a destroyed, lost or stolen Note pursuant to
the proviso to the preceding sentence, a bona fide purchaser of the original
Note in lieu of which such replacement Note was issued presents for payment such
original Note, the Issuer and the Indenture Trustee shall be entitled to recover
such replacement Note (or such payment) from the Person to whom it was delivered
or any Person taking such replacement Note from such Person to whom such
replacement Note was delivered or any assignee of such Person, except a bona
fide purchaser, and shall be entitled to recover upon the security or indemnity
provided therefor to the extent of any loss, damage, cost or expense incurred by
the Issuer or the Indenture Trustee in connection therewith.

                                        6
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          Upon the issuance of any replacement Note under this Section, the
Issuer may require the payment by the Noteholder thereof of a sum sufficient to
cover any tax or other governmental charge that may be imposed in relation
thereto and any other reasonable expenses (including the fees and expenses of
the Indenture Trustee) connected therewith.

          Every replacement Note issued pursuant to this Section in replacement
of any mutilated, destroyed, lost or stolen Note shall constitute an original
additional contractual obligation of the Issuer, whether or not the mutilated,
destroyed, lost or stolen Note shall be at any time enforceable by anyone, and
shall be entitled to all the benefits of this Indenture equally and
proportionately with any and all other Notes duly issued hereunder.

          The provisions of this Section are exclusive and shall preclude (to
the extent lawful) all other rights and remedies with respect to the replacement
or payment of mutilated, destroyed, lost or stolen Notes.

          SECTION 2.6   PERSONS DEEMED OWNER. Prior to due presentment for
registration of transfer of any Note, the Issuer, the Indenture Trustee and any
agent of the Issuer or the Indenture Trustee may treat the Person in whose name
any Note is registered (as of the day of determination) as the owner of such
Note for the purpose of receiving payments of principal of, interest, if any, on
such Note and for all other purposes whatsoever, whether or not such Note be
overdue, and neither the Issuer, the Indenture Trustee nor any agent of the
Issuer or the Indenture Trustee shall be affected by notice to the contrary.

          SECTION 2.7   PAYMENT OF PRINCIPAL AND INTEREST; NOTE INTEREST
SHORTFALL. (a) The Notes shall accrue interest as provided in the forms of Notes
set forth in Exhibit A and, in the case of the Auction Rate Notes, Appendix A-2,
and such interest shall be payable on each applicable Distribution Date as
specified therein, subject to Section 3.1. Any installment of interest or
principal, if any, payable on any Note which is punctually paid or duly provided
for by the Issuer on the applicable Distribution Date shall be paid to the
Person in whose name such Note (or one or more Predecessor Notes) is registered
on the applicable Record Date by check mailed first-class, postage prepaid to
such Person's address as it appears on the Note Register on such Record Date,
except that, unless Definitive Notes have been issued pursuant to Section 2.12,
with respect to Notes registered on the Record Date in the name of the nominee
of the applicable Clearing Agency (initially, such nominee to be Cede & Co. or
The Bank of New York (Nominees) Limited, as applicable), payment shall be made
by wire transfer in immediately available funds to the account designated by
such nominee and except for the final installment of principal payable with
respect to such Note on a Distribution Date or on the Note Final Maturity Date
for such Note which shall be payable as provided below. The funds represented by
any such checks returned undelivered shall be held in accordance with Section
3.3.

     (b)  The principal of each Note shall be payable in installments on each
Distribution Date as provided in the forms of Note set forth in Exhibit A and,
in the case of the Auction Rate Notes, Appendix A-2. Notwithstanding the
foregoing, the entire unpaid principal amount of each class of the Notes shall
be due and payable, if not previously paid, on the Note Final Maturity Date for
such class of Notes and on the date on which an Event of Default shall have
occurred and be continuing if the Indenture Trustee or the Noteholders of the
Notes representing not less

                                        7
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than a majority of the Outstanding Amount of the Notes have declared the Notes
to be immediately due and payable in the manner provided in Section 5.2. All
principal payments on the Notes shall be made pro rata to the specific class of
Noteholders entitled thereto; provided that principal payments on the Auction
Rate Notes shall be made by lots of $50,000. The Indenture Trustee shall notify
the Person in whose name a Note is registered at the close of business on the
Record Date preceding the Distribution Date on which the Issuer expects that the
final installment of principal of and interest on such Note will be paid. Such
notice shall be mailed or transmitted by facsimile prior to such final
Distribution Date and shall specify that such final installment will be payable
only upon presentation and surrender of such Note and shall specify the place
where such Note may be presented and surrendered for payment of such
Installment. Notices in connection with redemptions of Notes shall be mailed to
Noteholders as provided in Section 10.2.

     (c)  If the Issuer defaults in a payment of interest at the applicable Note
Rate on the Notes, the Issuer shall pay the resulting Note Interest Shortfall on
the following Distribution Date as provided in the Administration Agreement.

          SECTION 2.8   CANCELLATION. All Notes surrendered for payment,
registration of transfer, exchange or redemption shall, if surrendered to any
Person other than the Indenture Trustee, be delivered to the Indenture Trustee
and shall be promptly cancelled by the Indenture Trustee. The Issuer may at any
time deliver to the Indenture Trustee for cancellation any Notes previously
authenticated and delivered hereunder which the Issuer may have acquired in any
manner whatsoever and all Notes so delivered shall be promptly cancelled by the
Indenture Trustee. No Notes shall be authenticated in lieu of or in exchange for
any Notes cancelled as provided in this Section, except as expressly permitted
by this Indenture. All canceled Notes may be held or disposed of by the
Indenture Trustee in accordance with its standard retention or disposal policy
as in effect at the time, unless the Issuer shall direct by an Issuer Order that
they be returned to it and so long as such Issuer Order is timely and the Notes
have not been previously disposed of by the Indenture Trustee.

          SECTION 2.9   RELEASE OF COLLATERAL. Subject to Section 11.1 and the
terms of the Basic Documents, the Indenture Trustee shall release property from
the lien of this Indenture only upon receipt of an Issuer Request accompanied by
an Officers' Certificate of the Issuer, an Opinion of Counsel and Independent
Certificates in accordance with TIA Sections 314(c) and 314(d)(1) or an Opinion
of Counsel in lieu of such Independent Certificates to the effect that the TIA
does not require any such Independent Certificates.

          SECTION 2.10  BOOK-ENTRY NOTES. The Notes, upon original issuance,
will be issued in the form of typewritten Notes representing the Book-Entry
Notes, to be delivered to the applicable initial Clearing Agency, by, or on
behalf of, the Issuer. Such Notes shall initially be registered on the Note
Register in the name of the nominee of each initial Clearing Agency, and no Note
Owner shall receive a Definitive Note (as defined below) representing such Note
Owner's interest in such Note, except as provided in Section 2.12. Unless and
until definitive, fully registered Notes (the "Definitive Notes") have been
issued to Note Owners pursuant to Section 2.12:

          (i)    the provisions of this Section shall be in full force and
effect;

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          (ii)   the Note Registrar and the Indenture Trustee, and their
respective directors, officers, employees and agents, may deal with the
applicable Clearing Agency for all purposes (including the payment of principal
of and interest and other amounts on the Notes) as the authorized representative
of the Note Owners;

          (iii)  to the extent that the provisions of this Section conflict with
any other provisions of this Indenture, the provisions of this Section shall
control;

          (iv)   the rights of Note Owners shall be exercised only through the
applicable Clearing Agency and shall be limited to those established by law and
agreements between such Note Owners and the applicable Clearing Agency and/or
the applicable Clearing Agency Participants pursuant to the Note Depository
Agreements; and unless and until Definitive Notes are issued pursuant to Section
2.12, the applicable initial Clearing Agency will make book-entry transfers
among the applicable Clearing Agency Participants and receive and transmit
payments of principal of and interest and other amounts on the Notes to such
applicable Clearing Agency Participants; and

          (v)    whenever this Indenture requires or permits actions to be taken
based upon instructions or directions of Noteholders of Notes evidencing a
specified percentage of the Outstanding Amount of the Notes, the applicable
Clearing Agency shall be deemed to represent such percentage only to the extent
that it has received instructions to such effect from Note Owners and/or
applicable Clearing Agency Participants owning or representing, respectively,
such required percentage of the beneficial interest in the Notes and has
delivered such instructions to the Indenture Trustee.

          SECTION 2.11  NOTICES TO CLEARING AGENCY. Whenever a notice or other
communication to the Noteholders is required under this Indenture, unless and
until Definitive Notes shall have been issued to Note Owners pursuant to Section
2.12, the Indenture Trustee shall give all such notices and communication
specified herein to be given to Noteholders to the applicable Clearing Agency.

          SECTION 2.12  DEFINITIVE NOTES. If (i) the Administrator advises the
Indenture Trustee in writing that a Clearing Agency is no longer willing or able
to discharge its responsibilities with respect to the applicable Notes, and the
Administrator is unable to locate a successor, (ii) the Administrator at its
option advises the Indenture Trustee in writing that it elects to terminate the
book-entry system through that Clearing Agency or (iii) after the occurrence of
an Event of Default, a Servicer Default or an Administrator Default, Note Owners
representing beneficial interests aggregating at least a majority of the
Outstanding Amount of the applicable Notes advise the applicable Clearing Agency
(which shall then notify the Indenture Trustee) in writing that the continuation
of a book-entry system through such Clearing Agency is no longer in the best
interests of such Note Owners, then the Indenture Trustee shall cause such
Clearing Agency to notify all Note Owners cleared, through such Clearing Agency,
of the occurrence of any such event and of the availability of Definitive Notes
to Note Owners requesting the same. Upon surrender to the Indenture Trustee of
the typewritten Notes representing the Book-Entry Notes by a Clearing Agency,
accompanied by registration instructions, the Issuer shall execute and the
Indenture Trustee shall authenticate the Definitive Notes in accordance with the
instructions of such Clearing Agency. None of the Issuer, the Note

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Registrar or the Indenture Trustee shall be liable for any delay in delivery of
such instructions and may conclusively rely on, and shall be protected in
relying on, such instructions. Upon the issuance of Definitive Notes, the
Indenture Trustee shall recognize the holders of the Definitive Notes as
Noteholders.

                                   ARTICLE III

                                    COVENANTS

          SECTION 3.1   PAYMENT TO NOTEHOLDERS. The Issuer shall duly and
punctually pay the principal and interest, if any, with respect to the Notes in
accordance with the terms of the Notes and this Indenture. Without limiting the
foregoing, the Issuer shall cause to be distributed to Noteholders in accordance
with the Administration Agreement that portion of the amounts on deposit in the
Trust Accounts on a Distribution Date (other than any Eligible Investments
deposited therein that will mature on the Business Day preceding a subsequent
Distribution Date) which the Noteholders are entitled to receive pursuant to the
Administration Agreement. Amounts properly withheld under the Code by any Person
from a payment to any Noteholder of interest and/or principal shall be
considered as having been paid by the Issuer to such Noteholder for all purposes
of this Indenture.

          SECTION 3.2   MAINTENANCE OF OFFICE OR AGENCY. The Issuer shall
maintain in the Borough of Manhattan, The City of New York, an office or agency
where Notes may be surrendered for registration of transfer or exchange, and
where notices and demands to or upon the Issuer in respect of the Notes and this
Indenture may be served. The Issuer hereby initially appoints the Indenture
Trustee to serve as its agent for the foregoing purposes. The Issuer shall give
prompt written notice to the Indenture Trustee of the location, and of any
change in the location, of any such office or agency. If at any time the Issuer
shall fail to maintain any such office or agency or shall fail to furnish the
Indenture Trustee with the address thereof, such surrenders, notices and demands
may be made or served at the Corporate Trust Office, and the Issuer hereby
appoints the Indenture Trustee as its agent to receive all such surrenders,
notices and demands.

          SECTION 3.3   MONEY FOR PAYMENTS TO BE HELD IN TRUST. As provided in
Section 8.2(a) and (b), all payments of amounts due and payable with respect to
any Notes that are to be made from amounts distributed from the Collection
Account or any other Trust Account pursuant to Section 2.7 and 2.8 of the
Administration Agreement shall be made on behalf of the Issuer by the Indenture
Trustee or by another Paying Agent, and no amounts so distributed from the
Collection Account for payments of Notes shall be paid over to the Issuer except
as provided in this Section.

          On or before the Business Day next preceding each Distribution Date
and Redemption Date, the Issuer shall distribute or cause to be distributed to
the Indenture Trustee (or any other Paying Agent) an aggregate sum sufficient to
pay the amounts then becoming due under the Notes, such sum to be held in trust
for the benefit of the Persons entitled thereto and (unless the Paying Agent is
the Indenture Trustee) shall promptly notify the Indenture Trustee of its action
or failure so to act.

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          The Issuer shall cause each Paying Agent other than the Indenture
Trustee to execute and deliver to the Indenture Trustee an instrument in which
such Paying Agent shall agree with the Indenture Trustee (and if the Indenture
Trustee acts as Paying Agent, it hereby so agrees), subject to the provisions of
this Section, that such Paying Agent will:

          (i)    hold all sums held by it for the payment of amounts due with
respect to the Notes in trust for the benefit of the Persons entitled thereto
until such sums shall be paid to such Persons or otherwise disposed of as herein
provided and pay such sums to such Persons as herein provided;

          (ii)   give the Indenture Trustee notice of any default by the Issuer
of which it has actual knowledge (or any other obligor upon the Notes) in the
making of any payment required to be made with respect to the Notes;

          (iii)  at any time during the continuance of any such default, upon
the written request of the Indenture Trustee, forthwith pay to the Indenture
Trustee all sums so held in trust by such Paying Agent;

          (iv)   immediately resign as a Paying Agent and forthwith pay to the
Indenture Trustee all sums held by it in trust for the payment of Notes if at
any time it ceases to meet the standards required to be met by a Paying Agent at
the time of its appointment; and

          (v)    comply with all requirements of the Code with respect to the
withholding from any payments made by it on any Notes of any applicable
withholding taxes imposed thereon and with respect to any applicable reporting
requirements in connection therewith.

          The Issuer may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, by Issuer
Order direct any Paying Agent to pay to the Indenture Trustee all sums held in
trust by such Paying Agent, such sums to be held by the Indenture Trustee upon
the same trusts as those upon which the sums were held by such Paying Agent; and
upon such payment by any Paying Agent to the Indenture Trustee, such Paying
Agent shall be released from all further liability with respect to such money.

          Subject to applicable laws with respect to escheat of funds, any money
held by the Indenture Trustee or any Paying Agent in trust for the payment of
any amount due with respect to any Note and remaining unclaimed for two years
after such amount has become due and payable shall be discharged from such trust
and be paid to the Issuer on Issuer Request or if the Issuer has been terminated
to the Depositor upon its written request; and the Noteholder thereof shall
thereafter, as an unsecured general creditor, look only to the Issuer for
payment thereof (but only to the extent of the amounts so paid to the Issuer),
and all liability of the Indenture Trustee or such Paying Agent with respect to
such trust money shall thereupon cease; PROVIDED, HOWEVER, that the Indenture
Trustee or such Paying Agent, before being required to make any such repayment,
shall at the expense and direction of the Issuer cause to be published once, in
a newspaper published in the English language, customarily published on each
Business Day and of general circulation in The City of New York, notice that
such money remains unclaimed and that, after a date specified therein, which
shall not be less than 30 days from the date of such publication, any unclaimed
balance of such money then remaining will be repaid to the Issuer.

                                       11
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The Indenture Trustee shall also adopt and employ, at the expense of the Issuer,
any other reasonable means of notification of such repayment (including mailing
notice of such repayment to Noteholders whose Notes have been called but have
not been surrendered for redemption or whose right to or interest in moneys due
and payable but not claimed is determinable from the records of the Indenture
Trustee or of any Paying Agent, at the last address of record for each such
Noteholder).

          SECTION 3.4   EXISTENCE. The Issuer shall keep in full effect its
existence, rights and franchises as a statutory trust under the laws of the
State of Delaware (unless it becomes, or any successor Issuer hereunder is or
becomes, organized under the laws of any other State or of the United States of
America, in which case the Issuer shall keep in full effect its existence,
rights and franchises under the laws of such other jurisdiction) and shall
obtain and preserve its qualification to do business in each jurisdiction in
which such qualification is or shall be necessary to protect the validity and
enforceability of this Indenture, the Notes, the Collateral and each other
instrument or agreement included in the Indenture Trust Estate.

          SECTION 3.5   PROTECTION OF INDENTURE TRUST ESTATE. The Issuer will
from time to time execute and deliver all such supplements and amendments hereto
and all such financing statements, continuation statements, will take such other
action necessary or advisable to:

          (i)    maintain or preserve the lien and security  interest (and the
priority thereof) of this Indenture or carry out more effectively the purposes
hereof;

          (ii)   perfect, publish notice of or protect the validity of any grant
made or to be made by this Indenture;

          (iii)  enforce any of the Collateral; or

          (iv)   preserve and defend title to the Indenture Trust Estate and the
rights of the Indenture Trustee and the Noteholders in such Indenture Trust
Estate against the claims of all persons and parties.

          The Issuer hereby designates the Indenture Trustee its agent and
attorney-in-fact to execute any financing statement, continuation statement or
other instrument required to be executed pursuant to this Section.

          SECTION 3.6   OPINIONS AS TO INDENTURE TRUST ESTATE. (a) On the
Closing Date, the Issuer shall furnish to the Indenture Trustee an Opinion of
Counsel either stating that, in the opinion of such counsel, such action has
been taken with respect to the recording and filing of this Indenture as is
necessary to perfect and make effective the lien and security interest of this
Indenture and reciting the details of such action, or stating that, in the
opinion of such counsel, no such action is necessary to make such lien and
security interest effective.

     (b)  On or before December 31 in each calendar year, beginning in 2003, the
Issuer shall furnish to the Indenture Trustee an Opinion of Counsel either
stating that, in the opinion of such counsel, such action has been taken with
respect to the recording, filing, re-recording and refiling of this Indenture
and any indentures supplemental hereto as is necessary to maintain the lien and
security interest created by this Indenture and relating the details of such
action or

                                       12
<Page>

stating that in the opinion of such counsel no such action is necessary to
maintain such lien and security interest. Such Opinion of Counsel shall also
describe the recording, filing, recording and refiling of this Indenture and any
indentures supplemental hereto that will, in the opinion of such counsel, be
required to maintain the lien and security interest of this Indenture until
December 31 in the following calendar year.

          SECTION 3.7   PERFORMANCE OF OBLIGATIONS; SERVICING OF TRUST STUDENT
LOANS. (a) The Issuer will not take any action and will use its best efforts not
to permit any action to be taken by others that would release any Person from
any of such Person's material covenants or obligations under any instrument or
agreement included in the Indenture Trust Estate or that would result in the
amendment, hypothecation, subordination, termination or discharge of, or impair
the validity or effectiveness of, any such instrument or agreement, except as
expressly provided in this Indenture, any other Basic Document or such other
instrument or agreement.

     (b)  The Issuer may contract with other Persons to assist it in performing
its duties under this Indenture, and any performance of such duties by a Person
identified to the Indenture Trustee in an Officers' Certificate of the Issuer
shall be deemed to be action taken by the Issuer; PROVIDED, HOWEVER, the Issuer
shall not be liable for any acts of Persons with whom the Issuer has contracted
with reasonable care. Initially, the Issuer has contracted with the Servicer and
the Administrator to assist the Issuer in performing its duties under this
Indenture. The Issuer shall give written notice to the Indenture Trustee and
each Rating Agency of any such contract with any other Person.

     (c)  The Issuer shall punctually perform and observe all of its obligations
and agreements contained in this Indenture, the other Basic Documents and the
instruments and agreements included in the Indenture Trust Estate, including
filing or causing to be filed all UCC financing statements and continuation
statements prepared by the Issuer and required to be filed by the terms of this
Indenture and the Administration Agreement in accordance with and within the
time periods provided for herein and therein. Except as otherwise expressly
provided therein, the Issuer shall not waive, amend, modify, supplement or
terminate any Basic Document or any provision thereof without the consent of the
Indenture Trustee or the Noteholders of at least a majority of the Outstanding
Amount of the Notes. The Issuer shall give written notice to each Rating Agency
of any such waiver, amendment, modification, supplement or termination.

     (d)  If a Responsible Officer of the Issuer shall have knowledge of the
occurrence of a Servicer Default or an Administrator Default under the Servicing
Agreement or the Administration Agreement, respectively, the Issuer shall
promptly notify the Indenture Trustee and the Rating Agencies thereof, and shall
specify in such notice the action, if any, the Issuer is taking with respect to
such default. If a Servicer Default shall arise from the failure of the Servicer
to perform any of its duties or obligations under the Servicing Agreement, or an
Administrator Default shall arise from the failure of the Administrator to
perform any of its duties or obligations under the Administration Agreement, as
the case may be, with respect to the Trust Student Loans, the Issuer shall take
all reasonable steps available to it to enforce its rights under the Basic
Documents in respect of such failure.

     (e)  As promptly as possible after the giving of notice of termination to
the Servicer of the Servicer's rights and powers, pursuant to Section 5.1 of the
Servicing Agreement, or to the

                                       13
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Administrator of the Administrator's rights and powers, pursuant to Section 5.1
of the Administration Agreement, the Issuer shall appoint a successor servicer
(the "Successor Servicer") or a successor administrator (the "Successor
Administrator"), respectively, and such Successor Servicer or Successor
Administrator, as the case may be, shall accept its appointment by a written
assumption in a form acceptable to the Indenture Trustee. In the event that a
Successor Servicer or Successor Administrator has not been appointed and
accepted its appointment at the time when the Servicer or Administrator, as the
case may be, ceases to act as Servicer or Administrator, respectively, the
Indenture Trustee without further action shall automatically be appointed the
Successor Servicer or Successor Administrator, as the case may be. The Indenture
Trustee may resign as the Servicer or the Administrator by giving written notice
of resignation to the Issuer and in such event will be released from such duties
and obligations, such release not to be effective until the date a new servicer
or a new administrator enters into an agreement with the Issuer as provided
below; PROVIDED, HOWEVER, that nothing herein shall require or permit the
Indenture Trustee to act as Servicer, or otherwise service the Trust Student
Loans, in violation of the Higher Education Act. Upon delivery of any such
notice to the Issuer, the Issuer shall obtain a new servicer as the Successor
Servicer under the Servicing Agreement or a new administrator as the Successor
Administrator under the Administration Agreement, as the case may be. Any
Successor Servicer or Successor Administrator, other than the Indenture Trustee,
shall (i) be an established institution (A) that satisfies any requirements of
the Higher Education Act applicable to servicers and (B) whose regular business
includes the servicing or administration of student loans and (ii) enter into a
servicing agreement or an administration agreement, respectively, with the
Issuer having substantially the same provisions as the provisions of the
Servicing Agreement and the Administration Agreement, as applicable. If within
30 days after the delivery of the notice referred to above, the Issuer shall not
have obtained such a new servicer or new administrator, as the case may be, the
Indenture Trustee may appoint, or may petition a court of competent jurisdiction
to appoint, a Successor Servicer or Successor Administrator; PROVIDED, HOWEVER,
that such right to appoint or to petition for the appointment of any such
successor shall in no event relieve the Indenture Trustee from any obligations
otherwise imposed on it under the Basic Documents until such successor has in
fact assumed such appointment. In connection with any such appointment, the
Indenture Trustee may make such arrangements for the compensation of such
successor as it and such successor shall agree, subject to the limitations set
forth below and in the Servicing Agreement or Administration Agreement, as
applicable, and in accordance with Section 5.2 of the Servicing Agreement and
Section 5.2 of the Administration Agreement, the Issuer shall enter into an
agreement with such successor for the servicing or administration of the Trust
Student Loans (such agreement to be in form and substance satisfactory to the
Indenture Trustee). If the Indenture Trustee shall succeed as provided herein to
the Servicer's duties as Servicer with respect to the Trust Student Loans, or
the Administrator's duties with respect to the Issuer and the Trust Student
Loans, as the case may be, it shall do so in its individual capacity and not in
its capacity as Indenture Trustee and, accordingly, the provisions of Article VI
hereof shall be inapplicable to the Indenture Trustee in its duties as the
successor to the Servicer or the Administrator, as the case may be, and the
servicing or administration of the Trust Student Loans. In case the Indenture
Trustee shall become successor to the Servicer or the Administrator, the
Indenture Trustee shall be entitled to appoint as Servicer or as Administrator,
as the case may be, any one of its Affiliates, provided that such appointment
shall not affect or

                                       14
<Page>

alter in any way the liability of the Indenture Trustee as Successor Servicer or
Successor Administrator, respectively, in accordance with the terms hereof.

     (f)  Upon any termination of the Servicer's rights and powers pursuant to
the Servicing Agreement, or any termination of the Administrator's rights and
powers pursuant to the Administration Agreement, as the case may be, the Issuer
shall promptly notify the Indenture Trustee and each Rating Agency. As soon as a
Successor Servicer or a Successor Administrator is appointed, the Issuer shall
notify the Indenture Trustee and each Rating Agency of such appointment,
specifying in such notice the name and address of such Successor Servicer or
such Successor Administrator.

     (g)  Without derogating from the absolute nature of the assignment granted
to the Indenture Trustee under this Indenture or the rights of the Indenture
Trustee hereunder, the Issuer agrees that it will not, without the prior written
consent of the Indenture Trustee or the Noteholders of at least a majority in
Outstanding Amount of the Notes, amend, modify, waive, supplement, terminate or
surrender, or agree to any amendment, modification, supplement, termination,
waiver or surrender of, the terms of any Collateral or the Basic Documents,
except to the extent otherwise provided in the Basic Documents, or waive timely
performance or observance by the Servicer, the Administrator, the Depositor,
Sallie Mae, the Issuer or the Eligible Lender Trustee under the Basic Documents;
PROVIDED, HOWEVER, that no such amendment shall (i) increase or reduce in any
manner the amount of, or accelerate or delay the timing of, distributions that
are required to be made for the benefit of the Noteholders, or (ii) reduce the
aforesaid percentage of the Notes which are required to consent to any such
amendment, without the consent of the Noteholders of all the Outstanding Notes.
If any such amendment, modification, supplement or waiver shall be so consented
to by the Indenture Trustee or such Noteholders, the Issuer shall give written
notice thereof to each Rating Agency and agrees, promptly following a request by
the Indenture Trustee to do so, to execute and deliver, in its own name and at
its own expense, such agreements, instruments, consents and other documents as
the Indenture Trustee may deem necessary or appropriate in the circumstances.

          SECTION 3.8   NEGATIVE COVENANTS. So long as any Notes are
Outstanding, the Issuer shall not:

          (i)    except as expressly permitted by this Indenture or any other
Basic Document, sell, transfer, exchange or otherwise dispose of any of the
properties or assets of the Issuer, including those included in the Indenture
Trust Estate, unless directed to do so by the Indenture Trustee;

          (ii)   claim any credit on, or make any deduction from the principal
or interest payable in respect of, the Notes (other than amounts properly
withheld from such payments under the Code or applicable state law) or assert
any claim against any present or former Noteholder by reason of the payment of
the taxes levied or assessed upon any part of the Indenture Trust Estate; or

          (iii)  (A) permit the validity or effectiveness of this Indenture to
be impaired, or permit the lien of this Indenture to be amended, hypothecated,
subordinated, terminated or

                                       15
<Page>

discharged, or permit any Person to be released from any covenants or
obligations with respect to the Notes under this Indenture except as may be
expressly permitted hereby, (B) permit any lien, charge, excise, claim, security
interest, mortgage or other encumbrance (other than the lien of this Indenture)
to be created on or extend to or otherwise arise upon or burden the Indenture
Trust Estate or any part thereof or any interest therein or the proceeds thereof
(other than tax liens and other liens that arise by operation of law, and other
than as expressly permitted by the Basic Documents) or (C) permit the lien of
this Indenture not to constitute a valid first priority (other than with respect
to any such tax or other lien) security interest in the Indenture Trust Estate.

          (iv)   enter into any amendment to the Swap Agreement to cure any
ambiguity in, or to correct or supplement any provision of the Swap Agreement,
unless the Issuer has determined, and the Indenture Trustee has agreed in
writing at the written direction of the Issuer, that the amendment will not
materially adversely affect the interests of the Noteholders and provided that
the Indenture Trustee has provided reasonable notice to the Rating Agencies of
such amendment and each Rating Agency has provided written confirmation that the
then current rating of the Notes will not be lowered or withdrawn.

          SECTION 3.9   ANNUAL STATEMENT AS TO COMPLIANCE. The Issuer will
deliver to the Indenture Trustee and each Rating Agency, within 120 days after
the end of each fiscal year of the Issuer (commencing with the fiscal year
ending December 31, 2003), an Officers' Certificate of the Issuer stating that:

          (i)    a review of the activities of the Issuer during such year and
of performance under this Indenture has been made under such Authorized
Officers' supervision; and

          (ii)   to the best of such Authorized Officers' knowledge, based on
such review, the Issuer has complied with all conditions and covenants under
this Indenture throughout such year, or, if there has been a default in the
compliance of any such condition or covenant, specifying each such default known
to such Authorized Officers and the nature and status thereof.

          SECTION 3.10  ISSUER MAY CONSOLIDATE, ETC., ONLY ON CERTAIN TERMS

     (a)  The Issuer shall not consolidate or merge with or into any other
Person, unless:

          (i)    the Person (if other than the Issuer) formed by or surviving
such consolidation or merger shall be a Person organized and existing under the
laws of the United States of America or any State and shall expressly assume, by
an indenture supplemental hereto, executed and delivered to the Indenture
Trustee, in form satisfactory to the Indenture Trustee, the due and punctual
payment of the principal of, and interest, if any, on all Notes and the
performance or observance of every agreement and covenant of this Indenture on
the part of the Issuer to be performed or observed, all as provided herein;

          (ii)   immediately after giving effect to such transaction, no Default
shall have occurred and be continuing;

                                       16
<Page>

          (iii)  the Rating Agency Condition shall have been satisfied with
respect to such transaction;

          (iv)   the Issuer shall have received an Opinion of Counsel (and shall
have delivered copies thereof to the Indenture Trustee) to the effect that such
transaction will not have any material adverse Federal or Delaware state tax
consequence to the Issuer or any Noteholder;

          (v)    any action as is necessary to maintain the lien and security
interest created by this Indenture shall have been taken; and

          (vi)   the Issuer shall have delivered to the Indenture Trustee an
Officers' Certificate of the Issuer and an Opinion of Counsel each stating that
such consolidation or merger and such supplemental indenture comply with this
Article III and that all conditions precedent herein provided for relating to
such transaction have been complied with (including any filing required by the
Exchange Act).

     (b)  The Issuer shall not convey or transfer all or substantially all its
properties or assets, including those included in the Indenture Trust Estate, to
any Person, unless:

          (i)    the Person that acquires by conveyance or transfer the
properties and assets of the Issuer the conveyance or transfer of which is
hereby restricted shall (A) be a United States citizen or a Person organized and
existing under the laws of the United States of America or any State, (B)
expressly assume, by an indenture supplemental hereto, executed and delivered to
the Indenture Trustee, in form satisfactory to the Indenture Trustee, the due
and punctual payment of the principal of, and interest, if any, on all Notes and
the performance or observance of every agreement and covenant of this Indenture
on the part of the Issuer to be performed or observed, all as provided herein,
(C) expressly agree by means of such supplemental indenture that all right,
title and interest so conveyed or transferred shall be subject and subordinate
to the rights of Noteholders, (D) unless otherwise provided in such supplemental
indenture, expressly agree to indemnify, defend and hold harmless the Issuer
against and from any loss, liability or expense arising under or related to this
Indenture and the Notes and (E) expressly agree by means of such supplemental
indenture that such Person (or if a group of Persons, then one specified Person)
shall make all filings with the Commission (and any other appropriate Person)
required by the Exchange Act in connection with the Notes;

          (ii)   immediately after giving effect to such transaction, no Default
shall have occurred and be continuing;

          (iii)  the Rating Agency Condition shall have been satisfied with
respect to such transaction;

          (iv)   the Issuer shall have received an Opinion of Counsel (and shall
have delivered copies thereof to the Indenture Trustee) to the effect that such
transaction will not have any material adverse Federal or Delaware state tax
consequence to the Issuer or any Noteholder;

          (v)    any action as is necessary to maintain the lien and security
interest created by this Indenture shall have been taken; and

                                       17
<Page>

          (vi)   the Issuer shall have delivered to the Indenture Trustee an
Officers' Certificate of the Issuer and an Opinion of Counsel each stating that
such conveyance or transfer and such supplemental indenture comply with this
Article III and that all conditions precedent herein provided for relating to
such transaction have been complied with (including any filing required by the
Exchange Act).

          SECTION 3.11  SUCCESSOR OR TRANSFEREE. (a) Upon any consolidation or
merger of the Issuer in accordance with Section 3.10(a), the Person formed by or
surviving such consolidation or merger (if other than the Issuer) shall succeed
to, and be substituted for, and may exercise every right and power of, the
Issuer under this Indenture with the same effect as if such Person had been
named as the Issuer herein.

     (b)  Upon a conveyance or transfer of all the assets and properties of the
Issuer pursuant to Section 3.10(b), SLM Student Loan Trust 2002-7 will be
released from every covenant and agreement of this Indenture to be observed or
performed on the part of the Issuer with respect to the Notes immediately upon
the delivery by the Issuer of written notice to the Indenture Trustee stating
that SLM Student Loan Trust 2002-7 is to be so released.

          SECTION 3.12  NO OTHER BUSINESS. The Issuer shall not engage in any
business other than financing, purchasing, owning, selling and managing the
Trust Student Loans in the manner contemplated by this Indenture and the other
Basic Documents and activities incidental thereto.

          SECTION 3.13  NO BORROWING. The Issuer shall not issue, incur, assume,
guarantee or otherwise become liable, directly or indirectly, for any
indebtedness except for the Notes.

          SECTION 3.14  OBLIGATIONS OF SERVICER AND ADMINISTRATOR. The Issuer
shall cause the Servicer to comply with Sections 3.1, 3.2 and 3.3 of the
Administration Agreement and Section 3.7 of the Servicing Agreement and the
Administrator to comply with Sections 2.9, 3.1, 3.2 and 3.3 of the
Administration Agreement.

          SECTION 3.15  GUARANTEES, LOANS, ADVANCES AND OTHER LIABILITIES.
Except as contemplated by this Indenture and the other Basic Documents, the
Issuer shall not make any loan or advance or credit to, or guarantee (directly
or indirectly or by an instrument having the effect of assuring another's
payment or performance on any obligation or capability of so doing or
otherwise), endorse or otherwise become contingently liable, directly or
indirectly, in connection with the obligations, stocks or dividends of, or own,
purchase, repurchase or acquire (or agree contingently to do so) any stock,
obligations, assets or securities of, or any other interest in, or make any
capital contribution to, any other Person.

          SECTION 3.16  CAPITAL EXPENDITURES. The Issuer shall not make any
expenditure (by long-term or operating lease or otherwise) for capital assets
(either realty or personalty).

          SECTION 3.17  RESTRICTED PAYMENTS. The Issuer shall not, directly or
indirectly, (i) pay any dividend or make any distribution (by reduction of
capital or otherwise), whether in cash, property, securities or a combination
thereof, to the Eligible Lender Trustee or any owner

                                       18
<Page>

of a beneficial interest in the Issuer or otherwise with respect to any
ownership or equity interest or security in or of the Issuer or to the Servicer
or the Administrator, (ii) redeem, purchase, retire or otherwise acquire for
value any such ownership or equity interest or security or (iii) set aside or
otherwise segregate any amounts for any such purpose; PROVIDED, HOWEVER, that
the Issuer may make, or cause to be made, distributions to the Servicer, the
Eligible Lender Trustee, the Indenture Trustee, the Noteholders, the
Administrator and the Depositor as contemplated by, and to the extent funds are
available for such purpose under, this Indenture and the other Basic Documents.
The Issuer will not, directly or indirectly, make payments to or distributions
from the Collection Account except in accordance with this Indenture and the
other Basic Documents.

          SECTION 3.18  NOTICE OF EVENTS OF DEFAULT. The Issuer shall give the
Indenture Trustee and the Rating Agencies prompt written notice of each Event of
Default hereunder and each default on the part of the Depositor of its
obligations under the Sale Agreement, Sallie Mae of its obligations under the
Purchase Agreement, the Servicer of its obligations under the Servicing
Agreement, or the Administrator of its obligations under the Administration
Agreement. In addition, the Issuer shall deliver to the Indenture Trustee and
each Rating Agency, within five days after the occurrence thereof, written
notice in the form of an Officers' Certificate of the Issuer of any event which
with the giving of notice and the lapse of time would become an Event of Default
under Section 5.1(iii), its status and what action the Issuer is taking or
proposes to take with respect thereto.

          SECTION 3.19  FURTHER INSTRUMENTS AND ACTS. Upon request of the
Indenture Trustee, the Issuer will execute and deliver such further instruments
and do such further acts as may be reasonably necessary or proper to carry out
more effectively the purpose of this Indenture.

                                   ARTICLE IV

                           SATISFACTION AND DISCHARGE

          SECTION 4.1   SATISFACTION AND DISCHARGE OF INDENTURE. This Indenture
shall cease to be of further effect with respect to the Notes except as to (i)
rights of registration of transfer and exchange, (ii) substitution of mutilated,
destroyed, lost or stolen Notes, (iii) rights of Noteholders to receive payments
of principal thereof and interest thereon, (iv) Sections 3.3, 3.4, 3.5, 3.8,
3.10, 3.12 and 3.13, (v) the rights, obligations and immunities of the Indenture
Trustee hereunder (including, without limitation, the rights of the Indenture
Trustee under Section 6.7 and the obligations of the Indenture Trustee under
Section 4.2) and (vi) the rights of Noteholders as beneficiaries hereof with
respect to the property so deposited with the Indenture Trustee payable to all
or any of them, and the Indenture Trustee, on demand of and at the expense of
the Issuer, shall execute proper instruments acknowledging satisfaction and
discharge of this Indenture with respect to the Notes, when:

     (a)  either

          (1)    all Notes theretofore authenticated and delivered (other than
(i) Notes that have been destroyed, lost or stolen and that have been replaced
or paid as provided in Section 2.5 and (ii) Notes for whose payment money has
theretofore been deposited in trust or segregated

                                       19
<Page>

and held in trust by the Issuer and thereafter repaid to the Issuer or
discharged from such trust, as provided in Section 3.3) have been delivered to
the Indenture Trustee for cancellation; or

          (2)    all Notes not theretofore delivered to the Indenture Trustee
for cancellation

                 (i)    have become due and payable,

                 (ii)   will become due and payable at  their respective Note
Final Maturity Date, within one year, or

                 (iii)  are to be called for redemption within one year under
arrangements satisfactory to the Indenture Trustee for the giving of notice of
redemption by the Indenture Trustee in the name, and at the expense, of the
Issuer, and the Issuer, in the case of (i), (ii) or (iii) above, has irrevocably
deposited or caused to be irrevocably deposited with the Indenture Trustee cash
or direct obligations of or obligations guaranteed by the United States of
America (which will mature prior to the date such amounts are payable), in trust
for such purpose, in an amount sufficient to pay and discharge the entire
indebtedness on such Notes not theretofore delivered to the Indenture Trustee
for cancellation when due to the Note Final Maturity Date;

     (b)  the Issuer has paid or caused to be paid all other sums payable
hereunder by the Issuer; and

     (c)  the Issuer has delivered to the Indenture Trustee an Officers'
Certificate of the Issuer, an Opinion of Counsel and (if required by the TIA or
the Indenture Trustee) an Independent Certificate from a firm of certified
public accountants, each meeting the applicable requirements of Section 11.1(a)
and, subject to Section 11.2, each stating that all conditions precedent herein
provided for relating to the satisfaction and discharge of this Indenture have
been complied with.

          SECTION 4.2   APPLICATION OF TRUST MONEY. All moneys deposited with
the Indenture Trustee pursuant to Section 4.1 hereof shall be held in trust and
applied by it, in accordance with the provisions of the Notes and this
Indenture, to the payment, either directly or through any Paying Agent, as the
Indenture Trustee may determine, to the Noteholders of the particular Notes for
the payment or redemption of which such moneys have been deposited with the
Indenture Trustee, of all sums due and to become due thereon for principal and
interest; but such moneys need not be segregated from other funds except to the
extent required herein or in the Administration Agreement or required by law.

          SECTION 4.3   REPAYMENT OF MONEYS HELD BY PAYING AGENT. In connection
with the satisfaction and discharge of this Indenture with respect to the Notes,
all moneys then held by any Paying Agent other than the Indenture Trustee under
the provisions of this Indenture with respect to such Notes shall, upon demand
of the Issuer, be paid to the Indenture Trustee to be held and applied according
to Section 3.3 and thereupon such Paying Agent shall be released from all
further liability with respect to such moneys.

          SECTION 4.4   AUCTION OF TRUST STUDENT LOANS. Any Trust Student Loans
remaining in the Trust as of the end of the Collection Period immediately
preceding the earliest

                                       20
<Page>

Quarterly Distribution Date on which the Pool Balance is equal to 10% or less of
the initial Pool Balance three business days prior to such Quarterly
Distribution Date (the "Trust Auction Date") shall be offered for sale by the
Indenture Trustee unless the Servicer has exercised its option to purchase the
Trust Estate as described in Section 6.1A of the Administration Agreement with
respect to such Servicer Distribution Date. The Servicer will be deemed to have
waived such option if it fails to notify the Eligible Lender Trustee and the
Indenture Trustee of its exercise thereof in writing prior to the Indenture
Trustee's acceptance of a bid to purchase such Trust Student Loans; PROVIDED,
HOWEVER, that there shall be no such offer for sale if the Indenture Trustee
fails to provide notice to the Servicer in accordance with this Section 4.4. The
Indenture Trustee shall provide written notice to the Servicer of any such offer
for sale at least 5 business days in advance of the Trust Auction Date. The
Indenture Trustee shall permit the Servicer or any of its Affiliates including
Sallie Mae and the Servicer to offer bids only if the Pool Balance as of the
applicable Trust Auction Date is equal to 10% or less of the Initial Pool
Balance and such bid does not exceed the fair market value of the Trust Student
Loans as of the Trust Auction Date. If at least two bids are received, the
Indenture Trustee shall solicit and resolicit new bids from all participating
bidders until only one bid remains or the remaining bidders decline to resubmit
bids. The Indenture Trustee shall accept the highest of such remaining bids if
it is equal to or in excess of both the Minimum Purchase Amount and the fair
market value of such Trust Student Loans as of the end of the Collection Period
immediately preceding the Trust Auction Date. If at least two bids are not
received or the highest bid after the resolicitation process is completed is not
equal to or in excess of the higher of the Minimum Purchase Amount and the fair
market value of the Trust Student Loans, the Indenture Trustee shall not
consummate such sale. The Indenture Trustee may consult, and, at the direction
of the Depositor, shall consult, with a financial advisor, including an
underwriter of the Notes or the Administrator, to determine if the fair market
value of the Trust Student Loans has been offered. The proceeds of any such sale
will be applied in the order of priority set forth in Section 5.4 (b). If the
sale is not consummated in accordance with the foregoing, the Indenture Trustee
may, but shall not be under any obligation to, solicit bids for sale of the
Trust Student Loans with respect to future Quarterly Distribution Dates upon
terms similar to those described above, including the Servicer's waiver of its
option to purchase the Trust Estate in accordance with Section 6.1A of the
Administration Agreement with respect to each such future Quarterly Distribution
Date.

                                    ARTICLE V

                                    REMEDIES

          SECTION 5.1   EVENTS OF DEFAULT. "Event of Default," wherever used
herein, means any one of the following events (whatever the reason for such
Event of Default and whether it shall be voluntary or involuntary or be effected
by operation of law or pursuant to any judgment, decree or order of any court or
any order, rule or regulation of any administrative or governmental body):

          (i)    default in the payment of any interest on any Note when the
same becomes due and payable, and such default shall continue for a period of
five days; or

          (ii)   default in the payment of the principal of any Note when the
same becomes due and payable on the related Note Final Maturity Date; or

                                       21
<Page>

          (iii)  default in the observance or performance of any covenant or
agreement of the Issuer made in this Indenture (other than a covenant or
agreement, a default in the observance or performance of which is elsewhere in
this Section specifically dealt with), or any representation or warranty of the
Issuer made in this Indenture or in any certificate or other writing having been
incorrect in any material respect as of the time when made, such default or
breach having a material adverse effect on the holders of the Notes, and such
default or breach shall continue or not be cured, or the circumstance or
condition in respect of which such misrepresentation or warranty was incorrect
shall not have been eliminated or otherwise cured, for a period of 30 days after
there shall have been given, by registered or certified mail, to the Issuer by
the Indenture Trustee or to the Issuer and the Indenture Trustee by the
Noteholders of at least 25% of the Outstanding Amount of the Notes, a written
notice specifying such default or incorrect representation or warranty and
requiring it to be remedied and stating that such notice is a notice of Default
hereunder; or

          (iv)   the filing of a decree or order for relief by a court having
jurisdiction in the premises in respect of the Issuer or any substantial part of
the Indenture Trust Estate in an involuntary case under any applicable Federal
or state bankruptcy, insolvency or other similar law now or hereafter in effect,
or appointing a receiver, liquidator, assignee, custodian, trustee, sequestrator
or similar official of the Issuer or for any substantial part of the Indenture
Trust Estate, or ordering the winding-up or liquidation of the Issuer's affairs,
and such decree or order shall remain unstayed and in effect for a period of 60
consecutive days; or

          (v)    the commencement by the Issuer of a voluntary case under any
applicable Federal or state bankruptcy, insolvency or other similar law now or
hereafter in effect, or the consent by the Issuer to the entry of an order for
relief in an involuntary case under any such law, or the consent by the Issuer
to the appointment or taking possession by a receiver, liquidator, assignee,
custodian, trustee, sequestrator or similar official of the Issuer or for any
substantial part of the Indenture Trust Estate, or the making by the Issuer of
any general assignment for the benefit of creditors, or the failure by the
Issuer generally to pay its debts as such debts become due, or the taking of
action by the Issuer in furtherance of any of the foregoing.

          SECTION 5.2   ACCELERATION OF MATURITY; RESCISSION AND ANNULMENT. If
an Event of Default should occur and be continuing, then and in every such case
the Indenture Trustee or the Noteholders of Notes representing not less than a
majority of the Outstanding Amount of the Notes may declare all the Notes to be
immediately due and payable, by a notice in writing to the Issuer (and to the
Indenture Trustee if given by Noteholders), and upon any such declaration the
unpaid principal amount of such Notes, together with accrued and unpaid interest
thereon through the date of acceleration, shall become immediately due and
payable, subject, however, to Section 5.4 of this Indenture.

          At any time after such declaration of acceleration of maturity has
been made and before a judgment or decree for payment of the money due has been
obtained by the Indenture Trustee as hereinafter in this Article V provided, the
Noteholders of Notes representing a majority of the Outstanding Amount of the
Notes, by written notice to the Issuer and the Indenture Trustee, may rescind
and annul such declaration and its consequences if:

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<Page>

          (i)    the Issuer has paid or deposited with the Indenture Trustee a
sum sufficient to pay:

                 (a)    all payments of principal of and interest on all Notes
          and all other amounts that would then be due hereunder or upon such
          Notes if the Event of Default giving rise to such acceleration had not
          occurred; and

                 (b)    all sums paid or advanced by the Indenture  Trustee
          hereunder and the reasonable compensation, expenses, disbursements and
          advances of the Indenture Trustee and its agents and counsel; and

          (ii)   all Events of Default, other than the nonpayment of the
principal of the Notes that has become due solely by such acceleration, have
been cured or waived as provided in Section 5.12.

          No such rescission shall affect any subsequent default or impair any
right consequent thereto.

          SECTION 5.3   COLLECTION OF INDEBTEDNESS AND SUITS FOR ENFORCEMENT BY
INDENTURE TRUSTEE. The Issuer covenants that if (i) default is made in the
payment of any interest on any Note when the same becomes due and payable, and
such default continues for a period of five days, or (ii) default is made in the
payment of the principal of any Note when the same becomes due and payable at
the related Note Final Maturity Date, the Issuer shall, upon demand of the
Indenture Trustee, pay to it, for the benefit of the Noteholders, the whole
amount then due and payable on such Notes for principal and interest, with
interest upon the overdue principal, and, to the extent payment at such rate of
interest shall be legally enforceable, upon overdue installments of interest, at
the rate specified in Section 2.7 and in addition thereto such further amount as
shall be sufficient to cover the costs and expenses of collection, including the
reasonable compensation, expenses, disbursements and advances of the Indenture
Trustee and its agents and counsel.

     (a)  In case the Issuer shall fail forthwith to pay such amounts upon such
demand, the Indenture Trustee, in its own name and as trustee of an express
trust, may institute a Proceeding for the collection of the sums so due and
unpaid, and may prosecute such Proceeding to judgment or final decree, and may
enforce the same against the Issuer or other obligor upon such Notes and collect
in the manner provided by law out of the property of the Issuer or other obligor
upon such Notes, wherever situated, the moneys adjudged or decreed to be
payable.

     (b)  If an Event of Default occurs and is continuing, the Indenture Trustee
may, as more particularly provided in Section 5.4, in its discretion, proceed to
protect and enforce its rights and the rights of the Noteholders, by such
appropriate Proceedings as the Indenture Trustee shall deem most effective to
protect and enforce any such rights, whether for the specific enforcement of any
covenant or agreement in this Indenture or in aid of the exercise of any power
granted herein, or to enforce any other proper remedy or legal or equitable
right vested in the Indenture Trustee by this Indenture or by law.

     (c)  In case there shall be pending, relative to the Issuer or any other
obligor upon the Notes or any Person having or claiming an ownership interest in
the Indenture Trust Estate,

                                       23
<Page>

Proceedings under Title 11 of the United States Code or any other applicable
Federal or state bankruptcy, insolvency or other similar law, or in case a
receiver, assignee or trustee in bankruptcy or reorganization, liquidator,
sequestrator or similar official shall have been appointed for or taken
possession of the Issuer or its property or such other obligor or Person, or in
case of any other, comparable judicial Proceedings relative to the Issuer or
other obligor upon the Notes, or to the creditors or property of the Issuer or
such other obligor, the Indenture Trustee, irrespective of whether the principal
of any Notes shall then be due and payable, as therein expressed or by
declaration or otherwise and irrespective of whether the Indenture Trustee shall
have made any demand pursuant to the provisions of this Section, shall be
entitled and empowered, by intervention in such proceedings or otherwise:

          (i)    to file and prove a claim or claims for the whole amount of
principal and interest owing and unpaid in respect of the Notes and to file such
other papers or documents as may be necessary or advisable in order to have the
claims of the Indenture Trustee (including any claim for reasonable compensation
to the Indenture Trustee and each predecessor Indenture Trustee, and their
respective agents, attorneys and counsel, and for reimbursement of all expenses
and liabilities incurred, and all advances made, by the Indenture Trustee and
each predecessor Indenture Trustee, except as a result of negligence or bad
faith) and of the Noteholders allowed in such Proceedings;

          (ii)   unless prohibited by applicable law and regulations, to vote on
behalf of the Noteholders in any election of a trustee, a standby trustee or
Person performing similar functions in any such Proceedings;

          (iii)  to collect and receive any moneys or other property payable or
deliverable on any such claims and to distribute all amounts received with
respect to the claims of the Noteholders and of the Indenture Trustee on their
behalf; and

          (iv)   to file such proofs of claim and other papers or documents as
may be necessary or advisable in order to have the claims of the Indenture
Trustee or the Noteholders allowed in any judicial proceedings relative to the
Issuer, its creditors and its property;

          and any trustee, receiver, liquidator, custodian or other similar
official in any such Proceeding is hereby authorized by each of such Noteholders
to make payments to the Indenture Trustee, and, in the event that the Indenture
Trustee shall consent to the making of payments directly to such Noteholders, to
pay to the Indenture Trustee such amounts as shall be sufficient to cover
reasonable compensation to the Indenture Trustee, each predecessor Indenture
Trustee and their respective agents, attorneys and counsel, and all other
expenses and liabilities incurred, and all advances made, by the Indenture
Trustee and each predecessor Indenture Trustee except as a result of negligence
or bad faith.

     (d)  Nothing herein contained shall be deemed to authorize the Indenture
Trustee to authorize or consent to or vote for or accept or adopt on behalf of
any Noteholder any plan of reorganization, arrangement, adjustment or
composition affecting the Notes or the rights of any Noteholder thereof or to
authorize the Indenture Trustee to vote in respect of the claim of any
Noteholder in any such proceeding except, as aforesaid, to vote for the election
of a trustee in bankruptcy or similar Person.

                                       24
<Page>

     (e)  All rights of action and of asserting claims under this Indenture, or
under any of the Notes, may be enforced by the Indenture Trustee without the
possession of any of the Notes or the production thereof in any trial or other
Proceedings relative thereto, and any such action or Proceedings instituted by
the Indenture Trustee shall be brought in its own name as trustee of an express
trust, and any recovery of judgment, subject to the payment of the expenses,
disbursements and compensation of the Indenture Trustee, each predecessor
Indenture Trustee and their respective agents and attorneys, shall be for the
ratable benefit of the Noteholders.

     (f)  In any Proceedings brought by the Indenture Trustee (and also any
Proceedings involving the interpretation of any provision of this Indenture to
which the Indenture Trustee shall be a party), the Indenture Trustee shall be
held to represent all the Noteholders, and it shall not be necessary to make any
Noteholder a party to any such Proceedings.

          SECTION 5.4 REMEDIES; PRIORITIES. If an Event of Default shall have
occurred and be continuing, the Indenture Trustee may do one or more of the
following (subject to Section 5.5):

     (a)  (i)    institute Proceedings in its own name and as trustee of an
express trust for the collection of all amounts then payable on the Notes or
under this Indenture with respect thereto, whether by declaration or otherwise,
enforce any judgment obtained, and collect from the Issuer and any other obligor
upon such Notes moneys adjudged due;

          (ii)   institute Proceedings from time to time for the complete or
partial foreclosure of this Indenture, with respect to the Indenture Trust
Estate;

          (iii)  exercise any remedies of a secured party under the UCC with
respect to the Trust Estate and take any other appropriate action to protect and
enforce the rights and remedies of the Indenture Trustee and the Noteholders;

          (iv)   sell the Indenture Trust Estate or any portion thereof or
rights or interest therein, at one or more public or private sales called and
conducted in any manner permitted by law; and/or

          (v)    elect to have the Eligible Lender Trustee maintain ownership of
the Trust Student Loans and continue to apply collections with respect to the
Trust Student Loans as if there had been no declaration of acceleration.

PROVIDED, HOWEVER, that the Indenture Trustee may not sell or otherwise
liquidate the Indenture Trust Estate following an Event of Default, other than
an Event of Default described in Section 5.1(i) or (ii) with respect to the
Class A Notes, unless (A) the Noteholders of 100% of the Outstanding Amount of
the Class A Notes consent thereto, (B) the proceeds of such sale or liquidation
distributable to the Class A Noteholders are sufficient to discharge in full all
amounts then due and unpaid upon such Class A Notes for principal and interest
or (C) the Indenture Trustee determines that the Indenture Trust Estate will not
continue to provide sufficient funds for the payment of principal of and
interest on the Class A Notes as would have become due if the Class A Notes had
not been declared due and payable, and the Indenture Trustee obtains the consent
of Noteholders of 66-2/3% of the Outstanding Amount of the Class A Notes;
PROVIDED, FURTHER, that the Indenture Trustee may not sell or otherwise
liquidate the Indenture Trust Estate

                                       25
<Page>

following an Event of Default, other than an Event of Default described in
Section 5.1(i) or (ii) with respect to the Class A Notes, unless (D) the
proceeds of such sale or liquidation distributable to the Class B Noteholders
plus the proceeds of the sale or liquidation of the Trust Estate distributable
to the Class B Noteholders are sufficient to pay to the Class B Noteholders the
outstanding principal plus accrued and unpaid interest thereon or (E) after
receipt of notice from the Eligible Lender Trustee that the proceeds of such
sale or liquidation distributable to the Class B Noteholders plus the proceeds
of the sale or liquidation of the Trust Estate distributable to the Class B
Noteholders would not be sufficient to pay to the Class B Noteholders the
outstanding principal plus accrued and unpaid interest thereon, the Class B
Noteholders of at least a majority of the principal amount of the Class B Notes
consent thereto. In determining such sufficiency or insufficiency with respect
to clauses (B), (C), (D) and (E), the Indenture Trustee may, but need not,
obtain and rely upon an opinion of an Independent investment banking or
accounting firm of national reputation as to the feasibility of such proposed
action and as to the sufficiency of the Indenture Trust Estate and/or Trust
Estate, as applicable, for such purpose.

     (b)  Notwithstanding the provisions of Section 8.2, following the
occurrence and during the continuation of an Event of Default specified in
Section 5.1(a), 5.01(b), 5.01(d) or 5.01(e) which has resulted in an
acceleration of the Notes, if the Indenture Trustee collects any money or
property, it shall pay out the money or property (and other amounts including
amounts held on deposit in the Trust Account) held as Collateral for the benefit
of the Noteholders, net of liquidation costs associated with the sale of the
assets of the Trust, in the following order:

          FIRST: to the Indenture Trustee for amounts due under Section 6.7;

          SECOND: to the Servicer for due and unpaid Primary Servicing Fees;

          THIRD: to the Administrator, any due and unpaid Administration Fees;

          FOURTH: to the Auction Agent and the Broker-Dealers (or to the Auction
Agent for remittance to the Broker-Dealers), pro rata, any due and unpaid
Auction Agent Fees or Broker-Dealer Fees;

          FIFTH: pro rata, based on the aggregate principal balance (and, if the
Swap Agreement is not in effect, the then current U.S. Dollar Equivalent of the
aggregate principal balance) of the Notes (other than the Class A-5 Notes so
long as the Swap Agreement is in effect) and the amount of the Swap Termination
Payments and Swap Interest Payments due and payable by the Issuer to the Swap
Counterparty under this clause FIFTH;

                 A:     to the Class A Noteholders (other than the Class A-5
                 Noteholders so long as the Swap Agreement is in effect), for
                 amounts due and unpaid on the Class A Notes for interest at the
                 applicable Note Rate, ratably, without preference or priority
                 of any kind, according to the amounts due and payable on the
                 Class A Notes for such interest; and

                 B:     to the Swap Counterparty, the amount of any Swap
                 Termination Payments due to the Swap Counterparty due to a Swap
                 Termination Event resulting from a payment default by the
                 Issuer or the insolvency of the

                                       26
<Page>

                 Issuer; PROVIDED, that if any amounts allocable to the Class A
                 Notes are not needed to pay Class A Noteholders' Interest
                 Distribution Amount as of such Distribution Date, such amounts
                 will be applied to pay the portion, if any, of any Swap
                 Termination Payments remaining unpaid; and

                 C:     to the Swap Counterparty, the amount of any Swap
                 Interest Payments due and payable by the Issuer;

          SIXTH: A: So long as the Swap Agreement is in effect, pro rata to the
Class A Noteholders (other than the Class A-5 Noteholders), ratably, an amount
sufficient to reduce the respective principal balance of the Class A Notes to
zero and to the Swap Counterparty an amount (converted to U.S. Dollars at the
Initial Dollar/Euro Conversion Rate) sufficient to reduce the principal balance
of the Class A-5 Notes to zero; and

          B: if the Swap Agreement is not in effect pro rata (1), to the Class A
Noteholders, ratably, an amount sufficient to reduce the respective principal
balances of the Class A Notes to zero and (2) to the Swap Counterparty, the
amount (to the extent not paid under clause FIFTH above) of any Swap Termination
Payment due to the Swap Counterparty due to a Swap Termination Event resulting
from a "Cross Default" under 5(a)(vi) of the Swap Agreement.

          SEVENTH: to the Class B Noteholders for amounts due and unpaid on the
Class B Notes for interest at the Note Rate, ratably, without preference or
priority of any kind, according to the amounts due and payable on the Class B
Notes for such interest;

          EIGHTH: to Class B Noteholders, an amount sufficient to reduce the
principal balance of the Class B Notes to zero;

          NINTH: to the Servicer, for any unpaid Carryover Servicing Fees;

          TENTH: to the Class A Auction Rate Noteholders, pro rata, any Class A
Carry-over Amounts;

          ELEVENTH: to the Class B Noteholders, any Class B Carry-over Amounts:

          TWELFTH: to the Swap Counterparty, the amount of any Swap Termination
Payment due to the Swap Counterparty by the Issuer and not payable in clauses
FIFTH and SIXTH (B) above; and

          THIRTEENTH: to the Excess Distribution Certificateholder, any
remaining funds.

          In addition, the Indenture Trustee shall pay all amounts on deposit in
the Euro Account to the Class A-5 Noteholders. Amounts paid by the Trust to the
Class A-5 Notes after the Swap Agreement has terminated shall be paid in Euros
at the same exchange rate as the Initial Dollar/Euro Conversion Rate.

          All principal payments to be made to the Auction Rate Notes shall be
made in lots of $50,000 chosen by random lot.

                                       27
<Page>

          The Indenture Trustee may fix a record date and payment date for any
payment to Noteholders pursuant to this Section. At least 15 days before such
record date, the Indenture Trustee shall mail to each Noteholder and the Issuer
a notice that states the record date, the payment date and the amount to be
paid.

          SECTION 5.5   OPTIONAL PRESERVATION OF THE TRUST STUDENT LOANS. If the
Notes have been declared to be due and payable under Section 5.2 following an
Event of Default and such declaration and its consequences have not been
rescinded and annulled, the Indenture Trustee may, but need not, elect to
maintain possession of the Indenture Trust Estate. It is the desire of the
parties hereto and the Noteholders that there be at all times sufficient funds
for the payment of principal of and interest on the Notes, and the Indenture
Trustee shall take such desire into account when determining whether or not to
maintain possession of the Indenture Trust Estate. In determining whether to
maintain possession of the Indenture Trust Estate, the Indenture Trustee may,
but need not, obtain and rely upon an opinion of an Independent investment
banking or accounting firm of national reputation as to the feasibility of such
proposed action and as to the sufficiency of the Indenture Trust Estate for such
purpose.

          SECTION 5.6   LIMITATION OF SUITS. No Noteholder shall have any right
to institute any Proceeding, judicial or otherwise, with respect to this
Indenture, or for the appointment of a receiver or trustee, or for any other
remedy hereunder, unless:

          (i)    such Noteholder has previously given written notice to the
Indenture Trustee of a continuing Event of Default;

          (ii)   the Noteholders of not less than 25% of the Outstanding Amount
of the Notes have made written request to the Indenture Trustee to institute
such Proceeding in respect of such Event of Default in its own name as Indenture
Trustee hereunder;

          (iii)  such Noteholder or Noteholders have offered to the Indenture
Trustee reasonable indemnity against the costs, expenses and liabilities to be
incurred in complying with such request;

          (iv)   the Indenture Trustee for 60 days after its receipt of such
notice, request and offer of indemnity has failed to institute such Proceeding;
and

          (v)    no direction inconsistent with such written request has been
given to the Indenture Trustee during such 60-day period by the Noteholders of a
majority of the Outstanding Amount of the Notes;

          it being understood and intended that no one or more Noteholders shall
have any right in any manner whatever by virtue of, or by availing of, any
provision of this indenture to affect, disturb or prejudice the rights of any
other Noteholders or to obtain or to seek to obtain priority or preference over
any other Noteholders or to enforce any right under this Indenture, except in
the manner herein provided.

          In the event the Indenture Trustee shall receive conflicting or
inconsistent requests and indemnity from two or more groups of Noteholders, each
representing less than a majority of the Outstanding Amount of the Notes, the
Indenture Trustee in its sole discretion

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may determine what action, if any, shall be taken, notwithstanding any other
provisions of this Indenture.

          SECTION 5.7   UNCONDITIONAL RIGHTS OF NOTEHOLDERS TO RECEIVE PRINCIPAL
AND INTEREST. Notwithstanding any other provisions in this Indenture, any
Noteholder shall have the right, which is absolute and unconditional, to receive
payment of the principal of and interest on such Note on or after the respective
due dates thereof expressed in such Note or in this Indenture (or, in the case
of redemption, on or after the Redemption Date) and to institute suit for the
enforcement of any such payment, and such right shall not be impaired without
the consent of such Noteholder.

          SECTION 5.8   RESTORATION OF RIGHTS AND REMEDIES. If the Indenture
Trustee or any Noteholder has instituted any Proceeding to enforce any right or
remedy under this Indenture and such Proceeding has been discontinued or
abandoned for any reason or has been determined adversely to the Indenture
Trustee or to such Noteholder, then and in every such case the Issuer, the
Indenture Trustee and the Noteholders shall, subject to any determination in
such Proceeding, be restored severally and respectively to their former
positions hereunder, and thereafter all rights and remedies of the Indenture
Trustee and the Noteholders shall continue as though no such Proceeding had been
instituted.

          SECTION 5.9   RIGHTS AND REMEDIES CUMULATIVE. No right or remedy
herein conferred upon or reserved to the Indenture Trustee or to the Noteholders
is intended to be exclusive of any other right or remedy, and every right and
remedy shall, to the extent permitted by law, be cumulative and in addition to
every other right and remedy given hereunder or now or hereafter existing at law
or in equity or otherwise. The assertion or employment of any right or remedy
hereunder, or otherwise, shall not prevent the concurrent assertion or
employment of any other appropriate right or remedy.

          SECTION 5.10  DELAY OR OMISSION NOT A WAIVER. No delay or omission of
the Indenture Trustee or any Noteholder to exercise any right or remedy accruing
upon any Default shall impair any such right or remedy or constitute a waiver of
any such Default or an acquiescence therein. Every right and remedy given by
this Article V or by law to the Indenture Trustee or to the Noteholders may be
exercised from time to time, and as often as may be deemed expedient, by the
Indenture Trustee or by the Noteholders, as the case may be.

          SECTION 5.11  CONTROL BY NOTEHOLDERS. The Noteholders of a majority of
the Outstanding Amount of the Notes shall have the right to direct the time,
method and place of conducting any Proceeding for any remedy available to the
Indenture Trustee with respect to the Notes or exercising any trust or power
conferred on the Indenture Trustee; provided that

          (i)    such direction shall not be in conflict with any rule of law or
with this Indenture;

          (ii)   subject to the express terms of Section 5.4, any direction to
the Indenture Trustee to sell or liquidate the Indenture Trust Estate shall be
by the Noteholders of not less than 100% of the Outstanding Amount of the Notes;

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          (iii)  if the conditions set forth in Section 5.5 have been satisfied
and the Indenture Trustee elects to retain the Indenture Trust Estate pursuant
to such Section, then any direction to the Indenture Trustee by Noteholders of
less than 100% of the Outstanding Amount of the Notes to sell or liquidate the
Indenture Trust Estate shall be of no force and effect; and

          (iv)   the Indenture Trustee may take any other action deemed proper
by the Indenture Trustee that is not inconsistent with such direction;

PROVIDED, HOWEVER, that, subject to Section 6.1, the Indenture Trustee need not
take any action that it determines might involve it in liability or might
materially adversely affect the rights of any Noteholders not consenting to such
action.

          SECTION 5.12  WAIVER OF PAST DEFAULTS. Prior to the time a judgment or
decree for payment of money due has been obtained as described in Section 5.2,
the Noteholders of not less than a majority of the Outstanding Amount of the
Notes may waive any past Default and its consequences except a Default (a) in
payment when due of principal of or interest on any of the Notes or (b) in
respect of a covenant or provision hereof which cannot be modified or amended
without the consent of each Noteholder. In the case of any such waiver, the
Issuer, the Indenture Trustee and the Noteholders shall be restored to their
former positions and rights hereunder, respectively; but no such waiver shall
extend to any subsequent or other Default or impair any right consequent
thereto.

          Upon any such waiver, such Default shall cease to exist and be deemed
to have been cured and not to have occurred for every purpose of this Indenture;
but no such waiver shall extend to any subsequent or other Default or impair any
right consequent thereto.

          SECTION 5.13  UNDERTAKING FOR COSTS. All parties to this Indenture
agree, and each Noteholder by such Noteholder's acceptance of any Note shall be
deemed to have agreed, that any court may in its discretion require, in any suit
for the enforcement of any right or remedy under this Indenture, or in any suit
against the Indenture Trustee for any action taken, suffered or omitted by it as
Indenture Trustee, the filing by any party litigant in such suit of an
undertaking to pay the costs of such suit, and that such court may in its
discretion assess reasonable costs, including reasonable attorneys' fees,
against any party litigant in such suit, having due regard to the merits and
good faith of the claims or defenses made by such party litigant; but the
provisions of this Section shall not apply to (a) any suit instituted by the
Indenture Trustee, (b) any suit instituted by any Noteholder, or group of
Noteholders, in each case holding in the aggregate more than 10% of the
Outstanding Amount of the Notes or (c) any suit Instituted by any Noteholder for
the enforcement of the payment of principal of or interest on any Note on or
after the respective due dates expressed in such Note and in this Indenture (or,
in the case of redemption, on or after the Redemption Date).

          SECTION 5.14  WAIVER OF STAY OR EXTENSION LAWS. The Issuer covenants
(to the extent that it may lawfully do so) that it will not at any time insist
upon, or plead or in any manner whatsoever, claim or take the benefit or
advantage of, any stay or extension law wherever enacted, now or at any time
hereafter in force, that may affect the covenants or the performance of this
Indenture; and the Issuer (to the extent that it may lawfully do so) hereby
expressly waives all benefit or advantage of any such law, and covenants that it
will not hinder,

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<Page>

delay or impede the execution of any power herein granted to the Indenture
Trustee, but will suffer and permit the execution of every such power as though
no such law had been enacted.

          SECTION 5.15  ACTION ON NOTES. The Indenture Trustee's right to seek
and recover judgment on the Notes or under this Indenture shall not be affected
by the seeking, obtaining or application of any other relief under or with
respect to this Indenture. Neither the lien of this Indenture nor any rights or
remedies of the Indenture Trustee or the Noteholders shall be impaired by the
recovery of any judgment by the Indenture Trustee against the Issuer or by the
levy of any execution under such judgment upon any portion of the Indenture
Trust Estate or upon any of the assets of the Issuer. Any money or property
collected by the Indenture Trustee shall be applied in accordance with Section
5.4(b).

          SECTION 5.16  PERFORMANCE AND ENFORCEMENT OF CERTAIN OBLIGATIONS.

     (a)  Promptly following a request from the Indenture Trustee to do so and
at the Administrator's expense, the Issuer shall take all such lawful action as
the Indenture Trustee may request to compel or secure the performance and
observance by the Depositor, Sallie Mae, the Administrator and the Servicer, as
applicable, of each of their obligations to the Issuer, whether directly or by
assignment, under or in connection with the Sale Agreement, the Purchase
Agreement, the Administration Agreement and the Servicing Agreement,
respectively, in accordance with the terms thereof, and to exercise any and all
rights, remedies, powers and privileges lawfully available to the Issuer under
or in connection with the Sale Agreement, the Purchase Agreement, the
Administration Agreement and the Servicing Agreement, as the case may be, to the
extent and in the manner directed by the Indenture Trustee, including the
transmission of notices of default on the part of the Depositor, Sallie Mae, the
Administrator or the Servicer thereunder and the institution of legal or
administrative actions or proceedings to compel or secure performance by the
Depositor, Sallie Mae, the Administrator or the Servicer of each of their
obligations under the Sale Agreement, the Purchase Agreement, the Administration
Agreement and the Servicing Agreement, respectively.

     (b)  If an Event of Default has occurred and is continuing, the Indenture
Trustee may, and at the written direction of the Noteholders of 66-2/3% of the
Outstanding Amount of the Notes shall, exercise all rights, remedies, powers,
privileges and claims of the Issuer against the Depositor, Sallie Mae, the
Administrator or the Servicer under or in connection with the Sale Agreement,
the Purchase Agreement, the Administration Agreement and the Servicing
Agreement, respectively, including the right or power to take any action to
compel or secure performance or observance by the Depositor, Sallie Mae, the
Administrator or the Servicer of each of their obligations to the Issuer
thereunder, whether directly or by assignment, and to give any consent, request,
notice, direction, approval, extension or waiver under the Sale Agreement, the
Purchase Agreement, the Administration Agreement and the Servicing Agreement,
respectively, and any right of the Issuer to take such action shall be
suspended.

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                                   ARTICLE VI

                              THE INDENTURE TRUSTEE

          SECTION 6.1   DUTIES OF INDENTURE TRUSTEE. (a) If an Event of Default
has occurred and is continuing, the Indenture Trustee shall exercise the rights
and powers vested in it by this Indenture and use the same degree of care and
skill in their exercise as a prudent person would exercise or use under the
circumstances in the conduct such person's own affairs.

     (b)  Except during the continuance of an Event of Default:

          (i)    the Indenture Trustee undertakes to perform such duties and
only such duties as are specifically set forth in this Indenture and no implied
covenants or obligations shall be read into this Indenture against the Indenture
Trustee; and

          (ii)   in the absence of bad faith on its part, the Indenture Trustee
may conclusively rely, as to the truth of the statements and the correctness of
the opinions expressed therein, upon certificates or opinions furnished to the
Indenture Trustee and conforming to the requirements of this Indenture;
PROVIDED, HOWEVER, that the Indenture Trustee shall examine the certificates and
opinions to determine whether or not they conform to the requirements of this
Indenture.

     (c)  The Indenture Trustee may not be relieved from liability for its own
negligent action, its own negligent failure to act or its own willful
misconduct, except that:

          (i)    this paragraph does not limit the effect of paragraph (b) of
this Section;

          (ii)   the Indenture Trustee shall not be liable for any error of
judgment made in good faith by a Responsible Officer unless it is proved that
the Indenture Trustee was negligent in ascertaining the pertinent facts; and

          (iii)  the Indenture Trustee shall not be liable with respect to any
action it takes or omits to take in good faith in accordance with a direction
received by it pursuant to Section 5.11.

     (d)  The Indenture Trustee shall not be liable for interest on any money
received by it except as the Indenture Trustee may agree in writing with the
Issuer.

     (e)  Money held in trust by the Indenture Trustee need not be segregated
from other funds except to the extent required by law or the terms of this
Indenture or the other Basic Documents.

     (f)  No provision of this Indenture shall require the Indenture Trustee to
expend or risk its own funds or otherwise incur financial liability in the
performance of any of its duties hereunder or in the exercise of any of its
rights or powers, if it shall have reasonable grounds to believe that repayments
of such funds or adequate indemnity satisfactory to it against any loss,
liability or expense is not reasonably assured to it.

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     (g)  Except as expressly provided in the Basic Documents, the Indenture
Trustee shall have no obligation to administer, service or collect the Trust
Student Loans or to maintain, monitor or otherwise supervise the administration,
servicing or collection of the Trust Student Loans.

     (h)  In the event that the Indenture Trustee is the Paying Agent or the
Note Registrar, the rights and protections afforded to the Indenture Trustee
pursuant to this Indenture shall also be afforded to the Indenture Trustee in
its capacity as Paying Agent or Note Registrar.

     (i)  Every provision of this Indenture relating to the conduct or affecting
the liability of or affording protection to the Indenture Trustee shall be
subject to the provisions of this Section and to the provisions of the TIA.

          SECTION 6.2   RIGHTS OF INDENTURE TRUSTEE. (a) The Indenture Trustee
may rely on any document believed by it to be genuine and to have been signed or
presented by the proper Person. The Indenture Trustee need not investigate any
fact or matter stated in such document.

     (b)  Before the Indenture Trustee acts or refrains from acting, it may
require and shall be entitled to receive an Officers' Certificate of the Issuer
and/or an Opinion of Counsel. The Indenture Trustee shall not be liable for any
action it takes or omits to take in good faith in reliance on such Officers'
Certificate or Opinion of Counsel.

     (c)  The Indenture Trustee may execute any of the trusts or powers
hereunder or perform any duties hereunder either directly or by or through
agents or attorneys or a custodian or nominee, and the Indenture Trustee shall
not be responsible for any misconduct or negligence on the part of, or for the
supervision of, any such agent, attorney, custodian or nominee appointed with
due care by it hereunder.

     (d)  The Indenture Trustee shall not be liable for any action it takes or
omits to take in good faith which it believes to be authorized or within its
rights or powers; PROVIDED, HOWEVER, that the Indenture Trustee's conduct does
not constitute willful misconduct, negligence or bad faith.

     (e)  The Indenture Trustee may consult with counsel, and the advice or
opinion of counsel with respect to legal matters relating to this Indenture and
the Notes shall be full and complete authorization and protection from liability
in respect to any action taken, omitted or suffered by it hereunder in good
faith and in accordance with the advice or opinion of such counsel.

          SECTION 6.3   INDIVIDUAL RIGHTS OF INDENTURE TRUSTEE. The Indenture
Trustee in its individual or any other capacity may become the owner or pledgee
of Notes and may otherwise deal with the Issuer or its Affiliates with the same
rights it would have if it were not Indenture Trustee. Any Paying Agent, Note
Registrar, co-registrar or co-paying agent may do the same with like rights.
However, the Indenture Trustee must comply with Sections 6.11 and 6.12.

          SECTION 6.4   INDENTURE TRUSTEE'S DISCLAIMER. The Indenture Trustee
shall not be responsible for and makes no representation as to the validity or
adequacy of this Indenture or

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<Page>

the Notes, it shall not be accountable for the Issuer's use of the proceeds from
the Notes, and it shall not be responsible for any statement of the Issuer in
the Indenture or in any document issued in connection with the sale of the Notes
or in the Notes other than the Indenture Trustee's certificate of
authentication.

          SECTION 6.5   NOTICE OF DEFAULTS. (a) If a Default occurs and is
continuing and if it is either actually known or written notice of the existence
thereof has been delivered to a Responsible Officer of the Indenture Trustee,
the Indenture Trustee shall mail notice of the Default to each Noteholder within
90 days and to each Rating Agency as soon as practicable within 30 days after it
occurs. Except in the case of a Default in payment of principal of or interest
on any Note (including payments pursuant to the mandatory redemption provisions
of such Note), the Indenture Trustee may withhold the notice if and so long as a
committee of its Responsible Officers in good faith determines that withholding
the notice is in the interests of Noteholders. Except as provided in the first
sentence of this Section 6.5(a), in no event shall the Indenture Trustee be
deemed to have knowledge of a Default or an Event of Default.

          SECTION 6.6   REPORTS BY INDENTURE TRUSTEE TO NOTEHOLDERS. The
Indenture Trustee shall deliver to each Noteholder (and to each Person who was a
Noteholder at any time during the applicable calendar year) such information as
may be required to enable such holder to prepare its Federal and state income
tax returns. Within 60 days after each December 31 beginning with the December
31 following the date of this Indenture, the Indenture Trustee shall mail to
each Noteholder a brief report as of such December 31 that complies with TIA
Section 313(a) if required by said section. The Indenture Trustee shall also
comply with TIA Section 313(b). A copy of each such report required pursuant to
TIA Section 313(a) or (b) shall, at the time of such transaction to Noteholders,
be filed by the Indenture Trustee with the Commission and with each securities
exchange, if any, upon which the Notes are listed, provided that the Issuer has
previously notified the Indenture Trustee of such listing.

          SECTION 6.7   COMPENSATION AND INDEMNITY. The Issuer shall cause the
Depositor to pay to the Indenture Trustee reasonable compensation for its
services in accordance with a separate agreement between the Depositor and the
Indenture Trustee and shall cause the Depositor to reimburse the Indenture
Trustee for all reasonable out-of-pocket expenses incurred or made by it as
provided in such separate agreement. The Indenture Trustee's compensation shall
not be limited by any law on compensation of a trustee of an express trust. The
Issuer shall cause the Administrator to indemnify the Indenture Trustee and its
directors, officers, employees and agents against any and all loss, liability or
expense (including attorneys' fees) incurred by it in connection with the
administration of this trust and the performance of its duties hereunder and
under the other Basic Documents. The Indenture Trustee shall notify the Issuer
and the Administrator promptly of any claim for which it may seek indemnity.
Failure by the Indenture Trustee to so notify the Issuer and the Administrator
shall not relieve the Issuer or the Administrator of its obligations hereunder
and under the other Basic Documents. The Issuer shall cause the Administrator to
defend the claim and the Administrator shall not be liable for the legal fees
and expenses of the Indenture Trustee after it has assumed such defense;
PROVIDED, HOWEVER, that, in the event that there may be a conflict between the
positions of the Indenture Trustee and the Administrator in conducting the
defense of such claim, the Indenture Trustee shall be entitled to separate
counsel acceptable to it in its sole discretion the reasonable fees and expenses
of which shall be paid by the Administrator on behalf of the Issuer. Neither the
Issuer

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<Page>

nor the Administrator need reimburse any expense or indemnify against any loss,
liability or expense incurred by the Indenture Trustee through the Indenture
Trustee's own willful misconduct, negligence or bad faith.

          The Issuer's payment obligations to the Indenture Trustee pursuant to
this Section shall survive the discharge of this Indenture. When the Indenture
Trustee incurs expenses after the occurrence of a Default specified in Section
5.1(iv) or (v) with respect to the Issuer, the expenses are intended to
constitute expenses of administration under Title 11 of the United States Code
or any other applicable Federal or state bankruptcy, insolvency or similar law.

          SECTION 6.8   REPLACEMENT OF INDENTURE TRUSTEE. No resignation or
removal of the Indenture Trustee and no appointment of a successor Indenture
Trustee shall become effective until the acceptance of appointment by the
successor Indenture Trustee pursuant to this Section 6.8. The Indenture Trustee
may resign at any time by so notifying the Issuer. The Noteholders of a majority
in Outstanding Amount of the Notes may remove the Indenture Trustee by so
notifying the Indenture Trustee and may appoint a successor Indenture Trustee.
The Issuer shall remove the Indenture Trustee if:

          (i)    the Indenture Trustee fails to comply with Section 6.11;

          (ii)   an Insolvency Event occurs with respect to the Indenture
Trustee;

          (iii)  a receiver or other public officer takes charge of the
Indenture Trustee or its property; or

          (iv)   the Indenture Trustee otherwise becomes incapable of acting.

          If the Indenture Trustee resigns or is removed or if a vacancy exists
in the office of Indenture Trustee for any reason (the Indenture Trustee in such
event being referred to herein as the retiring Indenture Trustee), the Issuer
shall promptly appoint a successor Indenture Trustee.

          A successor Indenture Trustee shall deliver a written acceptance of
its appointment to the retiring Indenture Trustee and to the Issuer. Thereupon
the resignation or removal of the retiring Indenture Trustee shall become
effective, and the successor Indenture Trustee shall have all the rights, powers
and duties of the Indenture Trustee under this Indenture. The successor
Indenture Trustee shall mail a notice of its succession to Noteholders. The
retiring Indenture Trustee shall promptly transfer all property held by it as
Indenture Trustee to the successor Indenture Trustee.

          If a successor Indenture Trustee does not take office within 60 days
after the retiring Indenture Trustee resigns or is removed, the retiring
Indenture Trustee, the Issuer or the Noteholders of a majority in Outstanding
Amount of the Notes may petition any court of competent jurisdiction for the
appointment of a successor Indenture Trustee. The successor Indenture Trustee
shall give notice of its appointment as successor Indenture Trustee to the
Rating Agencies.

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          If the Indenture Trustee fails to comply with Section 6.11, any
Noteholder may petition any court of competent jurisdiction for the removal of
the Indenture Trustee and the appointment of a successor Indenture Trustee.

          Notwithstanding the replacement of the Indenture Trustee pursuant to
this Section, the Issuer's and the Administrator's obligations under Section 6.7
shall continue for the benefit of the retiring Indenture Trustee.

          SECTION 6.9   SUCCESSOR INDENTURE TRUSTEE BY MERGER. If the Indenture
Trustee consolidates with, merges or converts into, or transfers all or
substantially all its corporate trust business or assets to, another corporation
or banking association, the resulting, surviving or transferee corporation
without any further act shall be the successor Indenture Trustee, provided that
such corporation or banking association shall be otherwise qualified and
eligible under Section 6.11. The Indenture Trustee shall provide the Rating
Agencies prior written notice of any such transaction.

          In case at the time such successor or successors by merger, conversion
or consolidation to the Indenture Trustee shall succeed to the trusts created by
this Indenture any of the Notes shall have been authenticated but not delivered,
any such successor to the Indenture Trustee may adopt the certificate of
authentication of any predecessor trustee, and deliver such Notes so
authenticated; and in case at that time any of the Notes shall not have been
authenticated, any successor to the Indenture Trustee may authenticate such
Notes either in the name of any predecessor hereunder or in the name of the
successor to the Indenture Trustee; and in all such cases such certificates
shall have the full force which it is anywhere in the Notes or in this Indenture
provided that the certificate of the Indenture Trustee shall have.

          SECTION 6.10  APPOINTMENT OF CO-TRUSTEE OR SEPARATE TRUSTEE.

     (a)  Notwithstanding any other provisions of this Indenture, at any time,
for the purpose of meeting any legal requirement of any jurisdiction in which
any part of the Indenture Trust Estate may at the time be located, the Indenture
Trustee shall have the power and may execute and deliver all instruments to
appoint one or more Persons to act as a co-trustee or co-trustees, or separate
trustee or separate trustees, of all or any part of the Indenture Trust Estate,
and to vest in such Person or Persons, in such capacity and for the benefit of
the Noteholders, such title to the Indenture Trust Estate, or any part hereof,
and, subject to the other provisions of this Section, such powers, duties,
obligations, rights and trusts as the Indenture Trustee may consider necessary
or desirable. No such appointment shall relieve the Indenture Trustee of its
obligations hereunder. No co-trustee or separate trustee hereunder shall be
required to meet the terms of eligibility as a successor trustee under Section
6.11 and no notice to Noteholders of the appointment of any co-trustee or
separate trustee shall be required under Section 6.8 hereof.

     (b)  Every separate trustee and co-trustee shall, to the extent permitted
by law, be appointed and act subject to the following provisions and conditions:

          (i)    all rights, powers, duties and obligations conferred or imposed
upon the Indenture Trustee shall be conferred or imposed upon and exercised or
performed by the Indenture Trustee and such

                                       36
<Page>

separate trustee or co-trustee jointly (it being understood that such separate
trustee or co-trustee is not authorized to act separately without the Indenture
Trustee joining in such act), except to the extent that under any law of any
jurisdiction in which any particular act or acts are to be performed the
Indenture Trustee shall be incompetent or unqualified to perform such act or
acts, in which event such rights, powers, duties and obligations (including the
holding of title to the Indenture Trust Estate or any portion thereof in any
such jurisdiction) shall be exercised and performed singly by such separate
trustee or co-trustee, but solely at the direction of the Indenture Trustee;

          (ii)   no trustee hereunder shall be personally liable by reason of
any act or omission of any other trustee hereunder; and

          (iii)  the Indenture Trustee may at any time accept the resignation of
or remove any separate trustee or co-trustee.

     (c)  Any notice, request or other writing given to the Indenture Trustee
shall be deemed to have been given to each of the then separate trustees and
co-trustees, as effectively as if given to each of them. Every instrument
appointing any separate trustee or co-trustee shall refer to this Indenture and
the conditions of this Article VI. Each separate trustee and co-trustee, upon
its acceptance of the trusts conferred, shall be vested with the estates or
property specified in its instrument of appointment, either jointly with the
Indenture Trustee or separately, as may be provided therein, subject to all the
provisions of this Indenture, specifically including every provision of this
Indenture relating to the conduct of, affecting the liability of, or affording
protection to, the Indenture Trustee. Every such instrument shall be filed with
the Indenture Trustee.

     (d)  Any separate trustee or co-trustee may at any time constitute the
Indenture Trustee, its agent or attorney-in-fact with full power and authority,
to the extent not prohibited by law, to do any lawful act under or in respect of
this Indenture on its behalf and in its name. If any separate trustee or
co-trustee shall die, become incapable of acting, resign or be removed, all its
estates, properties, rights, remedies and trusts shall vest in and be exercised
by the Indenture Trustee, to the extent permitted by law, without the
appointment of a new or successor trustee.

          SECTION 6.11  ELIGIBILITY; DISQUALIFICATION. The Indenture Trustee
shall at all times satisfy the requirements of TIA Section 310(a) and the
requirements of an "eligible lender" under 20 USC Section 1085(d). The Indenture
Trustee shall have a combined capital and surplus of at least $50,000,000 as set
forth in its most recent published annual report of condition and it shall have
a long-term senior unsecured debt rating of not less than investment grade by
each of the Rating Agencies. The Indenture Trustee shall comply with TIA Section
310(b), including the optional provision permitted by the second sentence of TIA
Section 310(b)(9); PROVIDED, HOWEVER, that there shall be excluded from the
operation of TIA Section 310(b)(1) any indenture or indentures under which other
securities of the Issuer are outstanding if the requirements for such exclusion
set forth in TIA Section 310(b)(1) are met.

          SECTION 6.12  PREFERENTIAL COLLECTION OF CLAIMS AGAINST ISSUER. The
Indenture Trustee shall comply with TIA Section 311(a), excluding any creditor
relationship listed in TIA Section 311(b). An Indenture Trustee who has resigned
or been removed shall be subject to TIA Section 311(a) to the extent indicated.

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                                   ARTICLE VII

                         NOTEHOLDERS' LISTS AND REPORTS

          SECTION 7.1   ISSUER TO FURNISH INDENTURE TRUSTEE NAMES AND ADDRESSES
OF NOTEHOLDERS. The Issuer will furnish or cause to be furnished to the
Indenture Trustee (a) not more than five days after the earlier of (i) each
Record Date and (ii) three months after the last Record Date, a list, in such
form as the Indenture Trustee may reasonably require, of the names and addresses
of the Noteholders as of such Record Date, (b) at such other times as the
Indenture Trustee may request in writing, within 30 days after receipt by the
Issuer of any such request, a list of similar form and content as of a date not
more than 10 days prior to the time such list is furnished; PROVIDED, HOWEVER,
that so long as the Indenture Trustee is the Note Registrar, no such list shall
be required to be furnished.

          SECTION 7.2   PRESERVATION OF INFORMATION; COMMUNICATIONS TO
NOTEHOLDERS. The Indenture Trustee shall preserve, in as current a form as is
reasonably practicable, the names and addresses of the Noteholders contained in
the most recent list furnished to the Indenture Trustee as provided in Section
7.1 and the names and addresses of Noteholders received by the Indenture Trustee
in its capacity as Note Registrar. The Indenture Trustee may destroy any list
furnished to it as provided in such Section 7.1 upon receipt of a new list so
furnished.

     (a)  Noteholders may communicate pursuant to TIA Section 312(b) with other
Noteholders with respect to their rights under this Indenture or under the
Notes. Upon receipt by the Indenture Trustee of any request by three or more
Noteholders or by one or more holders of Notes evidencing not less than 25% of
the Outstanding Amount of the Notes to receive a copy of the current list of
Noteholders (whether or not made pursuant to TIA Section 312(b)), the Indenture
Trustee shall promptly notify the Administrator thereof by providing to the
Administrator a copy of such request and a copy of the list of Noteholders
produced in response thereto.

     (b)  The Issuer, the Indenture Trustee and the Note Registrar shall have
the protection of TIA Section 312(c).

     (c)  On each Distribution Date the Indenture Trustee shall provide to each
Noteholder of record as of the related Record Date the information provided by
the Administrator to the Indenture Trustee on the related Determination Date
pursuant to Section 2.9 of the Administration Agreement.

     (d)  The Indenture Trustee shall furnish to the Noteholders promptly upon
receipt of a written request therefor, duplicates or copies of all reports,
notices, requests, demands, certificates, financial statements and any other
instruments furnished to the Indenture Trustee under the Basic Documents. The
Indenture Trustee shall furnish to the Noteholders promptly upon receipt thereof
from the Eligible Lender Trustee notice of any amendment of the Administration
Agreement pursuant to Section 8.5 of the Administration Agreement.

          SECTION 7.3   REPORTS BY ISSUER. (a) The Issuer shall:

          (i)    file with the Indenture Trustee, within 15 days after the
Issuer is required to file the same with the Commission, copies of the annual
reports and of the information,

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documents and other reports (or copies of such portions of any of the foregoing
as the Commission may from time to time by rules and regulations prescribe)
which the Issuer may be required to file with the Commission pursuant to Section
13 or 15(d) of the Exchange Act;

          (ii)   file with the Indenture Trustee and the Commission in
accordance with rules and regulations prescribed from time to time by the
Commission such additional information, documents and reports with respect to
compliance by the Issuer with the conditions and covenants of this Indenture as
may be required from time to time by such rules and regulations; and

          (iii)  supply to the Indenture Trustee (and the Indenture Trustee
shall transmit by mail to all Noteholders described in TIA Section 313(c)) such
summaries of any information, documents and reports required to be filed by the
Issuer pursuant to clauses (i) and (ii) of this Section 7.3(a) as may be
required by rules and regulations prescribed from time to time by the
Commission.

     (b)  Unless the Issuer otherwise determines, the fiscal year of the Issuer
shall end on December 31 of each year.

                                  ARTICLE VIII

                      ACCOUNTS, DISBURSEMENTS AND RELEASES

          SECTION 8.1   COLLECTION OF MONEY. Except as otherwise expressly
provided herein, the Indenture Trustee may demand payment or delivery of, and
shall receive and collect, directly and without intervention or assistance of
any fiscal agent or other intermediary, all money and other property payable to
or receivable by the Indenture Trustee pursuant to this Indenture. The Indenture
Trustee shall apply all such money received by it on behalf of Noteholders
pursuant to the Administration Agreement as provided in this Indenture. Except
as otherwise expressly provided in this Indenture, if any default occurs in the
making of any payment or performance under any agreement or instrument that is
part of the Indenture Trust Estate, the Indenture Trustee may take such action
as may be appropriate to enforce such payment or performance, including the
institution and prosecution of appropriate Proceedings. Any such action shall be
without prejudice to any right to claim a Default under this Indenture and any
right to proceed thereafter as provided in Article V.

          SECTION 8.2   TRUST ACCOUNTS. (a) On or prior to the Closing Date, the
Issuer shall cause the Administrator to establish and maintain, in the name of
the Indenture Trustee, for the benefit of the Noteholders, the Trust Accounts as
provided in Section 2.3 of the Administration Agreement.

     (b)  On or before the Business Day preceding each Distribution Date, all
Available Funds with respect to the preceding Collection Period will be
deposited in the Collection Account as provided in Section 2.4 of the
Administration Agreement. On or before each Distribution Date, the Indenture
Trustee (or any other Paying Agent) shall make the deposits and distributions as
provided in Sections 2.7, 2.8.1 and 2.8.2 of the Administration Agreement.

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          SECTION 8.3   GENERAL PROVISIONS REGARDING ACCOUNTS. (a) So long as no
Default shall have occurred and be continuing, all or a portion of the funds in
the Trust Accounts shall be invested in Eligible Investments and reinvested by
the Indenture Trustee upon Issuer Order, subject to the provisions of Section
2.3B of the Administration Agreement. All income or other gain from investments
of moneys deposited in the Trust Accounts (except for the Capitalized Interest
Account, if any) shall be deposited by the Indenture Trustee in the Collection
Account, and any loss resulting from such investments shall be charged to such
Trust Account. All income or other gain from investments of moneys deposited in
the Capitalized Interest Account, if any, shall be deposited by the Indenture
Trustee in the Capitalized Interest Account, and any loss resulting from such
investments shall be charged to the Capitalized Interest Account. The Issuer
will not direct the Indenture Trustee to make any investment of any funds or to
sell any investment held in any of the Trust Accounts unless the security
interest granted and perfected in such account will continue to be perfected in
such investment or the proceeds of such sale, in either case without any further
action by any Person, and, in connection with any direction to the Indenture
Trustee to make any such investment or sale, if requested by the Indenture
Trustee, the Issuer shall deliver to the Indenture Trustee an Opinion of
Counsel, acceptable to the Indenture Trustee, to such effect.

     (b)  Subject to Section 6.1(c), the Indenture Trustee shall not in any way
be held liable for the selection of Eligible Investments or by reason of any
insufficiency in any of the Trust Accounts resulting from any loss on any
Eligible Investment included therein except for losses attributable to the
Indenture Trustee's failure to make payments on such Eligible Investments issued
by the Indenture Trustee, in its commercial capacity as principal obligor and
not as trustee, in accordance with their terms.

     (c)  If (i) the Issuer shall have failed to give investment directions for
any funds on deposit in the Trust Accounts to the Indenture Trustee by 10:00
a.m. Eastern Time (or such other time as may be agreed by the Issuer and
Indenture Trustee) on any Business Day; or (ii) a Default shall have occurred
and be continuing with respect to the Notes but the Notes shall not have been
declared due and payable pursuant to Section 5.2, or, if such Notes shall have
been declared due and payable following an Event of Default, amounts collected
or receivable from the Indenture Trust Estate are being applied in accordance
with Section 5.5 as if there had not been such a declaration; then the Indenture
Trustee shall invest and reinvest funds in the Trust Accounts in the Eligible
Investments described in clause (d) of the definition thereof.

          SECTION 8.4   RELEASE OF INDENTURE TRUST ESTATE. (a) Subject to the
payment of its fees and expenses pursuant to Section 6.7, the Indenture Trustee
may, and when required by the provisions of this Indenture shall, execute
instruments to release property from the lien of this Indenture, or convey the
Indenture Trustee's interest in the same, in a manner and under circumstances
that are not inconsistent with the provisions of this Indenture. No party
relying upon an instrument executed by the Indenture Trustee as provided in this
Article VIII shall be bound to ascertain the Indenture Trustee's authority,
inquire into the satisfaction of any conditions precedent or see to the
application of any moneys.

     (b)  The Indenture Trustee shall, at such time as there are no Notes
Outstanding and all sums due the Indenture Trustee pursuant to Section 6.7 have
been paid, release any remaining portion of the Indenture Trust Estate that
secured the Notes from the lien of this Indenture and

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release to the Issuer or any other Person entitled thereto any funds then on
deposit in the Trust Accounts. The Indenture Trustee shall release property from
the lien of this Indenture pursuant to this Section 8.4(b) only upon receipt of
an Issuer Request accompanied by an Officers' Certificate of the Issuer, an
Opinion of Counsel and (if required by the TIA) Independent Certificates in
accordance with TIA Sections 314(c) and 314(d)(1) meeting the applicable
requirements of Section 11.1.

     (c)  Each Noteholder, by the acceptance of a Note, acknowledges that from
time to time the Indenture Trustee shall release the lien of this Indenture on
any Trust Student Loan to be sold to (i) the Depositor in accordance with
Section 6 of the Sale Agreement, (ii) to the Servicer in accordance with Section
3.5 of the Servicing Agreement and (iii) to Sallie Mae in accordance with
Section 6 of the Purchase Agreement, and each Noteholder, by the acceptance of a
Note, consents to any such release.

          SECTION 8.5   OPINION OF COUNSEL. The Indenture Trustee shall receive
at least seven days' notice when requested by the Issuer to take any action
pursuant to Section 8.4(a), accompanied by copies of any instruments involved,
and the Indenture Trustee shall also require, except in connection with any
action contemplated by Section 8.4(c), as a condition to such action, an Opinion
of Counsel, in form and substance satisfactory to the Indenture Trustee, stating
the legal effect of any such action, outlining the steps required to complete
the same, and concluding that all conditions precedent to the taking of such
action have been complied with and such action will not materially and adversely
impair the security for the Notes or the rights of the Noteholders in
contravention of the provisions of this Indenture; PROVIDED, HOWEVER, that such
Opinion of Counsel shall not be required to express an opinion as to the fair
value of the Indenture Trust Estate. Counsel rendering any such opinion may
rely, without independent investigation, on the accuracy and validity of any
certificate or other instrument delivered to the Indenture Trustee in connection
with any such action.

                                   ARTICLE IX

                             SUPPLEMENTAL INDENTURES

          SECTION 9.1   SUPPLEMENTAL INDENTURES WITHOUT CONSENT OF NOTEHOLDERS.
Without the consent of any Noteholders but with prior notice to the Rating
Agencies, the Issuer and the Indenture Trustee, when authorized by an Issuer
Order, at any time and from time to time, may enter into one or more indentures
supplemental hereto (which shall conform to the provisions of the Trust
Indenture Act as in force at the date of the execution thereof), in form
satisfactory to the Indenture Trustee, for any of the following purposes:

          (i)    to correct or amplify the description of any property at any
time subject to the lien of this Indenture, or better to assure, convey and
confirm unto the Indenture Trustee any property subject or required to be
subjected to the lien of this Indenture, or to subject to the lien of this
Indenture additional property;

          (ii)   to evidence the succession, in compliance with the applicable
provisions hereof, of another person to the Issuer, and the assumption by any
such successor of the covenants of the Issuer herein and in the Notes contained;

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          (iii)  to add to the  covenants of the Issuer,  for the benefit of the
Noteholders, or to surrender any right or power herein conferred upon the
Issuer;

          (iv)   to convey, transfer, assign, mortgage or pledge any property to
the Indenture Trustee;

          (v)    to cure any ambiguity, to correct or supplement any provision
herein or in any supplemental indenture which may be inconsistent with any other
provision herein or in any supplemental indenture or to make any other
provisions with respect to matters or questions arising under this Indenture or
in any supplemental indenture; provided that such action shall not materially
adversely affect the interests of the Noteholders;

          (vi)   to evidence and provide for the acceptance of the appointment
hereunder by a successor trustee with respect to the Notes and to add to or
change any of the provisions of this Indenture as shall be necessary to
facilitate the administration of the trusts hereunder by more than one trustee,
pursuant to the requirements of Article VI; or

          (vii)  to modify, eliminate or add to the provisions of this Indenture
to such extent as shall be necessary to effect the qualification of this
Indenture under the TIA or under any similar Federal statute hereafter enacted
and to add to this Indenture such other provisions as may be expressly required
by the TIA.

          The Indenture Trustee is hereby authorized to join in the execution of
any such supplemental indenture and to make any further appropriate agreements
and stipulations that may be therein contained.

     (b)  The Issuer and the Indenture Trustee, when authorized by an Issuer
Order, may, also without the consent of any of the Noteholders but with prior
notice to the Rating Agencies, enter into an indenture or indentures
supplemental hereto for the purpose of adding any provisions to, or changing in
any manner or eliminating any of the provisions of, this Indenture or of
modifying in any manner the rights of the Noteholders under this Indenture;
PROVIDED, HOWEVER, that such action shall not, as evidenced by an Opinion of
Counsel, adversely affect in any material respect the interests of any
Noteholder.

          SECTION 9.2   SUPPLEMENTAL INDENTURES WITH CONSENT OF NOTEHOLDERS. The
Issuer and the Indenture Trustee, when authorized by an Issuer Order, also may,
with prior notice to the Rating Agencies and with the consent of the Noteholders
of not less than a majority of the Outstanding Amount of the Notes, by Act of
such Noteholders delivered to the Issuer and the Indenture Trustee, enter into
an indenture or indentures supplemental hereto for the purpose of adding any
provisions to, or changing in any manner or eliminating any of the provisions
of, this Indenture or of modifying in any manner the rights of the Noteholders
under this Indenture; PROVIDED, HOWEVER, that no such supplemental indenture
shall, without the consent of the Noteholder of each Outstanding Note affected
thereby:

          (i)    change the date of payment of any installment of principal of
or interest on any Note, or reduce the principal amount thereof, the interest
rate thereon or the Redemption Price with respect thereto, change the provisions
of this Indenture relating to the application of collections on, or the proceeds
of the sale of, the Indenture Trust Estate to payment of principal

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of or interest on the Notes, or change any place of payment where, or the coin
or currency in which, any Note or the interest thereon is payable, or impair the
right to institute suit for the enforcement of the provisions of this Indenture
requiring the application of funds available therefor, as provided in Article V,
to the payment of any such amount due on the Notes on or after the respective
due dates thereof (or, in the case of redemption, on or after the Redemption
Date);

          (ii)   reduce the percentage of the Outstanding Amount of the Notes,
the consent of the Noteholders of which is required for any such supplemental
indenture, or the consent of the Noteholders of which is required for any waiver
of compliance with certain provisions of this Indenture or certain defaults
hereunder and their consequences provided for in this Indenture;

          (iii)  modify or alter the provisions of the proviso to the definition
of the term "Outstanding";

          (iv)   reduce the percentage of the Outstanding Amount of the Notes
required to direct the Indenture Trustee to direct the Issuer to sell or
liquidate the Indenture Trust Estate pursuant to Section 5.4;

          (v)    modify any provision of this Section except to increase any
percentage specified herein or to provide that certain additional provisions of
this Indenture or the other Basic Documents cannot be modified or waived without
the consent of the Noteholder of each Outstanding Note affected thereby;

          (vi)   modify any of the provisions of this Indenture in such manner
as to affect the calculation of the amount of any payment of interest or
principal due on any Note on any Distribution Date (including the calculation of
any of the individual components of such calculation) or to affect the rights of
the Noteholders to the benefit of any provisions for the mandatory redemption of
the Notes contained herein; or

          (vii)  permit the creation of any lien ranking prior to or on a parity
with the lien of this Indenture with respect to any part of the Indenture Trust
Estate or, except as otherwise permitted or contemplated herein, terminate the
lien of this Indenture on any property at any time subject hereto or deprive any
Noteholder of any Note of the security provided by the lien of this Indenture.

          It shall not be necessary for any Act of Noteholders under this
Section to approve the particular form of any proposed supplemental indenture,
but it shall be sufficient if such Act shall approve the substance thereof.

          Promptly after the execution by the Issuer and the Indenture Trustee
of any supplemental indenture pursuant to this Section, the Indenture Trustee
shall mail to the Noteholders of the Notes to which such amendment or
supplemental indenture relates a notice setting forth in general terms the
substance of such supplemental indenture. Any failure of the Indenture Trustee
to mail such notice, or any defect therein, shall not, however, in any way
impair or affect the validity of any such supplemental indenture.

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          SECTION 9.3   EXECUTION OF SUPPLEMENTAL INDENTURES. In executing, or
permitting the additional trusts created by, any supplemental indenture
permitted by this Article IX or the modifications thereby of the trusts created
by this Indenture, the Indenture Trustee shall be entitled to receive, and
subject to Sections 6.1 and 6.2, shall be fully protected in relying upon, an
Opinion of Counsel stating that the execution of such supplemental indenture is
authorized or permitted by this Indenture. The Indenture Trustee may, but shall
not be obligated to, enter into any such supplemental indenture that affects the
Indenture Trustee's own rights, duties, liabilities or immunities under this
Indenture or otherwise.

          SECTION 9.4   EFFECT OF SUPPLEMENTAL INDENTURE. Upon the execution of
any supplemental indenture pursuant to the provisions hereof, this Indenture
shall be and be deemed to be modified and amended in accordance therewith with
respect to the Notes affected thereby, and the respective rights, limitations of
rights, obligations, duties, liabilities and immunities under this Indenture of
the Indenture Trustee, the Issuer and the Noteholders shall thereafter be
determined, exercised and enforced hereunder subject in all respects to such
modifications and amendments, and all the terms and conditions of any such
supplemental indenture shall be and be deemed to be part of the terms and
conditions of this Indenture for any and all purposes.

          SECTION 9.5   CONFORMITY WITH TRUST INDENTURE ACT. Every amendment of
this Indenture and every supplemental indenture executed pursuant to this
Article IX shall conform to the requirements of the Trust Indenture Act as then
in effect so long as this Indenture shall then be qualified under the Trust
Indenture Act.

          SECTION 9.6   REFERENCE IN NOTES TO SUPPLEMENTAL INDENTURES. Notes
authenticated and delivered after the execution of any supplemental indenture
pursuant to this Article IX may, and if required by the Indenture Trustee shall,
bear a notation in form approved by the Indenture Trustee as to any matter
provided for in such supplemental indenture. If the Issuer or the Indenture
Trustee shall so determine, new Notes so modified as to conform, in the opinion
of the Indenture Trustee and the Issuer, to any such supplemental indenture may
be prepared and executed by the Issuer and authenticated and delivered by the
Indenture Trustee in exchange for Outstanding Notes.

                                    ARTICLE X

                               REDEMPTION OF NOTES

          SECTION 10.1  REDEMPTION. The Indenture Trustee shall, upon receipt of
written notice from the Servicer pursuant to Section 6.1 of the Administration
Agreement, give prompt written notice to the Noteholders of the occurrence of
such event. In the event that the assets of the Trust are sold pursuant to
Section 6.1 of the Administration Agreement, that portion of the amounts on
deposit in the Trust Accounts to be distributed to the Noteholders shall be paid
to the Noteholders as provided in Sections 2.7 and 2.8. If amounts are to be
paid to Noteholders pursuant to this Section 10.1, the notice of such event from
the Indenture Trustee to the Noteholders shall include notice of the redemption
of Notes by application of such amounts on the next Distribution Date which is
not sooner than 15 days after the date of such notice (the "Redemption Date"),
whereupon all such amounts shall be payable on the Redemption Date.

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          SECTION 10.2  FORM OF REDEMPTION NOTICE. Notice of redemption under
Section 10.1 shall be given by the Indenture Trustee by first-class mail,
postage prepaid, or by facsimile, mailed or transmitted on or prior to the
applicable Redemption Date to each Noteholder, as of the close of business on
the Record Date preceding the applicable Redemption Date, at such Noteholder's
address or facsimile number appearing in the Note Register.

          All notices of redemption shall state:

          (i)    the Redemption Date;

          (ii)   the Redemption Price; and

          (iii)  the place where such Notes are to be surrendered for payment of
the Redemption Price (which shall be the office or agency of the Issuer to be
maintained as provided in Section 3.2).

          Notice of redemption of the Notes shall be given by the Indenture
Trustee in the name and at the expense of the Issuer. Failure to give notice of
redemption, or any defect therein, to any Noteholder of any Note shall not
impair or affect the validity of the redemption of any other Note.

          SECTION 10.3  NOTES PAYABLE ON REDEMPTION DATE. The Notes or portions
thereof to be redeemed shall on the Redemption Date become due and payable at
the Redemption Price and (unless the Issuer shall default in the payment of the
Redemption Price) no interest shall accrue on the Redemption Price for any
period after the date to which accrued interest is calculated for purposes of
calculating the Redemption Price.

                                   ARTICLE XI

                                  MISCELLANEOUS

          SECTION 11.1  COMPLIANCE CERTIFICATES AND OPINIONS, ETC. Upon any
application or request by the Issuer to the Indenture Trustee to take any action
under any provision of this Indenture, the Issuer shall furnish to the Indenture
Trustee and the Rating Agencies (i) an Officers' Certificate of the Issuer
stating that all conditions precedent, if any, provided for in this Indenture
relating to the proposed action have been complied with, (ii) an Opinion of
Counsel stating that in the opinion of such counsel all such conditions
precedent, if any, have been complied with and (iii) (if required by the TIA) an
Independent Certificate from a firm of certified public accountants meeting the
applicable requirements of this Section, except that, in the case of any such
application or request as to which the furnishing of such documents is
specifically required by any provision of this Indenture, no additional
certificate or opinion need be furnished.

          Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this indenture shall include:

          (i)    a statement that each signatory of such certificate or opinion
has read or has caused to be read such covenant or condition and the definitions
herein relating thereto;

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          (ii)   a brief statement as to the nature and scope of the examination
or investigation upon which the statements or opinions contained in such
certificate or opinion are based;

          (iii)  a statement that, in the opinion of each such signatory, such
signatory has made such examination or investigation as is necessary to enable
such signatory to express an informed opinion as to whether or not such covenant
or condition has been complied with; and

          (iv)   a statement as to whether, in the opinion of each such
signatory, such condition or covenant has been complied with.

     (b)  (i)    Prior to the deposit of any Collateral or other property or
securities with the Indenture Trustee that is to be made the basis for the
release of any property or securities subject to the lien of this Indenture, the
Issuer shall, in addition to any obligation imposed in Section 11.1(a) or
elsewhere in this Indenture, furnish to the Indenture Trustee and the Rating
Agencies an Officers' Certificate of the Issuer certifying or stating the
opinion of each person signing such certificate as to the fair value (within 90
days of such deposit) to the Issuer of the Collateral or other property or
securities to be so deposited.

          (ii)   Whenever the Issuer is required to furnish to the Indenture
Trustee and the Rating Agencies an Officers' Certificate of the Issuer
certifying or stating the opinion of any signer thereof as to the matters
described in clause (i) above, the Issuer shall also deliver to the Indenture
Trustee an Independent Certificate as to the same matters, if the fair value to
the Issuer of the securities to be so deposited and of all other such securities
made the basis of any such withdrawal or release since the commencement of the
then-current fiscal year of the Issuer, as set forth in the certificates
delivered pursuant to clause (i) above and this clause (ii), is 10% or more of
the Outstanding Amount of the Notes, but such a certificate need not be
furnished with respect to any securities so deposited, if the fair value thereof
to the Issuer as set forth in the related Officers' Certificate is less than
$25,000 or less than one percent of the Outstanding Amount of the Notes.

          (iii)  Other than any property released as contemplated by clause (v)
below, whenever any property or securities are to be released from the lien of
this Indenture, the Issuer shall also furnish to the Indenture Trustee an
Officers' Certificate of the Issuer certifying or stating the opinion of each
person signing such certificate as to the fair value (within 90 days of such
release) of the property or securities proposed to be released and stating that
in the opinion of such person the proposed release will not impair the security
under this Indenture in contravention of the provisions hereof.

          (iv)   Whenever the Issuer is required to furnish to the Indenture
Trustee an Officers' Certificate of the Issuer certifying or stating the opinion
of any signer thereof as to the matters described in clause (iii) above, the
Issuer shall also furnish to the Indenture Trustee an Independent Certificate as
to the same matters if the fair value of the property or securities and of all
other property, other than property as contemplated by clause (v) below, or
securities released from the lien of this Indenture since the commencement of
the then-current calendar year, as set forth in the certificates required by
clause (iii) above and this clause (iv), equals 10% or more of the Outstanding
Amount of the Notes, but such certificate need not be furnished in the case of

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any release of property or securities if the fair value thereof as set forth in
the related Officers' Certificate is less than $25,000 or less than one percent
of the then Outstanding Amount of the Notes.

          (v)    Notwithstanding Section 2.9 or any other provision of this
Section, the Issuer may, without compliance with the requirements of the other
provisions of this Section, (A) collect, liquidate, sell or otherwise dispose of
Trust Student Loans as and to the extent permitted or required by the Basic
Documents, (B) make cash payments out of the Trust Accounts as and to the extent
permitted or required by the Basic Documents and (C) convey to the Depositor,
the Servicer or another eligible lender those specified Trust Student Loans as
and to the extent permitted or required by and in accordance with Section 8.4(c)
hereof and Section 6 of the Sale Agreement, Section 3.5 of the Servicing
Agreement or Section 3.11E of the Servicing Agreement, respectively, so long as
the Issuer shall deliver to the Indenture Trustee every six months, commencing
June 25, 2003, an Officers' Certificate of the Issuer stating that all the
dispositions of Collateral described in clauses (A), (B) or (C) above that
occurred during the immediately preceding six calendar months were in the
ordinary course of the Issuer's business and that the proceeds thereof were
applied in accordance with the Basic Documents.

          SECTION 11.2  FORM OF DOCUMENTS DELIVERED TO INDENTURE TRUSTEE. In any
case where several matters are required to be certified by, or covered by an
opinion of, any specified Person, it is not necessary that all such matters be
certified by, or covered by the opinion of, only one such Person, or that they
be so certified or covered by only one document, but one such Person may certify
or give an opinion with respect to some matters, and one or more other such
Persons as to other matters, and any such Person may certify or give an opinion
as to such matters in one or several documents.

          Any certificate or opinion of an Authorized Officer of the Issuer may
be based, insofar as it relates to legal matters, upon a certificate or opinion
of, or representations by, counsel, unless such officer knows, or in the
exercise of reasonable care should know, that the certificate or opinion or
representations with respect to the matters upon which his certificate or
opinion is based are erroneous. Any such certificate of an Authorized Officer or
Opinion of Counsel may be based, insofar as it relates to factual matters, upon
a certificate or opinion of, or representations by, an officer or officers of
the Servicer, the Depositor, the Issuer or the Administrator, stating that the
information with respect to such factual matters is in the possession of the
Servicer, the Depositor, the Issuer or the Administrator, unless such counsel
knows, or in the exercise of reasonable care should know, that the certificate
or opinion or representations with respect to such matters are erroneous.

          Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this indenture, they may, but need not, be consolidated and
form one instrument.

          Whenever in this Indenture, in connection with any application or
certificate or report to the Indenture Trustee, it is provided that the Issuer
shall deliver any document as a condition of the granting of such application,
or as evidence of the Issuer's compliance with any term hereof, it is intended
that the truth and accuracy, at the time of the granting of such application or
at the effective date of such certificate or report (as the case may be), of the
facts

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and opinions stated in such document shall in such case be conditions precedent
to the right of the Issuer to have such application granted or to the
sufficiency of such certificate or report. The foregoing shall not, however, be
construed to affect the Indenture Trustee's right to rely upon the truth and
accuracy of any statement or opinion contained in any such document as provided
in Article VI.

          SECTION 11.3  ACTS OF NOTEHOLDERS. (a) Any request, demand,
authorization, direction, notice, consent, waiver or other action provided by
this Indenture to be given or taken by Noteholders may be embodied in and
evidenced by one or more instruments of substantially similar tenor signed by
such Noteholders in person or by agents duly appointed in writing; and except as
herein otherwise expressly provided such action shall become effective when such
instrument or instruments are delivered to the Indenture Trustee, and, where it
is hereby expressly required, to the Issuer. Such instrument or instruments (and
the action embodied therein and evidenced thereby) are herein sometimes referred
to as the "Act" of the Noteholders signing such instrument or instruments. Proof
of execution of any such instrument or of a writing appointing any such agent
shall be sufficient for any purpose of this Indenture and (subject to Section
6.1) conclusive in favor of the Indenture Trustee and the Issuer, if made in the
manner provided in this Section.

     (b)  The fact and date of the execution by any person of any such
instrument or writing may be proved in any manner that the Indenture Trustee
deems sufficient.

     (c)  The ownership of Notes shall be proved by the Note Register.

     (d)  Any request, demand, authorization, direction, notice, consent, waiver
or other action by the Noteholder of any Notes shall bind the Noteholder of
every Note issued upon registration of transfer thereof or in exchange therefor
or in lieu thereof, in respect of anything done, omitted or suffered to be done
by the Indenture Trustee or the Issuer in reliance thereon, whether or not
notation of such action is made upon such Note.

          SECTION 11.4  NOTICES, ETC., TO INDENTURE TRUSTEE, ISSUER AND RATING
AGENCIES. Any request, demand, authorization, direction, notice, consent, waiver
or Act of Noteholders or other documents provided or permitted by this Indenture
shall be in writing and if such request, demand, authorization, direction,
notice, consent, waiver or Act of Noteholders is to be made upon, given or
furnished to or filed with:

     (a)  The Indenture Trustee by any Noteholder, the Servicer, the
Administrator or by the Issuer shall be sufficient for every purpose hereunder
if made, given, furnished or filed in writing to or with the Indenture Trustee
at its Corporate Trust Office with a copy to: The Bank of New York, 2 North
LaSalle, Suite 1020, Chicago, Illinois, 60602, Attn: Corporate Trust -
Structured Finance.

     (b)  The Issuer by the Indenture Trustee or by any Noteholder shall be
sufficient for every purpose hereunder if in writing and mailed, first-class,
postage prepaid, to the Issuer addressed to: SLM Student Loan Trust 2002-7, in
care of Chase Manhattan Bank USA, National Association, Christiana Center/OPS4,
500 Stanton Christiana Road, Newark, Delaware 19713, Attention: Corporate Trust
Department; with copies to JPMorgan Chase Bank, 450 West 33rd

                                       48
<Page>

Street 15th Fl., New York, New York 10001, Attention: Structured Finance
Services; 11600 Sallie Mae Drive, Reston, VA 20193, Attention: Director,
Corporate Finance Operations, or any other address previously furnished in
writing to the Indenture Trustee by the Issuer or the Administrator. The Issuer
shall promptly transmit any notice received by it from the Noteholders to the
Indenture Trustee.

          Notices required to be given to the Rating Agencies by the Issuer, the
Indenture Trustee or the Eligible Lender Trustee shall be in writing, personally
delivered or mailed by certified mail, return receipt requested, to (i) in the
case of Moody's, at the following address: ABS Monitoring Department, 99 Church
Street, New York, New York 10007, (ii) in the case of Standard & Poor's, at the
following address: 55 Water Street, New York, New York 10041-0003, Attention:
Asset Backed Surveillance Department, 32nd Floor, and (iii) in the case of
Fitch, at the following address: One State Street Plaza, New York, New York
10004, Attention: Municipal Structured Finance Group; or as to each of the
foregoing, at such other address as shall be designated by written notice to the
other parties.

          SECTION 11.5  NOTICES TO NOTEHOLDERS; WAIVER. Where this Indenture
provides for notice to Noteholders of any event, such notice shall be
sufficiently given (unless otherwise herein expressly provided) if in writing
and mailed, first-class, postage prepaid to each Noteholder affected by such
event, at his address as it appears on the Note Register, not later than the
latest date, and not earlier than the earliest date, prescribed for the giving
of such notice. In any case where notice to Noteholders is given by mail,
neither the failure to mail such notice nor any defect in any notice so mailed
to any particular Noteholder shall affect the sufficiency of such notice with
respect to other Noteholders, and any notice that is mailed in the manner herein
provided shall conclusively be presumed to have been duly given.

          Where this Indenture provides for notice in any manner, such notice
may be waived in writing by any Person entitled to receive such notice, either
before or after the event, and such waiver shall be the equivalent of such
notice. Waivers of notice by Noteholders shall be filed with the Indenture
Trustee but such filing shall not be a condition precedent to the validity of
any action taken in reliance upon such a waiver.

          In case, by reason of the suspension of regular mail service as a
result of a strike, work stoppage or similar activity, it shall be impractical
to mail notice of any event to Noteholders when such notice is required to be
given pursuant to any provision of this Indenture, then any manner of giving
such notice as shall be satisfactory to the Indenture Trustee shall be deemed to
be a sufficient giving of such notice.

          Where this Indenture provides for notice to the Rating Agencies,
failure to give such notice shall not affect any other rights or obligations
created hereunder, and shall not under any circumstance constitute a Default.

          SECTION 11.6  ALTERNATE PAYMENT AND NOTICE PROVISIONS. Notwithstanding
any provision of this Indenture or any of the Notes to the contrary, the Issuer
may enter into any agreement with any Noteholder providing for a method of
payment, or notice by the Indenture Trustee or any Paying Agent to such
Noteholder, that is different from the methods provided for in this Indenture
for such payments or notices. The Issuer will furnish to the Indenture Trustee a

                                       49
<Page>

copy of each such agreement and the Indenture Trustee will cause payments to be
made and notices to be given in accordance with such agreements.

          SECTION 11.7  CONFLICT WITH TRUST INDENTURE ACT. If any provision
hereof limits, qualifies or conflicts with another provision hereof that is
required to be included in this Indenture by any of the provisions of the Trust
Indenture Act, such required provision shall control.

          The provisions of TIA Sections 310 through 317 that impose duties on
any Person (including the provisions automatically deemed included herein unless
expressly excluded by this Indenture) are a part of and govern this Indenture,
whether or not physically contained herein.

          SECTION 11.8  EFFECT OF HEADINGS AND TABLE OF CONTENTS. The Article
and Section headings herein and the Table of Contents are for convenience only
and shall not affect the construction hereof.

          SECTION 11.9  SUCCESSORS AND ASSIGNS. All covenants and agreements in
this Indenture and the Notes by the Issuer shall bind its successor and assigns,
whether so expressed or not. All agreements of the Indenture Trustee in this
Indenture shall bind the successors, co-trustees and agents (excluding any legal
representatives or accountants) of the Indenture Trustee.

          SECTION 11.10 SEPARABILITY. In case any provision in this Indenture or
in the Notes shall be invalid, illegal or unenforceable, the validity, legality,
and enforceability of the remaining provisions shall not in any way be affected
or impaired thereby.

          SECTION 11.11 BENEFITS OF INDENTURE.

     (a)  Nothing in this Indenture or in the Notes, express or implied shall
give to any person, other than the parties hereto and their successors
hereunder, the Noteholders, any other party secured hereunder, CSFBi, and any
other Person with an ownership interest in any part of the Indenture Trust
Estate, any benefit or any legal or equitable right, remedy or claim under this
Indenture.

     (b)  The parties to this Indenture acknowledge and agree that, pursuant to
Section 5(h) of the Schedule to the Swap Agreement the Trust has agreed (a) to
notify the Swap Counterparty of any amendment, modification or supplement to
this Indenture or any other Basic Document that would materially adversely
affect (i) the Swap Counterparty's ability to enforce or protect its rights or
remedies under the Swap Agreement, (ii) the ability of the Trust to timely and
fully perform its obligations under the Swap Agreement, or (iii) any of the
terms of the Administration Agreement Supplement or this Indenture which relates
to payments to or rights of the Swap Counterparty under the Basic Documents, and
(b) to obtain the written consent of the Swap Counterparty to any such
amendment, modification or supplement. Any such amendment, modification or
supplement without the written consent of the Swap Counterparty shall be void
and unenforceable.

     (c)  Accordingly, the parties to this Indenture acknowledge and agree that
the Swap Counterparty is a third party beneficiary of this Indenture to the
extent of its rights under the

                                       50
<Page>

Swap Agreement in respect of this Agreement and shall be entitled to enforce
such rights under this Indenture. Notices to the Swap Counterparty under this
Section 6 shall be addressed to CSFBi, One Cabot Square, London, England E14
4QJ, attention Anthony Chilcott (+44 20 7888 3768), with a copy to Lisa Taylor
(+44 20 7883 6217).

          SECTION 11.12 LEGAL HOLIDAYS. In any case where the date on which any
payment is due shall not be a Business Day, then (notwithstanding any other
provision of the Notes or this Indenture) payment need not be made on such date,
but may be made on the next succeeding Business Day with the same force and
effect as if made on the date on which nominally due, and no interest shall
accrue for the period from and after any such nominal date.

          SECTION 11.13 GOVERNING LAW. This Indenture shall be construed in
accordance with the laws of the State of New York, without reference to its
conflict of law provisions (other than Section 5-1401 of the New York General
Obligations Law), and the obligations, rights and remedies of the parties
hereunder shall be determined in accordance with such laws.

          SECTION 11.14 COUNTERPARTS. This Indenture may be executed in any
number of counterparts, each of which so executed shall be deemed to be an
original, but all such counterparts shall together constitute but one and the
same instrument.

          SECTION 11.15 RECORDING OF INDENTURE. If this Indenture is subject to
recording in any appropriate public recording offices, such recording is to be
effected by the Issuer and at its expense accompanied by an Opinion of Counsel
(which may be counsel to the Indenture Trustee or any other counsel reasonably
acceptable to the Indenture Trustee) to the effect that such recording is
necessary either for the protection of the Noteholders or any other Person
secured hereunder or for the enforcement of any right or remedy granted to the
Indenture Trustee under this Indenture.

          SECTION 11.16 TRUST OBLIGATIONS. No recourse may be taken, directly or
indirectly, with respect to the obligations of the Issuer, the Depositor, the
Administrator, the Servicer, the Eligible Lender Trustee or the Indenture
Trustee on the Notes or under this Indenture or any certificate or other writing
delivered in connection herewith or therewith, against (i) the Indenture Trustee
or the Eligible Lender Trustee in its individual capacity, (ii) any owner of a
beneficial interest in the Issuer or (iii) any partner, owner, beneficiary,
agent, officer, director or employee of the Indenture Trustee or the Eligible
Lender Trustee in its individual capacity, any holder or owner of a beneficial
interest in the Issuer, the Eligible Lender Trustee or the Indenture Trustee or
of any successor or assign thereof in its individual capacity, except as any
such Person may have expressly agreed (it being understood that the Indenture
Trustee and the Eligible Lender Trustee have no such obligations in their
individual capacity) and except that any such partner, owner or beneficiary
shall be fully liable, to the extent provided by applicable law, for any unpaid
consideration for stock, unpaid capital contribution or failure to pay any
installment or call owing to such entity. For all purposes of this Indenture, in
the performance of any duties or obligations of the Issuer hereunder, the
Eligible Lender Trustee shall be subject to, and entitled to the benefits of,
the terms and provisions of Article VI, VII and VIII of the Trust Agreement.

                                       51
<Page>

          SECTION 11.17 NO PETITION. The Indenture Trustee, by entering into
this Indenture, and each Noteholder, by accepting a Note, hereby covenant and
agree that they shall not at any time institute against the Depositor or the
Issuer, or join in any institution against the Depositor or the Issuer of, any
bankruptcy, reorganization, arrangement, insolvency, receivership or liquidation
proceedings, or other proceedings under any United States Federal or state
bankruptcy or similar law in connection with any obligations relating to the
Notes, this Indenture or any of the other Basic Documents. The foregoing shall
not limit the rights of the Indenture Trustee to file any claim in, or otherwise
take any action with respect to, any insolvency proceeding that was instituted
against the Issuer by any Person other than the Indenture Trustee.

          SECTION 11.18 INSPECTION. The Issuer agrees that, on reasonable prior
notice, it shall permit any representative of the Indenture Trustee, during the
Issuer's normal business hours, to examine all the books of account, records,
reports, and other papers of the Issuer, to make copies and extracts therefrom,
to cause such books to be audited by Independent certified public accountants,
and to discuss the Issuer's affairs, finances and accounts with the Issuer's
officers, employees, and Independent certified public accountants, all at such
reasonable times and as often as may be reasonably requested. The Indenture
Trustee shall and shall cause its representatives to hold in confidence all such
information obtained from such examination or inspection except to the extent
disclosure may be required by law (and all reasonable applications for
confidential treatment are unavailing) and except to the extent that the
Indenture Trustee may reasonably determine that such disclosure is consistent
with its obligations hereunder.

                                       52
<Page>

          IN WITNESS WHEREOF, the Issuer, the Eligible Lender Trustee and the
Indenture Trustee have caused this Indenture to be duly executed by their
respective officers, thereunto duly authorized and duly attested, all as of the
day and year first above written.

                       SLM STUDENT LOAN TRUST 2002-7

                       By: CHASE MANHATTAN BANK USA, NATIONAL
                       ASSOCIATION, not in its individual capacity but solely as
                       Eligible Lender Trustee


                       By: /S/ JOHN J. CASHIN
                            Name:    John J. Cashin
                            Title:   Vice President


                       CHASE MANHATTAN BANK USA, NATIONAL
                       ASSOCIATION, not in its individual capacity but solely as
                       Eligible Lender Trustee


                       By: /S/ JOHN J. CASHIN
                            Name:    John J. Cashin
                            Title:   Vice President


                       THE BANK OF NEW YORK,
                       not in its individual capacity but solely
                       as Indenture Trustee


                       By: /S/ ROBERT D. FOLTZ
                            Name:  Robert D. Foltz
                            Title: Agent

                                       53
<Page>

                                                                    APPENDIX A-1
                                                                TO THE INDENTURE

                              DEFINITIONS AND USAGE

<Page>

                                                                    APPENDIX A-2
                                                                TO THE INDENTURE

                         CERTAIN TERMS AND PROVISIONS OF
                             THE AUCTION RATE NOTES

     Except as provided below, all terms which are defined in Appendix A-1 shall
have the same meanings in this Appendix A-2. In addition, the following terms
shall have the following respective meanings:

     "ALL HOLD RATE" shall mean the Applicable LIBOR Rate less 0.20%; PROVIDED,
that in no event shall the applicable All Hold Rate be greater than the
applicable Maximum Rate.

     "APPLICABLE LIBOR RATE" means, (a) for Auction Periods of 35 days or less,
One-Month LIBOR, (b) for Auction Periods of more than 35 days but less than 91
days, Three-Month LIBOR, (c) for Auction Periods of more than 90 days but less
than 181 days, Six-Month LIBOR, and (d) for Auction Periods of more than 180
days, One-Year LIBOR.

     "AUCTION" shall mean the implementation of the Auction Procedures on an
Auction Date.

     "AUCTION AGENT" shall mean the Initial Auction Agent under the Initial
Auction Agent Agreement unless and until a Substitute Auction Agent Agreement
becomes effective, after which "Auction Agent" shall mean the Substitute Auction
Agent.

     "AUCTION AGENT AGREEMENT" shall mean the Initial Auction Agent Agreement
unless and until a Substitute Auction Agent Agreement is entered into, after
which "Auction Agent Agreement" shall mean such Substitute Auction Agent
Agreement.

     "AUCTION AGENT FEE" has the meaning set forth in the Auction Agent
Agreement.

     "AUCTION DATE" shall mean, initially, December 23, 2002 with respect to the
Class A-6 Notes, January 2, 2003 with respect to the Class A-7 Notes, January 9,
2003 with respect to the Class A-8 Notes, January 13, 2003 with respect to the
Class A-9 Notes, January 7, 2003 with respect to the Class A-10 Notes, January
22, 2003 with respect to the Class A-11 Notes, and December 23, 2002 with
respect to the Class B Notes, and thereafter, the Business Day immediately
preceding the first day of each Auction Period for each respective Class, other
than:

            (a)  each Auction Period commencing after the ownership of the
     applicable Auction Rate Notes is no longer maintained as Book-Entry Notes
     by the applicable Clearing Agency;

            (b)  each Auction Period commencing after and during the continuance
     of a Payment Default; or

            (c)  each Auction Period commencing less than two Business Days
     after the cure or waiver of a Payment Default.

                                        2
<Page>

Notwithstanding the foregoing, the Auction Date for one or more Auction Periods
may be changed pursuant to Section 2.02(h) of this APPENDIX A-2.

     "AUCTION NOTE INTEREST RATE" shall mean the Variable Rate of interest per
annum borne by an Auction Rate Note for each Auction Period and determined in
accordance with the provisions of Sections 2.01 and 2.02 of this APPENDIX A-2;
PROVIDED, HOWEVER, that in the event of a Payment Default, the Auction Note
Interest Rate shall equal the applicable Non-Payment Rate; PROVIDED, further,
however that such Auction Note Interest Rate shall in no event exceed the lesser
of the Student Loan Rate and the Maximum Rate.

     "AUCTION PERIOD" shall mean the period applicable to an Auction Rate Note
from the Business Day following the previous Auction Date to and including the
day before the next Interest Payment Date, which Auction Period (after the
Initial Period for such Class) initially shall consist generally of 28 days for
the Class A-6, Notes, the Class A-7 Notes, the Class A-8 Notes, the Class A-9
Notes, the Class A-10 Notes, the Class A-11 Notes and the Class B-1 Notes, as
the same may be adjusted pursuant to Section 2.02(g) of this APPENDIX A-2.

     "AUCTION PERIOD ADJUSTMENT" shall mean an adjustment to the Auction Period
as provided in Section 2.02(g) of this APPENDIX A-2.

     "AUCTION PROCEDURES" shall mean the procedures set forth in Section 2.02(a)
of this APPENDIX A-2 by which the Auction Rate is determined.

     "AUCTION RATE" shall mean the rate of interest per annum that results from
implementation of the Auction Procedures and is determined as described in
Section 2.02(a)(iii)(B) of this APPENDIX A-2.

     "AUTHORIZED DENOMINATIONS" shall mean $50,000 and any integral multiple
thereof.

     "AVAILABLE AUCTION RATE NOTES" has the meaning set forth in Section
2.02(a)(iii)(A)(1) of this APPENDIX A-2.

     "BID" has the meaning set forth in Section 2.02(a)(i)(A) of this APPENDIX
A-2.

     "BID AUCTION RATE" has the meaning set forth in Section 2.02(a)(iii)(A) of
this APPENDIX A-2.

     "BIDDER" has the meaning set forth in Section 2.02(a)(i)(A) of this
APPENDIX A-2.

     "BOND EQUIVALENT YIELD" shall mean, in respect of any security the rate for
which is quoted in THE WALL STREET JOURNAL on a bank discount basis, the "bond
equivalent yield" (expressed as a percentage) for such security which appears on
Telerate's United States Treasury and Money Market Composite Page 0223, rounded
up to the nearest one one-hundredth of one percent.

     "BROKER-DEALER" shall mean Salomon Smith Barney Inc., Credit Suisse First
Boston Corporation, Lehman Brothers Inc. or any other broker or dealer (each as
defined in the Securities Exchange Act of 1934, as amended), commercial bank or
other entity permitted by

                                        3
<Page>

law to perform the functions required of a Broker-Dealer set forth in the
Auction Procedures that (a) is a Clearing Agency Participant (or an affiliate of
a Clearing Agency Participant), (b) has been appointed as such by the Issuer
pursuant to Section 2.02(f) of this APPENDIX A-2, and (c) has entered into a
Broker-Dealer Agreement that is in effect on the date of reference.

     "BROKER-DEALER AGREEMENTS" shall mean the agreements between the Auction
Agent and the Broker-Dealers, and approved by the Issuer, pursuant to which the
Broker-Dealers agree to participate in Auctions as set forth in the Auction
Procedures, as from time to time amended or supplemented. The Broker-Dealer
Agreements shall be in substantially the form of the Broker -Dealer Agreements,
dated as of November 26, 2002, among the Issuer, The Bank of New York, as
Auction Agent, and the initial Broker-Dealers.

     "BROKER-DEALER FEE" has the meaning set forth in the Auction Agent
Agreement.

     "CAP RATE" shall mean, with respect to any Accrual Period applicable to the
Auction Rate Notes, the lesser of (i) the applicable Maximum Rate for the
related Auction Period and (ii) the Student Loan Rate in effect for the related
Auction Period.

     "CARRY-OVER AMOUNT" shall mean, for any Accrual Period during which
interest is calculated at the Student Loan Rate, the excess, if any, of (a) the
amount of interest on an Auction Rate Note that would have accrued with respect
to the related Accrual Period at the lesser of (i) the applicable Auction Rate
and (ii) the Maximum Rate determined as if the Student Loan Rate were not a
component thereof over (b) the amount of interest on such Auction Rate Note
actually accrued with respect to such Auction Rate Note with respect to such
Accrual Period based on the Student Loan Rate, together with the unreduced
portion of any such excess from prior Accrual Periods; provided that any
reference to "principal" or "interest" in the Supplemental Indenture and in this
Appendix A-2 and the Auction Rate Notes shall not include within the meanings of
such words any Carry-over Amount or any interest accrued on any Carry-over
Amount.

     "CLASS A CARRY-OVER AMOUNT" shall mean the Carry-over Amount with respect
to the Class A Auction Rate Notes.

     "CLASS B CARRY-OVER AMOUNT" shall mean the Carry-over Amount with respect
to the Class B Notes."

     "COMMERCIAL PAPER RATE (90-DAY)" shall mean the rate determined at the end
of each calendar quarter using the daily average of that quarter's bond
equivalent 3-Month Financial Commercial Paper rates. The daily bond equivalent
rates are calculated from the 3-Month Financial Commercial Paper discount rates
published in the Federal Reserve's H.15 report. On weekends, holidays, and any
other day when no H.15 rates are available, the rate from the most recent
published date is used.

     "EFFECTIVE INTEREST RATE" shall mean, with respect to any Trust Student
Loan, the interest rate per annum payable by the borrower as of the last day of
the calendar quarter borne by such Trust Student Loan after giving effect to any
reduction in such interest rate pursuant to borrower incentives, (a) less all
accrued rebate fees on such Trust Student Loan paid during such calendar quarter
expressed as a percentage per annum and (b) plus all accrued Interest Subsidy
Payments

                                        4
<Page>

and Special Allowance Payments applicable to such Trust Student Loan during such
calendar quarter expressed as a percentage per annum.

     "ELIGIBLE CARRY-OVER MAKE-UP AMOUNT" shall mean, with respect to each
Accrual Period relating to the Auction Rate Notes as to which, as of the first
day of such Accrual Period, there is any unpaid Carry-over Amount, an amount
equal to the lesser of (a) interest computed on the principal balance of the
Auction Rate Notes in respect to such Accrual Period at a per annum rate equal
to the excess, if any, of the Student Loan Rate over the Auction Rate, together
with the unreduced portion of any such excess from prior Accrual Periods and (b)
the aggregate Carry-over Amount remaining unpaid as of the first day of such
Accrual Period together with interest accrued and unpaid thereon through the end
of such Accrual Period.

     "EXISTING OWNER" shall mean (a) with respect to and for the purpose of
dealing with the Auction Agent in connection with an Auction, a Person who is a
Broker-Dealer listed in the Existing Owner Registry at the close of business on
the Business Day immediately preceding the Auction Date for such Auction and (b)
with respect to and for the purpose of dealing with the Broker-Dealers in
connection with an Auction, a Person who is a beneficial owner of Auction Rate
Notes.

     "EXISTING OWNER REGISTRY" shall mean the registry of Persons who are owners
of the Auction Rate Notes, maintained by the Auction Agent as provided in the
Auction Agent Agreement.

     "EXPENSE PERCENTAGE" the fees payable to the Administrator, the Servicer,
the Broker-Dealers and the Auction Agent as a percentage of the total principal
balance of the Notes outstanding.

     "HOLD ORDER" has the meaning set forth in Section 2.02(a)(i)(A) of this
APPENDIX A-2.

     "INITIAL AUCTION AGENT" shall mean The Bank of New York, a New York banking
corporation, its successors and assigns.

     "INITIAL AUCTION AGENT AGREEMENT" shall mean, collectively, the Auction
Agent Agreement dated as of November 26, 2002, by and among the Issuer, the
Indenture Trustee and the Initial Auction Agent, including any amendment thereof
or supplement thereto.

     "INITIAL PERIOD" shall mean, as to Auction Rate Notes, the period
commencing on the Closing Date and continuing through the day immediately
preceding the Initial Rate Adjustment Date for such Auction Rate Notes.

     "INITIAL RATE" shall mean [___]% for the Class A-6 Notes, [___]% for the
Class A-7 Notes, [___]% for the Class A-8 Notes, [___]% for the Class A-9 Notes,
[___]% for the Class A-10 Notes, [___]% for the Class A-11 Notes and [___]% for
the Class B Notes.

     "INITIAL RATE ADJUSTMENT DATE" shall mean the day immediately following the
Initial Auction Date for each class of Auction Rate Notes.

                                        5
<Page>

     "INTEREST RATE ADJUSTMENT DATE" shall mean the date on which an Auction
Note Interest Rate is effective, and shall mean, with respect to the Auction
Rate Notes, the date of commencement of each Auction Period.

     "INTEREST RATE DETERMINATION DATE" shall mean, with respect to the Auction
Rate Notes, the Auction Date, or if no Auction Date is applicable to such Class,
the Business Day immediately preceding the date of commencement of an Auction
Period.

     "MAXIMUM RATE" means the least of (a) either (i) the Applicable LIBOR Rate
plus 1.50% (if the ratings assigned by Moody's, S&P and Fitch to the Auction
Rate Notes are "Aaa," "AAA" and "AAA," respectively, or better) or (ii) the
Applicable LIBOR Rate plus 2.50% (if any one of the ratings assigned by Moody's,
S&P and Fitch to the Auction Rate Notes is less than "Aaa," "AAA" and "AAA,"
respectively, and greater than or equal to "A3," "A-" and "A-," respectively),
or (iii) the Applicable LIBOR Rate plus 3.50% (if any one of the ratings
assigned by Moody's, S&P and Fitch to the Auction Rate Notes is less than "A3,"
"A-" and "A-" respectively), (b) 18% and (c) the highest rate the Issuer may
legally pay, from time to time, as interest on the Auction Rate Notes. For
purposes of the Auction Agent and the Auction Procedures, the ratings referred
to in this definition shall be the last ratings of which the Auction Agent has
been given written notice pursuant to the Auction Agent Agreement.

     "NON-PAYMENT RATE" shall mean One-Month LIBOR plus 1.50%.

     "ONE-MONTH LIBOR," "THREE-MONTH LIBOR," "SIX-MONTH LIBOR" or "ONE-YEAR
LIBOR," shall mean the offered rate, as determined by the Auction Agent or
Indenture Trustee, as applicable, of the Applicable LIBOR Based Rate for United
States dollar deposits which appears on Telerate Page 3750, as reported by
Bloomberg Financial Markets Commodities News (or such other page as may replace
Telerate Page 3750 for the purpose of displaying comparable rates) as of
approximately 11:00 a.m., London time, on the LIBOR Determination Date;
PROVIDED, that if on any calculation date, no rate appears on Telerate Page 3750
as specified above, the Auction Agent or Indenture Trustee, as applicable, shall
determine the arithmetic mean of the offered quotations of four major banks in
the London interbank market, for deposits in United States dollars for the
respective periods specified above to the banks in the London interbank market
as of approximately 11:00 a.m., London time, on such calculation date and in a
principal amount of not less than $1,000,000 that is representative of a single
transaction in such market and at such time, unless fewer than two such
quotations are provided, in which case, the Applicable LIBOR Based Rate shall be
the arithmetic mean of the offered quotations that leading banks in New York
City selected by the Auction Agent or Indenture Trustee, as applicable, are
quoting on the relevant LIBOR Determination Date for loans in United States
dollars to leading European banks in a principal amount of not less than
$1,000,000 that is representative of a single transaction in such market at such
time. All percentages resulting from such calculations shall be rounded upwards,
if necessary, to the nearest one-hundredth of one percent.

     "ORDER" has the meaning set forth in Section 2.02(a)(i)(A) of this APPENDIX
A-2.

     "PAYMENT DEFAULT" shall mean, with respect to the Auction Rate Notes, (a) a
default in the due and punctual payment of any installment of interest at the
applicable Note Rate on such

                                        6
<Page>

Auction Rate Notes, or (b) a default in the due and punctual payment of any
interest on and principal of such Auction Rate Notes at their maturity.

     "POTENTIAL OWNER" shall mean any Person (including an Existing Owner that
is (a) a Broker-Dealer when dealing with the Auction Agent and (b) a potential
beneficial owner when dealing with a Broker-Dealer) who may be interested in
acquiring Auction Rate Notes (or, in the case of an Existing Owner thereof, an
additional principal amount of Auction Rate Notes).

     "PSA" shall mean the Public Securities Association, its successors and
assigns.

     "S&P" shall mean Standard & Poor's Ratings Services, a division of The
McGraw-Hill Companies, Inc., its successors and assigns.

     "SELL ORDER" has the meaning set forth in Section 2.02(a)(i)(A) of this
APPENDIX A-2.

     "STUDENT LOAN RATE" shall mean, respect to any Accrual Period applicable to
the Auction Rate Notes, the rate of interest per annum (rounded to the next
highest one-hundredth of one percent) equal to (i) the weighted average
Effective Interest Rate of the Trust Student Loans for the calendar quarter
immediately preceding such Accrual Period, as determined by the Issuer on the
last day of such calendar quarter, less (ii) the Expense Percentage, as
determined by the Issuer on the last day of each calendar year. The
determinations made by the Issuer in (b)(i) and (ii) of this definition of
"Student Loan Rate" shall be given in writing to the Auction Agent, the
Indenture Trustee and the Broker-Dealers immediately upon their respective
calculation dates.

     "SUBMISSION DEADLINE" shall mean 1:00 p.m., eastern time, on any Auction
Date or such other time on any Auction Date by which the Broker-Dealers are
required to submit Orders to the Auction Agent as specified by the Auction Agent
from time to time.

     "SUBMITTED BID" has the meaning set forth in Section 2.02(a)(iii)(A) of
this APPENDIX A-2.

     "SUBMITTED HOLD ORDER" has the meaning set forth in Section 2.02(a)(iii)(A)
of this APPENDIX A-2.

     "SUBMITTED ORDER" has the meaning set forth in Section 2.02(a)(iii)(A) of
this APPENDIX A-2.

     "SUBMITTED SELL ORDER" has the meaning set forth in Section 2.02(a)(iii)(A)
of this APPENDIX A-2.

     "SUBSTITUTE AUCTION AGENT" shall mean the Person with whom the Issuer and
the Indenture Trustee enter into a Substitute Auction Agent Agreement.

     "SUBSTITUTE AUCTION AGENT AGREEMENT" shall mean an auction agent agreement
containing terms substantially similar to the terms of the Initial Auction Agent
Agreement, whereby a Person having the qualifications required by Section
2.02(e) of this APPENDIX A-2 agrees with the Indenture Trustee and the Issuer to
perform the duties of the Auction Agent under this APPENDIX A-2.

                                        7
<Page>

     "SUFFICIENT BIDS" has the meaning set forth in Section 2.02(a)(iii)(A) of
this APPENDIX A-2.

     "VARIABLE RATE" shall mean the variable rate of interest per annum,
including the Initial Rate, borne by each Class of Auction Rate Notes during the
Initial Period for such Class, and each Accrual Period thereafter as such rate
of interest is determined in accordance with the provisions of ARTICLE II of
this APPENDIX A-2.

                                   ARTICLE II

                               TERMS AND ISSUANCE

     Section 2.01 AUCTION RATE AND CARRY-OVER AMOUNTS. During the Initial
Period, each Class of Auction Rate Notes shall bear interest at the Initial Rate
for such Class. Thereafter, and except with respect to an Auction Period
Adjustment, the Auction Rate Notes shall bear interest at an Auction Note
Interest Rate based on a 28-day Auction Period for the Auction Rate Notes, as
determined pursuant to this Section 2.01 and Section 2.02 of this APPENDIX A-2.

     For the Auction Rate Notes during the Initial Period and each Auction
Period thereafter, interest at the applicable Auction Rate Notes Interest Rate
shall accrue daily and shall be computed for the actual number of days elapsed
on the basis of a year consisting of 360 days.

     The Auction Note Interest Rate to be borne by the Auction Rate Notes after
such Initial Period for each Auction Period until an Auction Period Adjustment,
if any, shall be determined as described below. Each such Auction Period after
the Initial Period shall commence on and include the day following the
expiration of the immediately preceding Auction Period and terminate on and
include the third Business Day of the following fourth week in the case of the
Class A-6 Notes, the Class A-7 Notes, the Class A-8 Notes, the Class A-9 Notes,
the Class A-10 Notes, the Class A-11 Notes and the Class B Notes; provided,
however, that in the case of the Auction Period that immediately follows the
Initial Period for the Auction Rate Notes, such Auction Period shall commence on
the Initial Rate Adjustment Date. The Auction Note Interest Rate of the Auction
Rate Notes for each Auction Period shall be the Auction Rate in effect for such
Auction Period as determined in accordance with Section 2.02(a) of this Appendix
A-2; provided that if, on any Interest Rate Determination Date, an Auction is
not held for any reason, then the Auction Note Interest Rate on such Auction
Rate Notes for the next succeeding Auction Period shall be the applicable Cap
Rate.

     Notwithstanding the foregoing:

            (a)  if the ownership of an Auction Rate Note is no longer
     maintained as a Book-Entry Note, the Auction Note Interest Rate on the
     Auction Rate Notes for any Accrual Period commencing after the delivery of
     certificates representing Auction Rate Notes pursuant to this Indenture
     shall equal the Cap Rate; or

            (b)  if a Payment Default shall have occurred, the Auction Note
     Interest Rate on the Auction Rate Notes for the Accrual Period commencing
     on or immediately after such Payment Default, and for each Accrual Period
     thereafter, to and including the Accrual Period, if any, during which, or
     commencing less than two Business Days after,

                                        8
<Page>

     such Payment Default is cured, shall equal the applicable Non-Payment Rate
     on the first day of each such Accrual Period.

     In accordance with Section 2.02(a)(iii)(B) and (C) of this APPENDIX A-2,
the Auction Agent shall promptly give written notice to the Indenture Trustee
and the Issuer of each Auction Note Interest Rate (unless the Auction Note
Interest Rate is the applicable Non-Payment Rate) and the Maximum Rate when such
rate is not the Auction Note Interest Rate, applicable to the Auction Rate
Notes. The Indenture Trustee shall, upon request, notify the Noteholders and the
Issuer of Auction Rate Notes of the applicable Auction Note Interest Rate
applicable to such Auction Rate Notes for each Auction Period not later than the
third Business Day of such Auction Period. Notwithstanding any other provision
of the Auction Rate Notes or this Indenture and except for the occurrence of a
Payment Default, interest payable on the Auction Rate Notes for an Auction
Period shall never exceed for such Auction Period the amount of interest payable
at the applicable Maximum Rate in effect for such Auction Period.

     If the Auction Rate for the Auction Rate Notes is greater than the Student
Loan Rate, then the Variable Rate applicable to such Auction Rate Notes for that
Accrual Period will be the Student Loan Rate and the Issuer shall determine the
Carry-over Amount, if any, with respect to such Auction Rate Notes for such
Accrual Period.

     Such Carry-over Amount shall bear interest calculated at a rate equal to
One-Month LIBOR (as determined by the Issuer, provided the Indenture Trustee has
received notice of One-Month LIBOR from the Issuer, and if the Indenture Trustee
shall not have received such notice from the Issuer, then as determined by the
Indenture Trustee) from the Distribution Date for the Accrual Period with
respect to which such Carry-over Amount was calculated, until paid. Any payment
in respect of Carry-over Amount shall be applied, first, to any accrued interest
payable thereon and, second, in reduction of such Carry-over Amount. For
purposes of this Indenture and this APPENDIX A-2, any reference to "principal"
or "interest" herein shall not include within the meaning of such words
Carry-over Amount or any interest accrued on any such Carry-over Amount. Such
Carry-over Amount shall be separately calculated for each Auction Rate Note by
the Issuer during such Accrual Period in sufficient time for the Indenture
Trustee to give notice to each Noteholder of such Carry-over Amount as required
in the next succeeding sentence. Not less than four days before the Distribution
Date for an Accrual Period with respect to which such Carry-over Amount has been
calculated by the Issuer, the Indenture Trustee shall give written notice to
each Noteholder the Auction Agent and the Issuer, in the form provided by the
Issuer, of the Carry-over Amount applicable to each Auction Rate Note, which
written notice may accompany the payment of interest made to the Noteholder on
such Distribution Date. Such notice shall state, in addition to such Carry-over
Amount, that, unless and until an Auction Rate Note has been redeemed (other
than by optional redemption), after which all accrued Carry-over Amounts (and
all accrued interest thereon) that remains unpaid shall be canceled and no
Carry-over Amount (and interest accrued thereon) shall be paid with respect to
such Auction Rate Note, (a) the Carry-over Amount (and interest accrued thereon
calculated at a rate equal to One-Month LIBOR) shall be paid by the Indenture
Trustee pursuant to an Issuer Order on an Auction Rate Note on the earliest of
(i) the date of defeasance of the Auction Rate Notes or (ii) the first occurring
Distribution Date with respect to the Auction Rate Note (or on the date of any
such optional redemption) if and to the extent that (A) the Eligible Carry-over
Make-Up Amount with respect to such subsequent Accrual Period is greater than
zero, and (B) moneys are available

                                        9
<Page>

pursuant to the terms of the Indenture in an amount sufficient to pay all or a
portion of such Carry-over Amount (and interest accrued thereon), and (b)
interest shall accrue on the Carry-over Amount at a rate equal to One-Month
LIBOR until such Carry-over Amount is paid in full or is cancelled.

     The Carry-over Amount (and interest accrued thereon until the date of
payment) for Auction Rate Notes shall be allocated to the Auction Rate Notes by
the Indenture Trustee pursuant to an Issuer Order on Outstanding Auction Rate
Notes on the first occurring Quarterly Distribution Date if and to the extent
that (i) the Eligible Carry-over Make-Up Amount is greater than zero, and (ii)
on such Quarterly Distribution Date there are sufficient moneys available after
all distributions or allocations with a higher priority have been made and paid
to the Auction Rate Notes on the succeeding Distribution Date (or on such
Quarterly Distribution Date if it is a Distribution Date for such Auction Rate
Notes). Any Carry-over Amount (and any interest accrued thereon) on any Auction
Rate Note which is due and payable on a Quarterly Distribution Date, which
Auction Rate Note is to be allocated principal (other than by optional
redemption) on said Distribution Date, shall be paid to the Noteholder thereof
on the related Distribution Date to the extent that moneys are available
therefor in accordance with the provisions of this APPENDIX A-2; PROVIDED,
HOWEVER, that any Carry-over Amount (and any interest accrued thereon) which is
not yet due and payable on said Distribution Date shall be cancelled with
respect to said Auction Rate Note that is to be allocated principal (other than
by optional redemption) on said Quarterly Distribution Date and shall not be
paid on any succeeding Distribution Date. To the extent that any portion of the
Carry-over Amount (and any interest accrued thereon) remains unpaid after
payment of a portion thereof, such unpaid portion shall be paid in whole or in
part as required hereunder until fully allocated by the Indenture Trustee on the
next occurring Quarterly Distribution Date or Dates, as necessary, if and to the
extent that the conditions in the second preceding sentence are satisfied. [On
any Distribution Date on which the Indenture Trustee pays only a portion of the
Carry-over Amount (and any interest accrued thereon) on Auction Rate Notes, the
Indenture Trustee shall give written notice in the manner set forth in the
immediately preceding paragraph to the Noteholder of such Auction Rate Note
receiving such partial payment of the Carry-over Amount remaining unpaid on such
Auction Rate Note.

     The Quarterly Distribution Date or other date on which such Carry-over
Amount (or any interest accrued thereon) for Auction Rate Notes shall be
allocated shall be determined by the Indenture Trustee in accordance with the
provisions of the immediately preceding paragraph. Any payment of Carry-over
Amounts (and interest accrued thereon) shall reduce the amount of Eligible
Carry-over Make-up Amount.

     In the event that the Auction Agent no longer determines, or fails to
determine, when required, the Auction Note Interest Rate with respect to Auction
Rate Notes, or, if for any reason such manner of determination shall be held to
be invalid or unenforceable, the Auction Note Interest Rate for the next
succeeding Auction Period, for Auction Rate Notes shall be the applicable Cap
Rate as determined by the Auction Agent for such next succeeding Auction Period,
and if the Auction Agent shall fail or refuse to determine the Cap Rate, the Cap
Rate shall be determined by the securities dealer appointed by the Issuer
capable of making such a determination in accordance with the provisions of this
APPENDIX A-2 and written notice of such determination shall be given by such
securities dealer to the Indenture Trustee.

                                       10
<Page>

     Section 2.02 AUCTION RATE.

     (a)    DETERMINING THE AUCTION RATE. By purchasing Auction Rate Notes,
whether in an Auction or otherwise, each purchaser of the Auction Rate Notes, or
its Broker-Dealer, must agree and shall be deemed by such purchase to have
agreed (x) to participate in Auctions on the terms described herein, (y) to have
its beneficial ownership of the Auction Rate Notes maintained at all times as
Book-Entry Notes for the account of its Clearing Agency Participant, which in
turn will maintain records of such beneficial ownership and (z) to authorize
such Clearing Agency Participant to disclose to the Auction Agent such
information with respect to such beneficial ownership as the Auction Agent may
request.

     So long as the ownership of Auction Rate Notes is maintained as Book-Entry
Notes by the Clearing Agency, an Existing Owner may sell, transfer or otherwise
dispose of Auction Rate Notes only pursuant to a Bid or Sell Order placed in an
Auction or otherwise sell, transfer or dispose of Auction Rate Notes through a
Broker-Dealer, provided that, in the case of all transfers other than pursuant
to Auctions, such Existing Owner, its Broker-Dealer or its Clearing Agency
Participant advises the Auction Agent of such transfer. Auctions shall be
conducted on each Auction Date, if there is an Auction Agent on such Auction
Date, in the following manner:

            (i)  (A)  Prior to the Submission Deadline on each Auction Date;

                 (1)  each Existing Owner of Auction Rate Notes may submit to a
            Broker-Dealer by telephone or otherwise any information as to:

                      a.   the principal amount of Outstanding Auction Rate
                 Notes, if any, owned by such Existing Owner which such Existing
                 Owner desires to continue to own without regard to the Auction
                 Note Interest Rate for the next succeeding Auction Period;

                      b.   the principal amount of Outstanding Auction Rate
                 Notes, if any, which such Existing Owner offers to sell if the
                 Auction Note Interest Rate for the next succeeding Auction
                 Period shall be less than the rate per annum specified by such
                 Existing Owner; and/or

                      c.   the principal amount of Outstanding Auction Rate
                 Notes, if any, owned by such Existing Owner which such Existing
                 Owner offers to sell without regard to the Auction Note
                 Interest Rate for the next succeeding Auction Period;

                 and

                 (2)  one or more Broker-Dealers may contact Potential Owners to
            determine the principal amount of Auction Rate Notes which each
            Potential Owner offers to purchase, if the Auction Note Interest
            Rate for the next succeeding Auction Period shall not be less than
            the rate per annum specified by such Potential Owner.

                                       11
<Page>

     The statement of an Existing Owner or a Potential Owner referred to in (1)
or (2) of this paragraph (A) is herein referred to as an "Order," and each
Existing Owner and each Potential Owner placing an Order is herein referred to
as a "Bidder"; an Order described in clause (1)a. is herein referred to as a
"Hold Order"; an Order described in clauses (1)b. and (2) is herein referred to
as a "Bid"; and an Order described in clause (1)c. is herein referred to as a
"Sell Order."

                 (B)  (1)  Subject to the provisions of Section 2.02(a)(ii) of
            this APPENDIX A-2, a Bid by an Existing Owner shall constitute an
            irrevocable offer to sell:

                      a.   the principal amount of Outstanding Auction Rate
                 Notes specified in such Bid if the Auction Note Interest Rate
                 determined as provided in this Section 2.02(a) shall be less
                 than the rate specified therein; or

                      b.   such principal amount, or a lesser principal amount
                 of Outstanding Auction Rate Notes to be determined as set forth
                 in Section 2.02(a)(iv)(A)(4) of this Appendix A-2, if the
                 Auction Note Interest Rate determined as provided in this
                 Section 2.02(a) shall be equal to the rate specified therein;
                 or

                      c.   such principal amount, or a lesser principal amount
                 of Outstanding Auction Rate Notes to be determined as set forth
                 in Section 2.02(a)(iv)(B)(3) of this Appendix A-2, if the rate
                 specified therein shall be higher than the applicable Maximum
                 Rate and Sufficient Bids have not been made.

                 (2)  Subject to the provisions of Section 2.02(a)(ii) of this
            Appendix A-2, a Sell Order by an Existing Owner shall constitute an
            irrevocable offer to sell:

                      a.   the principal amount of Outstanding Auction Rate
                 Notes specified in such Sell Order; or

                      b.   such principal amount, or a lesser principal amount
                 of Outstanding Auction Rate Notes set forth in Section
                 2.02(a)(iv)(B)(3) of this Appendix A-2, if Sufficient Bids have
                 not been made.

                 (3)  Subject to the provisions of Section 2.02(a)(ii) of this
            Appendix A-2, a Bid by a Potential Owner shall constitute an
            irrevocable offer to purchase:

                      a.   the principal amount of Outstanding Auction Rate
                 Notes specified in such Bid if the Auction Note Interest Rate
                 determined as provided in this Section 2.02(a) shall be higher
                 than the rate specified in such Bid; or

                      b.   such principal amount, or a lesser principal amount
                 of Outstanding Auction Rate Notes set forth in Section
                 2.02(a)(iv)(A)(5) of this Appendix A-2, if the Auction Note
                 Interest Rate determined as

                                       12
<Page>

                 provided in this Section 2.02(a) shall be equal to the rate
                 specified in such Bid.

            (ii) (A)  Each Broker-Dealer shall submit in writing to the Auction
     Agent prior to the Submission Deadline on each Auction Date all Orders
     obtained by such Broker-Dealer and shall specify with respect to each such
     Order:

                 (1)  the name of the Bidder placing such Order;

                 (2)  the aggregate principal amount of Auction Rate Notes that
            are the subject of such Order;

                 (3)  to the extent that such Bidder is an Existing Owner:

                      a.   the principal amount of Auction Rate Notes, if any,
                 subject to any Hold Order placed by such Existing Owner;

                      b.   the principal amount of Auction Rate Notes, if any,
                 subject to any Bid placed by such Existing Owner and the rate
                 specified in such Bid; and

                      c.   the principal amount of Auction Rate Notes, if any,
                 subject to any Sell Order placed by such Existing Owner;

                 and

                 (4)  to the extent such Bidder is a Potential Owner, the rate
            specified in such Potential Owner's Bid.

            (B)  If any rate specified in any Bid contains more than three
     figures to the right of the decimal point, the Auction Agent shall round
     such rate up to the next higher one thousandth of 1%.

            (C)  If an Order or Orders covering all Outstanding Auction Rate
     Notes owned by an Existing Owner is not submitted to the Auction Agent
     prior to the Submission Deadline, the Auction Agent shall deem a Hold Order
     to have been submitted on behalf of such Existing Owner covering the
     principal amount of Outstanding Auction Rate Notes owned by such Existing
     Owner and not subject to an Order submitted to the Auction Agent.

            (D)  Neither the Issuer, the Indenture Trustee nor the Auction Agent
     shall be responsible for any failure of a Broker-Dealer to submit an Order
     to the Auction Agent on behalf of any Existing Owner or Potential Owner.

            (E)  If any Existing Owner submits through a Broker-Dealer to the
     Auction Agent one or more Orders covering in the aggregate more than the
     principal amount of Outstanding Auction Rate Notes owned by such Existing
     Owner, such Orders shall be considered valid as follows and in the
     following order of priority:

                                       13
<Page>

                 (1)  All Hold Orders shall be considered valid, but only up to
            the aggregate principal amount of Outstanding Auction Rate Notes
            owned by such Existing Owner, and if the aggregate principal amount
            of Auction Rate Notes subject to such Hold Orders exceeds the
            aggregate principal amount of Auction Rate Notes owned by such
            Existing Owner, the aggregate principal amount of Auction Rate Notes
            subject to each such Hold Order shall be reduced pro rata so that
            the aggregate principal amount of Auction Rate Notes subject to such
            Hold Order equals the aggregate principal amount of Outstanding
            Auction Rate Notes owned by such Existing Owner.

                 (2)  a.   Any Bid shall be considered valid up to an amount
            equal to the excess of the principal amount of Outstanding Auction
            Rate Notes owned by such Existing Owner over the aggregate principal
            amount of Auction Rate Notes subject to any Hold Order referred to
            in clause (A) of this paragraph (ii);

                      b.   subject to subclause (1) of this clause (E), if more
                 than one Bid with the same rate is submitted on behalf of such
                 Existing Owner and the aggregate principal amount of
                 Outstanding Auction Rate Notes subject to such Bids is greater
                 than such excess, such Bids shall be considered valid up to an
                 amount equal to such excess;

                      c.   subject to subclauses (1) and (2) of this clause (E),
                 if more than one Bid with different rates are submitted on
                 behalf of such Existing Owner, such Bids shall be considered
                 valid first in the ascending order of their respective rates
                 until the highest rate is reached at which such excess exists
                 and then at such rate up to the amount of such excess; and

                      d.   in any such event, the amount of Outstanding Auction
                 Rate Notes, if any, subject to Bids not valid under this clause
                 (E) shall be treated as the subject of a Bid by a Potential
                 Owner at the rate therein specified; and

                 (3)  All Sell Orders shall be considered valid up to an amount
            equal to the excess of the principal amount of Outstanding Auction
            Rate Notes owned by such Existing Owner over the aggregate principal
            amount of Auction Rate Notes subject to Hold Orders referred to in
            clause (1) of this paragraph (v) and valid Bids referred to in
            clause (2) of this paragraph (E).

            (F)  If more than one Bid for Auction Rate Notes is submitted on
     behalf of any Potential Owner, each Bid submitted shall be a separate Bid
     with the rate and principal amount therein specified.

            (G)  An Existing Owner that offers to purchase additional Auction
     Rate Notes is, for purposes of such offer, treated as a Potential Owner.

            (H)  Any Bid or Sell Order submitted by an Existing Owner covering
     an aggregate principal amount of Auction Rate Notes not equal to an
     Authorized Denomination shall be rejected and shall be deemed a Hold Order.
     Any Bid submitted by

                                       14
<Page>

     a Potential Owner covering an aggregate principal amount of Auction Rate
     Notes not equal to an Authorized Denomination shall be rejected.

            (I)  Any Bid specifying a rate higher than the applicable Maximum
     Rate will (1) be treated as a Sell Order if submitted by an Existing Owner
     and (2) not be accepted if submitted by a Potential Owner.

            (J)  Any Order submitted in an Auction by a Broker-Dealer to the
     Auction Agent prior to the Submission Deadline on any Auction Date shall be
     irrevocable.

     (iii)  (A) Not earlier than the Submission Deadline on each Auction Date,
the Auction Agent shall assemble all valid Orders submitted or deemed submitted
to it by the Broker-Dealers (each such Order as submitted or deemed submitted by
a Broker-Dealer being herein referred to individually as a "SUBMITTED HOLD
ORDER," a "SUBMITTED BID" or a "SUBMITTED SELL ORDER," as the case may be, or as
a "SUBMITTED ORDER," and collectively as "SUBMITTED HOLD ORDERS," "SUBMITTED
BIDS" or "SUBMITTED SELL ORDERS," as the case may be, or as "SUBMITTED ORDERS")
and shall determine:

                 (1)  the excess of the total principal amount of Outstanding
            Auction Rate Notes over the sum of the aggregate principal amount of
            Outstanding Auction Rate Notes subject to Submitted Hold Orders
            (such excess being herein referred to as the "AVAILABLE AUCTION RATE
            NOTES"), and

                 (2)  from the Submitted Orders whether:

                      a.   the aggregate principal amount of Outstanding Auction
                 Rate Notes subject to Submitted Bids by Potential Owners
                 specifying one or more rates equal to or lower than the
                 applicable Maximum Rate;

            exceeds or is equal to the sum of:

                      b.   the aggregate principal amount of Outstanding Auction
                 Rate Notes subject to Submitted Bids by Existing Owners
                 specifying one or more rates higher than the applicable Maximum
                 Rate; and

                      c.   the aggregate principal amount of Outstanding Auction
                 Rate Notes subject to Submitted Sell Orders;

            (in the event such excess or such equality exists, other than
            because all of the Outstanding Auction Rate Notes are subject to
            Submitted Hold Orders, such Submitted Bids described in subclause a.
            above shall be referred to collectively as "SUFFICIENT BIDS"); and

                 (3)  if Sufficient Bids exist, the Bid Auction Rate, which
            shall be the lowest rate specified in such Submitted Bids such that
            if:

                      a.   (x) each Submitted Bid from Existing Owners
                 specifying such lowest rate and (y) all other Submitted Bids
                 from Existing Owners

                                       15
<Page>

                 specifying lower rates were rejected, thus entitling such
                 Existing Owners to continue to own the principal amount of
                 Auction Rate Notes subject to such Submitted Bids; and

                      b.   (x) each such Submitted Bid from Potential Owners
                 specifying such lowest rate and (y) all other Submitted Bids
                 from Potential Owners specifying lower rates were accepted;

            the result would be that such Existing Owners described in subclause
            a. above would continue to own an aggregate principal amount of
            Outstanding Auction Rate Notes which, when added to the aggregate
            principal amount of Outstanding Auction Rate Notes to be purchased
            by such Potential Owners described in SUBCLAUSE B. above, would
            equal not less than the Available Auction Rate Notes.

            (B)  Promptly after the Auction Agent has made the determinations
     pursuant to Section 2.02(a)(iii)(A) of this APPENDIX A-2, the Auction Agent
     shall advise the Indenture Trustee, the Broker-Dealers and the Issuer of
     the Student Loan Rate, Maximum Rate and the All Hold Rate and the
     components thereof on the Auction Date. Based on such determinations, the
     Auction Rate for the next succeeding Accrual Period will be established as
     follows:

                 (1)  if Sufficient Bids exist, that the Auction Rate for the
            next succeeding Auction Period shall be equal to the Bid Auction
            Rate so determined;

                 (2)  if Sufficient Bids do not exist (other than because all of
            the Outstanding Auction Rate Notes are subject to Submitted Hold
            Orders), that the Auction Rate for the next succeeding Auction
            Period shall be equal to the applicable Maximum Rate; or

                 (3)  if all Outstanding Auction Rate Notes are subject to
            Submitted Hold Orders, that the Auction Rate for the next succeeding
            Auction Period shall be equal to the applicable All Hold Rate.

            (C)  Promptly after the Auction Agent has determined the Auction
     Rate, the Auction Agent shall determine and advise the Indenture Trustee of
     the Auction Note Interest Rate, which rate shall be the least of (x) the
     Auction Rate, (y) the applicable Maximum Rate and (z) the Student Loan
     Rate.

     (iv)   Existing Owners shall continue to own the principal amount of
Auction Rate Notes that are subject to Submitted Hold Orders. If the Student
Loan Rate is equal to or greater than the Bid Auction Rate and if Sufficient
Bids have been received by the Auction Agent, the Bid Auction Rate will be the
Auction Note Interest Rate, and Submitted Bids and Submitted Sell Orders will be
accepted or rejected and the Auction Agent will take such other action as
described below in subparagraph (A).

     If the Maximum Rate is less than the Auction Rate, the Maximum Rate will be
the Auction Note Interest Rate. If the Auction Agent has not received Sufficient
Bids (other than because all of the Outstanding Auction Rate Notes are subject
to Submitted Hold Orders), the

                                       16
<Page>

Auction Note Interest Rate will be the applicable Maximum Rate. In any of the
cases described above, Submitted Orders will be accepted or rejected and the
Auction Agent will take such other action as described below in subparagraph
(B).

            (A)  If Sufficient Bids have been made and the Maximum Rate is equal
     to or greater than the Bid Auction Rate (in which case the Auction Note
     Interest Rate shall be the Bid Auction Rate), all Submitted Sell Orders
     shall be accepted and, subject to the provisions of clauses (4) and (5) of
     this Section 2.02(a)(iv), Submitted Bids shall be accepted or rejected as
     follows in the following order of priority, and all other Submitted Bids
     shall be rejected:

                 (1)  Existing Owners' Submitted Bids specifying any rate that
            is higher than the Auction Note Interest Rate shall be accepted,
            thus requiring each such Existing Owner to sell the aggregate
            principal amount of Auction Rate Notes subject to such Submitted
            Bids;

                 (2)  Existing Owners' Submitted Bids specifying any rate that
            is lower than the Auction Note Interest Rate shall be rejected, thus
            entitling each such Existing Owner to continue to own the aggregate
            principal amount of Auction Rate Notes subject to such Submitted
            Bids;

                 (3)  Potential Owners' Submitted Bids specifying any rate that
            is lower than the Auction Note Interest Rate shall be accepted;

                 (4)  Each Existing Owners' Submitted Bid specifying a rate that
            is equal to the Auction Note Interest Rate shall be rejected, thus
            entitling such Existing Owner to continue to own the aggregate
            principal amount of Auction Rate Notes subject to such Submitted
            Bid, unless the aggregate principal amount of Outstanding Auction
            Rate Notes subject to all such Submitted Bids shall be greater than
            the principal amount of Auction Rate Notes (the "REMAINING PRINCIPAL
            AMOUNT") equal to the excess of the Available Auction Rate Notes
            over the aggregate principal amount of Auction Rate Notes subject to
            Submitted Bids described in clauses (2) and (3) of this Section
            2.02(a)(iv)(A), in which event such Submitted Bid of such Existing
            Owner shall be rejected in part, and such Existing Owner shall be
            entitled to continue to own the principal amount of Auction Rate
            Notes subject to such Submitted Bid, but only in an amount equal to
            the aggregate principal amount of Auction Rate Notes obtained by
            multiplying the remaining principal amount by a fraction, the
            numerator of which shall be the principal amount of Outstanding
            Auction Rate Notes owned by such Existing Owner subject to such
            Submitted Bid and the denominator of which shall be the sum of the
            principal amount of Outstanding Auction Rate Notes subject to such
            Submitted Bids made by all such Existing Owners that specified a
            rate equal to the Auction Note Interest Rate, subject to the
            provisions of Section 2.02(a)(iv)(D) of this APPENDIX A-2; and

                 (5)  Each Potential Owner's Submitted Bid specifying a rate
            that is equal to the Auction Note Interest Rate shall be accepted,
            but only in an amount

                                       17
<Page>

            equal to the principal amount of Auction Rate Notes obtained by
            multiplying the excess of the aggregate principal amount of
            Available Auction Rate Notes over the aggregate principal amount of
            Auction Rate Notes subject to Submitted Bids described in clauses
            (2), (3) and (4) of this Section 2.02(a)(iv)(A) by a fraction the
            numerator of which shall be the aggregate principal amount of
            Outstanding Auction Rate Notes subject to such Submitted Bid and the
            denominator of which shall be the sum of the principal amount of
            Outstanding Auction Rate Notes subject to Submitted Bids made by all
            such Potential Owners that specified a rate equal to the Auction
            Note Interest Rate, subject to the provisions of Section
            2.02(a)(iv)(D) of this APPENDIX A-2.

            (B)  If Sufficient Bids have not been made (other than because all
     of the Outstanding Auction Rate Notes are subject to submitted Hold
     Orders), or if the Maximum Rate is less than the Bid Auction Rate (in which
     case the Auction Note Interest Rate shall be the Maximum Rate), subject to
     the provisions of Section 2.02(a)(iv)(D) of this APPENDIX A-2, Submitted
     Orders shall be accepted or rejected as follows in the following order of
     priority and all other Submitted Bids shall be rejected:

                 (1)  Existing Owners' Submitted Bids specifying any rate that
            is equal to or lower than the Auction Note Interest Rate shall be
            rejected, thus entitling such Existing Owners to continue to own the
            aggregate principal amount of Auction Rate Notes subject to such
            Submitted Bids;

                 (2)  Potential Owners' Submitted Bids specifying (x) any rate
            that is equal to or lower than the Auction Note Interest Rate shall
            be accepted and (y) any rate that is higher than the Auction Note
            Interest Rate shall be rejected; and

                 (3)  each Existing Owner's Submitted Bid specifying any rate
            that is higher than the Auction Note Interest Rate and the Submitted
            Sell Order of each Existing Owner shall be accepted, thus entitling
            each Existing Owner that submitted any such Submitted Bid or
            Submitted Sell Order to sell the Auction Rate Notes subject to such
            Submitted Bid or Submitted Sell Order, but in both cases only in an
            amount equal to the aggregate principal amount of Auction Rate Notes
            obtained by multiplying the aggregate principal amount of Auction
            Rate Notes subject to Submitted Bids described in clause (2)(x) of
            this Section 2.02(a)(iv)(B) by a fraction the numerator of which
            shall be the aggregate principal amount of Outstanding Auction Rate
            Notes owned by such Existing Owner subject to such submitted Bid or
            Submitted Sell Order and the denominator of which shall be the
            aggregate principal amount of Outstanding Auction Rate Notes subject
            to all such Submitted Bids and Submitted Sell Orders.

            (C)  If all Auction Rate Notes are subject to Submitted Hold Orders,
     all Submitted Bids shall be rejected.

            (D)  If, as a result of the procedures described in paragraph (A) or
     (B) of this Section 2.02(a)(iv), any Existing Owner would be entitled or
     required to sell, or any Potential Owner would be entitled or required to
     purchase, a principal amount of Auction

                                       18
<Page>

     Rate Notes that is not equal to an Authorized Denomination, the Auction
     Agent shall, in such manner as in its sole discretion it shall determine,
     round up or down the principal amount of Auction Rate Notes to be purchased
     or sold by any Existing Owner or Potential Owner so that the principal
     amount of Auction Rate Notes purchased or sold by each Existing Owner or
     Potential Owner shall be equal to an Authorized Denomination.

            (E)  If, as a result of the procedures described in paragraph (B) of
     this Section 2.02(a)(iv), any Potential Owner would be entitled or required
     to purchase less than an Authorized Denomination of Auction Rate Notes, the
     Auction Agent shall, in such manner as in its sole discretion it shall
     determine, allocate Auction Rate Notes for purchase among Potential Owners
     so that only Auction Rate Notes in Authorized Denominations are purchased
     by any Potential Owner, even if such allocation results in one or more of
     such Potential Owners not purchasing any Auction Rate Notes.

     (v)    Based on the result of each Auction, the Auction Agent shall
determine the aggregate principal amount of Auction Rate Notes to be purchased
and the aggregate principal amount of Auction Rate Notes to be sold by Potential
Owners and Existing Owners on whose behalf each Broker-Dealer submitted Bids or
Sell Orders and, with respect to each Broker-Dealer, to the extent that such
aggregate principal amount of Auction Rate Notes to be sold differs from such
aggregate principal amount of Auction Rate Notes to be purchased, determine to
which other Broker-Dealer or Broker-Dealers acting for one or more purchasers
such Broker-Dealer shall deliver, or from which other Broker-Dealer or
Broker-Dealers acting for one or more sellers such Broker-Dealer shall receive,
as the case may be, Auction Rate Notes.

     (vi)   Any calculation by the Auction Agent or the Indenture Trustee, as
applicable, of the Auction Note Interest Rate, the Maximum Rate, the All Hold
Rate, the Student Loan Rate and the Non-Payment Rate shall, in the absence of
manifest error, be binding on all other parties.

     (vii)  Notwithstanding anything in this Appendix A-2 to the contrary, (A)
no Auction for the Auction Rate Notes for an Auction Period of less than 180
days will be held on any Auction Date hereunder on which there are insufficient
moneys in the Collection Account to pay, or otherwise held by the Indenture
Trustee under the Indenture and available to pay, the principal of and interest
due on the Auction Rate Notes on the Distribution Date immediately following
such Auction Date, and (B) no Auction will be held on any Auction Date hereunder
during the continuance of a Payment Default. The Indenture Trustee shall
promptly notify the Auction Agent of any such occurrence.

     (b)    APPLICATION OF INTEREST PAYMENTS FOR THE AUCTION RATE NOTES.

     (i)    The Indenture Trustee shall determine not later than 2:00 p.m.,
eastern time, on the Business Day next succeeding a Distribution Date, whether a
Payment Default has occurred. If a Payment Default has occurred, the Indenture
Trustee shall, not later than 2:15 p.m., eastern time, on such Business Day,
send a notice thereof in substantially the form of EXHIBIT C attached hereto to
the Auction Agent by telecopy or similar means and, if such Payment Default is
cured, the Indenture Trustee shall immediately send a notice in substantially
the form of EXHIBIT D attached hereto to the Auction Agent by telecopy or
similar means.

                                       19
<Page>

     (ii)   Not later than 2:00 p.m., eastern time, on each anniversary of the
initial Distribution Date, the Indenture Trustee shall pay to the Auction Agent,
in immediately available funds out of amounts in the Collection Account, an
amount equal to the Auction Agent Fee as set forth in the Auction Agent
Agreement. Not later than 2:00 p.m., eastern time, on each Auction Date, the
Indenture Trustee shall pay to the Auction Agent, in immediately available funds
out of amounts in the Collection Account, an amount equal to the Broker-Dealer
Fee as calculated in the Auction Agent Agreement. The Indenture Trustee shall,
from time to time at the request of the Auction Agent and at the direction of an
Authorized Officer, reimburse the Auction Agent for its reasonable expenses as
provided in the Auction Agent Agreement, such expenses to be paid out of amounts
in the Collection Account.

     (c)    CALCULATION OF MAXIMUM RATE, ALL HOLD RATE, STUDENT LOAN RATE,
APPLICABLE LIBOR RATE, AND NON-PAYMENT RATE. The Auction Agent shall calculate
the applicable Maximum Rate, Student Loan Rate, Applicable LIBOR Rate, and All
Hold Rate, as the case may be, on each Auction Date and shall notify the
Indenture Trustee and the Broker-Dealers of the applicable Maximum Rate, Student
Loan Rate, Applicable LIBOR Rate, and All Hold Rate, as the case may be, as
provided in the Auction Agent Agreement; PROVIDED, that if the ownership of the
Auction Rate Notes is no longer maintained as Book-Entry Notes, or if a Payment
Default has occurred, then the Indenture Trustee shall determine the applicable
Maximum Rate, Student Loan Rate, Applicable LIBOR Rate, All Hold Rate and
Non-Payment Rate for each such Accrual Period. If the ownership of the Auction
Rate Notes is no longer maintained as Book-Entry Notes by the Clearing Agency,
the Indenture Trustee shall calculate the applicable Maximum Rate and the
Student Loan Rate on the Business Day immediately preceding the first day of
each Auction Period after the delivery of certificates representing the Auction
Rate Notes pursuant to the Indenture. If a Payment Default shall have occurred,
the Indenture Trustee shall calculate the Non-Payment Rate on the Interest Rate
Determination Date for (i) each Accrual Period commencing after the occurrence
and during the continuance of such Payment Default and (ii) any Accrual Period
commencing less than two Business Days after the cure of any Payment Default.
The determination by the Indenture Trustee or the Auction Agent, as the case may
be, of the applicable Maximum Rate, Student Loan Rate, Applicable LIBOR Rate,
All Hold Rate and Non-Payment Rate shall (in the absence of manifest error) be
final and binding upon all parties. If calculated or determined by the Auction
Agent, the Auction Agent shall promptly advise the Indenture Trustee of the
applicable Maximum Rate, Student Loan Rate, Applicable LIBOR Rate, and All Hold
Rate.

     (d)    NOTIFICATION OF RATES, AMOUNTS AND DISTRIBUTION DATES.

     (i)    By 12:00 noon, eastern time, on the Business Day following each
Record Date, the Indenture Trustee shall determine the aggregate amounts of
interest distributable on the next succeeding Distribution Date to the
beneficial owners of Auction Rate Notes.

     (ii)   At least four days prior to any Distribution Date, the Indenture
Trustee shall:

            (A)  confirm with the Auction Agent, so long as no Payment Default
     has occurred and is continuing and the ownership of the Auction Rate Notes
     is maintained as Book-Entry Notes by the applicable Clearing Agency, (1)
     the date of such next

                                       20
<Page>

     Distribution Date and (2) the amount payable to the Auction Agent on the
     Auction Date pursuant to Section 2.02(b)(ii) of this Appendix A-2; and

            (B)  advise the applicable Clearing Agency, so long as the ownership
     of the Auction Rate Notes is maintained as Book-Entry Notes by the
     applicable Clearing Agency, upon request, of the aggregate amount of
     interest distributable on such next Distribution Date to the beneficial
     owners of each Class of the Auction Rate Notes.

     If any day scheduled to be an Distribution Date shall be changed after the
Indenture Trustee shall have given the notice or confirmation referred to in
clause (i) of the preceding sentence, the Indenture Trustee shall, not later
than 11:15 a.m., eastern time, on the Business Day next preceding the earlier of
the new Distribution Date or the old Distribution Date, by such means as the
Indenture Trustee deems practicable, give notice of such change to the Auction
Agent, so long as no Payment Default has occurred and is continuing and the
ownership of the Auction Rate Notes is maintained as Book-Entry Notes by the
applicable Clearing Agency.

     (e)    AUCTION AGENT.

     (i)    The Bank of New York is hereby appointed as Initial Auction Agent to
serve as agent for the Issuer in connection with Auctions. The Indenture Trustee
and the Issuer will, and the Indenture Trustee is hereby directed to, enter into
the Initial Auction Agent Agreement with The Bank of New York, as the Initial
Auction Agent. Any Substitute Auction Agent shall be (A) a bank, national
banking association or trust company duly organized under the laws of the United
States of America or any state or territory thereof having its principal place
of business in the Borough of Manhattan, New York, or such other location as
approved by the Indenture Trustee in writing and having a combined capital stock
or surplus of at least $50,000,000, or (B) a member of the National Association
of Securities Dealers, Inc., having a capitalization of at least $50,000,000,
and, in either case, authorized by law to perform all the duties imposed upon it
hereunder and under the Auction Agent Agreement. The Auction Agent may at any
time resign and be discharged of the duties and obligations created by this
APPENDIX A-2 by giving at least 90 days' notice to the Indenture Trustee, each
Broker-Dealer and the Issuer. The Auction Agent may be removed at any time by
the Indenture Trustee upon the written direction of an Authorized Officer or by
the holders of a majority of the aggregate principal amount of the Auction Rate
Notes then Outstanding, and if by such Noteholders, by an instrument signed by
such Noteholders or their attorneys and filed with the Auction Agent, the Issuer
and the Indenture Trustee upon at least 90 days' written notice. Neither
resignation nor removal of the Auction Agent pursuant to the preceding two
sentences shall be effective until and unless a Substitute Auction Agent has
been appointed and has accepted such appointment. If required by the Issuer, a
Substitute Auction Agent Agreement shall be entered into with a Substitute
Auction Agent. Notwithstanding the foregoing, the Auction Agent may terminate
the Auction Agent Agreement if, within 25 days after notifying the Indenture
Trustee, each Broker-Dealer and the Issuer in writing that it has not received
payment of any Auction Agent Fee due it in accordance with the terms of the
Auction Agent Agreement, the Auction Agent does not receive such payment.

     (ii)   If the Auction Agent shall resign or be removed or be dissolved, or
if the property or affairs of the Auction Agent shall be taken under the control
of any state or federal court or

                                       21
<Page>

administrative body because of bankruptcy or insolvency, or for any other
reason, the Indenture Trustee at the direction of an Authorized Officer, shall
use its best efforts to appoint a Substitute Auction Agent.

     (iii)  The Auction Agent is acting as agent for the Issuer in connection
with Auctions. In the absence of bad faith, negligent failure to act or
negligence on its part, the Auction Agent shall not be liable for any action
taken, suffered or omitted or any error of judgment made by it in the
performance of its duties under the Auction Agent Agreement and shall not be
liable for any error of judgment made in good faith unless the Auction Agent
shall have been negligent in ascertaining (or failing to ascertain) the
pertinent facts.

     (f)    BROKER-DEALER.

     (i)    The Auction Agent will enter into Broker-Dealer Agreements with
Salomon Smith Barney Inc., Credit Suisse First Boston Corporation and Lehman
Brothers Inc. as the initial Broker-Dealers. An Authorized Officer of the
Administrator, on behalf of the Issuer may, from time to time, approve one or
more additional persons to serve as a Broker-Dealer under the Broker-Dealer
Agreements and shall be responsible for providing such Broker-Dealer Agreements
to the Indenture Trustee and the Auction Agent.

     (ii)   Any Broker-Dealer may be removed at any time, at the request of an
Authorized Officer of the Administrator, on behalf of the Issuer, but there
shall, at all times, be at least one Broker-Dealer appointed and acting as such.

     (g)    CHANGES IN AUCTION PERIOD OR PERIODS AND CERTAIN PERCENTAGES.

     (i)    While any of the Auction Rate Notes are Outstanding, the Issuer may,
at the direction of the Broker-Dealers, from time to time, change the length of
one or more Auction Periods (an "AUCTION PERIOD ADJUSTMENT"), in order to
conform with then current market practice with respect to similar securities or
to accommodate economic and financial factors that may affect or be relevant to
the length of the Auction Period and the interest rate borne by the Auction Rate
Notes. The Issuer shall not initiate an Auction Period Adjustment unless it
shall have received the written direction of the applicable Broker-Dealer, not
later than nine days prior to the Auction Date for such Auction Period. The
Broker-Dealer shall initiate the Auction Period Adjustment by giving written
notice by Issuer Order to the Indenture Trustee, the Auction Agent, the
applicable Broker-Dealers, each Rating Agency and the applicable Clearing Agency
in substantially the form of, or containing substantially the information
contained in, Exhibit E attached hereto at least 10 days prior to the Auction
Date for such Auction Period.

     (ii)   Any such adjusted Auction Period shall not be less than 7 days nor
more than 270 days.

     (iii)  An Auction Period Adjustment shall take effect only if (A) the
Indenture Trustee and the Auction Agent receive, by 11:00 a.m., eastern time, on
the Business Day before the Auction Date for the first such Auction Period, an
Issuer Certificate in substantially the form attached as, or containing
substantially the same information contained in, EXHIBIT F attached hereto,
authorizing the Auction Period Adjustment specified in such certificate along
with a copy of the written direction of the applicable Broker-Dealer and, (B)
Sufficient Bids exist as of the

                                       22
<Page>

Auction on the Auction Date for such first Auction Period. If the condition
referred to in (A) above is not met, the applicable Auction Note Interest Rate
for the next Auction Period shall be determined pursuant to the above provisions
of this Section 2.02 and the Auction Period shall be the Auction Period
determined without reference to the proposed change. If the condition referred
to in (A) is met but the condition referred in (B) above is not met, the
applicable Auction Note Interest Rate for the next Auction Period shall be the
applicable Maximum Rate and the Auction Period shall be the Auction Period
determined without reference to the proposed change.

     In connection with any Auction Period Adjustment, the Auction Agent shall
provide such further notice to such parties as is specified in Section 2.03 of
the Auction Agent Agreement.

     (h)    CHANGES IN THE AUCTION DATE. The applicable Broker-Dealer, and, if
applicable, upon receipt of the opinion of counsel as required below, may
specify a different Auction Date (but in no event more than five Business Days
earlier) than the Auction Date that would otherwise be determined in accordance
with the definition of "Auction Date" in Section 1.01 of this Appendix A-2 with
respect to one or more specified Auction Periods in order to conform with then
current market practice with respect to similar securities or to accommodate
economic and financial factors that may affect or be relevant to the day of the
week constituting an Auction Date and the interest rate borne on the Auction
Rate Notes. The applicable Broker-Dealer shall deliver a written direction to
such change in the length of the Auction Date to the Issuer at least 14 days
prior to the effective date of such change. If the Issuer shall have delivered
such written direction of the applicable Broker-Dealer, such Broker-Dealer shall
provide notice of its determination to specify an earlier Auction Date for one
or more Auction Periods by means of a written notice delivered at least 10 days
prior to the proposed changed Auction Date to the Indenture Trustee, the Auction
Agent, the Issuer, each Rating Agency and the Clearing Agency. Such notice shall
be substantially in the form of, or contain substantially the information
contained in, Exhibit G attached hereto.

     In connection with any change described in this Section 2.02(h), the
Auction Agent shall provide such further notice to such parties as is specified
in Section 2.03 of the Auction Agent Agreement.

     Section 2.03 ADDITIONAL PROVISIONS REGARDING THE INTEREST RATES ON THE
AUCTION RATE NOTES. The determination of a Variable Rate by the Auction Agent or
any other Person pursuant to the provisions of the applicable Section of this
Article II shall be conclusive and binding on the Noteholders of the Auction
Rate Notes to which such Variable Rate applies, and the Issuer and the Indenture
Trustee may rely thereon for all purposes.

     In no event shall the cumulative amount of interest paid or payable on the
Auction Rate Notes (including interest calculated as provided herein, plus any
other amounts that constitute interest on the Auction Rate Notes under
applicable law, which are contracted for, charged, reserved, taken or received
pursuant to the Auction Rate Notes or related documents) calculated from the
Closing Date through any subsequent day during the term of the Auction Rate
Notes or otherwise prior to payment in full of the Auction Rate Notes exceed the
amount permitted by applicable law. If the applicable law is ever judicially
interpreted so as to render usurious any amount called for under the Auction
Rate Notes or related documents or otherwise contracted for, charged, reserved,
taken or received in connection with the Auction Rate Notes, or if the

                                       23
<Page>

redemption or acceleration of the maturity of the Auction Rate Notes results in
payment to or receipt by the Noteholder or any former Noteholder of the Auction
Rate Notes of any interest in excess of that permitted by applicable law, then,
notwithstanding any provision of the Auction Rate Notes or related documents to
the contrary, all excess amounts theretofore paid or received with respect to
the Auction Rate Notes shall be credited on the principal balance of the Auction
Rate Notes (or, if the Auction Rate Notes have been paid or would thereby be
paid in full, refunded by the recipient thereof), and the provisions of the
Auction Rate Notes and related documents shall automatically and immediately be
deemed reformed and the amounts thereafter collectible hereunder and thereunder
reduced, without the necessity of the execution of any new document, so as to
comply with the applicable law, but so as to permit the recovery of the fullest
amount otherwise called for under the Auction Rate Notes and under the related
documents.

                                       24
<Page>

                                                                      SCHEDULE A
                                                                TO THE INDENTURE

                         SCHEDULE OF TRUST STUDENT LOANS

                       [See Schedule A to the Bill of Sale
                      (Attachment B to the Sale Agreement)]

                                       25
<Page>

                                                                      SCHEDULE B
                                                                TO THE INDENTURE

                      LOCATION OF TRUST STUDENT LOAN FILES

                  [See Attachment B to the Servicing Agreement]

                                       26
<Page>

                                                                     EXHIBIT A-1
                                                                TO THE INDENTURE

                            [FORM OF CLASS A-1 NOTE]

                       SEE REVERSE FOR CERTAIN DEFINITIONS

            Unless this Note is presented by an authorized representative of The
Depository Trust Company, a New York corporation ("DTC"), to the Issuer (as
defined below) or its agent for registration of transfer, exchange or payment,
and any Note issued is registered in the name of Cede & Co. or in such other
name as is requested by an authorized representative of DTC (and any payment is
made to Cede & Co. or to such other entity as is requested by an authorized
representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
hereof, Cede & Co., has an interest herein.

            THE PRINCIPAL OF THIS NOTE IS PAYABLE IN INSTALLMENTS AS SET FORTH
HEREIN. ACCORDINGLY, THE OUTSTANDING PRINCIPAL AMOUNT OF THIS NOTE AT ANY TIME
MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. THIS NOTE IS NOT
GUARANTEED OR INSURED BY ANY GOVERNMENTAL AGENCY.

NUMBER                                                    [Note Face Amount]
R-__                                                      CUSIP NO.  78442G EM4
                                                          ISIN No. US78442G EM42

                                        1
<Page>

                          SLM STUDENT LOAN TRUST 2002-7

                FLOATING RATE CLASS A-1 STUDENT LOAN-BACKED NOTES

            SLM Student Loan Trust 2002-7, a statutory trust organized and
existing under the laws of the State of Delaware (herein referred to as the
"Issuer"), for value received, hereby promises to pay to The Bank of New York
(Nominees) Limited, or registered assigns, the principal sum of [Note Face
Amount] DOLLARS payable on each Distribution Date in an amount equal to the
result obtained by multiplying (i) a fraction the numerator of which is [Note
Face Amount] and the denominator of which is $201,470,000 by (ii) the aggregate
amount, if any, payable to Class A-1 Noteholders on such Distribution Date in
respect of principal of the Notes pursuant to Section 3.1 of the Indenture dated
as of November 1, 2002, among the Issuer, Chase Manhattan Bank USA, National
Association, a Delaware banking corporation, as Eligible Lender Trustee on
behalf of the Issuer, and The Bank of New York, a New York banking corporation,
as Indenture Trustee (the "Indenture Trustee") (capitalized terms used but not
defined herein being defined in APPENDIX A-1 and APPENDIX A-2 to the Indenture,
which also contains rules as to usage that shall be applicable herein);
PROVIDED, HOWEVER, that the entire unpaid principal amount of this Note shall be
due and payable on the March 2010 Distribution Date (the "Class A-1 Maturity
Date").

            The Issuer shall pay interest on this Note at the rate per annum
equal to the Class A-1 Rate (as defined on the reverse hereof), on each
Distribution Date until the principal of this Note is paid or made available for
payment, on the principal amount of this Note outstanding on the preceding
Distribution Date (after giving effect to all payments of principal made on the
preceding Distribution Date), subject to certain limitations contained in
Section 3.1 of the Indenture. Interest on this Note shall accrue from and
including the preceding Distribution Date (or, in the case of the first Accrual
Period, the Closing Date) to but excluding the following Distribution Date (each
an "Accrual Period"). Interest shall be calculated on the basis of the actual
number of days elapsed in each Accrual Period divided by 360. Such principal of
and interest on this Note shall be paid in the manner specified on the reverse
hereof.

            The principal of and interest on this Note are payable in such coin
or currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts. All payments made by the Issuer
with respect to this Note shall be applied first to interest due and payable on
this Note as provided above and then to the unpaid principal of this Note.

            Reference is made to the further provisions of this Note set forth
on the reverse hereof, which shall have the same effect as though fully set
forth on the face of this Note.

            Unless the certificate of authentication hereon has been executed by
the Indenture Trustee whose name appears below by manual signature, this Note
shall not be entitled to any benefit under the Indenture referred to on the
reverse hereof, or be valid or obligatory for any purpose.

                                        2
<Page>

            IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly
executed, manually or in facsimile, as of the date set forth below.

                                           SLM STUDENT LOAN TRUST 2002-7

                                           By CHASE MANHATTAN BANK USA, NATIONAL
                                                ASSOCIATION, not in its
                                                individual capacity but solely
                                                as Eligible Lender Trustee under
                                                the Trust Agreement,

                                                By:
                                                    ----------------------------
                                                       Authorized Signatory

Date:  November 26, 2002


                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

            This is one of the Notes designated above and referred to in the
within-mentioned Indenture.

                                                THE BANK OF NEW YORK,
                                                not in its individual capacity
                                                but solely as Indenture Trustee,


                                                By:
                                                    ----------------------------
                                                       Authorized Signatory

Date:  November 26, 2002

                                        3
<Page>

                                [REVERSE OF NOTE]

            This Note is one of a duly authorized issue of Notes of the Issuer,
designated as its Floating Rate Class A-1 Student Loan-Backed Notes (the "Class
A-1 Notes"), which, together with the Issuer's Floating Rate Class A-2 Student
Loan-Backed Notes (the "Class A-2 Notes"), Floating Rate Class A-3 Student
Loan-Backed Notes (the "Class A-3 Notes"), Floating Rate Class A-4 Student
Loan-Backed Notes (the "Class A-4 Notes"), Floating Rate Class A-5 Student
Loan-Backed Notes (the "Class A-5 Notes"), Auction Rate Class A-6 Student
Loan-Backed Notes (the "Class A-6 Notes"), Auction Rate Class A-7 Student
Loan-Backed Notes (the "Class A-7 Notes"), Auction Rate Class A-8 Student
Loan-Backed Notes (the "Class A-8 Notes"), Auction Rate Class A-9 Student
Loan-Backed Notes (the "Class A-9 Notes"), Auction Rate Class A-10 Student
Loan-Backed Notes (the "Class A-10 Notes"), Auction Rate Class A-11 Student
Loan-Backed Notes (the "Class A-11 Notes") and Auction Rate Class B Student
Loan-Backed Notes (the "Class B Notes" and, together with the Class A Notes, the
"Notes"), are issued under and secured by the Indenture, to which Indenture and
all indentures supplemental thereto reference is hereby made for a statement of
the respective rights and obligations thereunder of the Issuer, the Indenture
Trustee and the Noteholders. The Notes are subject to all terms of the
Indenture.

            The Class A-1 Notes are and will be equally and ratably secured by
the Collateral pledged as security therefor as provided in the Indenture. The
Class A-1 Notes are prior in order of principal payment to the Class A-2, Class
A-3, Class A-4, Class A-5 Notes, Class A Auction Rate Notes and Class B Notes
and senior to the Class B Notes as and to the extent provided in the Indenture.

            Principal of the Class A-1 Notes shall be payable on each
Distribution Date in an amount described on the face hereof. "Distribution Date"
means the 15th day of each March, June, September and December or, if any such
date is not a Business Day, the next succeeding Business Day, commencing March
2003.

            As described on the face hereof, the entire unpaid principal amount
of this Note shall be due and payable on the Class A-1 Maturity Date.
Notwithstanding the foregoing, the entire unpaid principal amount of the Notes
shall be due and payable on the date on which (i) an Event of Default shall have
occurred and be continuing and (ii) the Indenture Trustee or the Noteholders
representing not less than a majority of the Outstanding Amount of the Notes
shall have declared the Notes to be immediately due and payable in the manner
provided in Section 5.2 of the Indenture. All principal payments on the Class
A-1 Notes shall be made pro rata to the Noteholders entitled thereto.

            Interest on the Class A-1 Notes shall be payable on each
Distribution Date on the principal amount outstanding of the Class A-1 Notes
until the principal amount thereof is paid in full, at a rate per annum equal to
the Class A-1 Rate. The "Class A-1 Rate" for each Accrual Period shall be equal
to Three-Month LIBOR as determined on the second Business Day before the
beginning of that Accrual Period plus 0.00%.

            Payments of interest on this Note on each Distribution Date,
together with the installment of principal, if any, to the extent not in full
payment of this Note, shall be made by

                                        4
<Page>

check mailed to the Person whose name appears as the Registered Holder of this
Note (or one or more Predecessor Notes) on the Note Register on the Record Date,
except that with respect to Notes registered on the Record Date in the name of
the nominee of the Clearing Agency, unless Definitive Notes have been issued
(initially, such nominee to be Cede & Co.), payments shall be made by wire
transfer in immediately available funds to the account designated by such
nominee. Such checks shall be mailed to the Person entitled thereto at the
address of such Person as it appears on the Note Register as of the applicable
Record Date without requiring that this Note be submitted for notation of
payment, and the mailing of such check shall constitute payment of the amount
thereof regardless of whether such check is returned undelivered. Any reduction
in the principal amount of this Note (or any one or more Predecessor Notes)
effected by any payments made on any Distribution Date shall be binding upon all
future Noteholders of this Note and of any Note issued upon the registration of
transfer hereof or in exchange hereof or in lieu hereof, whether or not noted
hereon. If funds are expected to be available, as provided in the Indenture, for
payment in full of the then remaining unpaid principal amount of this Note on a
Distribution Date, then the Indenture Trustee, in the name of and on behalf of
the Issuer, shall notify the Person who was the Noteholder hereof as of the
preceding Record Date by notice mailed no later than five days prior to such
Distribution Date and the amount then due and payable shall be payable only upon
presentation and surrender of this Note at the Indenture Trustee's Corporate
Trust Office or at the office of the Indenture Trustee's agent appointed for
such purposes located in the Borough of Manhattan, The City of New York.

            The Issuer shall pay interest on overdue installments of interest on
this Note at the Class A-1 Rate to the extent lawful.

            As provided in the Indenture and subject to certain limitations set
forth therein, the transfer of this Note may be registered on the Note Register
upon surrender of this Note for registration of transfer at the office or agency
designated by the Issuer pursuant to the Indenture, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Indenture Trustee duly executed by, the Noteholder hereof or his attorney duly
authorized in writing, with such signature guaranteed by an "eligible guarantor
institution" meeting the requirements of the Note Registrar, which requirements
include membership or participation in Securities Transfer Agent's Medallion
Program ("STAMP") or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP
(all in accordance with the Exchange Act), and such other documents as the
Indenture Trustee may require, and thereupon one or more new Notes of authorized
denominations and in the same aggregate principal amount shall be issued to the
designated transferee or transferees. No service charge will be charged for any
registration of transfer or exchange of this Note, but the transferor may be
required to pay a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection with any such registration of transfer or
exchange.

            Each Noteholder or Note Owner, by acceptance of a Note or, in the
case of a Note Owner, a beneficial interest in the Note, covenants and agrees
that no recourse may be taken, directly or indirectly, with respect to the
obligations of the Issuer or the Indenture Trustee on the Notes or under the
Indenture or any certificate or other writing delivered in connection therewith,
against (i) the Indenture Trustee or the Eligible Lender Trustee in its
individual capacity, (ii) any owner of a beneficial interest in the Issuer or
(iii) any partner, owner, beneficiary, agent, officer, director or employee of
the Indenture Trustee or the Eligible Lender Trustee in its individual

                                        5
<Page>

capacity, any holder or owner of a beneficial interest in the Issuer, the
Eligible Lender Trustee or the Indenture Trustee or of any successor or assign
thereof in its individual capacity, except as any such Person may have expressly
agreed (it being understood that the Indenture Trustee and the Eligible Lender
Trustee have no such obligations in their individual capacity) and except that
any such partner, owner or beneficiary shall be fully liable, to the extent
provided by applicable law, for any unpaid consideration for stock, unpaid
capital contribution or failure to pay any installment or call owing to such
entity.

            Each Noteholder or Note Owner, by acceptance of a Note or, in the
case of a Note Owner, a beneficial interest in a Note, covenants and agrees that
by accepting the benefits of the Indenture such Noteholder or Note Owner will
not at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy,
reorganization, arrangement, insolvency, receivership or liquidation proceedings
or other proceedings under any United States Federal or state bankruptcy or
similar law in connection with any obligations relating to the Notes, the
Indenture or the other Basic Documents.

            Prior to the due presentment for registration of transfer of this
Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the
Indenture Trustee may treat the Person in whose name this Note (as of the day of
determination or as of such other date as may be specified in the Indenture) is
registered as the owner hereof for all purposes whether or not this Note be
overdue, and neither the Issuer, the Indenture Trustee nor any such agent shall
be affected by notice to the contrary.

            The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Issuer and the rights of the Noteholders under the Indenture at any time by the
Issuer with the consent of the Noteholders representing a majority of the
Outstanding Amount of all Notes at the time outstanding. The Indenture also
contains provisions permitting the Noteholders representing specified
percentages of the Outstanding Amount of the Notes, on behalf of all the
Noteholders, to waive compliance by the Issuer with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences.
Any such consent or waiver by the holder of this Note (or any one of more
Predecessor Notes) shall be conclusive and binding upon such holder and upon all
future holders of this Note and of any Note issued upon registration of transfer
hereof or in exchange hereof or in lieu hereof whether or not notation of such
consent or waiver is made upon this Note. The Indenture also permits the
Indenture Trustee to amend or waive certain terms and conditions set forth in
the Indenture without the consent of holders of the Notes issued thereunder.

            The term "Issuer" as used in this Note includes any successor to the
Issuer under the Indenture.

            The Issuer is permitted by the Indenture, under certain
circumstances, to merge or consolidate, subject to the rights of the Indenture
Trustee and the Noteholders under the Indenture.

            The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth.

                                        6
<Page>

            This Note shall be construed in accordance with the laws of the
State of New York, without reference to its conflict of law provisions, and the
obligations, rights and remedies of the parties hereunder and thereunder shall
be determined in accordance with such laws.

            No reference herein to the Indenture and no provision of this Note
or of the Indenture shall alter or impair the obligation of the Issuer, which is
absolute and unconditional, to pay the principal of and interest on this Note at
the times, place, and rate, and in the coin or currency, herein prescribed.

            Anything herein to the contrary notwithstanding, except as expressly
provided in the Basic Documents, neither The Bank of New York, in its individual
capacity, Chase Manhattan Bank USA, National Association in its individual
capacity, any owner of a beneficial interest in the Issuer, nor any of their
respective partners, beneficiaries, agents, officers, directors, employees or
successors or assigns shall be personally liable for, nor shall recourse be had
to any of them for, the payment of principal of or interest on, or performance
of, or omission to perform, any of the covenants, obligations or
indemnifications contained in this Note or the Indenture; it being expressly
understood that said covenants, obligations and indemnifications have been made
by the Eligible Lender Trustee for the sole purposes of binding the interests of
the Eligible Lender Trustee in the assets of the Issuer. The Noteholder of this
Note by the acceptance hereof agrees that, except as expressly provided in the
Basic Documents, in the case of an Event of Default under the Indenture, the
Noteholder shall have no claim against any of the foregoing for any deficiency,
loss or claim therefrom; PROVIDED, HOWEVER, that nothing contained herein shall
be taken to prevent recourse to, and enforcement against, the assets of the
Issuer for any and all liabilities, obligations and undertakings contained in
the Indenture or in this Note.

                                        7
<Page>

                                   ASSIGNMENT

Social Security or taxpayer I.D. or other identifying number of assignee

--------------------------------------------------------------------------------

            FOR VALUE RECEIVED, the undersigned hereby sells, assigns and
transfers unto

--------------------------------------------------------------------------------
                         (name and address of assignee)

the within Note and all rights thereunder, and hereby irrevocably constitutes
and appoints

--------------------------------------------------------------------------------
attorney, to transfer said Note on the books kept for registration thereof, with
full power of substitution in the premises.

Dated:
      -----------

                                                                              */
                                                      --------------------------
                                                           Signature Guaranteed:

                                                                              */
                                                      --------------------------

----------
*/   NOTICE: The signature to this assignment must correspond with the name of
the registered owner as it appears on the face of the within Note in every
particular, without alteration, enlargement or any change whatever. Such
signature must be guaranteed by an "eligible guarantor institution" meeting the
requirements of the Note Registrar, which requirements include membership or
participation in STAMP or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP,
all in accordance with the Securities Exchange Act of 1934, as amended.

                                        8
<Page>

                                                                     EXHIBIT A-2
                                                                TO THE INDENTURE

                            [FORM OF CLASS A-2 NOTE]

                       SEE REVERSE FOR CERTAIN DEFINITIONS

            Unless this Note is presented by an authorized representative of The
Depository Trust Company, a New York corporation ("DTC"), to the Issuer (as
defined below) or its agent for registration of transfer, exchange or payment,
and any Note issued is registered in the name of Cede & Co. or in such other
name as is requested by an authorized representative of DTC (and any payment is
made to Cede & Co. or to such other entity as is requested by an authorized
representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
hereof, Cede & Co., has an interest herein.

            THE PRINCIPAL OF THIS NOTE IS PAYABLE IN INSTALLMENTS AS SET FORTH
HEREIN. ACCORDINGLY, THE OUTSTANDING PRINCIPAL AMOUNT OF THIS NOTE AT ANY TIME
MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. THIS NOTE IS NOT
GUARANTEED OR INSURED BY ANY GOVERNMENTAL AGENCY.

NUMBER                                                    [Note Face Amount]
R-__                                                      CUSIP NO. 78442G EN2
                                                          ISIN No. US78442G EN25

                                        1
<Page>

                          SLM STUDENT LOAN TRUST 2002-7

                FLOATING RATE CLASS A-2 STUDENT LOAN-BACKED NOTES

            SLM Student Loan Trust 2002-7, a statutory trust organized and
existing under the laws of the State of Delaware (herein referred to as the
"Issuer"), for value received, hereby promises to pay to CEDE & CO., or
registered assigns, the principal sum of [Note Face Amount] DOLLARS payable on
each Distribution Date in an amount equal to the result obtained by multiplying
(i) a fraction the numerator of which is [Note Face Amount] and the denominator
of which is $229,400,000 by (ii) the aggregate amount, if any, payable to Class
A-2 Noteholders on such Distribution Date in respect of principal of the Notes
pursuant to Section 3.1 of the Indenture dated as of November 1, 2002, among the
Issuer, Chase Manhattan Bank USA, National Association, a Delaware banking
corporation, as Eligible Lender Trustee on behalf of the Issuer, and The Bank of
New York, , a New York banking corporation, as Indenture Trustee (the "Indenture
Trustee") (capitalized terms used but not defined herein being defined in
APPENDIX A-1 and APPENDIX A-2 to the Indenture, which also contains rules as to
usage that shall be applicable herein); PROVIDED, HOWEVER, that the entire
unpaid principal amount of this Note shall be due and payable on the June 2013
Distribution Date (the "Class A-2 Maturity Date").

            The Issuer shall pay interest on this Note at the rate per annum
equal to the Class A-2 Rate (as defined on the reverse hereof), on each
Distribution Date until the principal of this Note is paid or made available for
payment, on the principal amount of this Note outstanding on the preceding
Distribution Date (after giving effect to all payments of principal made on the
preceding Distribution Date), subject to certain limitations contained in
Section 3.1 of the Indenture. Interest on this Note shall accrue from and
including the preceding Distribution Date (or, in the case of the first Accrual
Period, the Closing Date) to but excluding the following Distribution Date (each
an "Accrual Period"). Interest shall be calculated on the basis of the actual
number of days elapsed in each Accrual Period divided by 360. Such principal of
and interest on this Note shall be paid in the manner specified on the reverse
hereof.

            The principal of and interest on this Note are payable in such coin
or currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts. All payments made by the Issuer
with respect to this Note shall be applied first to interest due and payable on
this Note as provided above and then to the unpaid principal of this Note.

            Reference is made to the further provisions of this Note set forth
on the reverse hereof, which shall have the same effect as though fully set
forth on the face of this Note.

            Unless the certificate of authentication hereon has been executed by
the Indenture Trustee whose name appears below by manual signature, this Note
shall not be entitled to any benefit under the Indenture referred to on the
reverse hereof, or be valid or obligatory for any purpose.

                                        2
<Page>

            IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly
executed, manually or in facsimile, as of the date set forth below.

                                           SLM STUDENT LOAN TRUST 2002-7

                                           By CHASE MANHATTAN BANK USA, NATIONAL
                                                ASSOCIATION, not in its
                                                individual capacity but solely
                                                as Eligible Lender Trustee under
                                                the Trust Agreement,

                                                By:
                                                    ----------------------------
                                                       Authorized Signatory

Date:  November 26, 2002


                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

            This is one of the Notes designated above and referred to in the
within-mentioned Indenture.

                                                THE BANK OF NEW YORK,
                                                not in its individual capacity
                                                but solely as Indenture Trustee,


                                                By:
                                                    ----------------------------
                                                       Authorized Signatory

Date:  November 26, 2002

                                        3
<Page>

                                [REVERSE OF NOTE]

            This Note is one of a duly authorized issue of Notes of the Issuer,
designated as its Floating Rate Class A-2 Student Loan-Backed Notes (the "Class
A-2 Notes"), which, together with the Issuer's Floating Rate Class A-1 Student
Loan-Backed Notes (the "Class A-1 Notes"), Floating Rate Class A-3 Student
Loan-Backed Notes (the "Class A-3 Notes"), Floating Rate Class A-4 Student
Loan-Backed Notes (the "Class A-4 Notes"), Floating Rate Class A-5 Student
Loan-Backed Notes (the "Class A-5 Notes"), Auction Rate Class A-6 Student
Loan-Backed Notes (the "Class A-6 Notes"), Auction Rate Class A-7 Student
Loan-Backed Notes (the "Class A-7 Notes"), Auction Rate Class A-8 Student
Loan-Backed Notes (the "Class A-8 Notes"), Auction Rate Class A-9 Student
Loan-Backed Notes (the "Class A-9 Notes"), Auction Rate Class A-10 Student
Loan-Backed Notes (the "Class A-10 Notes"), Auction Rate Class A-11 Student
Loan-Backed Notes (the "Class A-11 Notes") and Auction Rate Class B Student
Loan-Backed Notes (the "Class B Notes" and, together with the Class A Notes, the
"Notes") are issued under and secured by the Indenture, to which Indenture and
all indentures supplemental thereto reference is hereby made for a statement of
the respective rights and obligations thereunder of the Issuer, the Indenture
Trustee and the Noteholders. The Notes are subject to all terms of the
Indenture.

            The Class A-2 Notes are and will be equally and ratably secured by
the Collateral pledged as security therefor as provided in the Indenture. The
Class A-1 Notes are prior in order of principal payment to the Class A-2 Notes,
and the Class A-2 Notes are senior to the Class A-3 Notes, Class A-4 Notes,
Class A-5 Notes, Class A Auction Rate Notes and Class B Notes, as and to the
extent provided in the Indenture.

            Principal of the Class A-2 Notes shall be payable on each
Distribution Date in an amount described on the face hereof. "Distribution Date"
means the 15th day of each March, June, September and December or, if any such
date is not a Business Day, the next succeeding Business Day, commencing March
2003.

            As described on the face hereof, the entire unpaid principal amount
of this Note shall be due and payable on the Class A-2 Maturity Date.
Notwithstanding the foregoing, the entire unpaid principal amount of the Notes
shall be due and payable on the date on which (i) an Event of Default shall have
occurred and be continuing and (ii) the Indenture Trustee or the Noteholders
representing not less than a majority of the Outstanding Amount of the Notes
shall have declared the Notes to be immediately due and payable in the manner
provided in Section 5.2 of the Indenture. All principal payments on the Class
A-2 Notes shall be made pro rata to the Noteholders entitled thereto.

            Interest on the Class A-2 Notes shall be payable on each
Distribution Date on the principal amount outstanding of the Class A-2 Notes
until the principal amount thereof is paid in full, at a rate per annum equal to
the Class A-2 Rate. The "Class A-2 Rate" for each Accrual Period shall be equal
to Three-Month LIBOR as determined on the second Business Day before the
beginning of that Accrual Period plus 0.04%.

            Payments of interest on this Note on each Distribution Date,
together with the installment of principal, if any, to the extent not in full
payment of this Note, shall be made by

                                        4
<Page>

check mailed to the Person whose name appears as the Registered Holder of this
Note (or one or more Predecessor Notes) on the Note Register on the Record Date,
except that with respect to Notes registered on the Record Date in the name of
the nominee of the Clearing Agency, unless Definitive Notes have been issued
(initially, such nominee to be Cede & Co.), payments shall be made by wire
transfer in immediately available funds to the account designated by such
nominee. Such checks shall be mailed to the Person entitled thereto at the
address of such Person as it appears on the Note Register as of the applicable
Record Date without requiring that this Note be submitted for notation of
payment, and the mailing of such check shall constitute payment of the amount
thereof regardless of whether such check is returned undelivered. Any reduction
in the principal amount of this Note (or any one or more Predecessor Notes)
effected by any payments made on any Distribution Date shall be binding upon all
future Noteholders of this Note and of any Note issued upon the registration of
transfer hereof or in exchange hereof or in lieu hereof, whether or not noted
hereon. If funds are expected to be available, as provided in the Indenture, for
payment in full of the then remaining unpaid principal amount of this Note on a
Distribution Date, then the Indenture Trustee, in the name of and on behalf of
the Issuer, shall notify the Person who was the Noteholder hereof as of the
preceding Record Date by notice mailed no later than five days prior to such
Distribution Date and the amount then due and payable shall be payable only upon
presentation and surrender of this Note at the Indenture Trustee's Corporate
Trust Office or at the office of the Indenture Trustee's agent appointed for
such purposes located in the Borough of Manhattan, The City of New York.

            The Issuer shall pay interest on overdue installments of interest on
this Note at the Class A-2 Rate to the extent lawful.

            As provided in the Indenture and subject to certain limitations set
forth therein, the transfer of this Note may be registered on the Note Register
upon surrender of this Note for registration of transfer at the office or agency
designated by the Issuer pursuant to the Indenture, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Indenture Trustee duly executed by, the Noteholder hereof or his attorney duly
authorized in writing, with such signature guaranteed by an "eligible guarantor
institution" meeting the requirements of the Note Registrar, which requirements
include membership or participation in Securities Transfer Agent's Medallion
Program ("STAMP") or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP
(all in accordance with the Exchange Act), and such other documents as the
Indenture Trustee may require, and thereupon one or more new Notes of authorized
denominations and in the same aggregate principal amount shall be issued to the
designated transferee or transferees. No service charge will be charged for any
registration of transfer or exchange of this Note, but the transferor may be
required to pay a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection with any such registration of transfer or
exchange.

            Each Noteholder or Note Owner, by acceptance of a Note or, in the
case of a Note Owner, a beneficial interest in the Note, covenants and agrees
that no recourse may be taken, directly or indirectly, with respect to the
obligations of the Issuer or the Indenture Trustee on the Notes or under the
Indenture or any certificate or other writing delivered in connection therewith,
against (i) the Indenture Trustee or the Eligible Lender Trustee in its
individual capacity, (ii) any owner of a beneficial interest in the Issuer or
(iii) any partner, owner, beneficiary, agent, officer, director or employee of
the Indenture Trustee or the Eligible Lender Trustee in its individual

                                        5
<Page>

capacity, any holder or owner of a beneficial interest in the Issuer, the
Eligible Lender Trustee or the Indenture Trustee or of any successor or assign
thereof in its individual capacity, except as any such Person may have expressly
agreed (it being understood that the Indenture Trustee and the Eligible Lender
Trustee have no such obligations in their individual capacity) and except that
any such partner, owner or beneficiary shall be fully liable, to the extent
provided by applicable law, for any unpaid consideration for stock, unpaid
capital contribution or failure to pay any installment or call owing to such
entity.

            Each Noteholder or Note Owner, by acceptance of a Note or, in the
case of a Note Owner, a beneficial interest in a Note, covenants and agrees that
by accepting the benefits of the Indenture such Noteholder or Note Owner will
not at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy,
reorganization, arrangement, insolvency, receivership or liquidation proceedings
or other proceedings under any United States Federal or state bankruptcy or
similar law in connection with any obligations relating to the Notes, the
Indenture or the other Basic Documents.

            Prior to the due presentment for registration of transfer of this
Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the
Indenture Trustee may treat the Person in whose name this Note (as of the day of
determination or as of such other date as may be specified in the Indenture) is
registered as the owner hereof for all purposes whether or not this Note be
overdue, and neither the Issuer, the Indenture Trustee nor any such agent shall
be affected by notice to the contrary.

            The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Issuer and the rights of the Noteholders under the Indenture at any time by the
Issuer with the consent of the Noteholders representing a majority of the
Outstanding Amount of all Notes at the time outstanding. The Indenture also
contains provisions permitting the Noteholders representing specified
percentages of the Outstanding Amount of the Notes, on behalf of all the
Noteholders, to waive compliance by the Issuer with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences.
Any such consent or waiver by the holder of this Note (or any one of more
Predecessor Notes) shall be conclusive and binding upon such holder and upon all
future holders of this Note and of any Note issued upon registration of transfer
hereof or in exchange hereof or in lieu hereof whether or not notation of such
consent or waiver is made upon this Note. The Indenture also permits the
Indenture Trustee to amend or waive certain terms and conditions set forth in
the Indenture without the consent of holders of the Notes issued thereunder.

            The term "Issuer" as used in this Note includes any successor to the
Issuer under the Indenture.

            The Issuer is permitted by the Indenture, under certain
circumstances, to merge or consolidate, subject to the rights of the Indenture
Trustee and the Noteholders under the Indenture.

            The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth.

                                        6
<Page>

            This Note shall be construed in accordance with the laws of the
State of New York, without reference to its conflict of law provisions, and the
obligations, rights and remedies of the parties hereunder and thereunder shall
be determined in accordance with such laws.

            No reference herein to the Indenture and no provision of this Note
or of the Indenture shall alter or impair the obligation of the Issuer, which is
absolute and unconditional, to pay the principal of and interest on this Note at
the times, place, and rate, and in the coin or currency, herein prescribed.

            Anything herein to the contrary notwithstanding, except as expressly
provided in the Basic Documents, neither The Bank of New York, in its individual
capacity, Chase Manhattan Bank USA, National Association in its individual
capacity, any owner of a beneficial interest in the Issuer, nor any of their
respective partners, beneficiaries, agents, officers, directors, employees or
successors or assigns shall be personally liable for, nor shall recourse be had
to any of them for, the payment of principal of or interest on, or performance
of, or omission to perform, any of the covenants, obligations or
indemnifications contained in this Note or the Indenture; it being expressly
understood that said covenants, obligations and indemnifications have been made
by the Eligible Lender Trustee for the sole purposes of binding the interests of
the Eligible Lender Trustee in the assets of the Issuer. The Noteholder of this
Note by the acceptance hereof agrees that, except as expressly provided in the
Basic Documents, in the case of an Event of Default under the Indenture, the
Noteholder shall have no claim against any of the foregoing for any deficiency,
loss or claim therefrom; PROVIDED, HOWEVER, that nothing contained herein shall
be taken to prevent recourse to, and enforcement against, the assets of the
Issuer for any and all liabilities, obligations and undertakings contained in
the Indenture or in this Note.

                                        7
<Page>

                                   ASSIGNMENT

Social Security or taxpayer I.D. or other identifying number of assignee

--------------------------------------------------------------------------------

            FOR VALUE RECEIVED, the undersigned hereby sells, assigns and
transfers unto

--------------------------------------------------------------------------------
                         (name and address of assignee)


the within Note and all rights thereunder, and hereby irrevocably constitutes
and appoints

--------------------------------------------------------------------------------
attorney, to transfer said Note on the books kept for registration thereof, with
full power of substitution in the premises.

Dated:
      -----------

                                                                              */
                                                      --------------------------
                                                           Signature Guaranteed:


                                                                              */
                                                      --------------------------

----------
*/   NOTICE: The signature to this assignment must correspond with the name of
the registered owner as it appears on the face of the within Note in every
particular, without alteration, enlargement or any change whatever. Such
signature must be guaranteed by an "eligible guarantor institution" meeting the
requirements of the Note Registrar, which requirements include membership or
participation in STAMP or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP,
all in accordance with the Securities Exchange Act of 1934, as amended.

                                        8
<Page>

                                                                     EXHIBIT A-3
                                                                TO THE INDENTURE
                            [FORM OF CLASS A-3 NOTE]

                       SEE REVERSE FOR CERTAIN DEFINITIONS

            Unless this Note is presented by an authorized representative of The
Depository Trust Company, a New York corporation ("DTC"), to the Issuer (as
defined below) or its agent for registration of transfer, exchange or payment,
and any Note issued is registered in the name of Cede & Co. or in such other
name as is requested by an authorized representative of DTC (and any payment is
made to Cede & Co. or to such other entity as is requested by an authorized
representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
hereof, Cede & Co., has an interest herein.

            THE PRINCIPAL OF THIS NOTE IS PAYABLE IN INSTALLMENTS AS SET FORTH
HEREIN. ACCORDINGLY, THE OUTSTANDING PRINCIPAL AMOUNT OF THIS NOTE AT ANY TIME
MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. THIS NOTE IS NOT
GUARANTEED OR INSURED BY ANY GOVERNMENTAL AGENCY.


NUMBER                                                    [Note Face Amount]
R-__                                                      CUSIP NO. 78442G EP7
                                                          ISIN No. US78442G EP72

                                        1
<Page>

                          SLM STUDENT LOAN TRUST 2002-7

                FLOATING RATE CLASS A-3 STUDENT LOAN-BACKED NOTES

            SLM Student Loan Trust 2002-7, a statutory trust organized and
existing under the laws of the State of Delaware (herein referred to as the
"Issuer"), for value received, hereby promises to pay to CEDE & CO., or
registered assigns, the principal sum of [Note Face Amount] DOLLARS payable on
each Distribution Date in an amount equal to the result obtained by multiplying
(i) a fraction the numerator of which is [Note Face Amount] and the denominator
of which is $198,460,000 by (ii) the aggregate amount, if any, payable to Class
A-3 Noteholders on such Distribution Date in respect of principal of the Notes
pursuant to Section 3.1 of the Indenture dated as of November 1, 2002, among the
Issuer, Chase Manhattan Bank USA, National Association, a Delaware banking
corporation, as Eligible Lender Trustee on behalf of the Issuer, and The Bank of
New York, a New York banking corporation, as Indenture Trustee (the "Indenture
Trustee") (capitalized terms used but not defined herein being defined in
APPENDIX A-1 and APPENDIX A-2 to the INDENTURE, which also contains rules as to
usage that shall be applicable herein); PROVIDED, HOWEVER, that the entire
unpaid principal amount of this Note shall be due and payable on the September
2015 Distribution Date (the "Class A-3 Maturity Date").

            The Issuer shall pay interest on this Note at the rate per annum
equal to the Class A-3 Rate (as defined on the reverse hereof), on each
Distribution Date until the principal of this Note is paid or made available for
payment, on the principal amount of this Note outstanding on the preceding
Distribution Date (after giving effect to all payments of principal made on the
preceding Distribution Date), subject to certain limitations contained in
Section 3.1 of the Indenture. Interest on this Note shall accrue from and
including the preceding Distribution Date (or, in the case of the first Accrual
Period, the Closing Date) to but excluding the following Distribution Date (each
an "Accrual Period"). Interest shall be calculated on the basis of the actual
number of days elapsed in each Accrual Period divided by 360. Such principal of
and interest on this Note shall be paid in the manner specified on the reverse
hereof.

            The principal of and interest on this Note are payable in such coin
or currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts. All payments made by the Issuer
with respect to this Note shall be applied first to interest due and payable on
this Note as provided above and then to the unpaid principal of this Note.

            Reference is made to the further provisions of this Note set forth
on the reverse hereof, which shall have the same effect as though fully set
forth on the face of this Note.

            Unless the certificate of authentication hereon has been executed by
the Indenture Trustee whose name appears below by manual signature, this Note
shall not be entitled to any benefit under the Indenture referred to on the
reverse hereof, or be valid or obligatory for any purpose.

                                        2
<Page>


          IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly
executed, manually or in facsimile, as of the date set forth below.

                                           SLM STUDENT LOAN TRUST 2002-7

                                           By CHASE MANHATTAN BANK USA, NATIONAL
                                                ASSOCIATION, not in its
                                                individual capacity but solely
                                                as Eligible Lender Trustee under
                                                the Trust Agreement,

                                                By:
                                                    ----------------------------
                                                       Authorized Signatory

Date:  November 26, 2002


                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

            This is one of the Notes designated above and referred to in the
within-mentioned Indenture.

                                                THE BANK OF NEW YORK,
                                                not in its individual capacity
                                                but solely as Indenture Trustee,


                                                By:
                                                    ----------------------------
                                                       Authorized Signatory

Date:  November 26, 2002

                                        3
<Page>

                                [REVERSE OF NOTE]

            This Note is one of a duly authorized issue of Notes of the Issuer,
designated as its Floating Rate Class A-3 Student Loan-Backed Notes (the "Class
A-3 Notes"), which, together with the Issuer's Floating Rate Class A-1 Student
Loan-Backed Notes (the "Class A-1 Notes"), Floating Rate Class A-2 Student
Loan-Backed Notes (the "Class A-2 Notes"), Floating Rate Class A-4 Student
Loan-Backed Notes (the "Class A-4 Notes"), Floating Rate Class A-5 Student
Loan-Backed Notes (the "Class A-5 Notes"), Auction Rate Class A-6 Student
Loan-Backed Notes (the "Class A-6 Notes"), Auction Rate Class A-7 Student
Loan-Backed Notes (the "Class A-7 Notes"), Auction Rate Class A-8 Student
Loan-Backed Notes (the "Class A-8 Notes"), Auction Rate Class A-9 Student
Loan-Backed Notes (the "Class A-9 Notes"), Auction Rate Class A-10 Student
Loan-Backed Notes (the "Class A-10 Notes"), Auction Rate Class A-11 Student
Loan-Backed Notes (the "Class A-11 Notes") and Auction Rate Class B Student
Loan-Backed Notes (the "Class B Notes" and, together with the Class A Notes, the
"Notes") are issued under and secured by the Indenture, to which Indenture and
all indentures supplemental thereto reference is hereby made for a statement of
the respective rights and obligations thereunder of the Issuer, the Indenture
Trustee and the Noteholders. The Notes are subject to all terms of the
Indenture.

            The Class A-3 Notes are and will be equally and ratably secured by
the Collateral pledged as security therefor as provided in the Indenture. The
Class A-1 Notes and the Class A-2 Notes are prior in order of principal payment
to the Class A-3 Notes, and the Class A-3 Notes are prior in order of principal
payment to the Class A-4 Notes, Class A-5 Notes and Class A Auction Rate Notes
and are senior to the Class B Notes, as and to the extent provided in the
Indenture.

            Principal of the Class A-3 Notes shall be payable on each
Distribution Date in an amount described on the face hereof. "Distribution Date"
means the 15th day of each March, June, September and December or, if any such
date is not a Business Day, the next succeeding Business Day, commencing March
2003.

            As described on the face hereof, the entire unpaid principal amount
of this Note shall be due and payable on the Class A-3 Maturity Date.
Notwithstanding the foregoing, the entire unpaid principal amount of the Notes
shall be due and payable on the date on which (i) an Event of Default shall have
occurred and be continuing and (ii) the Indenture Trustee or the Noteholders
representing not less than a majority of the Outstanding Amount of the Notes
shall have declared the Notes to be immediately due and payable in the manner
provided in Section 5.2 of the Indenture. All principal payments on the Class
A-3 Notes shall be made pro rata to the Noteholders entitled thereto.

            Interest on the Class A-3 Notes shall be payable on each
Distribution Date on the principal amount outstanding of the Class A-3 Notes
until the principal amount thereof is paid in full, at a rate per annum equal to
the Class A-3 Rate. The "Class A-3 Rate" for each Accrual Period shall be equal
to Three-Month LIBOR as determined on the second Business Day before the
beginning of that Accrual Period plus 0.09%.

                                        4
<Page>

            Payments of interest on this Note on each Distribution Date,
together with the installment of principal, if any, to the extent not in full
payment of this Note, shall be made by check mailed to the Person whose name
appears as the Registered Holder of this Note (or one or more Predecessor Notes)
on the Note Register on the Record Date, except that with respect to Notes
registered on the Record Date in the name of the nominee of the Clearing Agency,
unless Definitive Notes have been issued (initially, such nominee to be Cede &
Co.), payments shall be made by wire transfer in immediately available funds to
the account designated by such nominee. Such checks shall be mailed to the
Person entitled thereto at the address of such Person as it appears on the Note
Register as of the applicable Record Date without requiring that this Note be
submitted for notation of payment, and the mailing of such check shall
constitute payment of the amount thereof regardless of whether such check is
returned undelivered. Any reduction in the principal amount of this Note (or any
one or more Predecessor Notes) effected by any payments made on any Distribution
Date shall be binding upon all future Noteholders of this Note and of any Note
issued upon the registration of transfer hereof or in exchange hereof or in lieu
hereof, whether or not noted hereon. If funds are expected to be available, as
provided in the Indenture, for payment in full of the then remaining unpaid
principal amount of this Note on a Distribution Date, then the Indenture
Trustee, in the name of and on behalf of the Issuer, shall notify the Person who
was the Noteholder hereof as of the preceding Record Date by notice mailed no
later than five days prior to such Distribution Date and the amount then due and
payable shall be payable only upon presentation and surrender of this Note at
the Indenture Trustee's Corporate Trust Office or at the office of the Indenture
Trustee's agent appointed for such purposes located in the Borough of Manhattan,
The City of New York.

            The Issuer shall pay interest on overdue installments of interest on
this Note at the Class A-3 Rate to the extent lawful.

            As provided in the Indenture and subject to certain limitations set
forth therein, the transfer of this Note may be registered on the Note Register
upon surrender of this Note for registration of transfer at the office or agency
designated by the Issuer pursuant to the Indenture, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Indenture Trustee duly executed by, the Noteholder hereof or his attorney duly
authorized in writing, with such signature guaranteed by an "eligible guarantor
institution" meeting the requirements of the Note Registrar, which requirements
include membership or participation in Securities Transfer Agent's Medallion
Program ("STAMP") or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP
(all in accordance with the Exchange Act), and such other documents as the
Indenture Trustee may require, and thereupon one or more new Notes of authorized
denominations and in the same aggregate principal amount shall be issued to the
designated transferee or transferees. No service charge will be charged for any
registration of transfer or exchange of this Note, but the transferor may be
required to pay a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection with any such registration of transfer or
exchange.

            Each Noteholder or Note Owner, by acceptance of a Note or, in the
case of a Note Owner, a beneficial interest in the Note, covenants and agrees
that no recourse may be taken, directly or indirectly, with respect to the
obligations of the Issuer or the Indenture Trustee on the Notes or under the
Indenture or any certificate or other writing delivered in connection therewith,
against (i) the Indenture Trustee or the Eligible Lender Trustee in its
individual capacity, (ii) any

                                        5
<Page>

owner of a beneficial interest in the Issuer or (iii) any partner, owner,
beneficiary, agent, officer, director or employee of the Indenture Trustee or
the Eligible Lender Trustee in its individual capacity, any holder or owner of a
beneficial interest in the Issuer, the Eligible Lender Trustee or the Indenture
Trustee or of any successor or assign thereof in its individual capacity, except
as any such Person may have expressly agreed (it being understood that the
Indenture Trustee and the Eligible Lender Trustee have no such obligations in
their individual capacity) and except that any such partner, owner or
beneficiary shall be fully liable, to the extent provided by applicable law, for
any unpaid consideration for stock, unpaid capital contribution or failure to
pay any installment or call owing to such entity.

            Each Noteholder or Note Owner, by acceptance of a Note or, in the
case of a Note Owner, a beneficial interest in a Note, covenants and agrees that
by accepting the benefits of the Indenture such Noteholder or Note Owner will
not at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy,
reorganization, arrangement, insolvency, receivership or liquidation proceedings
or other proceedings under any United States Federal or state bankruptcy or
similar law in connection with any obligations relating to the Notes, the
Indenture or the other Basic Documents.

            Prior to the due presentment for registration of transfer of this
Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the
Indenture Trustee may treat the Person in whose name this Note (as of the day of
determination or as of such other date as may be specified in the Indenture) is
registered as the owner hereof for all purposes whether or not this Note be
overdue, and neither the Issuer, the Indenture Trustee nor any such agent shall
be affected by notice to the contrary.

            The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Issuer and the rights of the Noteholders under the Indenture at any time by the
Issuer with the consent of the Noteholders representing a majority of the
Outstanding Amount of all Notes at the time outstanding. The Indenture also
contains provisions permitting the Noteholders representing specified
percentages of the Outstanding Amount of the Notes, on behalf of all the
Noteholders, to waive compliance by the Issuer with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences.
Any such consent or waiver by the holder of this Note (or any one of more
Predecessor Notes) shall be conclusive and binding upon such holder and upon all
future holders of this Note and of any Note issued upon registration of transfer
hereof or in exchange hereof or in lieu hereof whether or not notation of such
consent or waiver is made upon this Note. The Indenture also permits the
Indenture Trustee to amend or waive certain terms and conditions set forth in
the Indenture without the consent of holders of the Notes issued thereunder.

            The term "Issuer" as used in this Note includes any successor to the
Issuer under the Indenture.

            The Issuer is permitted by the Indenture, under certain
circumstances, to merge or consolidate, subject to the rights of the Indenture
Trustee and the Noteholders under the Indenture.

                                        6
<Page>

            The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth.

            This Note shall be construed in accordance with the laws of the
State of New York, without reference to its conflict of law provisions, and the
obligations, rights and remedies of the parties hereunder and thereunder shall
be determined in accordance with such laws.

            No reference herein to the Indenture and no provision of this Note
or of the Indenture shall alter or impair the obligation of the Issuer, which is
absolute and unconditional, to pay the principal of and interest on this Note at
the times, place, and rate, and in the coin or currency, herein prescribed.

            Anything herein to the contrary notwithstanding, except as expressly
provided in the Basic Documents, neither The Bank of New York, in its individual
capacity, Chase Manhattan Bank USA, National Association in its individual
capacity, any owner of a beneficial interest in the Issuer, nor any of their
respective partners, beneficiaries, agents, officers, directors, employees or
successors or assigns shall be personally liable for, nor shall recourse be had
to any of them for, the payment of principal of or interest on, or performance
of, or omission to perform, any of the covenants, obligations or
indemnifications contained in this Note or the Indenture; it being expressly
understood that said covenants, obligations and indemnifications have been made
by the Eligible Lender Trustee for the sole purposes of binding the interests of
the Eligible Lender Trustee in the assets of the Issuer. The Noteholder of this
Note by the acceptance hereof agrees that, except as expressly provided in the
Basic Documents, in the case of an Event of Default under the Indenture, the
Noteholder shall have no claim against any of the foregoing for any deficiency,
loss or claim therefrom; PROVIDED, HOWEVER, that nothing contained herein shall
be taken to prevent recourse to, and enforcement against, the assets of the
Issuer for any and all liabilities, obligations and undertakings contained in
the Indenture or in this Note.

                                        7
<Page>

                                   ASSIGNMENT

Social Security or taxpayer I.D. or other identifying number of assignee

--------------------------------------------------------------------------------

            FOR VALUE RECEIVED, the undersigned hereby sells, assigns and
transfers unto

--------------------------------------------------------------------------------
                         (name and address of assignee)


the within Note and all rights thereunder, and hereby irrevocably constitutes
and appoints

--------------------------------------------------------------------------------
attorney, to transfer said Note on the books kept for registration thereof, with
full power of substitution in the premises.

Dated:
      -----------

                                                                              */
                                                      --------------------------
                                                           Signature Guaranteed:


                                                                              */
                                                      --------------------------

----------
*/   NOTICE: The signature to this assignment must correspond with the name of
the registered owner as it appears on the face of the within Note in every
particular, without alteration, enlargement or any change whatever. Such
signature must be guaranteed by an "eligible guarantor institution" meeting the
requirements of the Note Registrar, which requirements include membership or
participation in STAMP or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP,
all in accordance with the Securities Exchange Act of 1934, as amended.

                                        8
<Page>

                                                                     EXHIBIT A-4
                                                                TO THE INDENTURE

                            [FORM OF CLASS A-4 NOTE]

                       SEE REVERSE FOR CERTAIN DEFINITIONS

          Unless this Note is presented by an authorized representative of The
Depository Trust Company, a New York corporation ("DTC"), to the Issuer (as
defined below) or its agent for registration of transfer, exchange or payment,
and any Note issued is registered in the name of Cede & Co. or in such other
name as is requested by an authorized representative of DTC (and any payment is
made to Cede & Co. or to such other entity as is requested by an authorized
representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
hereof, Cede & Co., has an interest herein.

          THE PRINCIPAL OF THIS NOTE IS PAYABLE IN INSTALLMENTS AS SET FORTH
HEREIN. ACCORDINGLY, THE OUTSTANDING PRINCIPAL AMOUNT OF THIS NOTE AT ANY TIME
MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. THIS NOTE IS NOT
GUARANTEED OR INSURED BY ANY GOVERNMENTAL AGENCY.

NUMBER                                                [Note Face Amount]
R-__                                                  CUSIP NO. 78442G EQ5
                                                      ISIN No. US78442G EQ55

                                        1
<Page>

                          SLM STUDENT LOAN TRUST 2002-7

                FLOATING RATE CLASS A-4 STUDENT LOAN-BACKED NOTES

          SLM Student Loan Trust 2002-7, a statutory trust organized and
existing under the laws of the State of Delaware (herein referred to as the
"Issuer"), for value received, hereby promises to pay to CEDE & CO., or
registered assigns, the principal sum of [Note Face Amount] DOLLARS payable on
each Distribution Date in an amount equal to the result obtained by multiplying
(i) a fraction the numerator of which is [Note Face Amount] and the denominator
of which is $206,949,000 by (ii) the aggregate amount, if any, payable to Class
A-4 Noteholders on such Distribution Date in respect of principal of the Notes
pursuant to Section 3.1 of the Indenture dated as of November 1, 2002, among the
Issuer, Chase Manhattan Bank USA, National Association, a Delaware banking
corporation, as Eligible Lender Trustee on behalf of the Issuer, and The Bank of
New York, a New York banking corporation, as Indenture Trustee (the "Indenture
Trustee") (capitalized terms used but not defined herein being defined in
APPENDIX A-1 and APPENDIX A-2 to the INDENTURE, which also contains rules as to
usage that shall be applicable herein); PROVIDED, HOWEVER, that the entire
unpaid principal amount of this Note shall be due and payable on the September
2017 Distribution Date (the "Class A-4 Maturity Date").

          The Issuer shall pay interest on this Note at the rate per annum equal
to the Class A-4 Rate (as defined on the reverse hereof), on each Distribution
Date until the principal of this Note is paid or made available for payment, on
the principal amount of this Note outstanding on the preceding Distribution Date
(after giving effect to all payments of principal made on the preceding
Distribution Date), subject to certain limitations contained in Section 3.1 of
the Indenture. Interest on this Note shall accrue from and including the
preceding Distribution Date (or, in the case of the first Accrual Period, the
Closing Date) to but excluding the following Distribution Date (each an "Accrual
Period"). Interest shall be calculated on the basis of the actual number of days
elapsed in each Accrual Period divided by 360. Such principal of and interest on
this Note shall be paid in the manner specified on the reverse hereof.

          The principal of and interest on this Note are payable in such coin or
currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts. All payments made by the Issuer
with respect to this Note shall be applied first to interest due and payable on
this Note as provided above and then to the unpaid principal of this Note.

          Reference is made to the further provisions of this Note set forth on
the reverse hereof, which shall have the same effect as though fully set forth
on the face of this Note.

          Unless the certificate of authentication hereon has been executed by
the Indenture Trustee whose name appears below by manual signature, this Note
shall not be entitled to any benefit under the Indenture referred to on the
reverse hereof, or be valid or obligatory for any purpose.

                                       2
<Page>

          IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly
executed, manually or in facsimile, as of the date set forth below.

                                       SLM STUDENT LOAN TRUST 2002-7

                                       By CHASE MANHATTAN BANK USA, NATIONAL
                                            ASSOCIATION, not in its individual
                                            capacity but solely as Eligible
                                            Lender Trustee under the Trust
                                            Agreement,

                                            By:
                                                -----------------------------
                                                     Authorized Signatory

Date: November 26, 2002

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

          This is one of the Notes designated above and referred to in the
within-mentioned Indenture.

                                            THE BANK OF NEW YORK,
                                            not in its individual capacity but
                                            solely as Indenture Trustee,

                                            By:
                                                -----------------------------
                                                     Authorized Signatory

Date: November 26, 2002

                                       3
<Page>

                                [REVERSE OF NOTE]

          This Note is one of a duly authorized issue of Notes of the Issuer,
designated as its Floating Rate Class A-4 Student Loan-Backed Notes (the "Class
A-4 Notes"), which, together with the Issuer's Floating Rate Class A-1 Student
Loan-Backed Notes (the "Class A-1 Notes"), Floating Rate Class A-2 Student
Loan-Backed Notes (the "Class A-2 Notes"), Floating Rate Class A-3 Student
Loan-Backed Notes (the "Class A-3 Notes"), Floating Rate Class A-4 Student
Loan-Backed Notes (the "Class A-4 Notes"), Floating Rate Class A-5 Student
Loan-Backed Notes (the "Class A-5 Notes"), Auction Rate Class A-6 Student
Loan-Backed Notes (the "Class A-6 Notes"), Auction Rate Class A-7 Student
Loan-Backed Notes (the "Class A-7 Notes"), Auction Rate Class A-8 Student
Loan-Backed Notes (the "Class A-8 Notes"), Auction Rate Class A-9 Student
Loan-Backed Notes (the "Class A-9 Notes"), Auction Rate Class A-10 Student
Loan-Backed Notes (the "Class A-10 Notes"), Auction Rate Class A-11 Student
Loan-Backed Notes (the "Class A-11 Notes") and Auction Rate Class B Student
Loan-Backed Notes (the "Class B Notes" and, together with the Class A Notes, the
"Notes") are issued under and secured by the Indenture, to which Indenture and
all indentures supplemental thereto reference is hereby made for a statement of
the respective rights and obligations thereunder of the Issuer, the Indenture
Trustee and the Noteholders. The Notes are subject to all terms of the
Indenture.

          The Class A-4 Notes are and will be equally and ratably secured by the
Collateral pledged as security therefor as provided in the Indenture. The Class
A-1 Notes, Class A-2 Notes and Class A-3 Notes are prior in order of principal
payment to the Class A-4 Notes, and the Class A-4 Notes are prior in order of
principal payment to the Class A-5 Notes and Class A Auction Rate Notes and are
senior to the Class B Notes, as and to the extent provided in the Indenture.

          Principal of the Class A-4 Notes shall be payable on each Distribution
Date in an amount described on the face hereof. "Distribution Date" means the
15th day of each March, June, September and December or, if any such date is not
a Business Day, the next succeeding Business Day, commencing March 2003.

          As described on the face hereof, the entire unpaid principal amount of
this Note shall be due and payable on the Class A-4 Maturity Date.
Notwithstanding the foregoing, the entire unpaid principal amount of the Notes
shall be due and payable on the date on which (i) an Event of Default shall have
occurred and be continuing and (ii) the Indenture Trustee or the Noteholders
representing not less than a majority of the Outstanding Amount of the Notes
shall have declared the Notes to be immediately due and payable in the manner
provided in Section 5.2 of the Indenture. All principal payments on the Class
A-4 Notes shall be made pro rata to the Noteholders entitled thereto.

          Interest on the Class A-4 Notes shall be payable on each Distribution
Date on the principal amount outstanding of the Class A-4 Notes until the
principal amount thereof is paid in full, at a rate per annum equal to the Class
A-4 Rate. The "Class A-4 Rate" for each Accrual Period shall be equal to
Three-Month LIBOR as determined on the second Business Day before the beginning
of that Accrual Period plus 0.18%.

                                       4
<Page>

          Payments of interest on this Note on each Distribution Date, together
with the installment of principal, if any, to the extent not in full payment of
this Note, shall be made by check mailed to the Person whose name appears as the
Registered Holder of this Note (or one or more Predecessor Notes) on the Note
Register on the Record Date, except that with respect to Notes registered on the
Record Date in the name of the nominee of the Clearing Agency, unless Definitive
Notes have been issued (initially, such nominee to be Cede & Co.), payments
shall be made by wire transfer in immediately available funds to the account
designated by such nominee. Such checks shall be mailed to the Person entitled
thereto at the address of such Person as it appears on the Note Register as of
the applicable Record Date without requiring that this Note be submitted for
notation of payment, and the mailing of such check shall constitute payment of
the amount thereof regardless of whether such check is returned undelivered. Any
reduction in the principal amount of this Note (or any one or more Predecessor
Notes) effected by any payments made on any Distribution Date shall be binding
upon all future Noteholders of this Note and of any Note issued upon the
registration of transfer hereof or in exchange hereof or in lieu hereof, whether
or not noted hereon. If funds are expected to be available, as provided in the
Indenture, for payment in full of the then remaining unpaid principal amount of
this Note on a Distribution Date, then the Indenture Trustee, in the name of and
on behalf of the Issuer, shall notify the Person who was the Noteholder hereof
as of the preceding Record Date by notice mailed no later than five days prior
to such Distribution Date and the amount then due and payable shall be payable
only upon presentation and surrender of this Note at the Indenture Trustee's
Corporate Trust Office or at the office of the Indenture Trustee's agent
appointed for such purposes located in the Borough of Manhattan, The City of New
York.

          The Issuer shall pay interest on overdue installments of interest on
this Note at the Class A-4 Rate to the extent lawful.

          As provided in the Indenture and subject to certain limitations set
forth therein, the transfer of this Note may be registered on the Note Register
upon surrender of this Note for registration of transfer at the office or agency
designated by the Issuer pursuant to the Indenture, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Indenture Trustee duly executed by, the Noteholder hereof or his attorney duly
authorized in writing, with such signature guaranteed by an "eligible guarantor
institution" meeting the requirements of the Note Registrar, which requirements
include membership or participation in Securities Transfer Agent's Medallion
Program ("STAMP") or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP
(all in accordance with the Exchange Act), and such other documents as the
Indenture Trustee may require, and thereupon one or more new Notes of authorized
denominations and in the same aggregate principal amount shall be issued to the
designated transferee or transferees. No service charge will be charged for any
registration of transfer or exchange of this Note, but the transferor may be
required to pay a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection with any such registration of transfer or
exchange.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in the Note, covenants and agrees that no
recourse may be taken, directly or indirectly, with respect to the obligations
of the Issuer or the Indenture Trustee on the Notes or under the Indenture or
any certificate or other writing delivered in connection therewith, against (i)
the Indenture Trustee or the Eligible Lender Trustee in its individual capacity,
(ii) any

                                       5
<Page>

owner of a beneficial interest in the Issuer or (iii) any partner, owner,
beneficiary, agent, officer, director or employee of the Indenture Trustee or
the Eligible Lender Trustee in its individual capacity, any holder or owner of a
beneficial interest in the Issuer, the Eligible Lender Trustee or the Indenture
Trustee or of any successor or assign thereof in its individual capacity, except
as any such Person may have expressly agreed (it being understood that the
Indenture Trustee and the Eligible Lender Trustee have no such obligations in
their individual capacity) and except that any such partner, owner or
beneficiary shall be fully liable, to the extent provided by applicable law, for
any unpaid consideration for stock, unpaid capital contribution or failure to
pay any installment or call owing to such entity.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in a Note, covenants and agrees that by
accepting the benefits of the Indenture such Noteholder or Note Owner will not
at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy,
reorganization, arrangement, insolvency, receivership or liquidation proceedings
or other proceedings under any United States Federal or state bankruptcy or
similar law in connection with any obligations relating to the Notes, the
Indenture or the other Basic Documents.

          Prior to the due presentment for registration of transfer of this
Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the
Indenture Trustee may treat the Person in whose name this Note (as of the day of
determination or as of such other date as may be specified in the Indenture) is
registered as the owner hereof for all purposes whether or not this Note be
overdue, and neither the Issuer, the Indenture Trustee nor any such agent shall
be affected by notice to the contrary.

          The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Issuer and the rights of the Noteholders under the Indenture at any time by the
Issuer with the consent of the Noteholders representing a majority of the
Outstanding Amount of all Notes at the time outstanding. The Indenture also
contains provisions permitting the Noteholders representing specified
percentages of the Outstanding Amount of the Notes, on behalf of all the
Noteholders, to waive compliance by the Issuer with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences.
Any such consent or waiver by the holder of this Note (or any one of more
Predecessor Notes) shall be conclusive and binding upon such holder and upon all
future holders of this Note and of any Note issued upon registration of transfer
hereof or in exchange hereof or in lieu hereof whether or not notation of such
consent or waiver is made upon this Note. The Indenture also permits the
Indenture Trustee to amend or waive certain terms and conditions set forth in
the Indenture without the consent of holders of the Notes issued thereunder.

          The term "Issuer" as used in this Note includes any successor to the
Issuer under the Indenture.

          The Issuer is permitted by the Indenture, under certain circumstances,
to merge or consolidate, subject to the rights of the Indenture Trustee and the
Noteholders under the Indenture.

                                       6
<Page>

          The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth.

          This Note shall be construed in accordance with the laws of the State
of New York, without reference to its conflict of law provisions, and the
obligations, rights and remedies of the parties hereunder and thereunder shall
be determined in accordance with such laws.

          No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Issuer, which is
absolute and unconditional, to pay the principal of and interest on this Note at
the times, place, and rate, and in the coin or currency, herein prescribed.

          Anything herein to the contrary notwithstanding, except as expressly
provided in the Basic Documents, neither The Bank of New York, in its individual
capacity, Chase Manhattan Bank USA, National Association in its individual
capacity, any owner of a beneficial interest in the Issuer, nor any of their
respective partners, beneficiaries, agents, officers, directors, employees or
successors or assigns shall be personally liable for, nor shall recourse be had
to any of them for, the payment of principal of or interest on, or performance
of, or omission to perform, any of the covenants, obligations or
indemnifications contained in this Note or the Indenture; it being expressly
understood that said covenants, obligations and indemnifications have been made
by the Eligible Lender Trustee for the sole purposes of binding the interests of
the Eligible Lender Trustee in the assets of the Issuer. The Noteholder of this
Note by the acceptance hereof agrees that, except as expressly provided in the
Basic Documents, in the case of an Event of Default under the Indenture, the
Noteholder shall have no claim against any of the foregoing for any deficiency,
loss or claim therefrom; PROVIDED, HOWEVER, that nothing contained herein shall
be taken to prevent recourse to, and enforcement against, the assets of the
Issuer for any and all liabilities, obligations and undertakings contained in
the Indenture or in this Note.

                                       7
<Page>

                                   ASSIGNMENT

Social Security or taxpayer I.D. or other identifying number of assignee

--------------------------------------------------------------------------------

          FOR VALUE RECEIVED, the undersigned hereby sells, assigns and
transfers unto

--------------------------------------------------------------------------------
                         (name and address of assignee)

the within Note and all rights thereunder, and hereby irrevocably constitutes
and appoints

--------------------------------------------------------------------------------
attorney, to transfer said Note on the books kept for registration thereof, with
full power of substitution in the premises.

Dated:
       ---------------

                                                                              */
                                              --------------------------------
                                                           Signature Guaranteed:

                                                                              */
                                              --------------------------------

----------
*/   NOTICE: The signature to this assignment must correspond with the name of
the registered owner as it appears on the face of the within Note in every
particular, without alteration, enlargement or any change whatever. Such
signature must be guaranteed by an "eligible guarantor institution" meeting the
requirements of the Note Registrar, which requirements include membership or
participation in STAMP or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP,
all in accordance with the Securities Exchange Act of 1934, as amended.

                                       8
<Page>

                                                                     EXHIBIT A-5
                                                                TO THE INDENTURE

                            [FORM OF CLASS A-5 NOTE]

                       SEE REVERSE FOR CERTAIN DEFINITIONS

          Unless this Note is presented by an authorized representative of The
Bank of New York London to the Issuer (as defined below) or its agent for
registration of transfer, exchange or payment, and any Note issued is registered
in the name of The Bank of New York Depository (Nominees) Limited, or in such
other name as is requested by an authorized representative of The Bank of New
York London (and any payment is made to The Bank of New York Depository
(Nominees) Limited, or to such other entity as is requested by an authorized
representative of [DTC]), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
hereof, The Bank of New York Depository (Nominees) Limited, has an interest
herein.

          THE PRINCIPAL OF THIS NOTE IS PAYABLE IN INSTALLMENTS AS SET FORTH
HEREIN. ACCORDINGLY, THE OUTSTANDING PRINCIPAL AMOUNT OF THIS NOTE AT ANY TIME
MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. THIS NOTE IS NOT
GUARANTEED OR INSURED BY ANY GOVERNMENTAL AGENCY.

NUMBER                                            [Note Face Amount]
R-__                                              EUROPEAN COMMON CODE 015819782
                                                  ISIN No. US78442XS0158197821

                                       1
<Page>

                          SLM STUDENT LOAN TRUST 2002-7

                FLOATING RATE CLASS A-5 STUDENT LOAN-BACKED NOTES

          SLM Student Loan Trust 2002-7, a statutory trust organized and
existing under the laws of the State of Delaware (herein referred to as the
"Issuer"), for value received, hereby promises to pay to The Bank of New York
Depository (Nominees) Limited or registered assigns, the principal sum of [Note
Face Amount] EUROS payable on each Distribution Date in an amount equal to the
result obtained by multiplying (i) a fraction the numerator of which is [Note
Face Amount] and the denominator of which is (euro)500,000,000 by (ii) the
aggregate amount, if any, payable to Class A-5 Noteholders on such Distribution
Date in respect of principal of the Notes pursuant to Section 3.1 of the
Indenture dated as of November 1, 2002, among the Issuer, Chase Manhattan Bank
USA, National Association, a Delaware banking corporation, as Eligible Lender
Trustee on behalf of the Issuer, and The Bank of New York, a New York banking
corporation, as Indenture Trustee (the "Indenture Trustee") (capitalized terms
used but not defined herein being defined in APPENDIX A-1 and APPENDIX A-2 to
the INDENTURE, which also contains rules as to usage that shall be applicable
herein); PROVIDED, HOWEVER, that the entire unpaid principal amount of this Note
shall be due and payable on the September 2021 Distribution Date (the "Class A-5
Maturity Date").

          The Issuer shall pay interest on this Note at the rate per annum equal
to the Class A-5 Rate (as defined on the reverse hereof), on each Distribution
Date until the principal of this Note is paid or made available for payment, on
the principal amount of this Note outstanding on the preceding Distribution Date
(after giving effect to all payments of principal made on the preceding
Distribution Date), subject to certain limitations contained in Section 3.1 of
the Indenture. Interest on this Note shall accrue from and including the
preceding Distribution Date (or, in the case of the first Accrual Period, the
Closing Date) to but excluding the following Distribution Date (each an "Accrual
Period"). Interest shall be calculated on the basis of the actual number of days
elapsed in each Accrual Period divided by 360. Such principal of and interest on
this Note shall be paid in the manner specified on the reverse hereof.

          The principal of and interest on this Note are payable in Euros. All
payments made by the Issuer with respect to this Note shall be applied first to
interest due and payable on this Note as provided above and then to the unpaid
principal of this Note.

          Reference is made to the further provisions of this Note set forth on
the reverse hereof, which shall have the same effect as though fully set forth
on the face of this Note.

          Unless the certificate of authentication hereon has been executed by
the Indenture Trustee whose name appears below by manual signature, this Note
shall not be entitled to any benefit under the Indenture referred to on the
reverse hereof, or be valid or obligatory for any purpose.

                                       2
<Page>

          IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly
executed, manually or in facsimile, as of the date set forth below.

                                       SLM STUDENT LOAN TRUST 2002-7

                                       By   CHASE MANHATTAN BANK USA, NATIONAL
                                            ASSOCIATION, not in its individual
                                            capacity but solely as Eligible
                                            Lender Trustee under the Trust
                                            Agreement,

                                            By:
                                               ----------------------------
                                                   Authorized Signatory

Date: November 26, 2002

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

          This is one of the Notes designated above and referred to in the
within-mentioned Indenture.

                                            THE BANK OF NEW YORK,
                                            not in its individual capacity but
                                            solely as Indenture Trustee,

                                            By:
                                               ----------------------------
                                                   Authorized Signatory

Date: November 26, 2002

                                       3
<Page>

                                [REVERSE OF NOTE]

          This Note is one of a duly authorized issue of Notes of the Issuer,
designated as its Floating Rate Class A-5 Student Loan-Backed Notes (the "Class
A-5 Notes"), which, together with the Issuer's Floating Rate Class A-1 Student
Loan-Backed Notes (the "Class A-1 Notes"), Floating Rate Class A-2 Student
Loan-Backed Notes (the "Class A-2 Notes"), Floating Rate Class A-3 Student
Loan-Backed Notes (the "Class A-3 Notes"), Floating Rate Class A-4 Student
Loan-Backed Notes (the "Class A-4 Notes" and, together with the Class A-1 Notes,
the Class A-2 Notes, the Class A-3 Notes and the Class A-5 Notes, the "Floating
Rate Notes"), Auction Rate Class A-6 Student Loan-Backed Notes (the "Class A-6
Notes"), Auction Rate Class A-7 Student Loan-Backed Notes (the "Class A-7
Notes"), Auction Rate Class A-8 Student Loan-Backed Notes (the "Class A-8
Notes"), Auction Rate Class A-9 Student Loan-Backed Notes (the "Class A-9
Notes"), Auction Rate Class A-10 Student Loan-Backed Notes (the "Class A-10
Notes"), Auction Rate Class A-11 Student Loan-Backed Notes (the "Class A-11
Notes") and Auction Rate Class B Student Loan-Backed Notes (the "Class B Notes"
and, together with the Class A Notes, the "Notes") are issued under and secured
by the Indenture, to which Indenture and all indentures supplemental thereto
reference is hereby made for a statement of the respective rights and
obligations thereunder of the Issuer, the Indenture Trustee and the Noteholders.
The Notes are subject to all terms of the Indenture.

          The Class A-5 Notes are and will be equally and ratably secured by the
Collateral pledged as security therefor as provided in the Indenture. The Class
A-1 Notes, Class A-2 Notes, Class A-3 Notes and Class A-4 Notes are prior in
order of principal payment to the Class A-5 Notes, and the Class A-5 Notes are
prior in order of principal payment to the Auction Rate Notes and are senior to
the Class B Notes, as and to the extent provided in the Indenture.

          Principal of the Class A-5 Notes shall be payable on each Distribution
Date in an amount described on the face hereof. "Distribution Date" means the
15th day of each March, June, September and December or, if any such date is not
a Business Day, the next succeeding Business Day, commencing March 2003.

          As described on the face hereof, the entire unpaid principal amount of
this Note shall be due and payable on the Class A-5 Maturity Date.
Notwithstanding the foregoing, the entire unpaid principal amount of the Notes
shall be due and payable on the date on which (i) an Event of Default shall have
occurred and be continuing and (ii) the Indenture Trustee or the Noteholders
representing not less than a majority of the Outstanding Amount of the Notes
shall have declared the Notes to be immediately due and payable in the manner
provided in Section 5.2 of the Indenture. All principal payments on the Class
A-5 Notes shall be made pro rata to the Noteholders entitled thereto.

          Interest on the Class A-5 Notes shall be payable on each Distribution
Date on the principal amount outstanding of the Class A-5 Notes until the
principal amount thereof is paid in full, at a rate per annum equal to the Class
A-5 Rate. The "Class A-5 Rate" for each Accrual Period shall be equal to
Three-Month EURIBOR as determined on the second Business Day before the
beginning of that Accrual Period plus 0.27%.

                                       4
<Page>

          Payments of interest on this Note on each Distribution Date, together
with the installment of principal, if any, to the extent not in full payment of
this Note, shall be made by check mailed to the Person whose name appears as the
Registered Holder of this Note (or one or more Predecessor Notes) on the Note
Register on the Record Date, except that with respect to Notes registered on the
Record Date in the name of the nominee of the Clearing Agency, unless Definitive
Notes have been issued (initially, such nominee to be The Bank of New York
Depository (Nominees) Limited, payments shall be made by wire transfer in
immediately available funds to the account designated by such nominee. Such
checks shall be mailed to the Person entitled thereto at the address of such
Person as it appears on the Note Register as of the applicable Record Date
without requiring that this Note be submitted for notation of payment, and the
mailing of such check shall constitute payment of the amount thereof regardless
of whether such check is returned undelivered. Any reduction in the principal
amount of this Note (or any one or more Predecessor Notes) effected by any
payments made on any Distribution Date shall be binding upon all future
Noteholders of this Note and of any Note issued upon the registration of
transfer hereof or in exchange hereof or in lieu hereof, whether or not noted
hereon. If funds are expected to be available, as provided in the Indenture, for
payment in full of the then remaining unpaid principal amount of this Note on a
Distribution Date, then the Indenture Trustee, in the name of and on behalf of
the Issuer, shall notify the Person who was the Noteholder hereof as of the
preceding Record Date by notice mailed no later than five days prior to such
Distribution Date and the amount then due and payable shall be payable only upon
presentation and surrender of this Note at the Indenture Trustee's Corporate
Trust Office or at the office of the Indenture Trustee's agent appointed for
such purposes located in London, England.

          The Issuer shall pay interest on overdue installments of interest on
this Note at the Class A-5 Rate to the extent lawful.

          As provided in the Indenture and subject to certain limitations set
forth therein, the transfer of this Note may be registered on the Note Register
upon surrender of this Note for registration of transfer at the office or agency
designated by the Issuer pursuant to the Indenture, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Indenture Trustee duly executed by, the Noteholder hereof or his attorney duly
authorized in writing, with such signature guaranteed by an "eligible guarantor
institution" meeting the requirements of the Note Registrar, which requirements
include membership or participation in Securities Transfer Agent's Medallion
Program ("STAMP") or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP
(all in accordance with the Exchange Act), and such other documents as the
Indenture Trustee may require, and thereupon one or more new Notes of authorized
denominations and in the same aggregate principal amount shall be issued to the
designated transferee or transferees. No service charge will be charged for any
registration of transfer or exchange of this Note, but the transferor may be
required to pay a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection with any such registration of transfer or
exchange.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in the Note, covenants and agrees that no
recourse may be taken, directly or indirectly, with respect to the obligations
of the Issuer or the Indenture Trustee on the Notes or under the Indenture or
any certificate or other writing delivered in connection therewith,

                                       5
<Page>

against (i) the Indenture Trustee or the Eligible Lender Trustee in its
individual capacity, (ii) any owner of a beneficial interest in the Issuer or
(iii) any partner, owner, beneficiary, agent, officer, director or employee of
the Indenture Trustee or the Eligible Lender Trustee in its individual capacity,
any holder or owner of a beneficial interest in the Issuer, the Eligible Lender
Trustee or the Indenture Trustee or of any successor or assign thereof in its
individual capacity, except as any such Person may have expressly agreed (it
being understood that the Indenture Trustee and the Eligible Lender Trustee have
no such obligations in their individual capacity) and except that any such
partner, owner or beneficiary shall be fully liable, to the extent provided by
applicable law, for any unpaid consideration for stock, unpaid capital
contribution or failure to pay any installment or call owing to such entity.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in a Note, covenants and agrees that by
accepting the benefits of the Indenture such Noteholder or Note Owner will not
at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy,
reorganization, arrangement, insolvency, receivership or liquidation proceedings
or other proceedings under any United States Federal or state bankruptcy or
similar law in connection with any obligations relating to the Notes, the
Indenture or the other Basic Documents.

          Prior to the due presentment for registration of transfer of this
Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the
Indenture Trustee may treat the Person in whose name this Note (as of the day of
determination or as of such other date as may be specified in the Indenture) is
registered as the owner hereof for all purposes whether or not this Note be
overdue, and neither the Issuer, the Indenture Trustee nor any such agent shall
be affected by notice to the contrary.

          The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Issuer and the rights of the Noteholders under the Indenture at any time by the
Issuer with the consent of the Noteholders representing a majority of the
Outstanding Amount of all Notes at the time outstanding. The Indenture also
contains provisions permitting the Noteholders representing specified
percentages of the Outstanding Amount of the Notes, on behalf of all the
Noteholders, to waive compliance by the Issuer with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences.
Any such consent or waiver by the holder of this Note (or any one of more
Predecessor Notes) shall be conclusive and binding upon such holder and upon all
future holders of this Note and of any Note issued upon registration of transfer
hereof or in exchange hereof or in lieu hereof whether or not notation of such
consent or waiver is made upon this Note. The Indenture also permits the
Indenture Trustee to amend or waive certain terms and conditions set forth in
the Indenture without the consent of holders of the Notes issued thereunder.

          The term "Issuer" as used in this Note includes any successor to the
Issuer under the Indenture.

          The Issuer is permitted by the Indenture, under certain circumstances,
to merge or consolidate, subject to the rights of the Indenture Trustee and the
Noteholders under the Indenture.

                                       6
<Page>

          The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth.

          This Note shall be construed in accordance with the laws of the State
of New York, without reference to its conflict of law provisions, and the
obligations, rights and remedies of the parties hereunder and thereunder shall
be determined in accordance with such laws.

          No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Issuer, which is
absolute and unconditional, to pay the principal of and interest on this Note at
the times, place, and rate, and in the coin or currency, herein prescribed.

          Anything herein to the contrary notwithstanding, except as expressly
provided in the Basic Documents, neither The Bank of New York, in its individual
capacity, Chase Manhattan Bank USA, National Association in its individual
capacity, any owner of a beneficial interest in the Issuer, nor any of their
respective partners, beneficiaries, agents, officers, directors, employees or
successors or assigns shall be personally liable for, nor shall recourse be had
to any of them for, the payment of principal of or interest on, or performance
of, or omission to perform, any of the covenants, obligations or
indemnifications contained in this Note or the Indenture; it being expressly
understood that said covenants, obligations and indemnifications have been made
by the Eligible Lender Trustee for the sole purposes of binding the interests of
the Eligible Lender Trustee in the assets of the Issuer. The Noteholder of this
Note by the acceptance hereof agrees that, except as expressly provided in the
Basic Documents, in the case of an Event of Default under the Indenture, the
Noteholder shall have no claim against any of the foregoing for any deficiency,
loss or claim therefrom; PROVIDED, HOWEVER, that nothing contained herein shall
be taken to prevent recourse to, and enforcement against, the assets of the
Issuer for any and all liabilities, obligations and undertakings contained in
the Indenture or in this Note.

                                       7
<Page>

                                   ASSIGNMENT

Social Security or taxpayer I.D. or other identifying number of assignee

--------------------------------------------------------------------------------

          FOR VALUE RECEIVED, the undersigned hereby sells, assigns and
transfers unto

--------------------------------------------------------------------------------
                         (name and address of assignee)

the within Note and all rights thereunder, and hereby irrevocably constitutes
and appoints

--------------------------------------------------------------------------------
attorney, to transfer said Note on the books kept for registration thereof, with
full power of substitution in the premises.

Dated:
       ---------------

                                                                              */
                                              --------------------------------
                                                           Signature Guaranteed:

                                                                              */
                                              --------------------------------

----------
*/   NOTICE: The signature to this assignment must correspond with the name of
the registered owner as it appears on the face of the within Note in every
particular, without alteration, enlargement or any change whatever. Such
signature must be guaranteed by an "eligible guarantor institution" meeting the
requirements of the Note Registrar, which requirements include membership or
participation in STAMP or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP,
all in accordance with the Securities Exchange Act of 1934, as amended.

                                       8
<Page>

                                                                     EXHIBIT A-6
                                                                TO THE INDENTURE

                            [FORM OF CLASS A-6 NOTE]

                       SEE REVERSE FOR CERTAIN DEFINITIONS

          Unless this Note is presented by an authorized representative of The
Depository Trust Company, a New York corporation ("DTC"), to the Issuer (as
defined below) or its agent for registration of transfer, exchange or payment,
and any Note issued is registered in the name of Cede & Co. or in such other
name as is requested by an authorized representative of DTC (and any payment is
made to Cede & Co. or to such other entity as is requested by an authorized
representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
hereof, Cede & Co., has an interest herein.

          THE PRINCIPAL OF THIS NOTE IS PAYABLE IN INSTALLMENTS AS SET FORTH
HEREIN. ACCORDINGLY, THE OUTSTANDING PRINCIPAL AMOUNT OF THIS NOTE AT ANY TIME
MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. THIS NOTE IS NOT
GUARANTEED OR INSURED BY ANY GOVERNMENTAL AGENCY.

NUMBER                                             [Note Face Amount]
R-__                                               CUSIP NO. 78442G ES1
                                                   ISIN No. US78442G ES12

                                       1
<Page>

                          SLM STUDENT LOAN TRUST 2002-7

                AUCTION RATE CLASS A-6 STUDENT LOAN-BACKED NOTES

          SLM Student Loan Trust 2002-7, a statutory trust organized and
existing under the laws of the State of Delaware (herein referred to as the
"Issuer"), for value received, hereby promises to pay to CEDE & CO., or
registered assigns, the principal sum of [Note Face Amount] DOLLARS payable on
each Distribution Date in an amount equal to the result obtained by multiplying
(i) a fraction the numerator of which is [Note Face Amount] and the denominator
of which is $94,550,000 by (ii) the aggregate amount, if any, payable to Class
A-6 Noteholders on such Distribution Date in respect of principal of the Notes
pursuant to Section 3.1 of the Indenture dated as of November 1, 2002, among the
Issuer, Chase Manhattan Bank USA, National Association, a Delaware banking
corporation, as Eligible Lender Trustee on behalf of the Issuer, and The Bank of
New York, a New York banking corporation, as Indenture Trustee (the "Indenture
Trustee") (capitalized terms used but not defined herein being defined in
APPENDIX A-1 and APPENDIX A-2 to the INDENTURE, which also contains rules as to
usage that shall be applicable herein); PROVIDED, HOWEVER, that the entire
unpaid principal amount of this Note shall be due and payable on the March 2028
Distribution Date (the "Class A-6 Maturity Date").

          The Issuer shall pay interest on this Note at the rate per annum equal
to the Class A-6 Rate (as defined on the reverse hereof), on each Distribution
Date until the principal of this Note is paid or made available for payment, on
the principal amount of this Note outstanding on the preceding Distribution Date
(after giving effect to all payments of principal made on the preceding
Distribution Date), subject to certain limitations contained in Section 3.1 of
the Indenture. Interest on this Note shall accrue from and including the
preceding Distribution Date for the Class A-6 Notes (or, in the case of the
first Accrual Period, the Closing Date) to but excluding the following
Distribution Date for the Class A-6 Notes (or, in the case of the first Accrual
Period, to and including the initial Auction Date for the Class A-6 Notes) (each
an "Accrual Period"). Interest shall be calculated on the basis of the actual
number of days elapsed in each Accrual Period divided by 360. Such principal of
and interest on this Note shall be paid in the manner specified on the reverse
hereof.

          The principal of and interest on this Note are payable in such coin or
currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts. All payments made by the Issuer
with respect to this Note shall be applied first to interest due and payable on
this Note as provided above and then to the unpaid principal of this Note.

          Reference is made to the further provisions of this Note set forth on
the reverse hereof, which shall have the same effect as though fully set forth
on the face of this Note.

          Unless the certificate of authentication hereon has been executed by
the Indenture Trustee whose name appears below by manual signature, this Note
shall not be entitled to any benefit under the Indenture referred to on the
reverse hereof, or be valid or obligatory for any purpose.

                                       2
<Page>

          IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly
executed, manually or in facsimile, as of the date set forth below.

                                       SLM STUDENT LOAN TRUST 2002-7

                                       By CHASE MANHATTAN BANK USA, NATIONAL
                                            ASSOCIATION, not in its individual
                                            capacity but solely as Eligible
                                            Lender Trustee under the Trust
                                            Agreement,

                                            By:
                                                --------------------------
                                                    Authorized Signatory

Date: November 26, 2002

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

          This is one of the Notes designated above and referred to in the
within-mentioned Indenture.

                                            THE BANK OF NEW YORK,
                                            not in its individual capacity but
                                            solely as Indenture Trustee,

                                            By:
                                                --------------------------
                                                    Authorized Signatory

Date: November 26, 2002

                                       3
<Page>

                                [REVERSE OF NOTE]

          This Note is one of a duly authorized issue of Notes of the Issuer,
designated as its Auction Rate Class A-6 Student Loan-Backed Notes (the "Class
A-6 Notes"), which, together with the Issuer's Floating Rate Class A-1 Student
Loan-Backed Notes (the "Class A-1 Notes"), Floating Rate Class A-2 Student
Loan-Backed Notes (the "Class A-2 Notes"), Floating Rate Class A-3 Student
Loan-Backed Notes (the "Class A-3 Notes"), Floating Rate Class A-4 Student
Loan-Backed Notes (the "Class A-4 Notes"), Floating Rate Class A-5 Student
Loan-Backed Notes (the "Class A-5 Notes" and, together with the Class A-1 Notes,
the Class A-2 Notes, the Class A-3 Notes and the Class A-4 Notes, the "Floating
Rate Notes"), Auction Rate Class A-6 Student Loan-Backed Notes (the "Class A-6
Notes"), Auction Rate Class A-7 Student Loan-Backed Notes (the "Class A-7
Notes"), Auction Rate Class A-8 Student Loan-Backed Notes (the "Class A-8
Notes"), Auction Rate Class A-9 Student Loan-Backed Notes (the "Class A-9
Notes"), Auction Rate Class A-10 Student Loan-Backed Notes (the "Class A-10
Notes"), Auction Rate Class A-11 Student Loan-Backed Notes (the "Class A-11
Notes") and Auction Rate Class B Student Loan-Backed Notes (the "Class B Notes"
and, together with the Class A Notes, the "Notes") are issued under and secured
by the Indenture, to which Indenture and all indentures supplemental thereto
reference is hereby made for a statement of the respective rights and
obligations thereunder of the Issuer, the Indenture Trustee and the Noteholders.
The Notes are subject to all terms of the Indenture.

          The Class A-6 Notes are and will be equally and ratably secured by the
Collateral pledged as security therefor as provided in the Indenture. The
Floating Rate Notes are prior in order of principal payment to the Class A-6
Notes, interest on the Class A-6 Notes are paid pari passu and principal on the
Class A-6 Notes are paid pari passu, in lots of $50,000, with the Class A
Auction Rate Notes, and the Class A-6 Notes are senior to the Class B Notes, as
and to the extent provided in the Indenture.

          Principal of the Class A-6 Notes shall be payable on each Distribution
Date in an amount described on the face hereof. "Distribution Date" means (a)
the day following the end of each Auction Period for that class of Auction Rate
Notes and (b) for a class of Auction Rate Notes with an Auction Period in excess
of 90 days, in addition to the days referred to in clause (a), the Quarterly
Distribution Dates.

          As described on the face hereof, the entire unpaid principal amount of
this Note shall be due and payable on the Class A-6 Maturity Date.
Notwithstanding the foregoing, the entire unpaid principal amount of the Notes
shall be due and payable on the date on which (i) an Event of Default shall have
occurred and be continuing and (ii) the Indenture Trustee or the Noteholders
representing not less than a majority of the Outstanding Amount of the Notes
shall have declared the Notes to be immediately due and payable in the manner
provided in Section 5.2 of the Indenture. All principal payments on the Class
A-6 Notes shall be made pro rata to the Noteholders entitled thereto.

          Interest on the Class A-6 Notes shall be payable on each Distribution
Date on the principal amount outstanding of the Class A-6 Notes until the
principal amount thereof is paid in full, at a rate per annum equal to the Class
A-6 Rate. The "Class A-6 Rate" for each Accrual Period shall be equal to the
Auction Note Interest Rate for the Class A-6 Notes.

                                       4
<Page>

          The applicable Auction Note Interest Rate will be determined
periodically on the basis of orders placed in an Auction conducted on the
Business Day immediately preceding the first day of each Auction Period and in
such other manner as described in the Indenture.

          The Auction Period, the applicable Auction Note Interest Rate, the
method of determining the applicable Auction Note Interest Rate, the
Distribution Dates, and the Auction Procedures related thereto will be
determined upon the terms and conditions, including required notices thereof to
the beneficial owners thereof, provided in the Indenture, to which provisions
specific reference is hereby made, and all of which provisions are hereby
specifically incorporated herein by reference.

          In no event shall the applicable Auction Note Interest Rate exceed the
Maximum Rate. The excess of the amount of interest that would have accrued on
this Class A-6 Note at the lesser of the Auction Rate and the Maximum Rate
determined as if the Student Loan Rate were not a component thereof over the
amount of interest actually accrued at the Student Loan Rate, together with the
unreduced portion of any such excess from prior Accrual Periods will accrue as
the Carry-over Amount as provided in the Indenture. Any Carry-over Amount on
this Class A-6 Note and any interest accrued thereon, is due and payable only if
and to the extent as set forth in the Indenture. Any such payment obligation is
extinguished when this Class A-6 Note is paid at maturity or by earlier
redemption.

          Payments of interest on this Note on each Distribution Date, together
with the installment of principal, if any, to the extent not in full payment of
this Note, shall be made by check mailed to the Person whose name appears as the
Registered Holder of this Note (or one or more Predecessor Notes) on the Note
Register on the Record Date, except that with respect to Notes registered on the
Record Date in the name of the nominee of the Clearing Agency, unless Definitive
Notes have been issued (initially, such nominee to be Cede & Co.), payments
shall be made by wire transfer in immediately available funds to the account
designated by such nominee. Such checks shall be mailed to the Person entitled
thereto at the address of such Person as it appears on the Note Register as of
the applicable Record Date without requiring that this Note be submitted for
notation of payment, and the mailing of such check shall constitute payment of
the amount thereof regardless of whether such check is returned undelivered. Any
reduction in the principal amount of this Note (or any one or more Predecessor
Notes) effected by any payments made on any Distribution Date shall be binding
upon all future Noteholders of this Note and of any Note issued upon the
registration of transfer hereof or in exchange hereof or in lieu hereof, whether
or not noted hereon. If funds are expected to be available, as provided in the
Indenture, for payment in full of the then remaining unpaid principal amount of
this Note on a Distribution Date, then the Indenture Trustee, in the name of and
on behalf of the Issuer, shall notify the Person who was the Noteholder hereof
as of the preceding Record Date by notice mailed no later than five days prior
to such Distribution Date and the amount then due and payable shall be payable
only upon presentation and surrender of this Note at the Indenture Trustee's
Corporate Trust Office or at the office of the Indenture Trustee's agent
appointed for such purposes located in the Borough of Manhattan, The City of New
York.

          The Issuer shall pay interest on overdue installments of interest on
this Note at the Class A-6 Rate to the extent lawful.

                                       5
<Page>

          As provided in the Indenture and subject to certain limitations set
forth therein, the transfer of this Note may be registered on the Note Register
upon surrender of this Note for registration of transfer at the office or agency
designated by the Issuer pursuant to the Indenture, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Indenture Trustee duly executed by, the Noteholder hereof or his attorney duly
authorized in writing, with such signature guaranteed by an "eligible guarantor
institution" meeting the requirements of the Note Registrar, which requirements
include membership or participation in Securities Transfer Agent's Medallion
Program ("STAMP") or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP
(all in accordance with the Exchange Act), and such other documents as the
Indenture Trustee may require, and thereupon one or more new Notes of authorized
denominations and in the same aggregate principal amount shall be issued to the
designated transferee or transferees. No service charge will be charged for any
registration of transfer or exchange of this Note, but the transferor may be
required to pay a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection with any such registration of transfer or
exchange.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in the Note, covenants and agrees that no
recourse may be taken, directly or indirectly, with respect to the obligations
of the Issuer or the Indenture Trustee on the Notes or under the Indenture or
any certificate or other writing delivered in connection therewith, against (i)
the Indenture Trustee or the Eligible Lender Trustee in its individual capacity,
(ii) any owner of a beneficial interest in the Issuer or (iii) any partner,
owner, beneficiary, agent, officer, director or employee of the Indenture
Trustee or the Eligible Lender Trustee in its individual capacity, any holder or
owner of a beneficial interest in the Issuer, the Eligible Lender Trustee or the
Indenture Trustee or of any successor or assign thereof in its individual
capacity, except as any such Person may have expressly agreed (it being
understood that the Indenture Trustee and the Eligible Lender Trustee have no
such obligations in their individual capacity) and except that any such partner,
owner or beneficiary shall be fully liable, to the extent provided by applicable
law, for any unpaid consideration for stock, unpaid capital contribution or
failure to pay any installment or call owing to such entity.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in a Note, covenants and agrees that by
accepting the benefits of the Indenture such Noteholder or Note Owner will not
at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy,
reorganization, arrangement, insolvency, receivership or liquidation proceedings
or other proceedings under any United States Federal or state bankruptcy or
similar law in connection with any obligations relating to the Notes, the
Indenture or the other Basic Documents.

          Prior to the due presentment for registration of transfer of this
Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the
Indenture Trustee may treat the Person in whose name this Note (as of the day of
determination or as of such other date as may be specified in the Indenture) is
registered as the owner hereof for all purposes whether or not this Note be
overdue, and neither the Issuer, the Indenture Trustee nor any such agent shall
be affected by notice to the contrary.

                                       6
<Page>

          The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Issuer and the rights of the Noteholders under the Indenture at any time by the
Issuer with the consent of the Noteholders representing a majority of the
Outstanding Amount of all Notes at the time outstanding. The Indenture also
contains provisions permitting the Noteholders representing specified
percentages of the Outstanding Amount of the Notes, on behalf of all the
Noteholders, to waive compliance by the Issuer with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences.
Any such consent or waiver by the holder of this Note (or any one of more
Predecessor Notes) shall be conclusive and binding upon such holder and upon all
future holders of this Note and of any Note issued upon registration of transfer
hereof or in exchange hereof or in lieu hereof whether or not notation of such
consent or waiver is made upon this Note. The Indenture also permits the
Indenture Trustee to amend or waive certain terms and conditions set forth in
the Indenture without the consent of holders of the Notes issued thereunder.

          The term "Issuer" as used in this Note includes any successor to the
Issuer under the Indenture.

          The Issuer is permitted by the Indenture, under certain circumstances,
to merge or consolidate, subject to the rights of the Indenture Trustee and the
Noteholders under the Indenture.

          The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth.

          This Note shall be construed in accordance with the laws of the State
of New York, without reference to its conflict of law provisions, and the
obligations, rights and remedies of the parties hereunder and thereunder shall
be determined in accordance with such laws.

          No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Issuer, which is
absolute and unconditional, to pay the principal of and interest on this Note at
the times, place, and rate, and in the coin or currency, herein prescribed.

          Anything herein to the contrary notwithstanding, except as expressly
provided in the Basic Documents, neither The Bank of New York, in its individual
capacity, Chase Manhattan Bank USA, National Association in its individual
capacity, any owner of a beneficial interest in the Issuer, nor any of their
respective partners, beneficiaries, agents, officers, directors, employees or
successors or assigns shall be personally liable for, nor shall recourse be had
to any of them for, the payment of principal of or interest on, or performance
of, or omission to perform, any of the covenants, obligations or
indemnifications contained in this Note or the Indenture; it being expressly
understood that said covenants, obligations and indemnifications have been made
by the Eligible Lender Trustee for the sole purposes of binding the interests of
the Eligible Lender Trustee in the assets of the Issuer. The Noteholder of this
Note by the acceptance hereof agrees that, except as expressly provided in the
Basic Documents, in the case of an Event of Default under the Indenture, the
Noteholder shall have no claim against any of the foregoing for any deficiency,
loss or claim therefrom; PROVIDED, HOWEVER, that nothing contained

                                       7
<Page>

herein shall be taken to prevent recourse to, and enforcement against, the
assets of the Issuer for any and all liabilities, obligations and undertakings
contained in the Indenture or in this Note.

                                       8
<Page>

                                   ASSIGNMENT

Social Security or taxpayer I.D. or other identifying number of assignee

--------------------------------------------------------------------------------

          FOR VALUE RECEIVED, the undersigned hereby sells, assigns and
transfers unto

--------------------------------------------------------------------------------
                         (name and address of assignee)

the within Note and all rights thereunder, and hereby irrevocably constitutes
and appoints

--------------------------------------------------------------------------------
attorney, to transfer said Note on the books kept for registration thereof, with
full power of substitution in the premises.

Dated:
       ---------------

                                                                              */
                                              --------------------------------
                                                           Signature Guaranteed:

                                                                              */
                                              --------------------------------

----------
*/   NOTICE: The signature to this assignment must correspond with the name of
the registered owner as it appears on the face of the within Note in every
particular, without alteration, enlargement or any change whatever. Such
signature must be guaranteed by an "eligible guarantor institution" meeting the
requirements of the Note Registrar, which requirements include membership or
participation in STAMP or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP,
all in accordance with the Securities Exchange Act of 1934, as amended.

                                       9
<Page>

                                                                     EXHIBIT A-7
                                                                TO THE INDENTURE

                            [FORM OF CLASS A-7 NOTE]

                       SEE REVERSE FOR CERTAIN DEFINITIONS

          Unless this Note is presented by an authorized representative of The
Depository Trust Company, a New York corporation ("DTC"), to the Issuer (as
defined below) or its agent for registration of transfer, exchange or payment,
and any Note issued is registered in the name of Cede & Co. or in such other
name as is requested by an authorized representative of DTC (and any payment is
made to Cede & Co. or to such other entity as is requested by an authorized
representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
hereof, Cede & Co., has an interest herein.

          THE PRINCIPAL OF THIS NOTE IS PAYABLE IN INSTALLMENTS AS SET FORTH
HEREIN. ACCORDINGLY, THE OUTSTANDING PRINCIPAL AMOUNT OF THIS NOTE AT ANY TIME
MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. THIS NOTE IS NOT
GUARANTEED OR INSURED BY ANY GOVERNMENTAL AGENCY.

NUMBER                                              [Note Face Amount]
R-__                                                CUSIP NO. 78442G ET9
                                                    ISIN No. US78442G ET94

                                       1
<Page>

                          SLM STUDENT LOAN TRUST 2002-7

                AUCTION RATE CLASS A-7 STUDENT LOAN-BACKED NOTES

          SLM Student Loan Trust 2002-7, a statutory trust organized and
existing under the laws of the State of Delaware (herein referred to as the
"Issuer"), for value received, hereby promises to pay to CEDE & CO., or
registered assigns, the principal sum of [Note Face Amount] DOLLARS payable on
each Distribution Date in an amount equal to the result obtained by multiplying
(i) a fraction the numerator of which is [Note Face Amount] and the denominator
of which is $100,000,000 by (ii) the aggregate amount, if any, payable to Class
A-7 Noteholders on such Distribution Date in respect of principal of the Notes
pursuant to Section 3.1 of the Indenture dated as of November 1, 2002, among the
Issuer, Chase Manhattan Bank USA, National Association, a Delaware banking
corporation, as Eligible Lender Trustee on behalf of the Issuer, and The Bank of
New York, a New York banking corporation, as Indenture Trustee (the "Indenture
Trustee") (capitalized terms used but not defined herein being defined in
APPENDIX A-1 and APPENDIX A-2 to the INDENTURE, which also contains rules as to
usage that shall be applicable herein); PROVIDED, HOWEVER, that the entire
unpaid principal amount of this Note shall be due and payable on the March 2028
Distribution Date (the "Class A-7 Maturity Date").

          The Issuer shall pay interest on this Note at the rate per annum equal
to the Class A-7 Rate (as defined on the reverse hereof), on each Distribution
Date until the principal of this Note is paid or made available for payment, on
the principal amount of this Note outstanding on the preceding Distribution Date
(after giving effect to all payments of principal made on the preceding
Distribution Date), subject to certain limitations contained in Section 3.1 of
the Indenture. Interest on this Note shall accrue from and including the
preceding Distribution Date for the Class A-7 Notes (or, in the case of the
first Accrual Period, the Closing Date) to but excluding the following
Distribution Date for the Class A-7 Notes (or, in the case of the first Accrual
Period, to and including the initial Auction Date for the Class A-7 Notes) (each
an "Accrual Period"). Interest shall be calculated on the basis of the actual
number of days elapsed in each Accrual Period divided by 360. Such principal of
and interest on this Note shall be paid in the manner specified on the reverse
hereof.

          The principal of and interest on this Note are payable in such coin or
currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts. All payments made by the Issuer
with respect to this Note shall be applied first to interest due and payable on
this Note as provided above and then to the unpaid principal of this Note.

          Reference is made to the further provisions of this Note set forth on
the reverse hereof, which shall have the same effect as though fully set forth
on the face of this Note.

          Unless the certificate of authentication hereon has been executed by
the Indenture Trustee whose name appears below by manual signature, this Note
shall not be entitled to any benefit under the Indenture referred to on the
reverse hereof, or be valid or obligatory for any purpose.

                                       2
<Page>

          IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly
executed, manually or in facsimile, as of the date set forth below.

                                       SLM STUDENT LOAN TRUST 2002-7

                                       By CHASE MANHATTAN BANK USA, NATIONAL
                                            ASSOCIATION, not in its individual
                                            capacity but solely as Eligible
                                            Lender Trustee under the Trust
                                            Agreement,

                                            By:
                                                ---------------------------
                                                    Authorized Signatory

Date: November 26, 2002

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

          This is one of the Notes designated above and referred to in the
within-mentioned Indenture.

                                            THE BANK OF NEW YORK,
                                            not in its individual capacity but
                                            solely as Indenture Trustee,

                                            By:
                                                ---------------------------
                                                    Authorized Signatory

Date: November 26, 2002

                                       3
<Page>

                                [REVERSE OF NOTE]

          This Note is one of a duly authorized issue of Notes of the Issuer,
designated as its Auction Rate Class A-7 Student Loan-Backed Notes (the "Class
A-7 Notes"), which, together with the Issuer's Floating Rate Class A-1 Student
Loan-Backed Notes (the "Class A-1 Notes"), Floating Rate Class A-2 Student
Loan-Backed Notes (the "Class A-2 Notes"), Floating Rate Class A-3 Student
Loan-Backed Notes (the "Class A-3 Notes"), Floating Rate Class A-4 Student
Loan-Backed Notes (the "Class A-4 Notes"), Floating Rate Class A-5 Student
Loan-Backed Notes (the "Class A-5 Notes" and, together with the Class A-1 Notes,
the Class A-2 Notes, the Class A-3 Notes and the Class A-4 Notes, the "Floating
Rate Notes"), Auction Rate Class A-6 Student Loan-Backed Notes (the "Class A-6
Notes"), Auction Rate Class A-7 Student Loan-Backed Notes (the "Class A-7
Notes"), Auction Rate Class A-8 Student Loan-Backed Notes (the "Class A-8
Notes"), Auction Rate Class A-9 Student Loan-Backed Notes (the "Class A-9
Notes"), Auction Rate Class A-10 Student Loan-Backed Notes (the "Class A-10
Notes"), Auction Rate Class A-11 Student Loan-Backed Notes (the "Class A-11
Notes") and Auction Rate Class B Student Loan-Backed Notes (the "Class B Notes"
and, together with the Class A Notes, the "Notes") are issued under and secured
by the Indenture, to which Indenture and all indentures supplemental thereto
reference is hereby made for a statement of the respective rights and
obligations thereunder of the Issuer, the Indenture Trustee and the Noteholders.
The Notes are subject to all terms of the Indenture.

          The Class A-7 Notes are and will be equally and ratably secured by the
Collateral pledged as security therefor as provided in the Indenture. The
Floating Rate Notes are prior in order of principal payment to the Class A-7
Notes, interest on the Class A-7 Notes are paid pari passu and principal on the
Class A-7 Notes are paid pari passu, in lots of $50,000, with the Class A
Auction Rate Notes, and the Class A-7 Notes are senior to the Class B Notes, as
and to the extent provided in the Indenture.

          Principal of the Class A-7 Notes shall be payable on each Distribution
Date in an amount described on the face hereof. "Distribution Date" means (a)
the day following the end of each Auction Period for that class of Auction Rate
Notes and (b) for a class of Auction Rate Notes with an Auction Period in excess
of 90 days, in addition to the days referred to in clause (a), the Quarterly
Distribution Dates.

          As described on the face hereof, the entire unpaid principal amount of
this Note shall be due and payable on the Class A-7 Maturity Date.
Notwithstanding the foregoing, the entire unpaid principal amount of the Notes
shall be due and payable on the date on which (i) an Event of Default shall have
occurred and be continuing and (ii) the Indenture Trustee or the Noteholders
representing not less than a majority of the Outstanding Amount of the Notes
shall have declared the Notes to be immediately due and payable in the manner
provided in Section 5.2 of the Indenture. All principal payments on the Class
A-7 Notes shall be made pro rata to the Noteholders entitled thereto.

          Interest on the Class A-7 Notes shall be payable on each Distribution
Date on the principal amount outstanding of the Class A-7 Notes until the
principal amount thereof is paid in full, at a rate per annum equal to the Class
A-7 Rate. The "Class A-7 Rate" for each Accrual Period shall be equal to the
Auction Note Interest Rate for the Class A-7 Notes.

                                       4
<Page>

          The applicable Auction Note Interest Rate will be determined
periodically on the basis of orders placed in an Auction conducted on the
Business Day immediately preceding the first day of each Auction Period and in
such other manner as described in the Indenture.

          The Auction Period, the applicable Auction Note Interest Rate, the
method of determining the applicable Auction Note Interest Rate, the
Distribution Dates, and the Auction Procedures related thereto will be
determined upon the terms and conditions, including required notices thereof to
the beneficial owners thereof, provided in the Indenture, to which provisions
specific reference is hereby made, and all of which provisions are hereby
specifically incorporated herein by reference.

          In no event shall the applicable Auction Note Interest Rate exceed the
Maximum Rate. The excess of the amount of interest that would have accrued on
this Class A-7 Note at the lesser of the Auction Rate and the Maximum Rate
determined as if the Student Loan Rate were not a component thereof over the
amount of interest actually accrued at the Student Loan Rate, together with the
unreduced portion of any such excess from prior Accrual Periods will accrue as
the Carry-over Amount as provided in the Indenture. Any Carry-over Amount on
this Class A-7 Note and any interest accrued thereon, is due and payable only if
and to the extent as set forth in the Indenture. Any such payment obligation is
extinguished when this Class A-7 Note is paid at maturity or by earlier
redemption.

          Payments of interest on this Note on each Distribution Date, together
with the installment of principal, if any, to the extent not in full payment of
this Note, shall be made by check mailed to the Person whose name appears as the
Registered Holder of this Note (or one or more Predecessor Notes) on the Note
Register on the Record Date, except that with respect to Notes registered on the
Record Date in the name of the nominee of the Clearing Agency, unless Definitive
Notes have been issued (initially, such nominee to be Cede & Co.), payments
shall be made by wire transfer in immediately available funds to the account
designated by such nominee. Such checks shall be mailed to the Person entitled
thereto at the address of such Person as it appears on the Note Register as of
the applicable Record Date without requiring that this Note be submitted for
notation of payment, and the mailing of such check shall constitute payment of
the amount thereof regardless of whether such check is returned undelivered. Any
reduction in the principal amount of this Note (or any one or more Predecessor
Notes) effected by any payments made on any Distribution Date shall be binding
upon all future Noteholders of this Note and of any Note issued upon the
registration of transfer hereof or in exchange hereof or in lieu hereof, whether
or not noted hereon. If funds are expected to be available, as provided in the
Indenture, for payment in full of the then remaining unpaid principal amount of
this Note on a Distribution Date, then the Indenture Trustee, in the name of and
on behalf of the Issuer, shall notify the Person who was the Noteholder hereof
as of the preceding Record Date by notice mailed no later than five days prior
to such Distribution Date and the amount then due and payable shall be payable
only upon presentation and surrender of this Note at the Indenture Trustee's
Corporate Trust Office or at the office of the Indenture Trustee's agent
appointed for such purposes located in the Borough of Manhattan, The City of New
York.

          The Issuer shall pay interest on overdue installments of interest on
this Note at the Class A-7 Rate to the extent lawful.

                                       5
<Page>

          As provided in the Indenture and subject to certain limitations set
forth therein, the transfer of this Note may be registered on the Note Register
upon surrender of this Note for registration of transfer at the office or agency
designated by the Issuer pursuant to the Indenture, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Indenture Trustee duly executed by, the Noteholder hereof or his attorney duly
authorized in writing, with such signature guaranteed by an "eligible guarantor
institution" meeting the requirements of the Note Registrar, which requirements
include membership or participation in Securities Transfer Agent's Medallion
Program ("STAMP") or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP
(all in accordance with the Exchange Act), and such other documents as the
Indenture Trustee may require, and thereupon one or more new Notes of authorized
denominations and in the same aggregate principal amount shall be issued to the
designated transferee or transferees. No service charge will be charged for any
registration of transfer or exchange of this Note, but the transferor may be
required to pay a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection with any such registration of transfer or
exchange.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in the Note, covenants and agrees that no
recourse may be taken, directly or indirectly, with respect to the obligations
of the Issuer or the Indenture Trustee on the Notes or under the Indenture or
any certificate or other writing delivered in connection therewith, against (i)
the Indenture Trustee or the Eligible Lender Trustee in its individual capacity,
(ii) any owner of a beneficial interest in the Issuer or (iii) any partner,
owner, beneficiary, agent, officer, director or employee of the Indenture
Trustee or the Eligible Lender Trustee in its individual capacity, any holder or
owner of a beneficial interest in the Issuer, the Eligible Lender Trustee or the
Indenture Trustee or of any successor or assign thereof in its individual
capacity, except as any such Person may have expressly agreed (it being
understood that the Indenture Trustee and the Eligible Lender Trustee have no
such obligations in their individual capacity) and except that any such partner,
owner or beneficiary shall be fully liable, to the extent provided by applicable
law, for any unpaid consideration for stock, unpaid capital contribution or
failure to pay any installment or call owing to such entity.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in a Note, covenants and agrees that by
accepting the benefits of the Indenture such Noteholder or Note Owner will not
at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy,
reorganization, arrangement, insolvency, receivership or liquidation proceedings
or other proceedings under any United States Federal or state bankruptcy or
similar law in connection with any obligations relating to the Notes, the
Indenture or the other Basic Documents.

          Prior to the due presentment for registration of transfer of this
Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the
Indenture Trustee may treat the Person in whose name this Note (as of the day of
determination or as of such other date as may be specified in the Indenture) is
registered as the owner hereof for all purposes whether or not this Note be
overdue, and neither the Issuer, the Indenture Trustee nor any such agent shall
be affected by notice to the contrary.

                                       6
<Page>

          The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Issuer and the rights of the Noteholders under the Indenture at any time by the
Issuer with the consent of the Noteholders representing a majority of the
Outstanding Amount of all Notes at the time outstanding. The Indenture also
contains provisions permitting the Noteholders representing specified
percentages of the Outstanding Amount of the Notes, on behalf of all the
Noteholders, to waive compliance by the Issuer with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences.
Any such consent or waiver by the holder of this Note (or any one of more
Predecessor Notes) shall be conclusive and binding upon such holder and upon all
future holders of this Note and of any Note issued upon registration of transfer
hereof or in exchange hereof or in lieu hereof whether or not notation of such
consent or waiver is made upon this Note. The Indenture also permits the
Indenture Trustee to amend or waive certain terms and conditions set forth in
the Indenture without the consent of holders of the Notes issued thereunder.

          The term "Issuer" as used in this Note includes any successor to the
Issuer under the Indenture.

          The Issuer is permitted by the Indenture, under certain circumstances,
to merge or consolidate, subject to the rights of the Indenture Trustee and the
Noteholders under the Indenture.

          The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth.

          This Note shall be construed in accordance with the laws of the State
of New York, without reference to its conflict of law provisions, and the
obligations, rights and remedies of the parties hereunder and thereunder shall
be determined in accordance with such laws.

          No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Issuer, which is
absolute and unconditional, to pay the principal of and interest on this Note at
the times, place, and rate, and in the coin or currency, herein prescribed.

          Anything herein to the contrary notwithstanding, except as expressly
provided in the Basic Documents, neither The Bank of New York, in its individual
capacity, Chase Manhattan Bank USA, National Association in its individual
capacity, any owner of a beneficial interest in the Issuer, nor any of their
respective partners, beneficiaries, agents, officers, directors, employees or
successors or assigns shall be personally liable for, nor shall recourse be had
to any of them for, the payment of principal of or interest on, or performance
of, or omission to perform, any of the covenants, obligations or
indemnifications contained in this Note or the Indenture; it being expressly
understood that said covenants, obligations and indemnifications have been made
by the Eligible Lender Trustee for the sole purposes of binding the interests of
the Eligible Lender Trustee in the assets of the Issuer. The Noteholder of this
Note by the acceptance hereof agrees that, except as expressly provided in the
Basic Documents, in the case of an Event of Default under the Indenture, the
Noteholder shall have no claim against any of the foregoing for any deficiency,
loss or claim therefrom; PROVIDED, HOWEVER, that nothing contained

                                       7
<Page>

herein shall be taken to prevent recourse to, and enforcement against, the
assets of the Issuer for any and all liabilities, obligations and undertakings
contained in the Indenture or in this Note.

                                       8
<Page>

                                   ASSIGNMENT

Social Security or taxpayer I.D. or other identifying number of assignee

--------------------------------------------------------------------------------

          FOR VALUE RECEIVED, the undersigned hereby sells, assigns and
transfers unto

--------------------------------------------------------------------------------
                         (name and address of assignee)

the within Note and all rights thereunder, and hereby irrevocably constitutes
and appoints

--------------------------------------------------------------------------------
attorney, to transfer said Note on the books kept for registration thereof, with
full power of substitution in the premises.

Dated:
       ---------------

                                                                              */
                                              --------------------------------
                                                           Signature Guaranteed:

                                                                              */
                                              --------------------------------

----------
*/   NOTICE: The signature to this assignment must correspond with the name of
the registered owner as it appears on the face of the within Note in every
particular, without alteration, enlargement or any change whatever. Such
signature must be guaranteed by an "eligible guarantor institution" meeting the
requirements of the Note Registrar, which requirements include membership or
participation in STAMP or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP,
all in accordance with the Securities Exchange Act of 1934, as amended.

                                       9
<Page>

                                                                     EXHIBIT A-8
                                                                TO THE INDENTURE

                            [FORM OF CLASS A-8 NOTE]

                       SEE REVERSE FOR CERTAIN DEFINITIONS

          Unless this Note is presented by an authorized representative of The
Depository Trust Company, a New York corporation ("DTC"), to the Issuer (as
defined below) or its agent for registration of transfer, exchange or payment,
and any Note issued is registered in the name of Cede & Co. or in such other
name as is requested by an authorized representative of DTC (and any payment is
made to Cede & Co. or to such other entity as is requested by an authorized
representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
hereof, Cede & Co., has an interest herein.

          THE PRINCIPAL OF THIS NOTE IS PAYABLE IN INSTALLMENTS AS SET FORTH
HEREIN. ACCORDINGLY, THE OUTSTANDING PRINCIPAL AMOUNT OF THIS NOTE AT ANY TIME
MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. THIS NOTE IS NOT
GUARANTEED OR INSURED BY ANY GOVERNMENTAL AGENCY.

NUMBER                                              [Note Face Amount]
R-__                                                CUSIP NO. 78442G EU6
                                                    ISIN No. US78442G EU67

                                       1
<Page>

                          SLM STUDENT LOAN TRUST 2002-7

                AUCTION RATE CLASS A-8 STUDENT LOAN-BACKED NOTES

          SLM Student Loan Trust 2002-7, a statutory trust organized and
existing under the laws of the State of Delaware (herein referred to as the
"Issuer"), for value received, hereby promises to pay to CEDE & CO., or
registered assigns, the principal sum of [Note Face Amount] DOLLARS payable on
each Distribution Date in an amount equal to the result obtained by multiplying
(i) a fraction the numerator of which is [Note Face Amount] and the denominator
of which is $100,000,000 by (ii) the aggregate amount, if any, payable to Class
A-8 Noteholders on such Distribution Date in respect of principal of the Notes
pursuant to Section 3.1 of the Indenture dated as of November 1, 2002, among the
Issuer, Chase Manhattan Bank USA, National Association, a Delaware banking
corporation, as Eligible Lender Trustee on behalf of the Issuer, and The Bank of
New York, a New York banking corporation, as Indenture Trustee (the "Indenture
Trustee") (capitalized terms used but not defined herein being defined in
APPENDIX A-1 and APPENDIX A-2 to the INDENTURE, which also contains rules as to
usage that shall be applicable herein); PROVIDED, HOWEVER, that the entire
unpaid principal amount of this Note shall be due and payable on the March 2028
Distribution Date (the "Class A-8 Maturity Date").

          The Issuer shall pay interest on this Note at the rate per annum equal
to the Class A-8 Rate (as defined on the reverse hereof), on each Distribution
Date until the principal of this Note is paid or made available for payment, on
the principal amount of this Note outstanding on the preceding Distribution Date
(after giving effect to all payments of principal made on the preceding
Distribution Date), subject to certain limitations contained in Section 3.1 of
the Indenture. Interest on this Note shall accrue from and including the
preceding Distribution Date for the Class A-8 Notes (or, in the case of the
first Accrual Period, the Closing Date) to but excluding the following
Distribution Date for the Class A-8 Notes (or, in the case of the first Accrual
Period, to and including the initial Auction Date for the Class A-8 Notes) (each
an "Accrual Period"). Interest shall be calculated on the basis of the actual
number of days elapsed in each Accrual Period divided by 360. Such principal of
and interest on this Note shall be paid in the manner specified on the reverse
hereof.

          The principal of and interest on this Note are payable in such coin or
currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts. All payments made by the Issuer
with respect to this Note shall be applied first to interest due and payable on
this Note as provided above and then to the unpaid principal of this Note.

          Reference is made to the further provisions of this Note set forth on
the reverse hereof, which shall have the same effect as though fully set forth
on the face of this Note.

          Unless the certificate of authentication hereon has been executed by
the Indenture Trustee whose name appears below by manual signature, this Note
shall not be entitled to any benefit under the Indenture referred to on the
reverse hereof, or be valid or obligatory for any purpose.

                                       2
<Page>

          IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly
executed, manually or in facsimile, as of the date set forth below.

                                       SLM STUDENT LOAN TRUST 2002-7

                                       By CHASE MANHATTAN BANK USA, NATIONAL
                                            ASSOCIATION, not in its individual
                                            capacity but solely as Eligible
                                            Lender Trustee under the Trust
                                            Agreement,

                                            By:
                                                ---------------------------
                                                   Authorized Signatory

Date: November 26, 2002

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

          This is one of the Notes designated above and referred to in the
within-mentioned Indenture.

                                            THE BANK OF NEW YORK,
                                            not in its individual capacity but
                                            solely as Indenture Trustee,

                                            By:
                                                ---------------------------
                                                   Authorized Signatory

Date: November 26, 2002

                                       3
<Page>

                                [REVERSE OF NOTE]

          This Note is one of a duly authorized issue of Notes of the Issuer,
designated as its Auction Rate Class A-8 Student Loan-Backed Notes (the "Class
A-8 Notes"), which, together with the Issuer's Floating Rate Class A-1 Student
Loan-Backed Notes (the "Class A-1 Notes"), Floating Rate Class A-2 Student
Loan-Backed Notes (the "Class A-2 Notes"), Floating Rate Class A-3 Student
Loan-Backed Notes (the "Class A-3 Notes"), Floating Rate Class A-4 Student
Loan-Backed Notes (the "Class A-4 Notes"), Floating Rate Class A-5 Student
Loan-Backed Notes (the "Class A-5 Notes" and, together with the Class A-1 Notes,
the Class A-2 Notes, the Class A-3 Notes and the Class A-4 Notes, the "Floating
Rate Notes"), Auction Rate Class A-6 Student Loan-Backed Notes (the "Class A-6
Notes"), Auction Rate Class A-7 Student Loan-Backed Notes (the "Class A-7
Notes"), Auction Rate Class A-8 Student Loan-Backed Notes (the "Class A-8
Notes"), Auction Rate Class A-9 Student Loan-Backed Notes (the "Class A-9
Notes"), Auction Rate Class A-10 Student Loan-Backed Notes (the "Class A-10
Notes"), Auction Rate Class A-11 Student Loan-Backed Notes (the "Class A-11
Notes") and Auction Rate Class B Student Loan-Backed Notes (the "Class B Notes"
and, together with the Class A Notes, the "Notes") are issued under and secured
by the Indenture, to which Indenture and all indentures supplemental thereto
reference is hereby made for a statement of the respective rights and
obligations thereunder of the Issuer, the Indenture Trustee and the Noteholders.
The Notes are subject to all terms of the Indenture.

          The Class A-8 Notes are and will be equally and ratably secured by the
Collateral pledged as security therefor as provided in the Indenture. The
Floating Rate Notes are prior in order of principal payment to the Class A-8
Notes, interest on the Class A-8 Notes are paid pari passu and principal on the
Class A-8 Notes are paid pari passu, in lots of $50,000, with the Class A
Auction Rate Notes, and the Class A-8 Notes are senior to the Class B Notes, as
and to the extent provided in the Indenture.

          Principal of the Class A-8 Notes shall be payable on each Distribution
Date in an amount described on the face hereof. "Distribution Date" means (a)
the day following the end of each Auction Period for that class of Auction Rate
Notes and (b) for a class of Auction Rate Notes with an Auction Period in excess
of 90 days, in addition to the days referred to in clause (a), the Quarterly
Distribution Dates.

          As described on the face hereof, the entire unpaid principal amount of
this Note shall be due and payable on the Class A-8 Maturity Date.
Notwithstanding the foregoing, the entire unpaid principal amount of the Notes
shall be due and payable on the date on which (i) an Event of Default shall have
occurred and be continuing and (ii) the Indenture Trustee or the Noteholders
representing not less than a majority of the Outstanding Amount of the Notes
shall have declared the Notes to be immediately due and payable in the manner
provided in Section 5.2 of the Indenture. All principal payments on the Class
A-8 Notes shall be made pro rata to the Noteholders entitled thereto.

          Interest on the Class A-8 Notes shall be payable on each Distribution
Date on the principal amount outstanding of the Class A-8 Notes until the
principal amount thereof is paid in full, at a rate per annum equal to the Class
A-8 Rate. The "Class A-8 Rate" for each Accrual Period shall be equal to the
Auction Note Interest Rate for the Class A-8 Notes. The applicable

                                       4
<Page>

Auction Note Interest Rate will be determined periodically on the basis of
orders placed in an Auction conducted on the Business Day immediately preceding
the first day of each Auction Period and in such other manner as described in
the Indenture.

          The Auction Period, the applicable Auction Note Interest Rate, the
method of determining the applicable Auction Note Interest Rate, the
Distribution Dates, and the Auction Procedures related thereto will be
determined upon the terms and conditions, including required notices thereof to
the beneficial owners thereof, provided in the Indenture, to which provisions
specific reference is hereby made, and all of which provisions are hereby
specifically incorporated herein by reference.

          In no event shall the applicable Auction Note Interest Rate exceed the
Maximum Rate. The excess of the amount of interest that would have accrued on
this Class A-8 Note at the lesser of the Auction Rate and the Maximum Rate
determined as if the Student Loan Rate were not a component thereof over the
amount of interest actually accrued at the Student Loan Rate, together with the
unreduced portion of any such excess from prior Accrual Periods will accrue as
the Carry-over Amount as provided in the Indenture. Any Carry-over Amount on
this Class A-8 Note and any interest accrued thereon, is due and payable only if
and to the extent as set forth in the Indenture. Any such payment obligation is
extinguished when this Class A-8 Note is paid at maturity or by earlier
redemption.

          Payments of interest on this Note on each Distribution Date, together
with the installment of principal, if any, to the extent not in full payment of
this Note, shall be made by check mailed to the Person whose name appears as the
Registered Holder of this Note (or one or more Predecessor Notes) on the Note
Register on the Record Date, except that with respect to Notes registered on the
Record Date in the name of the nominee of the Clearing Agency, unless Definitive
Notes have been issued (initially, such nominee to be Cede & Co.), payments
shall be made by wire transfer in immediately available funds to the account
designated by such nominee. Such checks shall be mailed to the Person entitled
thereto at the address of such Person as it appears on the Note Register as of
the applicable Record Date without requiring that this Note be submitted for
notation of payment, and the mailing of such check shall constitute payment of
the amount thereof regardless of whether such check is returned undelivered. Any
reduction in the principal amount of this Note (or any one or more Predecessor
Notes) effected by any payments made on any Distribution Date shall be binding
upon all future Noteholders of this Note and of any Note issued upon the
registration of transfer hereof or in exchange hereof or in lieu hereof, whether
or not noted hereon. If funds are expected to be available, as provided in the
Indenture, for payment in full of the then remaining unpaid principal amount of
this Note on a Distribution Date, then the Indenture Trustee, in the name of and
on behalf of the Issuer, shall notify the Person who was the Noteholder hereof
as of the preceding Record Date by notice mailed no later than five days prior
to such Distribution Date and the amount then due and payable shall be payable
only upon presentation and surrender of this Note at the Indenture Trustee's
Corporate Trust Office or at the office of the Indenture Trustee's agent
appointed for such purposes located in the Borough of Manhattan, The City of New
York.

          The Issuer shall pay interest on overdue installments of interest on
this Note at the Class A-8 Rate to the extent lawful.

                                       5
<Page>

          As provided in the Indenture and subject to certain limitations set
forth therein, the transfer of this Note may be registered on the Note Register
upon surrender of this Note for registration of transfer at the office or agency
designated by the Issuer pursuant to the Indenture, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Indenture Trustee duly executed by, the Noteholder hereof or his attorney duly
authorized in writing, with such signature guaranteed by an "eligible guarantor
institution" meeting the requirements of the Note Registrar, which requirements
include membership or participation in Securities Transfer Agent's Medallion
Program ("STAMP") or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP
(all in accordance with the Exchange Act), and such other documents as the
Indenture Trustee may require, and thereupon one or more new Notes of authorized
denominations and in the same aggregate principal amount shall be issued to the
designated transferee or transferees. No service charge will be charged for any
registration of transfer or exchange of this Note, but the transferor may be
required to pay a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection with any such registration of transfer or
exchange.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in the Note, covenants and agrees that no
recourse may be taken, directly or indirectly, with respect to the obligations
of the Issuer or the Indenture Trustee on the Notes or under the Indenture or
any certificate or other writing delivered in connection therewith, against (i)
the Indenture Trustee or the Eligible Lender Trustee in its individual capacity,
(ii) any owner of a beneficial interest in the Issuer or (iii) any partner,
owner, beneficiary, agent, officer, director or employee of the Indenture
Trustee or the Eligible Lender Trustee in its individual capacity, any holder or
owner of a beneficial interest in the Issuer, the Eligible Lender Trustee or the
Indenture Trustee or of any successor or assign thereof in its individual
capacity, except as any such Person may have expressly agreed (it being
understood that the Indenture Trustee and the Eligible Lender Trustee have no
such obligations in their individual capacity) and except that any such partner,
owner or beneficiary shall be fully liable, to the extent provided by applicable
law, for any unpaid consideration for stock, unpaid capital contribution or
failure to pay any installment or call owing to such entity.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in a Note, covenants and agrees that by
accepting the benefits of the Indenture such Noteholder or Note Owner will not
at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy,
reorganization, arrangement, insolvency, receivership or liquidation proceedings
or other proceedings under any United States Federal or state bankruptcy or
similar law in connection with any obligations relating to the Notes, the
Indenture or the other Basic Documents.

          Prior to the due presentment for registration of transfer of this
Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the
Indenture Trustee may treat the Person in whose name this Note (as of the day of
determination or as of such other date as may be specified in the Indenture) is
registered as the owner hereof for all purposes whether or not this Note be
overdue, and neither the Issuer, the Indenture Trustee nor any such agent shall
be affected by notice to the contrary.

                                       6
<Page>

          The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Issuer and the rights of the Noteholders under the Indenture at any time by the
Issuer with the consent of the Noteholders representing a majority of the
Outstanding Amount of all Notes at the time outstanding. The Indenture also
contains provisions permitting the Noteholders representing specified
percentages of the Outstanding Amount of the Notes, on behalf of all the
Noteholders, to waive compliance by the Issuer with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences.
Any such consent or waiver by the holder of this Note (or any one of more
Predecessor Notes) shall be conclusive and binding upon such holder and upon all
future holders of this Note and of any Note issued upon registration of transfer
hereof or in exchange hereof or in lieu hereof whether or not notation of such
consent or waiver is made upon this Note. The Indenture also permits the
Indenture Trustee to amend or waive certain terms and conditions set forth in
the Indenture without the consent of holders of the Notes issued thereunder.

          The term "Issuer" as used in this Note includes any successor to the
Issuer under the Indenture.

          The Issuer is permitted by the Indenture, under certain circumstances,
to merge or consolidate, subject to the rights of the Indenture Trustee and the
Noteholders under the Indenture.

          The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth.

          This Note shall be construed in accordance with the laws of the State
of New York, without reference to its conflict of law provisions, and the
obligations, rights and remedies of the parties hereunder and thereunder shall
be determined in accordance with such laws.

          No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Issuer, which is
absolute and unconditional, to pay the principal of and interest on this Note at
the times, place, and rate, and in the coin or currency, herein prescribed.

          Anything herein to the contrary notwithstanding, except as expressly
provided in the Basic Documents, neither The Bank of New York, in its individual
capacity, Chase Manhattan Bank USA, National Association in its individual
capacity, any owner of a beneficial interest in the Issuer, nor any of their
respective partners, beneficiaries, agents, officers, directors, employees or
successors or assigns shall be personally liable for, nor shall recourse be had
to any of them for, the payment of principal of or interest on, or performance
of, or omission to perform, any of the covenants, obligations or
indemnifications contained in this Note or the Indenture; it being expressly
understood that said covenants, obligations and indemnifications have been made
by the Eligible Lender Trustee for the sole purposes of binding the interests of
the Eligible Lender Trustee in the assets of the Issuer. The Noteholder of this
Note by the acceptance hereof agrees that, except as expressly provided in the
Basic Documents, in the case of an Event of Default under the Indenture, the
Noteholder shall have no claim against any of the foregoing for any deficiency,
loss or claim therefrom; PROVIDED, HOWEVER, that nothing contained

                                       7
<Page>

herein shall be taken to prevent recourse to, and enforcement against, the
assets of the Issuer for any and all liabilities, obligations and undertakings
contained in the Indenture or in this Note.

                                       8
<Page>

                                   ASSIGNMENT

Social Security or taxpayer I.D. or other identifying number of assignee

--------------------------------------------------------------------------------

          FOR VALUE RECEIVED, the undersigned hereby sells, assigns and
transfers unto

--------------------------------------------------------------------------------
                         (name and address of assignee)

the within Note and all rights thereunder, and hereby irrevocably constitutes
and appoints

--------------------------------------------------------------------------------
attorney, to transfer said Note on the books kept for registration thereof, with
full power of substitution in the premises.

Dated:
       ---------------

                                                                              */
                                              --------------------------------
                                                           Signature Guaranteed:

                                                                              */
                                              --------------------------------

----------
*/   NOTICE: The signature to this assignment must correspond with the name of
the registered owner as it appears on the face of the within Note in every
particular, without alteration, enlargement or any change whatever. Such
signature must be guaranteed by an "eligible guarantor institution" meeting the
requirements of the Note Registrar, which requirements include membership or
participation in STAMP or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP,
all in accordance with the Securities Exchange Act of 1934, as amended.

                                       9
<Page>

                                                                     EXHIBIT A-9
                                                                TO THE INDENTURE

                            [FORM OF CLASS A-9 NOTE]

                       SEE REVERSE FOR CERTAIN DEFINITIONS


          Unless this Note is presented by an authorized representative of The
Depository Trust Company, a New York corporation ("DTC"), to the Issuer (as
defined below) or its agent for registration of transfer, exchange or payment,
and any Note issued is registered in the name of Cede & Co. or in such other
name as is requested by an authorized representative of DTC (and any payment is
made to Cede & Co. or to such other entity as is requested by an authorized
representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
hereof, Cede & Co., has an interest herein.

          THE PRINCIPAL OF THIS NOTE IS PAYABLE IN INSTALLMENTS AS SET FORTH
HEREIN. ACCORDINGLY, THE OUTSTANDING PRINCIPAL AMOUNT OF THIS NOTE AT ANY TIME
MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. THIS NOTE IS NOT
GUARANTEED OR INSURED BY ANY GOVERNMENTAL AGENCY.

NUMBER                                              [Note Face Amount]
R-__                                                CUSIP NO. 78442G EV4
                                                    ISIN No. US78442G EV41

                                       1
<Page>

                          SLM STUDENT LOAN TRUST 2002-7

                AUCTION RATE CLASS A-9 STUDENT LOAN-BACKED NOTES

          SLM Student Loan Trust 2002-7, a statutory trust organized and
existing under the laws of the State of Delaware (herein referred to as the
"Issuer"), for value received, hereby promises to pay to CEDE & CO., or
registered assigns, the principal sum of [Note Face Amount] DOLLARS payable on
each Distribution Date in an amount equal to the result obtained by multiplying
(i) a fraction the numerator of which is [Note Face Amount] and the denominator
of which is $100,000,000 by (ii) the aggregate amount, if any, payable to Class
A-9 Noteholders on such Distribution Date in respect of principal of the Notes
pursuant to Section 3.1 of the Indenture dated as of November 1, 2002, among the
Issuer, Chase Manhattan Bank USA, National Association, a Delaware banking
corporation, as Eligible Lender Trustee on behalf of the Issuer, and The Bank of
New York, a New York banking corporation, as Indenture Trustee (the "Indenture
Trustee") (capitalized terms used but not defined herein being defined in
APPENDIX A-1 and APPENDIX A-2 to the INDENTURE, which also contains rules as to
usage that shall be applicable herein); PROVIDED, HOWEVER, that the entire
unpaid principal amount of this Note shall be due and payable on the March 2028
Distribution Date (the "Class A-9 Maturity Date").

          The Issuer shall pay interest on this Note at the rate per annum equal
to the Class A-9 Rate (as defined on the reverse hereof), on each Distribution
Date until the principal of this Note is paid or made available for payment, on
the principal amount of this Note outstanding on the preceding Distribution Date
(after giving effect to all payments of principal made on the preceding
Distribution Date), subject to certain limitations contained in Section 3.1 of
the Indenture. Interest on this Note shall accrue from and including the
preceding Distribution Date for the Class A-9 Notes (or, in the case of the
first Accrual Period, the Closing Date) to but excluding the following
Distribution Date for the Class A-9 Notes (or, in the case of the first Accrual
Period, to and including the initial Auction Date for the Class A-9 Notes) (each
an "Accrual Period"). Interest shall be calculated on the basis of the actual
number of days elapsed in each Accrual Period divided by 360. Such principal of
and interest on this Note shall be paid in the manner specified on the reverse
hereof.

          The principal of and interest on this Note are payable in such coin or
currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts. All payments made by the Issuer
with respect to this Note shall be applied first to interest due and payable on
this Note as provided above and then to the unpaid principal of this Note.

          Reference is made to the further provisions of this Note set forth on
the reverse hereof, which shall have the same effect as though fully set forth
on the face of this Note.

          Unless the certificate of authentication hereon has been executed by
the Indenture Trustee whose name appears below by manual signature, this Note
shall not be entitled to any benefit under the Indenture referred to on the
reverse hereof, or be valid or obligatory for any purpose.

                                       2
<Page>

          IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly
executed, manually or in facsimile, as of the date set forth below.

                                       SLM STUDENT LOAN TRUST 2002-7

                                       By CHASE MANHATTAN BANK USA, NATIONAL
                                            ASSOCIATION, not in its individual
                                            capacity but solely as Eligible
                                            Lender Trustee under the Trust
                                            Agreement,

                                            By:
                                                ---------------------------
                                                   Authorized Signatory

Date: November 26, 2002

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

          This is one of the Notes designated above and referred to in the
within-mentioned Indenture.

                                            THE BANK OF NEW YORK,
                                            not in its individual capacity but
                                            solely as Indenture Trustee,

                                            By:
                                                ---------------------------
                                                   Authorized Signatory

Date: November 26, 2002

                                       3
<Page>

                                [REVERSE OF NOTE]

          This Note is one of a duly authorized issue of Notes of the Issuer,
designated as its Auction Rate Class A-9 Student Loan-Backed Notes (the "Class
A-9 Notes"), which, together with the Issuer's Floating Rate Class A-1 Student
Loan-Backed Notes (the "Class A-1 Notes"), Floating Rate Class A-2 Student
Loan-Backed Notes (the "Class A-2 Notes"), Floating Rate Class A-3 Student
Loan-Backed Notes (the "Class A-3 Notes"), Floating Rate Class A-4 Student
Loan-Backed Notes (the "Class A-4 Notes"), Floating Rate Class A-5 Student
Loan-Backed Notes (the "Class A-5 Notes" and, together with the Class A-1 Notes,
the Class A-2 Notes, the Class A-3 Notes and the Class A-4 Notes, the "Floating
Rate Notes"), Auction Rate Class A-6 Student Loan-Backed Notes (the "Class A-6
Notes"), Auction Rate Class A-7 Student Loan-Backed Notes (the "Class A-7
Notes"), Auction Rate Class A-8 Student Loan-Backed Notes (the "Class A-8
Notes"), Auction Rate Class A-9 Student Loan-Backed Notes (the "Class A-9
Notes"), Auction Rate Class A-10 Student Loan-Backed Notes (the "Class A-10
Notes"), Auction Rate Class A-11 Student Loan-Backed Notes (the "Class A-11
Notes") and Auction Rate Class B Student Loan-Backed Notes (the "Class B Notes"
and, together with the Class A Notes, the "Notes") are issued under and secured
by the Indenture, to which Indenture and all indentures supplemental thereto
reference is hereby made for a statement of the respective rights and
obligations thereunder of the Issuer, the Indenture Trustee and the Noteholders.
The Notes are subject to all terms of the Indenture.

          The Class A-9 Notes are and will be equally and ratably secured by the
Collateral pledged as security therefor as provided in the Indenture. The
Floating Notes are prior in order of principal payment to the Class A-9 Notes,
interest on the Class A-9 Notes are paid pari passu and principal on the Class
A-9 Notes are paid pari passu, in lots of $50,000, with the Class A Auction Rate
Notes, and the Class A-9 Notes are senior to the Class B Notes, as and to the
extent provided in the Indenture.

          Principal of the Class A-9 Notes shall be payable on each Distribution
Date in an amount described on the face hereof. "Distribution Date" means (a)
the day following the end of each Auction Period for that class of Auction Rate
Notes and (b) for a class of Auction Rate Notes with an Auction Period in excess
of 90 days, in addition to the days referred to in clause (a), the Quarterly
Distribution Dates.

          As described on the face hereof, the entire unpaid principal amount of
this Note shall be due and payable on the Class A-9 Maturity Date.
Notwithstanding the foregoing, the entire unpaid principal amount of the Notes
shall be due and payable on the date on which (i) an Event of Default shall have
occurred and be continuing and (ii) the Indenture Trustee or the Noteholders
representing not less than a majority of the Outstanding Amount of the Notes
shall have declared the Notes to be immediately due and payable in the manner
provided in Section 5.2 of the Indenture. All principal payments on the Class
A-9 Notes shall be made pro rata to the Noteholders entitled thereto.

          Interest on the Class A-9 Notes shall be payable on each Distribution
Date on the principal amount outstanding of the Class A-9 Notes until the
principal amount thereof is paid in full, at a rate per annum equal to the Class
A-9 Rate. The "Class A-9 Rate" for each Accrual Period shall be equal to the
Auction Note Interest Rate for the Class A-9 Notes.

                                       4
<Page>

          The applicable Auction Note Interest Rate will be determined
periodically on the basis of orders placed in an Auction conducted on the
Business Day immediately preceding the first day of each Auction Period and in
such other manner as described in the Indenture.

          The Auction Period, the applicable Auction Note Interest Rate, the
method of determining the applicable Auction Note Interest Rate, the
Distribution Dates, and the Auction Procedures related thereto will be
determined upon the terms and conditions, including required notices thereof to
the beneficial owners thereof, provided in the Indenture, to which provisions
specific reference is hereby made, and all of which provisions are hereby
specifically incorporated herein by reference.

          In no event shall the applicable Auction Note Interest Rate exceed the
Maximum Rate. The excess of the amount of interest that would have accrued on
this Class A-9 Note at the lesser of the Auction Rate and the Maximum Rate
determined as if the Student Loan Rate were not a component thereof over the
amount of interest actually accrued at the Student Loan Rate, together with the
unreduced portion of any such excess from prior Accrual Periods will accrue as
the Carry-over Amount as provided in the Indenture. Any Carry-over Amount on
this Class A-9 Note and any interest accrued thereon, is due and payable only if
and to the extent as set forth in the Indenture. Any such payment obligation is
extinguished when this Class A-9 Note is paid at maturity or by earlier
redemption.

          Payments of interest on this Note on each Distribution Date, together
with the installment of principal, if any, to the extent not in full payment of
this Note, shall be made by check mailed to the Person whose name appears as the
Registered Holder of this Note (or one or more Predecessor Notes) on the Note
Register on the Record Date, except that with respect to Notes registered on the
Record Date in the name of the nominee of the Clearing Agency, unless Definitive
Notes have been issued (initially, such nominee to be Cede & Co.), payments
shall be made by wire transfer in immediately available funds to the account
designated by such nominee. Such checks shall be mailed to the Person entitled
thereto at the address of such Person as it appears on the Note Register as of
the applicable Record Date without requiring that this Note be submitted for
notation of payment, and the mailing of such check shall constitute payment of
the amount thereof regardless of whether such check is returned undelivered. Any
reduction in the principal amount of this Note (or any one or more Predecessor
Notes) effected by any payments made on any Distribution Date shall be binding
upon all future Noteholders of this Note and of any Note issued upon the
registration of transfer hereof or in exchange hereof or in lieu hereof, whether
or not noted hereon. If funds are expected to be available, as provided in the
Indenture, for payment in full of the then remaining unpaid principal amount of
this Note on a Distribution Date, then the Indenture Trustee, in the name of and
on behalf of the Issuer, shall notify the Person who was the Noteholder hereof
as of the preceding Record Date by notice mailed no later than five days prior
to such Distribution Date and the amount then due and payable shall be payable
only upon presentation and surrender of this Note at the Indenture Trustee's
Corporate Trust Office or at the office of the Indenture Trustee's agent
appointed for such purposes located in the Borough of Manhattan, The City of New
York.

          The Issuer shall pay interest on overdue installments of interest on
this Note at the Class A-9 Rate to the extent lawful.

                                       5
<Page>

          As provided in the Indenture and subject to certain limitations set
forth therein, the transfer of this Note may be registered on the Note Register
upon surrender of this Note for registration of transfer at the office or agency
designated by the Issuer pursuant to the Indenture, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Indenture Trustee duly executed by, the Noteholder hereof or his attorney duly
authorized in writing, with such signature guaranteed by an "eligible guarantor
institution" meeting the requirements of the Note Registrar, which requirements
include membership or participation in Securities Transfer Agent's Medallion
Program ("STAMP") or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP
(all in accordance with the Exchange Act), and such other documents as the
Indenture Trustee may require, and thereupon one or more new Notes of authorized
denominations and in the same aggregate principal amount shall be issued to the
designated transferee or transferees. No service charge will be charged for any
registration of transfer or exchange of this Note, but the transferor may be
required to pay a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection with any such registration of transfer or
exchange.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in the Note, covenants and agrees that no
recourse may be taken, directly or indirectly, with respect to the obligations
of the Issuer or the Indenture Trustee on the Notes or under the Indenture or
any certificate or other writing delivered in connection therewith, against (i)
the Indenture Trustee or the Eligible Lender Trustee in its individual capacity,
(ii) any owner of a beneficial interest in the Issuer or (iii) any partner,
owner, beneficiary, agent, officer, director or employee of the Indenture
Trustee or the Eligible Lender Trustee in its individual capacity, any holder or
owner of a beneficial interest in the Issuer, the Eligible Lender Trustee or the
Indenture Trustee or of any successor or assign thereof in its individual
capacity, except as any such Person may have expressly agreed (it being
understood that the Indenture Trustee and the Eligible Lender Trustee have no
such obligations in their individual capacity) and except that any such partner,
owner or beneficiary shall be fully liable, to the extent provided by applicable
law, for any unpaid consideration for stock, unpaid capital contribution or
failure to pay any installment or call owing to such entity.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in a Note, covenants and agrees that by
accepting the benefits of the Indenture such Noteholder or Note Owner will not
at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy,
reorganization, arrangement, insolvency, receivership or liquidation proceedings
or other proceedings under any United States Federal or state bankruptcy or
similar law in connection with any obligations relating to the Notes, the
Indenture or the other Basic Documents.

          Prior to the due presentment for registration of transfer of this
Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the
Indenture Trustee may treat the Person in whose name this Note (as of the day of
determination or as of such other date as may be specified in the Indenture) is
registered as the owner hereof for all purposes whether or not this Note be
overdue, and neither the Issuer, the Indenture Trustee nor any such agent shall
be affected by notice to the contrary.

                                       6
<Page>

          The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Issuer and the rights of the Noteholders under the Indenture at any time by the
Issuer with the consent of the Noteholders representing a majority of the
Outstanding Amount of all Notes at the time outstanding. The Indenture also
contains provisions permitting the Noteholders representing specified
percentages of the Outstanding Amount of the Notes, on behalf of all the
Noteholders, to waive compliance by the Issuer with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences.
Any such consent or waiver by the holder of this Note (or any one of more
Predecessor Notes) shall be conclusive and binding upon such holder and upon all
future holders of this Note and of any Note issued upon registration of transfer
hereof or in exchange hereof or in lieu hereof whether or not notation of such
consent or waiver is made upon this Note. The Indenture also permits the
Indenture Trustee to amend or waive certain terms and conditions set forth in
the Indenture without the consent of holders of the Notes issued thereunder.

          The term "Issuer" as used in this Note includes any successor to the
Issuer under the Indenture.

          The Issuer is permitted by the Indenture, under certain circumstances,
to merge or consolidate, subject to the rights of the Indenture Trustee and the
Noteholders under the Indenture.

          The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth.

          This Note shall be construed in accordance with the laws of the State
of New York, without reference to its conflict of law provisions, and the
obligations, rights and remedies of the parties hereunder and thereunder shall
be determined in accordance with such laws.

          No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Issuer, which is
absolute and unconditional, to pay the principal of and interest on this Note at
the times, place, and rate, and in the coin or currency, herein prescribed.

          Anything herein to the contrary notwithstanding, except as expressly
provided in the Basic Documents, neither The Bank of New York, in its individual
capacity, Chase Manhattan Bank USA, National Association in its individual
capacity, any owner of a beneficial interest in the Issuer, nor any of their
respective partners, beneficiaries, agents, officers, directors, employees or
successors or assigns shall be personally liable for, nor shall recourse be had
to any of them for, the payment of principal of or interest on, or performance
of, or omission to perform, any of the covenants, obligations or
indemnifications contained in this Note or the Indenture; it being expressly
understood that said covenants, obligations and indemnifications have been made
by the Eligible Lender Trustee for the sole purposes of binding the interests of
the Eligible Lender Trustee in the assets of the Issuer. The Noteholder of this
Note by the acceptance hereof agrees that, except as expressly provided in the
Basic Documents, in the case of an Event of Default under the Indenture, the
Noteholder shall have no claim against any of the foregoing for any deficiency,
loss or claim therefrom; PROVIDED, HOWEVER, that nothing contained

                                       7
<Page>

herein shall be taken to prevent recourse to, and enforcement against, the
assets of the Issuer for any and all liabilities, obligations and undertakings
contained in the Indenture or in this Note.

                                       8
<Page>

                                   ASSIGNMENT

Social Security or taxpayer I.D. or other identifying number of assignee

--------------------------------------------------------------------------------

          FOR VALUE RECEIVED, the undersigned hereby sells, assigns and
transfers unto

--------------------------------------------------------------------------------
                         (name and address of assignee)

the within Note and all rights thereunder, and hereby irrevocably constitutes
and appoints

--------------------------------------------------------------------------------
attorney, to transfer said Note on the books kept for registration thereof, with
full power of substitution in the premises.

Dated:
       ---------------

                                                                              */
                                              --------------------------------
                                                           Signature Guaranteed:

                                                                              */
                                              --------------------------------

----------
*/   NOTICE: The signature to this assignment must correspond with the name of
the registered owner as it appears on the face of the within Note in every
particular, without alteration, enlargement or any change whatever. Such
signature must be guaranteed by an "eligible guarantor institution" meeting the
requirements of the Note Registrar, which requirements include membership or
participation in STAMP or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP,
all in accordance with the Securities Exchange Act of 1934, as amended.

                                       9
<Page>

                                                                    EXHIBIT A-10
                                                                TO THE INDENTURE

                            [FORM OF CLASS A-10 NOTE]

                       SEE REVERSE FOR CERTAIN DEFINITIONS

          Unless this Note is presented by an authorized representative of The
Depository Trust Company, a New York corporation ("DTC"), to the Issuer (as
defined below) or its agent for registration of transfer, exchange or payment,
and any Note issued is registered in the name of Cede & Co. or in such other
name as is requested by an authorized representative of DTC (and any payment is
made to Cede & Co. or to such other entity as is requested by an authorized
representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
hereof, Cede & Co., has an interest herein.

          THE PRINCIPAL OF THIS NOTE IS PAYABLE IN INSTALLMENTS AS SET FORTH
HEREIN. ACCORDINGLY, THE OUTSTANDING PRINCIPAL AMOUNT OF THIS NOTE AT ANY TIME
MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. THIS NOTE IS NOT
GUARANTEED OR INSURED BY ANY GOVERNMENTAL AGENCY.

NUMBER                                            [Note Face Amount]
R-__                                              CUSIP NO. 78442G EW2
                                                  ISIN No. US78442G EW24

                                       1
<Page>

                          SLM STUDENT LOAN TRUST 2002-7

                AUCTION RATE CLASS A-10 STUDENT LOAN-BACKED NOTES

          SLM Student Loan Trust 2002-7, a statutory trust organized and
existing under the laws of the State of Delaware (herein referred to as the
"Issuer"), for value received, hereby promises to pay to CEDE & CO., or
registered assigns, the principal sum of [Note Face Amount] DOLLARS payable on
each Distribution Date in an amount equal to the result obtained by multiplying
(i) a fraction the numerator of which is [Note Face Amount] and the denominator
of which is $100,000,000 by (ii) the aggregate amount, if any, payable to Class
A-10 Noteholders on such Distribution Date in respect of principal of the Notes
pursuant to Section 3.1 of the Indenture dated as of November 1, 2002, among the
Issuer, Chase Manhattan Bank USA, National Association, a Delaware banking
corporation, as Eligible Lender Trustee on behalf of the Issuer, and The Bank of
New York, a New York banking corporation, as Indenture Trustee (the "Indenture
Trustee") (capitalized terms used but not defined herein being defined in
APPENDIX A-1 and APPENDIX A-2 to the INDENTURE, which also contains rules as to
usage that shall be applicable herein); PROVIDED, HOWEVER, that the entire
unpaid principal amount of this Note shall be due and payable on the March 2028
Distribution Date (the "Class A-10 Maturity Date").

          The Issuer shall pay interest on this Note at the rate per annum equal
to the Class A-10 Rate (as defined on the reverse hereof), on each Distribution
Date until the principal of this Note is paid or made available for payment, on
the principal amount of this Note outstanding on the preceding Distribution Date
(after giving effect to all payments of principal made on the preceding
Distribution Date), subject to certain limitations contained in Section 3.1 of
the Indenture. Interest on this Note shall accrue from and including the
preceding Distribution Date for the Class A-10 Notes (or, in the case of the
first Accrual Period, the Closing Date) to but excluding the following
Distribution Date for the Class A-10 Notes (or in the case of the first Accrual
Period, to and including the initial Auction Date for the Class A-10 Notes)
(each an "Accrual Period"). Interest shall be calculated on the basis of the
actual number of days elapsed in each Accrual Period divided by 360. Such
principal of and interest on this Note shall be paid in the manner specified on
the reverse hereof.

          The principal of and interest on this Note are payable in such coin or
currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts. All payments made by the Issuer
with respect to this Note shall be applied first to interest due and payable on
this Note as provided above and then to the unpaid principal of this Note.

          Reference is made to the further provisions of this Note set forth on
the reverse hereof, which shall have the same effect as though fully set forth
on the face of this Note.

          Unless the certificate of authentication hereon has been executed by
the Indenture Trustee whose name appears below by manual signature, this Note
shall not be entitled to any benefit under the Indenture referred to on the
reverse hereof, or be valid or obligatory for any purpose.

                                       2
<Page>

          IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly
executed, manually or in facsimile, as of the date set forth below.

                                       SLM STUDENT LOAN TRUST 2002-7

                                       By CHASE MANHATTAN BANK USA, NATIONAL
                                            ASSOCIATION, not in its individual
                                            capacity but solely as Eligible
                                            Lender Trustee under the Trust
                                            Agreement,

                                            By:
                                                ---------------------------
                                                   Authorized Signatory

Date: November 26, 2002

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

          This is one of the Notes designated above and referred to in the
within-mentioned Indenture.

                                            THE BANK OF NEW YORK, not in its
                                            individual capacity but solely as
                                            Indenture Trustee,


                                            By:
                                                ---------------------------
                                                   Authorized Signatory

Date: November 26, 2002

                                       3
<Page>

                                [REVERSE OF NOTE]

          This Note is one of a duly authorized issue of Notes of the Issuer,
designated as its Auction Rate Class A-10 Student Loan-Backed Notes (the "Class
A-10 Notes"), which, together with the Issuer's Floating Rate Class A-1 Student
Loan-Backed Notes (the "Class A-1 Notes"), Floating Rate Class A-2 Student
Loan-Backed Notes (the "Class A-2 Notes"), Floating Rate Class A-3 Student
Loan-Backed Notes (the "Class A-3 Notes"), Floating Rate Class A-4 Student
Loan-Backed Notes (the "Class A-4 Notes"), Floating Rate Class A-5 Student
Loan-Backed Notes (the "Class A-5 Notes" and, together with the Class A-1 Notes,
the Class A-2 Notes, the Class A-3 Notes and the Class A-4 Notes, the "Floating
Rate Notes"), Auction Rate Class A-6 Student Loan-Backed Notes (the "Class A-6
Notes"), Auction Rate Class A-7 Student Loan-Backed Notes (the "Class A-7
Notes"), Auction Rate Class A-8 Student Loan-Backed Notes (the "Class A-8
Notes"), Auction Rate Class A-9 Student Loan-Backed Notes (the "Class A-9
Notes"), Auction Rate Class A-10 Student Loan-Backed Notes (the "Class A-10
Notes"), Auction Rate Class A-11 Student Loan-Backed Notes (the "Class A-11
Notes") and Auction Rate Class B Student Loan-Backed Notes (the "Class B Notes"
and, together with the Class A Notes, the "Notes") are issued under and secured
by the Indenture, to which Indenture and all indentures supplemental thereto
reference is hereby made for a statement of the respective rights and
obligations thereunder of the Issuer, the Indenture Trustee and the Noteholders.
The Notes are subject to all terms of the Indenture.

          The Class A-10 Notes are and will be equally and ratably secured by
the Collateral pledged as security therefor as provided in the Indenture. The
Floating Notes are prior in order of principal payment to the Class A-10 Notes,
interest on the Class A-10 Notes are paid pari passu and principal on the Class
A-10 Notes are paid pari passu, in lots of $50,000, with the Class A Auction
Rate Notes, and the Class A-10 Notes are senior to the Class B Notes, as and to
the extent provided in the Indenture.

          Principal of the Class A-10 Notes shall be payable on each
Distribution Date in an amount described on the face hereof. "Distribution Date"
means (a) the day following the end of each Auction Period for that class of
Auction Rate Notes and (b) for a class of Auction Rate Notes with an Auction
Period in excess of 90 days, in addition to the days referred to in clause (a),
the Quarterly Distribution Dates.

          As described on the face hereof, the entire unpaid principal amount of
this Note shall be due and payable on the Class A-10 Maturity Date.
Notwithstanding the foregoing, the entire unpaid principal amount of the Notes
shall be due and payable on the date on which (i) an Event of Default shall have
occurred and be continuing and (ii) the Indenture Trustee or the Noteholders
representing not less than a majority of the Outstanding Amount of the Notes
shall have declared the Notes to be immediately due and payable in the manner
provided in Section 5.2 of the Indenture. All principal payments on the Class
A-10 Notes shall be made pro rata to the Noteholders entitled thereto.

          Interest on the Class A-10 Notes shall be payable on each Distribution
Date on the principal amount outstanding of the Class A-10 Notes until the
principal amount thereof is paid in full, at a rate per annum equal to the Class
A-10 Rate. The "Class A-10 Rate" for each Accrual Period shall be equal to the
Auction Note Interest Rate for the Class A-10 Notes.

                                       4
<Page>

          The applicable Auction Note Interest Rate will be determined
periodically on the basis of orders placed in an Auction conducted on the
Business Day immediately preceding the first day of each Auction Period and in
such other manner as described in the Indenture.

          The Auction Period, the applicable Auction Note Interest Rate, the
method of determining the applicable Auction Note Interest Rate, the
Distribution Dates, and the Auction Procedures related thereto will be
determined upon the terms and conditions, including required notices thereof to
the beneficial owners thereof, provided in the Indenture, to which provisions
specific reference is hereby made, and all of which provisions are hereby
specifically incorporated herein by reference.

          In no event shall the applicable Auction Note Interest Rate exceed the
Maximum Rate. The excess of the amount of interest that would have accrued on
this Class A-10 Note at the lesser of the Auction Rate and the Maximum Rate
determined as if the Student Loan Rate were not a component thereof over the
amount of interest actually accrued at the Student Loan Rate, together with the
unreduced portion of any such excess from prior Accrual Periods will accrue as
the Carry-over Amount as provided in the Indenture. Any Carry-over Amount on
this Class A-10 Note and any interest accrued thereon, is due and payable only
if and to the extent as set forth in the Indenture. Any such payment obligation
is extinguished when this Class A-10 Note is paid at maturity or by earlier
redemption.

          Payments of interest on this Note on each Distribution Date, together
with the installment of principal, if any, to the extent not in full payment of
this Note, shall be made by check mailed to the Person whose name appears as the
Registered Holder of this Note (or one or more Predecessor Notes) on the Note
Register on the Record Date, except that with respect to Notes registered on the
Record Date in the name of the nominee of the Clearing Agency, unless Definitive
Notes have been issued (initially, such nominee to be Cede & Co.), payments
shall be made by wire transfer in immediately available funds to the account
designated by such nominee. Such checks shall be mailed to the Person entitled
thereto at the address of such Person as it appears on the Note Register as of
the applicable Record Date without requiring that this Note be submitted for
notation of payment, and the mailing of such check shall constitute payment of
the amount thereof regardless of whether such check is returned undelivered. Any
reduction in the principal amount of this Note (or any one or more Predecessor
Notes) effected by any payments made on any Distribution Date shall be binding
upon all future Noteholders of this Note and of any Note issued upon the
registration of transfer hereof or in exchange hereof or in lieu hereof, whether
or not noted hereon. If funds are expected to be available, as provided in the
Indenture, for payment in full of the then remaining unpaid principal amount of
this Note on a Distribution Date, then the Indenture Trustee, in the name of and
on behalf of the Issuer, shall notify the Person who was the Noteholder hereof
as of the preceding Record Date by notice mailed no later than five days prior
to such Distribution Date and the amount then due and payable shall be payable
only upon presentation and surrender of this Note at the Indenture Trustee's
Corporate Trust Office or at the office of the Indenture Trustee's agent
appointed for such purposes located in the Borough of Manhattan, The City of New
York.

          The Issuer shall pay interest on overdue installments of interest on
this Note at the Class A-10 Rate to the extent lawful.

                                       5
<Page>

          As provided in the Indenture and subject to certain limitations set
forth therein, the transfer of this Note may be registered on the Note Register
upon surrender of this Note for registration of transfer at the office or agency
designated by the Issuer pursuant to the Indenture, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Indenture Trustee duly executed by, the Noteholder hereof or his attorney duly
authorized in writing, with such signature guaranteed by an "eligible guarantor
institution" meeting the requirements of the Note Registrar, which requirements
include membership or participation in Securities Transfer Agent's Medallion
Program ("STAMP") or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP
(all in accordance with the Exchange Act), and such other documents as the
Indenture Trustee may require, and thereupon one or more new Notes of authorized
denominations and in the same aggregate principal amount shall be issued to the
designated transferee or transferees. No service charge will be charged for any
registration of transfer or exchange of this Note, but the transferor may be
required to pay a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection with any such registration of transfer or
exchange.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in the Note, covenants and agrees that no
recourse may be taken, directly or indirectly, with respect to the obligations
of the Issuer or the Indenture Trustee on the Notes or under the Indenture or
any certificate or other writing delivered in connection therewith, against (i)
the Indenture Trustee or the Eligible Lender Trustee in its individual capacity,
(ii) any owner of a beneficial interest in the Issuer or (iii) any partner,
owner, beneficiary, agent, officer, director or employee of the Indenture
Trustee or the Eligible Lender Trustee in its individual capacity, any holder or
owner of a beneficial interest in the Issuer, the Eligible Lender Trustee or the
Indenture Trustee or of any successor or assign thereof in its individual
capacity, except as any such Person may have expressly agreed (it being
understood that the Indenture Trustee and the Eligible Lender Trustee have no
such obligations in their individual capacity) and except that any such partner,
owner or beneficiary shall be fully liable, to the extent provided by applicable
law, for any unpaid consideration for stock, unpaid capital contribution or
failure to pay any installment or call owing to such entity.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in a Note, covenants and agrees that by
accepting the benefits of the Indenture such Noteholder or Note Owner will not
at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy,
reorganization, arrangement, insolvency, receivership or liquidation proceedings
or other proceedings under any United States Federal or state bankruptcy or
similar law in connection with any obligations relating to the Notes, the
Indenture or the other Basic Documents.

          Prior to the due presentment for registration of transfer of this
Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the
Indenture Trustee may treat the Person in whose name this Note (as of the day of
determination or as of such other date as may be specified in the Indenture) is
registered as the owner hereof for all purposes whether or not this Note be
overdue, and neither the Issuer, the Indenture Trustee nor any such agent shall
be affected by notice to the contrary.

                                       6
<Page>

          The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Issuer and the rights of the Noteholders under the Indenture at any time by the
Issuer with the consent of the Noteholders representing a majority of the
Outstanding Amount of all Notes at the time outstanding. The Indenture also
contains provisions permitting the Noteholders representing specified
percentages of the Outstanding Amount of the Notes, on behalf of all the
Noteholders, to waive compliance by the Issuer with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences.
Any such consent or waiver by the holder of this Note (or any one of more
Predecessor Notes) shall be conclusive and binding upon such holder and upon all
future holders of this Note and of any Note issued upon registration of transfer
hereof or in exchange hereof or in lieu hereof whether or not notation of such
consent or waiver is made upon this Note. The Indenture also permits the
Indenture Trustee to amend or waive certain terms and conditions set forth in
the Indenture without the consent of holders of the Notes issued thereunder.

          The term "Issuer" as used in this Note includes any successor to the
Issuer under the Indenture.

          The Issuer is permitted by the Indenture, under certain circumstances,
to merge or consolidate, subject to the rights of the Indenture Trustee and the
Noteholders under the Indenture.

          The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth.

          This Note shall be construed in accordance with the laws of the State
of New York, without reference to its conflict of law provisions, and the
obligations, rights and remedies of the parties hereunder and thereunder shall
be determined in accordance with such laws.

          No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Issuer, which is
absolute and unconditional, to pay the principal of and interest on this Note at
the times, place, and rate, and in the coin or currency, herein prescribed.

          Anything herein to the contrary notwithstanding, except as expressly
provided in the Basic Documents, neither The Bank of New York, in its individual
capacity, Chase Manhattan Bank USA, National Association in its individual
capacity, any owner of a beneficial interest in the Issuer, nor any of their
respective partners, beneficiaries, agents, officers, directors, employees or
successors or assigns shall be personally liable for, nor shall recourse be had
to any of them for, the payment of principal of or interest on, or performance
of, or omission to perform, any of the covenants, obligations or
indemnifications contained in this Note or the Indenture; it being expressly
understood that said covenants, obligations and indemnifications have been made
by the Eligible Lender Trustee for the sole purposes of binding the interests of
the Eligible Lender Trustee in the assets of the Issuer. The Noteholder of this
Note by the acceptance hereof agrees that, except as expressly provided in the
Basic Documents, in the case of an Event of Default under the Indenture, the
Noteholder shall have no claim against any of the foregoing for any deficiency,
loss or claim therefrom; PROVIDED, HOWEVER, that nothing contained

                                       7
<Page>

herein shall be taken to prevent recourse to, and enforcement against, the
assets of the Issuer for any and all liabilities, obligations and undertakings
contained in the Indenture or in this Note.

                                       8
<Page>

                                   ASSIGNMENT

Social Security or taxpayer I.D. or other identifying number of assignee

--------------------------------------------------------------------------------

          FOR VALUE RECEIVED, the undersigned hereby sells, assigns and
transfers unto

--------------------------------------------------------------------------------
                         (name and address of assignee)

the within Note and all rights thereunder, and hereby irrevocably constitutes
and appoints

--------------------------------------------------------------------------------
attorney, to transfer said Note on the books kept for registration thereof, with
full power of substitution in the premises.

Dated:
       ---------------

                                                                              */
                                              --------------------------------
                                                           Signature Guaranteed:

                                                                              */
                                              --------------------------------

----------
*/   NOTICE: The signature to this assignment must correspond with the name of
the registered owner as it appears on the face of the within Note in every
particular, without alteration, enlargement or any change whatever. Such
signature must be guaranteed by an "eligible guarantor institution" meeting the
requirements of the Note Registrar, which requirements include membership or
participation in STAMP or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP,
all in accordance with the Securities Exchange Act of 1934, as amended.

                                       9
<Page>

                                                                    EXHIBIT A-11
                                                                TO THE INDENTURE

                            [FORM OF CLASS A-11 NOTE]

                       SEE REVERSE FOR CERTAIN DEFINITIONS

          Unless this Note is presented by an authorized representative of The
Depository Trust Company, a New York corporation ("DTC"), to the Issuer (as
defined below) or its agent for registration of transfer, exchange or payment,
and any Note issued is registered in the name of Cede & Co. or in such other
name as is requested by an authorized representative of DTC (and any payment is
made to Cede & Co. or to such other entity as is requested by an authorized
representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
hereof, Cede & Co., has an interest herein.

          THE PRINCIPAL OF THIS NOTE IS PAYABLE IN INSTALLMENTS AS SET FORTH
HEREIN. ACCORDINGLY, THE OUTSTANDING PRINCIPAL AMOUNT OF THIS NOTE AT ANY TIME
MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. THIS NOTE IS NOT
GUARANTEED OR INSURED BY ANY GOVERNMENTAL AGENCY.

NUMBER                                               [Note Face Amount]
R-__                                                 CUSIP NO. 78442G EX0
                                                     ISIN No. US78442G EX07

                                       1
<Page>

                          SLM STUDENT LOAN TRUST 2002-7

                AUCTION RATE CLASS A-11 STUDENT LOAN-BACKED NOTES

          SLM Student Loan Trust 2002-7, a statutory trust organized and
existing under the laws of the State of Delaware (herein referred to as the
"Issuer"), for value received, hereby promises to pay to CEDE & CO., or
registered assigns, the principal sum of [Note Face Amount] DOLLARS payable on
each Distribution Date in an amount equal to the result obtained by multiplying
(i) a fraction the numerator of which is [Note Face Amount] and the denominator
of which is $100,000,000 by (ii) the aggregate amount, if any, payable to Class
A-11 Noteholders on such Distribution Date in respect of principal of the Notes
pursuant to Section 3.1 of the Indenture dated as of November 1, 2002, among the
Issuer, Chase Manhattan Bank USA, National Association, a Delaware banking
corporation, as Eligible Lender Trustee on behalf of the Issuer, and The Bank of
New York, a New York banking corporation, as Indenture Trustee (the "Indenture
Trustee") (capitalized terms used but not defined herein being defined in
APPENDIX A-1 and APPENDIX A-2 to the INDENTURE, which also contains rules as to
usage that shall be applicable herein); PROVIDED, HOWEVER, that the entire
unpaid principal amount of this Note shall be due and payable on the March 2028
Distribution Date (the "Class A-11 Maturity Date").

          The Issuer shall pay interest on this Note at the rate per annum equal
to the Class A-11 Rate (as defined on the reverse hereof), on each Distribution
Date until the principal of this Note is paid or made available for payment, on
the principal amount of this Note outstanding on the preceding Distribution Date
(after giving effect to all payments of principal made on the preceding
Distribution Date), subject to certain limitations contained in Section 3.1 of
the Indenture. Interest on this Note shall accrue from and including the
preceding Distribution Date for the Class A-11 Notes (or, in the case of the
first Accrual Period, the Closing Date) to but excluding the following
Distribution Date for the Class A-11 Notes (or, in the case of the first Accrual
Period, to and including the initial Auction Date for the Class A-11 Note) (each
an "Accrual Period"). Interest shall be calculated on the basis of the actual
number of days elapsed in each Accrual Period divided by 360. Such principal of
and interest on this Note shall be paid in the manner specified on the reverse
hereof.

          The principal of and interest on this Note are payable in such coin or
currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts. All payments made by the Issuer
with respect to this Note shall be applied first to interest due and payable on
this Note as provided above and then to the unpaid principal of this Note.

          Reference is made to the further provisions of this Note set forth on
the reverse hereof, which shall have the same effect as though fully set forth
on the face of this Note.

          Unless the certificate of authentication hereon has been executed by
the Indenture Trustee whose name appears below by manual signature, this Note
shall not be entitled to any benefit under the Indenture referred to on the
reverse hereof, or be valid or obligatory for any purpose.

                                       2
<Page>

          IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly
executed, manually or in facsimile, as of the date set forth below.

                                       SLM STUDENT LOAN TRUST 2002-7

                                       By CHASE MANHATTAN BANK USA, NATIONAL
                                            ASSOCIATION, not in its individual
                                            capacity but solely as Eligible
                                            Lender Trustee under the Trust
                                            Agreement,

                                            By:
                                                ---------------------------
                                                   Authorized Signatory

Date: November 26, 2002

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

          This is one of the Notes designated above and referred to in the
within-mentioned Indenture.

                                            THE BANK OF NEW YORK,
                                            not in its individual capacity but
                                            solely as Indenture Trustee,

                                            By:
                                                ---------------------------
                                                   Authorized Signatory

Date: November 26, 2002

                                       3
<Page>

                                [REVERSE OF NOTE]

          This Note is one of a duly authorized issue of Notes of the Issuer,
designated as its Auction Rate Class A-11 Student Loan-Backed Notes (the "Class
A-11 Notes"), which, together with the Issuer's Floating Rate Class A-1 Student
Loan-Backed Notes (the "Class A-1 Notes"), Floating Rate Class A-2 Student
Loan-Backed Notes (the "Class A-2 Notes"), Floating Rate Class A-3 Student
Loan-Backed Notes (the "Class A-3 Notes"), Floating Rate Class A-4 Student
Loan-Backed Notes (the "Class A-4 Notes"), Floating Rate Class A-5 Student
Loan-Backed Notes (the "Class A-5 Notes" and, together with the Class A-1 Notes,
the Class A-2 Notes, the Class A-3 Notes and the Class A-4 Notes, the "Floating
Rate Notes"), Auction Rate Class A-6 Student Loan-Backed Notes (the "Class A-6
Notes"), Auction Rate Class A-7 Student Loan-Backed Notes (the "Class A-7
Notes"), Auction Rate Class A-8 Student Loan-Backed Notes (the "Class A-8
Notes"), Auction Rate Class A-9 Student Loan-Backed Notes (the "Class A-9
Notes"), Auction Rate Class A-10 Student Loan-Backed Notes (the "Class A-10
Notes"), Auction Rate Class A-11 Student Loan-Backed Notes (the "Class A-11
Notes") and Auction Rate Class B Student Loan-Backed Notes (the "Class B Notes"
and, together with the Class A Notes, the "Notes") are issued under and secured
by the Indenture, to which Indenture and all indentures supplemental thereto
reference is hereby made for a statement of the respective rights and
obligations thereunder of the Issuer, the Indenture Trustee and the Noteholders.
The Notes are subject to all terms of the Indenture.

          The Class A-11 Notes are and will be equally and ratably secured by
the Collateral pledged as security therefor as provided in the Indenture. The
Floating Rate Notes are prior in order of principal payment to the Class A-11
Notes, interest on the Class A-11 Notes are paid pari passu and principal on the
Class A-11 Notes are paid pari passu, in lots of $50,000, with the Class A
Auction Rate Notes, and the Class A-11 Notes are senior to the Class B Notes, as
and to the extent provided in the Indenture.

          Principal of the Class A-11 Notes shall be payable on each
Distribution Date in an amount described on the face hereof. "Distribution Date"
means (a) the day following the end of each Auction Period for that class of
Auction Rate Notes and (b) for a class of Auction Rate Notes with an Auction
Period in excess of 90 days, in addition to the days referred to in clause (a),
the Quarterly Distribution Dates.

          As described on the face hereof, the entire unpaid principal amount of
this Note shall be due and payable on the Class A-11 Maturity Date.
Notwithstanding the foregoing, the entire unpaid principal amount of the Notes
shall be due and payable on the date on which (i) an Event of Default shall have
occurred and be continuing and (ii) the Indenture Trustee or the Noteholders
representing not less than a majority of the Outstanding Amount of the Notes
shall have declared the Notes to be immediately due and payable in the manner
provided in Section 5.2 of the Indenture. All principal payments on the Class
A-11 Notes shall be made pro rata to the Noteholders entitled thereto.

          Interest on the Class A-11 Notes shall be payable on each Distribution
Date on the principal amount outstanding of the Class A-11 Notes until the
principal amount thereof is paid in full, at a rate per annum equal to the Class
A-11 Rate. The "Class A-11 Rate" for each Accrual Period shall be equal to the
Auction Note Interest Rate for the Class A-11 Notes.

                                       4
<Page>

          The applicable Auction Note Interest Rate will be determined
periodically on the basis of orders placed in an Auction conducted on the
Business Day immediately preceding the first day of each Auction Period and in
such other manner as described in the Indenture.

          The Auction Period, the applicable Auction Note Interest Rate, the
method of determining the applicable Auction Note Interest Rate, the
Distribution Dates, and the Auction Procedures related thereto will be
determined upon the terms and conditions, including required notices thereof to
the beneficial owners thereof, provided in the Indenture, to which provisions
specific reference is hereby made, and all of which provisions are hereby
specifically incorporated herein by reference.

          In no event shall the applicable Auction Note Interest Rate exceed the
Maximum Rate. The excess of the amount of interest that would have accrued on
this Class A-11 Note at the lesser of the Auction Rate and the Maximum Rate
determined as if the Student Loan Rate were not a component thereof over the
amount of interest actually accrued at the Student Loan Rate, together with the
unreduced portion of any such excess from prior Accrual Periods will accrue as
the Carry-over Amount as provided in the Indenture. Any Carry-over Amount on
this Class A-11 Note and any interest accrued thereon, is due and payable only
if and to the extent as set forth in the Indenture. Any such payment obligation
is extinguished when this Class A-11 Note is paid at maturity or by earlier
redemption.

          Payments of interest on this Note on each Distribution Date, together
with the installment of principal, if any, to the extent not in full payment of
this Note, shall be made by check mailed to the Person whose name appears as the
Registered Holder of this Note (or one or more Predecessor Notes) on the Note
Register on the Record Date, except that with respect to Notes registered on the
Record Date in the name of the nominee of the Clearing Agency, unless Definitive
Notes have been issued (initially, such nominee to be Cede & Co.), payments
shall be made by wire transfer in immediately available funds to the account
designated by such nominee. Such checks shall be mailed to the Person entitled
thereto at the address of such Person as it appears on the Note Register as of
the applicable Record Date without requiring that this Note be submitted for
notation of payment, and the mailing of such check shall constitute payment of
the amount thereof regardless of whether such check is returned undelivered. Any
reduction in the principal amount of this Note (or any one or more Predecessor
Notes) effected by any payments made on any Distribution Date shall be binding
upon all future Noteholders of this Note and of any Note issued upon the
registration of transfer hereof or in exchange hereof or in lieu hereof, whether
or not noted hereon. If funds are expected to be available, as provided in the
Indenture, for payment in full of the then remaining unpaid principal amount of
this Note on a Distribution Date, then the Indenture Trustee, in the name of and
on behalf of the Issuer, shall notify the Person who was the Noteholder hereof
as of the preceding Record Date by notice mailed no later than five days prior
to such Distribution Date and the amount then due and payable shall be payable
only upon presentation and surrender of this Note at the Indenture Trustee's
Corporate Trust Office or at the office of the Indenture Trustee's agent
appointed for such purposes located in the Borough of Manhattan, The City of New
York.

          The Issuer shall pay interest on overdue installments of interest on
this Note at the Class A-11 Rate to the extent lawful.

                                       5
<Page>

          As provided in the Indenture and subject to certain limitations set
forth therein, the transfer of this Note may be registered on the Note Register
upon surrender of this Note for registration of transfer at the office or agency
designated by the Issuer pursuant to the Indenture, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Indenture Trustee duly executed by, the Noteholder hereof or his attorney duly
authorized in writing, with such signature guaranteed by an "eligible guarantor
institution" meeting the requirements of the Note Registrar, which requirements
include membership or participation in Securities Transfer Agent's Medallion
Program ("STAMP") or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP
(all in accordance with the Exchange Act), and such other documents as the
Indenture Trustee may require, and thereupon one or more new Notes of authorized
denominations and in the same aggregate principal amount shall be issued to the
designated transferee or transferees. No service charge will be charged for any
registration of transfer or exchange of this Note, but the transferor may be
required to pay a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection with any such registration of transfer or
exchange.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in the Note, covenants and agrees that no
recourse may be taken, directly or indirectly, with respect to the obligations
of the Issuer or the Indenture Trustee on the Notes or under the Indenture or
any certificate or other writing delivered in connection therewith, against (i)
the Indenture Trustee or the Eligible Lender Trustee in its individual capacity,
(ii) any owner of a beneficial interest in the Issuer or (iii) any partner,
owner, beneficiary, agent, officer, director or employee of the Indenture
Trustee or the Eligible Lender Trustee in its individual capacity, any holder or
owner of a beneficial interest in the Issuer, the Eligible Lender Trustee or the
Indenture Trustee or of any successor or assign thereof in its individual
capacity, except as any such Person may have expressly agreed (it being
understood that the Indenture Trustee and the Eligible Lender Trustee have no
such obligations in their individual capacity) and except that any such partner,
owner or beneficiary shall be fully liable, to the extent provided by applicable
law, for any unpaid consideration for stock, unpaid capital contribution or
failure to pay any installment or call owing to such entity.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in a Note, covenants and agrees that by
accepting the benefits of the Indenture such Noteholder or Note Owner will not
at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy,
reorganization, arrangement, insolvency, receivership or liquidation proceedings
or other proceedings under any United States Federal or state bankruptcy or
similar law in connection with any obligations relating to the Notes, the
Indenture or the other Basic Documents.

          Prior to the due presentment for registration of transfer of this
Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the
Indenture Trustee may treat the Person in whose name this Note (as of the day of
determination or as of such other date as may be specified in the Indenture) is
registered as the owner hereof for all purposes whether or not this Note be
overdue, and neither the Issuer, the Indenture Trustee nor any such agent shall
be affected by notice to the contrary.

                                       6
<Page>

          The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Issuer and the rights of the Noteholders under the Indenture at any time by the
Issuer with the consent of the Noteholders representing a majority of the
Outstanding Amount of all Notes at the time outstanding. The Indenture also
contains provisions permitting the Noteholders representing specified
percentages of the Outstanding Amount of the Notes, on behalf of all the
Noteholders, to waive compliance by the Issuer with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences.
Any such consent or waiver by the holder of this Note (or any one of more
Predecessor Notes) shall be conclusive and binding upon such holder and upon all
future holders of this Note and of any Note issued upon registration of transfer
hereof or in exchange hereof or in lieu hereof whether or not notation of such
consent or waiver is made upon this Note. The Indenture also permits the
Indenture Trustee to amend or waive certain terms and conditions set forth in
the Indenture without the consent of holders of the Notes issued thereunder.

          The term "Issuer" as used in this Note includes any successor to the
Issuer under the Indenture.

          The Issuer is permitted by the Indenture, under certain circumstances,
to merge or consolidate, subject to the rights of the Indenture Trustee and the
Noteholders under the Indenture.

          The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth.

          This Note shall be construed in accordance with the laws of the State
of New York, without reference to its conflict of law provisions, and the
obligations, rights and remedies of the parties hereunder and thereunder shall
be determined in accordance with such laws.

          No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Issuer, which is
absolute and unconditional, to pay the principal of and interest on this Note at
the times, place, and rate, and in the coin or currency, herein prescribed.

          Anything herein to the contrary notwithstanding, except as expressly
provided in the Basic Documents, neither The Bank of New York, in its individual
capacity, Chase Manhattan Bank USA, National Association in its individual
capacity, any owner of a beneficial interest in the Issuer, nor any of their
respective partners, beneficiaries, agents, officers, directors, employees or
successors or assigns shall be personally liable for, nor shall recourse be had
to any of them for, the payment of principal of or interest on, or performance
of, or omission to perform, any of the covenants, obligations or
indemnifications contained in this Note or the Indenture; it being expressly
understood that said covenants, obligations and indemnifications have been made
by the Eligible Lender Trustee for the sole purposes of binding the interests of
the Eligible Lender Trustee in the assets of the Issuer. The Noteholder of this
Note by the acceptance hereof agrees that, except as expressly provided in the
Basic Documents, in the case of an Event of Default under the Indenture, the
Noteholder shall have no claim against any of the foregoing for any deficiency,
loss or claim therefrom; PROVIDED, HOWEVER, that nothing contained

                                       7
<Page>

herein shall be taken to prevent recourse to, and enforcement against, the
assets of the Issuer for any and all liabilities, obligations and undertakings
contained in the Indenture or in this Note.

                                       8
<Page>

                                   ASSIGNMENT

Social Security or taxpayer I.D. or other identifying number of assignee

--------------------------------------------------------------------------------

          FOR VALUE RECEIVED, the undersigned hereby sells, assigns and
transfers unto

--------------------------------------------------------------------------------
                         (name and address of assignee)

the within Note and all rights thereunder, and hereby irrevocably constitutes
and appoints

--------------------------------------------------------------------------------
attorney, to transfer said Note on the books kept for registration thereof, with
full power of substitution in the premises.

Dated:
       ---------------

                                                                              */
                                              --------------------------------
                                                           Signature Guaranteed:

                                                                              */
                                              --------------------------------

----------
*/   NOTICE: The signature to this assignment must correspond with the name of
the registered owner as it appears on the face of the within Note in every
particular, without alteration, enlargement or any change whatever. Such
signature must be guaranteed by an "eligible guarantor institution" meeting the
requirements of the Note Registrar, which requirements include membership or
participation in STAMP or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP,
all in accordance with the Securities Exchange Act of 1934, as amended.

                                       9
<Page>

                                                                    EXHIBIT A-12
                                                                TO THE INDENTURE

                             [FORM OF CLASS B NOTE]

                       SEE REVERSE FOR CERTAIN DEFINITIONS

          Unless this Note is presented by an authorized representative of The
Depository Trust Company, a New York corporation ("DTC"), to the Issuer (as
defined below) or its agent for registration of transfer, exchange or payment,
and any Note issued is registered in the name of Cede & Co. or in such other
name as is requested by an authorized representative of DTC (and any payment is
made to Cede & Co. or to such other entity as is requested by an authorized
representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
hereof, Cede & Co., has an interest herein.

          THE PRINCIPAL OF THIS NOTE IS PAYABLE IN INSTALLMENTS AS SET FORTH
HEREIN. ACCORDINGLY, THE OUTSTANDING PRINCIPAL AMOUNT OF THIS NOTE AT ANY TIME
MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. THIS NOTE IS NOT
GUARANTEED OR INSURED BY ANY GOVERNMENTAL AGENCY.

NUMBER                                              [Note Face Amount]
R-__                                                CUSIP NO. 78442G EY8
                                                    ISIN No. US78442G EY89

                                       1
<Page>

                          SLM STUDENT LOAN TRUST 2002-7

                 AUCTION RATE CLASS B STUDENT LOAN-BACKED NOTES

          SLM Student Loan Trust 2002-7, a statutory trust organized and
existing under the laws of the State of Delaware (herein referred to as the
"Issuer"), for value received, hereby promises to pay to CEDE & CO., or
registered assigns, the principal sum of [Note Face Amount] DOLLARS payable on
each Distribution Date in an amount equal to the result obtained by multiplying
(i) a fraction the numerator of which is [Note Face Amount] and the denominator
of which is $59,850,000 by (ii) the aggregate amount, if any, payable to Class B
Noteholders on such Distribution Date in respect of principal of the Notes
pursuant to Section 3.1 of the Indenture dated as of November 1, 2002, among the
Issuer, Chase Manhattan Bank USA, National Association, a Delaware banking
corporation, as Eligible Lender Trustee on behalf of the Issuer, and The Bank of
New York, a New York banking corporation, as Indenture Trustee (the "Indenture
Trustee") (capitalized terms used but not defined herein being defined in
APPENDIX A-1 and APPENDIX A-2 to the INDENTURE, which also contains rules as to
usage that shall be applicable herein); PROVIDED, HOWEVER, that the entire
unpaid principal amount of this Note shall be due and payable on the December
2039 Distribution Date (the "Class B Maturity Date").

          The Issuer shall pay interest on this Note at the rate per annum equal
to the Class B Rate (as defined on the reverse hereof), on each Distribution
Date until the principal of this Note is paid or made available for payment, on
the principal amount of this Note outstanding on the preceding Distribution Date
(after giving effect to all payments of principal made on the preceding
Distribution Date), subject to certain limitations contained in Section 3.1 of
the Indenture. Interest on this Note shall accrue from and including the
preceding Distribution Date for the Class B Notes (or, in the case of the first
Accrual Period, the Closing Date) to but excluding the following Distribution
Date for the Class B Notes (or, in the case of the first Accrual Period, to and
including the initial Auction Date for the Class B Notes) (each an "Accrual
Period"). Interest shall be calculated on the basis of the actual number of days
elapsed in each Accrual Period divided by 360. Such principal of and interest on
this Note shall be paid in the manner specified on the reverse hereof.

          The principal of and interest on this Note are payable in such coin or
currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts. All payments made by the Issuer
with respect to this Note shall be applied first to interest due and payable on
this Note as provided above and then to the unpaid principal of this Note.

          Reference is made to the further provisions of this Note set forth on
the reverse hereof, which shall have the same effect as though fully set forth
on the face of this Note.

          Unless the certificate of authentication hereon has been executed by
the Indenture Trustee whose name appears below by manual signature, this Note
shall not be entitled to any benefit under the Indenture referred to on the
reverse hereof, or be valid or obligatory for any purpose.

                                       2
<Page>

          IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly
executed, manually or in facsimile, as of the date set forth below.

                                       SLM STUDENT LOAN TRUST 2002-7

                                       By CHASE MANHATTAN BANK USA, NATIONAL
                                            ASSOCIATION, not in its individual
                                            capacity but solely as Eligible
                                            Lender Trustee under the Trust
                                            Agreement,

                                            By:
                                                --------------------------
                                                   Authorized Signatory

Date: November 26, 2002

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

          This is one of the Notes designated above and referred to in the
within-mentioned Indenture.

                                            THE BANK OF NEW YORK,
                                            not in its individual capacity but
                                            solely as Indenture Trustee,

                                            By:
                                                --------------------------
                                                   Authorized Signatory

Date: November 26, 2002

                                       3
<Page>

                                [REVERSE OF NOTE]

          This Note is one of a duly authorized issue of Notes of the Issuer,
designated as its Auction Rate Class B Student Loan-Backed Notes (the "Class B
Notes"), which, together with the Issuer's Floating Rate Class A-1 Student
Loan-Backed Notes (the "Class A-1 Notes"), Floating Rate Class A-2 Student
Loan-Backed Notes (the "Class A-2 Notes"), Floating Rate Class A-3 Student
Loan-Backed Notes (the "Class A-3 Notes") and the Issuer's Floating Rate Class
A-4 Student Loan-Backed Notes (the "Class A-4 Notes" and, together with the
Class A-1 Notes, the Class A-2 Notes, the Class A-3 Notes and the Class B Notes,
the "Notes") are issued under and secured by the Indenture, to which Indenture
and all indentures supplemental thereto reference is hereby made for a statement
of the respective rights and obligations thereunder of the Issuer, the Indenture
Trustee and the Noteholders. The Notes are subject to all terms of the
Indenture.

          The Class B Notes are and will be equally and ratably secured by the
Collateral pledged as security therefor as provided in the Indenture. The Class
A Notes are prior in order of principal payment, and are senior, to the Class B
Notes as and to the extent provided in the Indenture.

          Principal of the Class B Notes shall be payable on each Distribution
Date in an amount described on the face hereof. "Distribution Date" means (a)
the day following the end of each Auction Period for that class of Auction Rate
Notes and (b) for a class of Auction Rate Notes with an Auction Period in excess
of 90 days, in addition to the days referred to in clause (a), the Quarterly
Distribution Dates.

          As described on the face hereof, the entire unpaid principal amount of
this Note shall be due and payable on the Class B Maturity Date. Notwithstanding
the foregoing, the entire unpaid principal amount of the Notes shall be due and
payable on the date on which (i) an Event of Default shall have occurred and be
continuing and (ii) the Indenture Trustee or the Noteholders representing not
less than a majority of the Outstanding Amount of the Notes shall have declared
the Notes to be immediately due and payable in the manner provided in Section
5.2 of the Indenture. All principal payments on the Class B Notes shall be made
pro rata to the Noteholders entitled thereto.

          Interest on the Class B Notes shall be payable on each Distribution
Date on the principal amount outstanding of the Class B Notes until the
principal amount thereof is paid in full, at a rate per annum equal to the Class
B Rate. The "Class B Rate" for each Accrual Period shall be equal to the Auction
Note Interest Rate for the Class B Notes.

          The applicable Auction Note Interest Rate will be determined
periodically on the basis of orders placed in an Auction conducted on the
Business Day immediately preceding the first day of each Auction Period and in
such other manner as described in the Indenture.

          The Auction Period, the applicable Auction Note Interest Rate, the
method of determining the applicable Auction Note Interest Rate, the
Distribution Dates, and the Auction Procedures related thereto will be
determined upon the terms and conditions, including required notices thereof to
the beneficial owners thereof, provided in the Indenture, to which provisions

                                       4
<Page>

specific reference is hereby made, and all of which provisions are hereby
specifically incorporated herein by reference.

          In no event shall the applicable Auction Note Interest Rate exceed the
Maximum Rate. The excess of the amount of interest that would have accrued on
this Class B Note at the lesser of the Auction Rate and the Maximum Rate
determined as if the Student Loan Rate were not a component thereof over the
amount of interest actually accrued at the Student Loan Rate, together with the
unreduced portion of any such excess from prior Accrual Periods will accrue as
the Carry-over Amount as provided in the Indenture. Any Carry-over Amount on
this Class B Note and any interest accrued thereon, is due and payable only if
and to the extent as set forth in the Indenture. Any such payment obligation is
extinguished when this Class B Note is paid at maturity or by earlier
redemption.

          Payments of interest on this Note on each Distribution Date, together
with the installment of principal, if any, to the extent not in full payment of
this Note, shall be made by check mailed to the Person whose name appears as the
Registered Holder of this Note (or one or more Predecessor Notes) on the Note
Register on the Record Date, except that with respect to Notes registered on the
Record Date in the name of the nominee of the Clearing Agency, unless Definitive
Notes have been issued (initially, such nominee to be Cede & Co.), payments
shall be made by wire transfer in immediately available funds to the account
designated by such nominee. Such checks shall be mailed to the Person entitled
thereto at the address of such Person as it appears on the Note Register as of
the applicable Record Date without requiring that this Note be submitted for
notation of payment, and the mailing of such check shall constitute payment of
the amount thereof regardless of whether such check is returned undelivered. Any
reduction in the principal amount of this Note (or any one or more Predecessor
Notes) effected by any payments made on any Distribution Date shall be binding
upon all future Noteholders of this Note and of any Note issued upon the
registration of transfer hereof or in exchange hereof or in lieu hereof, whether
or not noted hereon. If funds are expected to be available, as provided in the
Indenture, for payment in full of the then remaining unpaid principal amount of
this Note on a Distribution Date, then the Indenture Trustee, in the name of and
on behalf of the Issuer, shall notify the Person who was the Noteholder hereof
as of the preceding Record Date by notice mailed no later than five days prior
to such Distribution Date and the amount then due and payable shall be payable
only upon presentation and surrender of this Note at the Indenture Trustee's
Corporate Trust Office or at the office of the Indenture Trustee's agent
appointed for such purposes located in the Borough of Manhattan, The City of New
York.

          The Issuer shall pay interest on overdue installments of interest on
this Note at the Class B Rate to the extent lawful.

          As provided in the Indenture and subject to certain limitations set
forth therein, the transfer of this Note may be registered on the Note Register
upon surrender of this Note for registration of transfer at the office or agency
designated by the Issuer pursuant to the Indenture, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Indenture Trustee duly executed by, the Noteholder hereof or his attorney duly
authorized in writing, with such signature guaranteed by an "eligible guarantor
institution" meeting the requirements of the Note Registrar, which requirements
include membership or participation in Securities Transfer Agent's Medallion
Program ("STAMP") or such other "signature guarantee

                                       5
<Page>

program" as may be determined by the Note Registrar in addition to, or in
substitution for, STAMP (all in accordance with the Exchange Act), and such
other documents as the Indenture Trustee may require, and thereupon one or more
new Notes of authorized denominations and in the same aggregate principal amount
shall be issued to the designated transferee or transferees. No service charge
will be charged for any registration of transfer or exchange of this Note, but
the transferor may be required to pay a sum sufficient to cover any tax or other
governmental charge that may be imposed in connection with any such registration
of transfer or exchange.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in the Note, covenants and agrees that no
recourse may be taken, directly or indirectly, with respect to the obligations
of the Issuer or the Indenture Trustee on the Notes or under the Indenture or
any certificate or other writing delivered in connection therewith, against (i)
the Indenture Trustee or the Eligible Lender Trustee in its individual capacity,
(ii) any owner of a beneficial interest in the Issuer or (iii) any partner,
owner, beneficiary, agent, officer, director or employee of the Indenture
Trustee or the Eligible Lender Trustee in its individual capacity, any holder or
owner of a beneficial interest in the Issuer, the Eligible Lender Trustee or the
Indenture Trustee or of any successor or assign thereof in its individual
capacity, except as any such Person may have expressly agreed (it being
understood that the Indenture Trustee and the Eligible Lender Trustee have no
such obligations in their individual capacity) and except that any such partner,
owner or beneficiary shall be fully liable, to the extent provided by applicable
law, for any unpaid consideration for stock, unpaid capital contribution or
failure to pay any installment or call owing to such entity.

          Each Noteholder or Note Owner, by acceptance of a Note or, in the case
of a Note Owner, a beneficial interest in a Note, covenants and agrees that by
accepting the benefits of the Indenture such Noteholder or Note Owner will not
at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy,
reorganization, arrangement, insolvency, receivership or liquidation proceedings
or other proceedings under any United States Federal or state bankruptcy or
similar law in connection with any obligations relating to the Notes, the
Indenture or the other Basic Documents.

          Prior to the due presentment for registration of transfer of this
Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the
Indenture Trustee may treat the Person in whose name this Note (as of the day of
determination or as of such other date as may be specified in the Indenture) is
registered as the owner hereof for all purposes whether or not this Note be
overdue, and neither the Issuer, the Indenture Trustee nor any such agent shall
be affected by notice to the contrary.

          The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Issuer and the rights of the Noteholders under the Indenture at any time by the
Issuer with the consent of the Noteholders representing a majority of the
Outstanding Amount of all Notes at the time outstanding. The Indenture also
contains provisions permitting the Noteholders representing specified
percentages of the Outstanding Amount of the Notes, on behalf of all the
Noteholders, to waive compliance by the Issuer with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences.
Any such consent or waiver by the holder of this Note (or any one of more
Predecessor Notes) shall be conclusive and binding upon such

                                       6
<Page>

holder and upon all future holders of this Note and of any Note issued upon
registration of transfer hereof or in exchange hereof or in lieu hereof whether
or not notation of such consent or waiver is made upon this Note. The Indenture
also permits the Indenture Trustee to amend or waive certain terms and
conditions set forth in the Indenture without the consent of holders of the
Notes issued thereunder.

          The term "Issuer" as used in this Note includes any successor to the
Issuer under the Indenture.

          The Issuer is permitted by the Indenture, under certain circumstances,
to merge or consolidate, subject to the rights of the Indenture Trustee and the
Noteholders under the Indenture.

          The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth.

          This Note shall be construed in accordance with the laws of the State
of New York, without reference to its conflict of law provisions, and the
obligations, rights and remedies of the parties hereunder and thereunder shall
be determined in accordance with such laws.

          No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Issuer, which is
absolute and unconditional, to pay the principal of and interest on this Note at
the times, place, and rate, and in the coin or currency, herein prescribed.

          Anything herein to the contrary notwithstanding, except as expressly
provided in the Basic Documents, neither The Bank of New York, in its individual
capacity, Chase Manhattan Bank USA, National Association in its individual
capacity, any owner of a beneficial interest in the Issuer, nor any of their
respective partners, beneficiaries, agents, officers, directors, employees or
successors or assigns shall be personally liable for, nor shall recourse be had
to any of them for, the payment of principal of or interest on, or performance
of, or omission to perform, any of the covenants, obligations or
indemnifications contained in this Note or the Indenture; it being expressly
understood that said covenants, obligations and indemnifications have been made
by the Eligible Lender Trustee for the sole purposes of binding the interests of
the Eligible Lender Trustee in the assets of the Issuer. The Noteholder of this
Note by the acceptance hereof agrees that, except as expressly provided in the
Basic Documents, in the case of an Event of Default under the Indenture, the
Noteholder shall have no claim against any of the foregoing for any deficiency,
loss or claim therefrom; PROVIDED, HOWEVER, that nothing contained herein shall
be taken to prevent recourse to, and enforcement against, the assets of the
Issuer for any and all liabilities, obligations and undertakings contained in
the Indenture or in this Note.

                                       7
<Page>

                                   ASSIGNMENT

Social Security or taxpayer I.D. or other identifying number of assignee

--------------------------------------------------------------------------------

          FOR VALUE RECEIVED, the undersigned hereby sells, assigns and
transfers unto

--------------------------------------------------------------------------------
                         (name and address of assignee)

the within Note and all rights thereunder, and hereby irrevocably constitutes
and appoints

--------------------------------------------------------------------------------
attorney, to transfer said Note on the books kept for registration thereof, with
full power of substitution in the premises.

Dated:
       ---------------

                                                                              */
                                              --------------------------------
                                                           Signature Guaranteed:

                                                                              */
                                              --------------------------------

----------
*/   NOTICE: The signature to this assignment must correspond with the name of
the registered owner as it appears on the face of the within Note in every
particular, without alteration, enlargement or any change whatever. Such
signature must be guaranteed by an "eligible guarantor institution" meeting the
requirements of the Note Registrar, which requirements include membership or
participation in STAMP or such other "signature guarantee program" as may be
determined by the Note Registrar in addition to, or in substitution for, STAMP,
all in accordance with the Securities Exchange Act of 1934, as amended.

                                       8
<Page>

                                                                       EXHIBIT B
                                                                TO THE INDENTURE

          NOTE DEPOSITORY AGREEMENT

                                       9
<Page>

                                                                       EXHIBIT C
                                                                TO THE INDENTURE

                            NOTICE OF PAYMENT DEFAULT

                          SLM STUDENT LOAN TRUST 2002-7
                            STUDENT LOAN-BACKED NOTES
                                    CLASS __
                               AUCTION RATE NOTES

          NOTICE IS HEREBY GIVEN that a Payment Default has occurred and is
continuing with respect to the Auction Rate Notes identified above. The next
Auction for the Auction Rate Notes will not be held. The Auction Rate for the
Auction Rate Notes for the next succeeding Accrual Period shall be the
Non-Payment Rate.


                                            THE BANK OF NEW YORK, not in its
                                            individual capacity but solely as
                                            Indenture Trustee

Dated:                                      By:
      ---------------                          -------------------------------

                                       10
<Page>

                                                                       EXHIBIT D
                                                                TO THE INDENTURE

                        NOTICE OF CURE OF PAYMENT DEFAULT

                          SLM STUDENT LOAN TRUST 2002-7
                            STUDENT LOAN-BACKED NOTES
                                    CLASS __
                               AUCTION RATE NOTES

          NOTICE IS HEREBY GIVEN that a Payment Default with respect to the
Auction Rate Notes identified above has been waived or cured. The next Payment
Date is _____________ and the Auction Date is _________________.


                                            THE BANK OF NEW YORK, not in its
                                            individual capacity but solely as
                                            Indenture Trustee

Dated:                                      By:
      ---------------                          -------------------------------

                                       11
<Page>

                                                                       EXHIBIT E
                                                                TO THE INDENTURE

                       NOTICE OF PROPOSED CHANGE IN LENGTH
                         OF ONE OR MORE AUCTION PERIODS

                          SLM STUDENT LOAN TRUST 2002-7
                            STUDENT LOAN-BACKED NOTES
                                    CLASS __
                               AUCTION RATE NOTES

          Notice is hereby given that the Issuer proposes to change the length
of one or more Auction Periods pursuant to the Indenture as follows:

          1.   The change shall take effect on ____________, the Interest Rate
Adjustment Date for the next Auction Period (the "EFFECTIVE DATE").

          2.   The Auction Period Adjustment in Paragraph 1 shall take place
only if (a) the Indenture Trustee and the Auction Agent receive, by 11:00 a.m.,
eastern time, on the Business Day before the Auction Date for the Auction Period
commencing on the Effective Date, a certificate from the Issuer, as required by
the Indenture authorizing the change in length of one or more Auction Periods
and (b) Sufficient Bids exist on the Auction Date for the Auction Period
commencing on the Effective Date.

          3.   If the condition referred to in (a) above is not met, the Auction
Rate for the Auction Period commencing on the Effective Date will be determined
pursuant to the Auction Procedures and the Auction Period shall be the Auction
Period determined without reference to the proposed change. If the condition
referred to in (a) is met but the condition referred to in (b) above is not met,
the Auction Rate for the Auction Period commencing on the Effective Date shall
be the Maximum Rate and the Auction Period shall be the Auction Period
determined without reference to the proposed change.

          4.   It is hereby represented, upon advice of the Auction Agent for
the Class __ Notes described herein, that there were Sufficient Bids for such
Class __ Notes at the Auction immediately preceding the date of this Notice.

          5.   Terms not defined in this Notice shall have the meanings set
forth in the Indenture entered into in connection with the Class __ Notes.


                                            SLM STUDENT LOAN TRUST 2002-7

Dated:                                      By:
      ---------------                          -------------------------------

                                       12
<Page>

                                                                       EXHIBIT F
                                                                TO THE INDENTURE

                      NOTICE ESTABLISHING CHANGE IN LENGTH
                         OF ONE OR MORE AUCTION PERIODS

                          SLM STUDENT LOAN TRUST 2002-7
                            STUDENT LOAN-BACKED NOTES
                                    CLASS __
                               AUCTION RATE NOTES

          Notice is hereby given that the Issuer hereby establishes new lengths
for one or more Auction Periods pursuant to the Indenture of Trust, as follows:

          1.   The change shall take effect on ____________, the Interest Rate
Adjustment Date for the next Auction Period (the "EFFECTIVE DATE").

          2.   The Auction Period commencing on the Effective Date, the Interest
Rate Adjustment Date shall be ___________________, or the next succeeding
Business Day if such date is not a Business Day.

          3.   For Auction Periods occurring after the Auction Period commencing
on the Effective Date, the Interest Rate Adjustment Date shall be
[_______________ (date) and every ___________ (number) ___________ (day of week)
thereafter] [every __________ (number) ______________ (day of week) after the
date set forth in paragraph 2 above], or the next Business Day if any such day
is not a Business Day; PROVIDED, HOWEVER, that the length of subsequent Auction
Periods shall be subject to further change hereafter as provided in the
Indenture of Trust.

          4.   The changes described in paragraphs 2 and 3 above shall take
place only upon delivery of this Notice and the satisfaction of other conditions
set forth in the Indenture of Trust and our prior notice dated __________
regarding the proposed change.

          5.   Terms not defined in this Notice shall have the meanings set
forth in the Indenture entered into in connection with the Class __ Notes.


                                            SLM STUDENT LOAN TRUST 2002-7

Dated:                                      By:
      ---------------                          -------------------------------

                                       13
<Page>

                                                                       EXHIBIT G
                                                                TO THE INDENTURE

                        NOTICE OF CHANGE IN AUCTION DATE

                          SLM STUDENT LOAN TRUST 2002-7
                            STUDENT LOAN-BACKED NOTES
                                    CLASS __
                               AUCTION RATE NOTES

          Notice is hereby given by [ ], as Broker-Dealer for the Auction Rate
Notes, that with respect to the Auction Rate Notes, the Auction Date is hereby
changed as follows:

          1.   With respect to Class __ Notes, the definition of "Auction Date"
shall be deemed amended by substituting "______________ (number) Business Day"
in the second line thereof and by substituting "______________ (number) Business
Days" for "two Business Days" in subsection (d) thereof.

          2.   This change shall take effect on ____________, which shall be the
Auction Date for the Auction Period commencing on_____________.

          3.   The Auction Date for the Class __ Notes shall be subject to
further change hereafter as provided in the Indenture.

          5.   Terms not defined in this Notice shall have the meanings set
forth in the Indenture, as amended, relating to the Class __ Notes.


                                            [BROKER-DEALER], as Broker-Dealer

Dated:                                      By:
      ---------------                          -------------------------------

                                       14