Document:

Sterling
Holdco, Inc.

Stock Incentive Plan

 

Section
1.

Purpose

 

The purpose
of this Plan (as such term and any other capitalized terms used herein without definition are defined in Section 2) is to foster
and promote the long-term financial success of the Company and the Subsidiaries and materially increase stockholder value by (a) motivating
superior performance by means of service- and performance-related incentives, (b) encouraging and providing for the
acquisition of an ownership interest in the Company by Employees, Consultants, and Directors, and (c) enabling the
Company and the Subsidiaries to attract and retain the services of an outstanding management team upon whose judgment, interest,
and special effort the successful conduct of its and their operations is largely dependent.

 

Section
2.

Definitions

 

Whenever used
herein, the following terms shall have the respective meanings set forth below:

 

Act:
the Securities Act of 1933, as amended.

 

Adjustment
Event: shall mean (i) any stock dividend, stock split, or share combination affecting, or extraordinary cash dividend
on, the Common Stock, (ii) any recapitalization, reorganization, merger, consolidation, exchange of shares, spin-off, liquidation,
or dissolution of the Company, (iii) any disposition by the Providence Entities of all or substantially all of the Common
Stock beneficially owned by the Providence Entities other than such a disposition solely for cash, or (iv) any other similar
transaction affecting the Common Stock.

 

Board:
the Board of Directors of the Company.

 

Cause:
shall mean (i) the refusal or neglect of the Participant to perform substantially his or her employment-related duties;
(ii) the Participant’s personal dishonesty, incompetence, willful misconduct, or breach of fiduciary duty; (iii)
the Participant’s conviction of or entering a plea of guilty or nolo contendere (or any applicable equivalent thereof)
to a crime constituting a felony (or a crime or offense of equivalent magnitude in any jurisdiction) or his or her willful violation
of any other law, rule, or regulation (other than a traffic violation or other offense or violation outside of the course of employment
that in no way adversely affects the Company or any Subsidiary or its reputation or the ability of the Participant to perform
his or her employment related duties or to represent the Company or any Subsidiary); or (iv) the material breach by the
Participant of any covenant or agreement with the Company or any Subsidiary, or any written policy of the Company or any Subsidiary,
not to disclose any information pertaining to the Company or any Subsidiary or not to compete or interfere with the Company or
any Subsidiary; provided that with respect to any Participant who is party to an employment agreement with the Company
or any Subsidiary, “Cause” shall have the meaning specified in such Participant’s employment agreement.

 

    	 

    	 

    

 

Change in Control: a transaction or
series of transactions (other than a Public Offering):

 

(i)      involving
the sale, transfer, or other disposition for cash by the Providence Entities to one or more persons or entities that are not, immediately
prior to such sale, affiliates of the Company or the Providence Entities, of all or substantially all of the Common Stock of the
Company beneficially owned by the Providence Entities as of the date of such transaction; or

 

(ii)     involving
the sale, transfer, or other disposition for cash of all or substantially all of the assets of the Company and the Subsidiaries,
taken as a whole, to one or more persons or entities that are not, immediately prior to such sale, transfer, or other disposition,
affiliates of the Company or the Providence Entities.

 

Change in Control Price: the price
per share of Common Stock paid in conjunction with any transaction resulting in a Change in Control (as determined in good faith
by the Committee if any part of the offered price is payable other than in cash).

 

Code: the Internal Revenue Code of
1986, as amended.

 

Committee: the Board or any authorized
committee thereof.

 

Common Stock: the common stock of the
Company, par value $0.01 per share.

 

Company: Sterling Holdco, Inc., a Delaware
corporation, and any successor thereto.

 

Consultant: any Person who provides
services to the Company who is not also an Employee or a Director of the Company.

 

Director: a member of the Board of
Directors of the Company who is not also an Employee of the Company.

 

    	2

    	 

    

 

Disability: a physical or mental impairment
that renders a Participant unable to perform the essential functions of the Participant’s position even with reasonable accommodation
(that does not impose an undue hardship on the Company), and which has lasted at least 60 consecutive days; provided
that with respect to any Participant who is party to an employment agreement with the Company or any Subsidiary, “Disability”
shall have the meaning specified in such Participant’s employment agreement. A physician selected by the Company or its insurers
shall make the determination of the existence of a Disability.

 

Effective Date: the “Closing
Date” as defined in the Management Stockholders Agreement.

 

Employee: any officer or other key
employee of the Company or any Subsidiary.

 

Expiration Date: the meaning
set forth in Section 9.16.

 

Fair Market Value: if no Public
Offering has occurred, the fair market value of a share of Common Stock shall be equal to the value most recently established by
the Board, adjusted, if deemed necessary or advisable by the Board, for significant developments occurring since the date such
value was established by the Board. Following a Public Offering, the Fair Market Value, on any date of determination shall mean
the closing price for a share of Common Stock as reported on a national exchange for or a nationally recognized system of price
quotation for such date or, if there is no such closing price for such date, for the most recent date with respect to which such
closing price is available. In the event that there are no Common Stock transactions reported on such exchange or system on such
date, Fair Market Value shall mean the closing price on the immediately preceding date on which Common Stock transactions were
so reported. In all events, the Fair Market Value shall be determined in a manner consistent with Section 409A of the Code.

 

Management Stockholders Agreement:
the Management Stockholders Agreement, dated as of February 9, 2012, among the Company and certain other stockholders of the
Company, as it may be amended from time to time.

 

Nonqualified Stock Option: an Option
that is not an “incentive stock option” within the meaning of Section 422 of the Code.

 

Option: the right to purchase Common
Stock pursuant to the terms of the Plan at a stated price for a specified period of time. For purposes of the Plan, an Option shall
be a Nonqualified Stock Option.

 

Participant: any Employee, Consultant,
or Director designated by the Committee to receive an Option under the Plan.

 

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Payments: the meaning set forth in
Section 7.2.

 

PEP VI: Providence Equity Partners
VI L.P., a Delaware limited partnership.

 

PEP VI-A: Providence Equity Partners
VI-A L.P., a Delaware limited partnership.

 

Permitted Transferee: a transferee
permitted under Section 1(a) of the Management Stockholders Agreement.

 

Person: the meaning set forth in the
Management Stockholders Agreement.

 

Plan: this Sterling Holdco, Inc. Stock
Incentive Plan, as the same may be amended from time to time in accordance with its terms.

 

Providence Entities: collectively,
PEP VI, PEP VI-A, Providence Equity Partners, L.L.C., and any of their affiliates or any other investment fund or similar fund
managed or advised by PEP VI, PEP VI-A, or Providence Equity Partners, L.L.C.

 

Public Offering: a public offering
pursuant to an effective registration statement filed with the Securities and Exchange Commission that covers shares of Common
Stock that, after the closing of such public offering, will be traded on the New York Stock Exchange, the American Stock Exchange,
or the National Association of Securities Dealers Automated Quotation System or any comparable non-U.S. exchange or system.

 

Subsidiary: any corporation, a majority
of whose outstanding voting securities is owned, directly or indirectly, by the Company.

 

Section
3.
Eligibility and Participation

 

Participants in the Plan shall be those Employees,
Consultants, and Directors selected by the Committee to participate in the Plan and receive Options (which may include Employees,
Consultants, or Directors who are members of the Committee). The selection of an Employee, Consultant, or Director as a Participant
shall neither entitle such Employee, Consultant, or Director to, nor disqualify such Employee, Consultant, or Director from, participation
in any other award or incentive plan of the Company or any Subsidiary.

 

    	4

    	 

    

 

Section
4.

Administration

 

4.1.        Power
to Grant and Establish Terms of Options. The Committee shall have the discretionary authority, subject to the terms of the
Plan, to determine the Employees, Consultants, or Directors to whom Options shall be granted (which may include Employees, Consultants,
or Directors who are members of the Committee) and the terms and conditions of any and all Options, including, but not limited
to, the number of shares of Common Stock covered by each Option, the time or times at which Options shall be granted, and the terms
and provisions of the instruments by which Options shall be evidenced. Subject to the terms of the Plan, the terms and conditions
of each Option shall be determined by the Committee at the time of grant and, subject to Section 8, such terms and conditions shall
not be subsequently changed in a manner that would be adverse to the Participant without the consent of the Participant to whom
such Option has been granted. The Committee may establish different terms and conditions for different Participants receiving Options
and for the same Participant for each Option such Participant may receive, whether or not granted at the same or different times.
The grant of any Option to any Employee, Consultant, or Director shall neither entitle such Employee, Consultant, or Director to,
nor disqualify him or her from, the grant of any other Option.

 

4.2.      Substitute
Options. The Committee shall have the right, subject to the consent of Participants to whom Options have been granted, to grant
in substitution for outstanding Options, replacement Options that may contain terms more favorable to the Participant than the
Options they replace, including, without limitation, a lower exercise price for any Options (subject to Section 6.2), and
to cancel replaced Options.

 

4.3.      Administration.
The Committee shall be responsible for the administration of the Plan. Any Options granted by the Committee may be subject to such
conditions, not inconsistent with the terms of the Plan, as the Committee shall determine. The Committee shall have full discretionary
authority to prescribe, amend, and rescind rules and regulations relating to the Plan, to provide for conditions deemed necessary
or advisable to protect the interests of the Company, to interpret the Plan, and to make all other determinations necessary or
advisable for the administration and interpretation of the Plan and to carry out its provisions and purposes. Any determination,
interpretation, or other action made or taken (including any failure to make any determination or interpretation, or take any other
action) by the Committee pursuant to the provisions of the Plan shall be final, binding, and conclusive for all purposes and upon
all persons and shall be given deference in any proceeding with respect thereto.

 

    	5

    	 

    

 

Section
5.

Stock Subject to the Plan

 

5.1.       
Number. Subject to the provisions of Section 5.3, the number of shares of Common Stock subject to Options under the Plan
may not exceed 58,169 shares. The shares of Common Stock to be delivered under the Plan may consist, in whole or in part,
of shares held in treasury or authorized but unissued shares not reserved for any other purpose.

 

5.2.       Cancelled,
Terminated or Forfeited Options. Any shares of Common Stock subject to an Option that for any reason expires or is cancelled,
terminated, forfeited, substituted, or otherwise settled without the issuance of such shares of Common Stock shall again be available
for grant under the Plan.

 

5.3.       Adjustment
in Capitalization. If and to the extent necessary or appropriate to reflect any Adjustment Event, the Board shall adjust the
number of shares of Common Stock available for issuance under the Plan and the number, class, and exercise price of any outstanding
Option, and/or make such substitution, revision, or other provisions with respect to any outstanding Option or the holder or holders
thereof, in each case as it determines to be equitable. Without limiting the generality of the foregoing, in the event of any such
transaction, the Board shall have the power to make such changes as it deems appropriate in the number and type of shares covered
by outstanding Options, the prices specified therein (if applicable), and the securities, cash, or other property to be received
upon the exercise, settlement, or conversion thereof. In addition and for the avoidance of doubt, in the event of a merger transaction,
each outstanding Option shall be treated as provided for in the agreement entered into in connection with such transaction. After
any adjustment made pursuant to this Section 5.3, the number of shares subject to each outstanding Option shall be rounded
down to the nearest whole number. Any action taken pursuant to this Section 5.3 shall be effected in a manner that is exempt
from or otherwise complies with Section 409A of the Code. Any determination made by the Board under this Section 5.3
shall be final, binding, and conclusive on all persons having or claiming any right hereunder.

 

Section
6.

Stock Options

 

6.1.       Grant
of Options. Options may be granted to Participants at such time or times as shall be determined by the Committee. Options pursuant
to this Plan shall be Nonqualified Stock Options. The date of grant of an Option under the Plan will be the date on which the Option
is awarded by the Committee. The Committee shall determine the number of Options, if any, to be granted to a Participant. Each
Option shall be evidenced by an Option agreement that shall specify the exercise price, the duration of the Option, the number
of shares of Common Stock to which the Option pertains, and the conditions upon which the Options or any portion thereof shall
become vested or exercisable.

 

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6.2.      Option
Price. Options granted pursuant to the Plan shall have an exercise price per share of Common Stock determined by the Committee;
provided that such per share exercise price may not be less than the Fair Market Value of a share of Common Stock on the
date the Option is granted.

 

6.3.      Exercise
of Options. Options awarded to a Participant under the Plan shall be exercisable at such times and shall be subject to such
restrictions and conditions, including the performance of a minimum period of service or the satisfaction of performance goals,
as the Committee may impose at the time of grant of such Options, subject to the Committee’s right to accelerate the exercisability
of such Options in its discretion. Notwithstanding the foregoing, no Option shall be exercisable on or after the tenth anniversary
of the date on which it is granted. Except as may be provided in any provision approved by the Committee pursuant to this Section 6.3,
after becoming exercisable each installment of an Option shall remain exercisable until expiration, termination, or cancellation
of the Option. Subject to Section 9.6, an Option may be exercised from time to time, in whole or in part, up to the total
number of shares of Common Stock with respect to which it is then exercisable.

 

6.4.      Payment.
The Committee shall establish procedures governing the exercise of Options, which shall require that (x) as a condition
to the issuance of any shares of Common Stock upon the exercise of the Options prior to a Public Offering, the Participant become
a party to the Management Stockholders Agreement with respect to such shares, (y) written notice of exercise be given to
the Company, and (z) the Option exercise price be paid in full at the time of exercise in (i) cash or cash equivalents,
(ii) following a Public Offering, in unencumbered shares of Common Stock that have been owned by the Participant for at
least such period as is required by applicable accounting standards to avoid a charge to earnings and that have an aggregate Fair
Market Value on the date of exercise equal to such aggregate Option exercise price, (iii) in a combination of cash and such
unencumbered shares of Common Stock, or (iv) in accordance with such other procedures or in such other forms as the Committee
shall from time to time determine. Subject to Section 9.4, as soon as practicable after receipt of a written exercise notice,
payment of the Option exercise price, and receipt of evidence of the Participant’s execution of the Management Stockholders
Agreement in accordance with this Section 6.4, the Company shall deliver to the Participant a certificate or certificates
representing the acquired shares of Common Stock.

 

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6.5.      Termination
of Employment Due to Death or Disability. Unless otherwise determined by the Committee at the time of grant, in the event a
Participant’s employment or service with the Company or any Subsidiary terminates by reason of death or Disability, any Options
granted to such Participant, on or prior to the date of such termination that have become exercisable in accordance with Section 6.3,
may be exercised by the Participant or the Participant’s designated beneficiary (or, if no such beneficiary is named, in
accordance with Section 9.2) at any time prior to the first anniversary of the Participant’s termination of employment
or the expiration of the term of the Options, whichever period is shorter (unless earlier terminated pursuant to Section 7.1).

 

6.6.      Termination
of Employment For Cause. Unless otherwise determined by the Committee at the time of grant, in the event a Participant’s
employment or service with the Company or any Subsidiary is terminated for Cause, all Options granted to such Participant that
are then outstanding (whether or not exercisable on or prior to the date of such termination) shall be immediately forfeited and
cancelled.

 

6.7.      Termination
of Employment for Any Other Reason. Unless otherwise determined by the Committee at or after the time of grant, in the event
the Participant’s employment or service with the Company or any Subsidiary terminates for any reason other than one described
in Section 6.5 or 6.6, any Options granted to such Participant on or prior to the date of such termination that have become exercisable
in accordance with Section 6.3, may be exercised at any time during the 60 day period following the Participant’s termination
of employment or the expiration of the term of such Options, whichever period is shorter (unless earlier terminated pursuant to
Section 7.1).

 

6.8.      Termination
of Options. Unless otherwise determined by the Committee at the date of grant, upon the termination of a Participant’s
employment or service, any Options that are not then exercisable shall terminate and be cancelled effective upon the date of such
termination.

 

6.9.      Board
Discretion. Notwithstanding anything else contained in this Section 6 to the contrary, the Board or Committee may permit all
or any portion of any Options to be exercised following a Participant’s termination of employment or service for any reason
on such terms and subject to such conditions not less favorable to such Participant than those terms and conditions provided for
herein or in the Option agreement evidencing the grant to such Participant of the applicable Options, as the Committee shall determine
for a period up to and including, but not beyond, the expiration of the term of such Options.

 

    	8

    	 

    

 

Section
7.

Change in Control

 

7.1.      Accelerated
Vesting and Payment. Unless otherwise consented to by a Participant, in the event of a Change in Control, each Option held
by that Participant that, by its terms, becomes exercisable solely upon the completion of a stated period of service (whether or
not then exercisable), together with any outstanding Options held by that Participant that, prior to or in connection with such
Change in Control, have become exercisable in connection with the attainment of performance objectives, shall be cancelled in exchange
for a payment in cash by the Company to such Participant of an amount equal to the excess of the Change in Control Price over the
exercise price for such Option. All other Options shall be cancelled automatically for no consideration.

 

7.2.      Limitation
on Benefits. Notwithstanding anything contained in the Plan or an Option agreement to the contrary, (i) to the extent
that any of the payments and benefits provided for under the Plan, an applicable Option agreement, or any other agreement or arrangement
between the Company and a Participant (collectively, the “Payments”) would constitute a “parachute payment”
within the meaning of Section 280G of the Code, the amount of such Payments shall be reduced to the amount that would result
in no portion of the Payments being subject to the excise tax imposed pursuant to Section 4999 of the Code; and (ii)
if and to the extent any Payments in respect of the Options that vest based on the performance of a minimum period of service would,
absent application of this clause (ii), be an “excess parachute payment” within the meaning of Section 280G
of the Code (and the regulations promulgated thereunder), such Options shall not accelerate in the event of a Change in Control
(notwithstanding Section 7.1), and shall be honored, assumed, or new rights substituted therefor by a Participant’s
employer (or the parent or a subsidiary of such employer) in such Change in Control. If Payments that would otherwise be reduced
or eliminated, as the case may be, pursuant to the immediately preceding sentence would not be so reduced or eliminated, as the
case may be, if the shareholder approval requirements of Section 280G(b)(5) of the Code are capable of being satisfied, the
Company shall use its reasonable best efforts to cause such Payments to be submitted for such approval prior to the Change in Control
giving rise to such Payments.

 

Section
8.

Amendment, Modification, and Termination of the Plan

 

8.1.      In
General. The Committee may at any time and from time to time alter, amend, suspend, or terminate the Plan in whole or in part,
including imposing reasonable blackout periods on Options. Except as provided in this Section 8.1 or in Section 8.2,
no such alteration, amendment, or termination shall adversely affect any outstanding Options without the consent of the holders
of a majority of such Options having similar terms unless the Committee determines that such amendment or alteration is necessary
or advisable to comply with applicable law as a result of changes in law or regulation or to avoid the imposition of an additional
tax, interest, or penalty under Section 409A.

 

    	9

    	 

    

 

8.2.      Public
Offering. The Committee may amend any outstanding Options to provide for (i) the substitution of the exercisability
criteria that may relate to the Providence Entities’ return on its investment with criteria based on stock price and (ii)
the imposition of certain blackout periods, in each case, as the Committee shall determine to be appropriate.

 

Section
9.

Miscellaneous Provisions

 

9.1.      Nontransferability
of Options; Stockholder Rights. Unless the Committee shall permit (on such terms and conditions as it shall establish) an Option
to be transferred to a Permitted Transferee, no Option granted under the Plan may be sold, transferred, pledged, assigned, or otherwise
alienated or hypothecated, other than by will or by the laws of descent and distribution. All rights with respect to any Option
granted to a Participant under the Plan shall be exercisable during his or her lifetime only by such Participant or, if permitted
by the Committee, any such Permitted Transferee. A Participant shall have no rights as a stockholder with respect to an Option
prior to the issuance of Common Stock in respect thereof.

 

9.2.      Beneficiary
Designation. Each Participant under the Plan may from time to time name any beneficiary or beneficiaries (who may be named
contingently or successively) to whom any benefit under the Plan is to be paid or by whom any right under the Plan is to be exercised
in case of his or her death. Each designation will revoke all prior designations by the same Participant, shall be in a form prescribed
by the Committee, and will be effective only when filed by the Participant in writing with the Committee during his or her lifetime.
In the absence of any such designation, benefits remaining unpaid or Options outstanding and exercisable at the Participant’s
death shall be paid to or exercisable by the Participant’s surviving spouse, if any, or otherwise to or by his or her estate.

 

9.3.      No
Guarantee of Employment or Participation; No Additional Compensation for Loss of Rights Under Plan. Nothing in the Plan shall
interfere with or limit in any way the right of the Company or any Subsidiary to terminate any Participant’s employment or
service at any time, nor confer upon any Participant any right to continue in the employ or service of the Company or any Subsidiary.
If any Participant’s employment or service with the Company or any Subsidiary shall be terminated for any reason, such Participant
shall not be entitled to any compensation or other form of remuneration with respect to such termination (except as otherwise provided
herein) to compensate such Participant for the loss of any rights under the Plan notwithstanding any provision to the contrary
in his or her contract of employment.

 

    	10

    	 

    

 

9.4.      Tax
Withholding. The Company or any Subsidiary shall have the power to withhold, or require a Participant to remit to the Company
or such Subsidiary promptly upon notification of the amount due, an amount (in cash or in shares of Common Stock otherwise deliverable
to a Participant upon the vesting, exercise, or settlement of an Option) sufficient to satisfy the statutory minimum federal, state,
local, and foreign withholding tax requirements with respect to any Option.

 

9.5.      No
Limitation on Compensation. Nothing in the Plan shall be construed to limit the right of the Company to establish other plans
or to pay compensation to its employees in cash or property.

 

9.6.      Requirements
of Law. The granting of Options, the exercisability of any Options, and the issuance of shares of Common Stock shall be subject
to all applicable laws, rules, and regulations and to such approvals by any governmental agencies or national securities exchanges
as may be required.

 

9.7.      Governing
Law. The Plan, and all agreements hereunder, shall be governed by and construed in accordance with the law of the State of
Delaware, regardless of the law that might be applied under principles of conflict of laws.

 

9.8.      No
Impact on Benefits. Options granted under the Plan are not compensation for purposes of calculating an Employee’s rights
under any employee benefit plan except to the extent expressly provided therein.

 

9.9.      Securities
Law Compliance. Instruments evidencing the grant of Options may contain such other provisions, not inconsistent with the Plan,
as the Committee deems advisable, including a requirement that a Participant represent to the Company in writing, when such Participant
receives shares upon exercise of an Option (or at such other time as the Committee deems appropriate) that such Participant is
acquiring such shares (unless they are then covered by an effective registration statement filed under the Act) for such Participant’s
own account for investment only and with no present intention to transfer, sell, or otherwise dispose of such shares except such
disposition by a legal representative as shall be required by will or the laws of any jurisdiction in winding up the estate of
such Participant. Such shares shall be transferable only if the proposed transfer shall be permissible pursuant to the Plan and
if, in the opinion of counsel satisfactory to the Company, such transfer at such time will be in compliance with all applicable
securities laws.

 

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9.10.      Section
409A Compliance. The Plan is intended to be administered in a manner consistent with the requirements of Section 409A
of the Code and the applicable rules, regulations, and guidance promulgated thereunder, and Options granted hereunder are intended
to be exempt from Section 409A; provided that in no event shall the Company, the Committee, or any of the Company’s
directors, officers, or employees have any liability to any person in the event any such Section 409A provision applies to
any such Option in a manner that results in adverse tax consequences for the Participant or any of the Participant’s beneficiaries
or transferees.

 

9.11.      Freedom
of Action. Nothing in the Plan or any agreement entered into pursuant to this Plan shall be construed as limiting or preventing
the Company or any Subsidiary from taking any action with respect to the operation or conduct of its business that it deems appropriate
or in its best interest.

 

9.12.      No
Fiduciary Relationship. Nothing contained in the Plan and no action taken pursuant to the Plan shall create or be construed
to create a trust of any kind or any fiduciary relationship between the Company or any Subsidiary and any Participant or executor,
administrator, or other personal representative or designated beneficiary of such Participant, or any other persons.

 

9.13.      Unsecured
Creditor; Plan Not Subject to ERISA. To the extent that any Participant or his or her executor, administrator, or other personal
representative, as the case may be, acquires a right to receive any payment from the Company pursuant to this Plan, such right
shall be no greater than the right of an unsecured general creditor of the Company. Any reserves that may be established by the
Company in connection with this Plan shall continue to be held as part of the general funds of the Company, and no individual or
entity other than the Company shall have any interest in such funds until paid to a Participant. The Plan is not intended to be
subject to the Employment Retirement Income and Security Act of 1974, as amended.

 

9.14.      Severability
of Provisions. If any provision of this Plan shall be held invalid or unenforceable, such invalidity or unenforceability shall
not affect any other provisions hereof, and this Plan shall be construed and enforced as if such provision had not been included.

 

9.15.      Meaning
of the Term “Employment.” The terms “employ,” “employee,” and “employment”
as used in this Plan and in any Option agreement shall be deemed to refer to the provision of services to the Company or one or
more of its Subsidiaries as an employee, consultant, or director (whichever may be applicable to the Participant), and the phrase
“termination of employment” (and corollary terms) shall mean the termination of such services to the Company and all
of its Subsidiaries in all such capacities.

 

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9.16.      Term
of Plan. This Plan shall be effective as of Effective Date and shall expire on the tenth anniversary of the date on which shareholders
approve the Plan (the “Expiration Date”), unless sooner terminated pursuant to Section 8; provided that
the Expiration Date shall have no effect on Options outstanding on the Expiration Date.

 

    	13EXECUTION VERSION

 

Sterling Holdco, Inc.

NONQUALIFIED STOCK OPTION AGREEMENT

 

This NONQUALIFIED STOCK OPTION AGREEMENT (the
“Agreement”), dated as of February 9, 2012, is entered into by and between Sterling Holdco, Inc.,
a Delaware corporation (the “Company”), and «First_Name» «Last_Name» (the “Participant”),
pursuant to the Sterling Holdco, Inc. Stock Incentive Plan, as in effect and as amended from time to time (the “Plan”).
Capitalized terms that are not defined herein shall have the meanings given to such terms in the Plan.

 

WHEREAS, the Company desires to grant options
to purchase shares of its common stock, par value $0.01 per share (the “Common Stock”) to certain key employees
and nonemployee directors of the Company;

 

WHEREAS, the Company has adopted the Plan
in order to effect such grants; and

 

WHEREAS, the Participant is a key employee
or nonemployee director as contemplated by the Plan, and the Committee has determined that it is in the interest of the Company
to grant these options to the Participant.

 

NOW, THEREFORE, in consideration of the premises
and subject to the terms and conditions set forth herein and in the Plan, the parties hereto agree as follows:

 

1.           Confirmation
of Grant, Option Price.

 

(a)         Confirmation
of Grant. The Company hereby evidences and confirms the grant to the Participant, effective as of the date hereof (the “Grant
Date”), of:

 

(i)         options
to purchase from the Company «Time» shares of Common Stock, which shall become exercisable, if at all, as provided
in Section 2(a) (the “Service Options”); and

 

(ii)         options
to purchase from the Company «Performance» shares of Common Stock, which shall become exercisable, if at all,
as provided in Section 2(b) (the “Performance Options”).

 

(b)         Option
Price. The Options shall have an option price of $1,000 per share (the “Option Price”), which is
the Fair Market Value per share of the Common Stock on the Grant Date.

 

    	 

    	 

    

 

(c)         Options
Subject to Plan. The Options granted pursuant to this Agreement are subject in all respects to the Plan, all of the terms of
which are made a part of and incorporated into this Agreement. By signing this Agreement, the Participant acknowledges that he
or she has been provided a copy of the Plan and has had the opportunity to review such Plan.

 

(d)         Character
of Options. The Options granted hereunder are not intended to be “incentive stock options” within the meaning of
Section 422 of the Internal Revenue Code of 1986, as amended (the “Code”).

 

2.           Exercisability.

 

(a)         Service
Options. The Service Options shall become exercisable in five equal installments on each of the first five anniversaries of
July 20, 2011, subject to the Participant’s continuous employment or service with the Company or a Subsidiary from the
Grant Date to such anniversary.

 

(b)         Performance
Options.

 

(i)         Vesting.
The Performance Options shall become exercisable, if at all, based on the Providence Entities’ return on their investment
as follows: (i) if the Aggregate Proceeds, when converted into a return per share of Common Stock, are equal to $2,500 per
share (the “Aggregate Floor Value”), 50% of the Performance Options shall become exercisable; and (ii)
if the Aggregate Proceeds, when converted into a return per share of Common Stock, are equal to or greater than $3,000 per share
(the “Aggregate Maximum Value”), 100% of the Performance Options shall become exercisable. The determination
of whether any Performance Options shall have become exercisable shall be made as of the occurrence of an Exit Event and shall
include all cash sales proceeds for, or cash dividends or other distributions on, the Common Stock received by the Providence Entities
prior to and in connection with the Exit Event.

 

(ii)         Termination
of Options. In the event that any portion of the Performance Options do not become exercisable pursuant to this Section 2(b)
upon the occurrence of an Exit Event, such portion of such Performance Options shall automatically be cancelled without payment
therefor.

 

(c)         No
Other Accelerated Vesting. The vesting and exercisability provisions set forth in this Section 2 or in Section 5,
or expressly set forth in the Plan, shall be the exclusive vesting and exercisability provisions applicable to the Options and
shall supersede any other provisions relating to vesting and exercisability, unless such other such provision expressly refers
to the Plan by name and this Agreement by name and date.

 

    	2

    	 

    

 

(d)          Definitions.
For purposes of this Agreement the following terms shall have the meanings set forth below:

 

(i)           The
“Aggregate Proceeds” means the actual net cash proceeds received by the Providence Entities for the Common Stock
(whether pursuant to a merger or consolidation, a sale of capital stock or all or substantially all of its assets, extraordinary
dividend, or otherwise) beneficially owned by the Providence Entities. The conversion of the Aggregate Proceeds into a return per
share of Common Stock shall be determined by the Committee. In the event that the Providence Entities hold shares of Common Stock
purchased at more than one price, the return per share of Common Stock shall be calculated by reference to a weighted average.

 

(ii)          An
“Exit Event” means a transaction or series of transactions (other than a Public Offering):

 

(I)          involving
the sale, transfer, or other disposition for cash by the Providence Entities to one or more persons that are not, immediately prior
to such sale, affiliates of the Providence Entities, of all or substantially all of the interests of the Company beneficially owned
by the Providence Entities as of the date of such transaction; or

 

(II)         involving
the sale, transfer, or other disposition for cash of all or substantially all of the assets of the Company and its Subsidiaries,
taken as a whole, to one or more Persons that are not, immediately prior to such sale, transfer or other disposition, affiliates
of the Providence Entities.

 

(d)          Normal
Expiration Date. Unless the Options earlier terminate in accordance with Sections 2, 4, or 5, the Options shall terminate
on the tenth anniversary of the Grant Date (the “Normal Expiration Date”). Once Options have become exercisable
pursuant to this Section 2, such Options may be exercised, subject to the provisions hereof, at any time and from time to
time until the Normal Expiration Date.

 

(e)         Calculations.
All calculations required or contemplated by this Section 2 shall be made in the sole determination of the Committee in
good faith and shall be final and binding on the Company and the Participant.

 

(f)         Board
Discretion. Notwithstanding the foregoing, the Board may accelerate the exercisability of any Option, all Options, or any class
of Options at any time and from time to time.

 

    	3

    	 

    

 

3.           Method
of Exercise and Payment.

 

All or part of the exercisable Options may
be exercised by the Participant upon (a) the Participant’s written notice to the Company of exercise; (b)
the Participant’s payment of the Option Price in full at the time of exercise (i) in cash or cash equivalents, (ii)
following a Public Offering, in unencumbered shares of Common Stock owned by the Participant that have been owned by the Participant
for at least such period as is required by applicable accounting standards to avoid a charge to earnings and that have an aggregate
Fair Market Value on the date of exercise equal to such aggregate Option Price, (iii) in a combination of cash and such
unencumbered shares of Common Stock, or (iv) in accordance with such procedures or in such other form as the Committee
shall from time to time determine; and (c) if such Options are exercised prior to a Public Offering, the Participant’s
execution of the Management Stockholders Agreement in order to become a party to such agreements with respect to the shares of
Common Stock issuable upon the exercise of such Options. Notwithstanding clauses (a) and (b) in the preceding sentence,
in the event of the termination of the Participant’s employment prior to a Public Offering (I) by the Company or
a Subsidiary without Cause (including a termination by the Participant that is treated as a termination without Cause if so provided
in an employment agreement to which the Participant is a party), (II) by reason of the Participant’s death, or (III)
by reason of the Participant’s Disability, then in lieu of being required to exercise the Options and pay the Option exercise
price in full at the time of exercise as aforesaid, the Participant may direct the Company to cancel all or a portion of the Options
(to the extent then exercisable), and, in consideration of such cancellation, the Company shall (A) retain (i.e., not issue)
a number of shares of Common Stock (the “Unissued Option Shares”) that have an aggregate Fair Market Value
as of the date of cancellation equal to (x) the aggregate Option exercise price of the portion of the Options so cancelled
and (y) related withholding taxes (and the Participant shall thereupon be deemed to have satisfied his or her obligations
under Section 6), and (B) issue to the Participant a number of shares of Common Stock equal to the portion of the
Options so cancelled minus the number of Unissued Option Shares; provided, however, that the exercise of the Options
in this manner shall not be permitted if such manner of exercise would violate any financing instrument of the Company or any
of its Subsidiaries. As soon as practicable after receipt of a written exercise notice and payment in full of the exercise price
of any exercisable Options and, if applicable, receipt of evidence of the Participant’s execution of the Management Stockholders
Agreement in accordance with this Section 3, but subject to Section 6 below, the Company shall deliver to the Participant
a certificate or certificates representing the shares of Common Stock acquired upon the exercise thereof, registered in the name
of the Participant; provided that if the Company in its sole discretion shall determine that under applicable securities
laws any certificates issued under this Section 3 must bear a legend restricting the transfer of such Common Stock, such
certificates shall bear the appropriate legend.

 

    	4

    	 

    

 

4.            Termination
of Employment or Service.

 

(a)          Termination
of Employment or Service Due to Death or Disability. Unless otherwise determined by the Committee, in the event that the Participant’s
employment or service with the Company or any Subsidiary terminates by reason of the Participant’s death or Disability (each
a “Special Termination”), then all Options held by the Participant that are exercisable as of the date of such
Special Termination may be exercised by the Participant or the Participant’s beneficiary as designated in accordance with
Section 9.2 of the Plan, or if no such beneficiary is named, by the Participant’s estate, at any time prior to 12 months
following the Participant’s termination of employment or the Normal Expiration Date of the Options, whichever period is
shorter (unless earlier terminated pursuant to Section 5). Upon a Special Termination, any Options that are not then exercisable
shall terminate and be cancelled immediately upon such termination of employment.

 

(b)         Termination
for Cause. Unless otherwise determined by the Committee, in the event that the Participant’s employment or service with
the Company or any Subsidiary is terminated for Cause, all Options held by the Participant, whether or not then exercisable, shall
terminate and be cancelled immediately upon such termination of employment or service.

 

(c)          Other
Termination of Employment or Service. Unless otherwise determined by the Committee, in the event that the Participant’s
employment or service with the Company or any Subsidiary terminates for any reason other than (i) a Special Termination
or (ii) for Cause, then any Options held by the Participant that are exercisable at the date of the Participant’s
termination of employment or service shall be exercisable at any time up until the 60th day following the Participant’s
termination of employment or service or the Normal Expiration Date of the Options, whichever period is shorter (unless earlier
terminated pursuant to Section 5). Any Options held by the Participant that are not then exercisable shall terminate and
be cancelled immediately upon such termination of employment or service.

 

(d)         Committee
Discretion. Notwithstanding anything else contained herein to the contrary, the Committee may at any time extend the post-termination
exercise period of all or any portion of the Options up to and including, but not beyond, the Normal Expiration Date of such Options.

 

5.           Change
in Control.

 

(a)          Accelerated
Vesting and Payment. Unless consented to by the Participant, in the event of a Change in Control, (i) each
outstanding Service Option (regardless of whether such Service Options are at such time otherwise exercisable), and
(ii) each outstanding Performance Option exercisable pursuant to Section 2(b) shall be cancelled in exchange for
a payment in cash of an amount equal to the excess, if any, of the Change in Control Price over the Option Price. All other
Options shall be automatically cancelled for no consideration.

 

    	5

    	 

    

 

(b)          Limitation
on Benefits. Notwithstanding anything contained in this Option agreement or the Plan to the contrary, (i) to the extent
that any of the payments and benefits provided for under the Plan, this Agreement, or any other agreement or arrangement between
the Company and the Participant (collectively, the “Payments”) would constitute a “parachute payment”
within the meaning of Section 280G of the Code, the amount of such Payments shall be reduced to the amount that would result
in no portion of the Payments being subject to the excise tax imposed pursuant to Section 4999 of the Code; and (ii)
if and to the extent any Payments in respect of the Service Options would, absent application of this clause (ii), be an
“excess parachute payment” within the meaning of Section 280G of the Code (and the regulations promulgated thereunder),
such Service Options shall not accelerate in the event of a Change in Control (notwithstanding Section 5(a)), and shall be
honored, assumed, or new rights substituted therefor by the new employer in such Change in Control. If Payments that would otherwise
be reduced or eliminated, as the case may be, pursuant to the immediately preceding sentences would not be so reduced or eliminated,
as the case may be, if the shareholder approval requirements of Section 280G(b)(5) of the Code are capable of being satisfied,
the Company shall use its reasonable best efforts to cause such Payments to be submitted for such approval prior to the Change
in Control giving rise to such Payments.

 

6.          Tax
Withholding.

 

Subject to Section 3, whenever Common
Stock is to be issued pursuant to the exercise of an Option or any cash payment is to be made hereunder, the Company or any Subsidiary
shall have the power to withhold, or require the Participant to remit to the Company or such Subsidiary, an amount in cash sufficient
to satisfy the statutory minimum federal, state, and local withholding tax requirements relating to such transaction.

 

7.          Nontransferability
of Awards.

 

No Options granted hereby may be sold, transferred,
pledged, assigned, encumbered, or otherwise alienated or hypothecated, other than by will or by the laws of descent and distribution
or, on such terms and conditions as the Committee shall establish, to a Permitted Transferee. All rights with respect to Options
granted to the Participant hereunder shall be exercisable during his or her lifetime only by such Participant or, if permitted
by the Committee, a Permitted Transferee. Following the Participant’s death, all rights with respect to Options that were
exercisable at the time of the Participant’s death and have not terminated shall be exercised by his or her designated beneficiary,
his or her estate or, if permitted by the Committee, a Permitted Transferee.

 

    	6

    	 

    

 

8.          No
Rights as Stockholder.

 

Except as otherwise required by law, the Participant
shall not have any rights as a stockholder with respect to any shares of Common Stock covered by the Options granted hereby until
such time as the shares of Common Stock issuable upon exercise of such Options have been so issued. Notwithstanding anything else
contained herein to the contrary, the exercise of any portion of the Options conveyed hereby is expressly conditioned upon the
Participant becoming a party to the Management Stockholders Agreement with respect to any shares of Common Stock to be acquired
upon such exercise.

 

9.          Restrictions
on Sale Upon Public Offering.

 

Except as otherwise provided in the Registration
Rights Agreement, the Participant agrees that, in the event that the Company files a registration statement under the Act with
respect to a public offering of any shares of its capital stock, the Participant will not effect any sale or distribution of any
shares of the Common Stock, including but not limited to, pursuant to Rule 144 under the Act, within seven days prior to
and 180 days (or such shorter period as the managing underwriter for any underwritten offering may agree) after the effective
date of the registration statement relating to such registration (the “Trigger Date”), except as part of such
registration or unless, in the case of a sale or distribution not involving a public offering, the transferee agrees in writing
to be subject to this Section 9; provided that with respect to any shelf registration statement on Form S-3,
the Trigger Date shall be the pricing of any offering made under such registration statement and the Participant agrees to execute
a customary holdback agreement with the underwriters for any such public offering.

 

10.          Restrictive
Covenants and Remedies for Breach.

 

(a)          Restrictive
Covenants. In consideration of the receipt of the Options granted pursuant to this Agreement, the Participant agrees
to be bound by the covenants set forth below:

 

(i)          Confidentiality.
The Participant agrees that during the Participant’s employment with the Company or its Subsidiaries, and thereafter, the
Participant shall not disclose confidential or proprietary information, or trade secrets, related to any business of the Company
or its Subsidiaries including without limitation, and whether or not such information is specifically designated as confidential
or proprietary: all business plans and marketing strategies; information concerning existing and prospective markets, suppliers,
and customers; financial information; information concerning the development of new products and services; and technical and non-technical
data related to software programs, design, specifications, compilations, inventions, improvements, patent applications, studies,
research, methods, devices, prototypes, processes, procedures, and techniques. The Participant’s obligations under this
Section 10(a)(i) are indefinite in term.

 

    	7

    	 

    

 

(ii)         Return
of Company Property. The Participant acknowledges that all tangible items containing any confidential or proprietary information
or trade secrets, including without limitation memoranda, photographs, records, reports, manuals, drawings, blueprints, prototypes,
notes, documents, drawings, specifications, software, media, and other materials, including any copies thereof (including electronically
recorded copies), are the exclusive property of the Company and its Subsidiaries, and the Participant shall deliver to the Company
all such material in the Participant’s possession or control upon the Company’s request and in any event upon the termination
of the Participant’s employment with the Company or its Subsidiaries. The Participant shall also return any keys, equipment,
identification or credit cards, or other property belonging to the Company or its Subsidiaries upon termination of the Participant’s
employment or the Company’s request.

 

(iii)         Noncompetition.
The Participant agrees that during the Participant’s employment with the Company or its Subsidiaries, and for the one-year
period following the date on which the Participant’s employment with the Company or its Subsidiaries terminates for any reason,
the Participant shall not directly or indirectly, own, manage, operate, control (including indirectly through a debt or equity
investment), provide services to, be employed by, or be connected in any manner with, any person or entity engaged in any business
that is competitive with (I) the line of business or businesses of the Company or its Subsidiaries in which the Participant
was employed during the Participant’s employment (including any prospective business to be developed or acquired that was
proposed at the date of termination), or (II) any other business of the Company or its Subsidiaries with respect to which
the Participant had substantial exposure during such employment. For avoidance of doubt, if the Participant is a senior officer
of the Company, the restriction contained herein shall relate to the Company and all of its Subsidiaries.

 

(iv)         Nonsolicitation.
The Participant agrees that during the Participant’s employment with the Company or its Subsidiaries, and for the one-year
period thereafter, the Participant shall not, directly or indirectly, on the Participant’s own behalf or on behalf of another:
(I) solicit, recruit, aid, or induce any employee of the Company or its Subsidiaries to leave his or her employment with
the Company or its Subsidiaries in order to accept employment with or render services to another person or entity unaffiliated
with the Company or its Subsidiaries, or hire or knowingly take any action to assist or aid any other person or entity in identifying
or hiring any such employee; (II) solicit, aid, or induce any customer of the Company or its Subsidiaries to purchase
goods or services then sold by the Company or its Subsidiaries from another person or entity, or assist or aid any other person
or entity in identifying or soliciting any such customer; or (III) otherwise interfere with the relationship of the Company
or any of its Subsidiaries with any of its employees, customers, agents, representatives, or suppliers.

 

    	8

    	 

    

 

(b)           Remedies.

 

(i)            Generally.
The Company and the Participant agree that the provisions of this Section 10 do not impose an undue hardship on the Participant
and are not injurious to the public; that these provisions are necessary to protect the business of the Company and its Subsidiaries;
that the nature of the Participant’s responsibilities with the Company under this Agreement provide and/or will provide
the Participant with access to confidential or proprietary information or trade secrets that are valuable and confidential to
the Company and its Subsidiaries; that the Company would not grant Options to the Participant if the Participant did not agree
to the provisions of this Section 10; that the provisions of this Section 10 are reasonable in terms of length of time
and scope; and that adequate consideration supports the provisions of this Section 10. In the event that a court determines
that any provision of this Section 10 is unreasonably broad or extensive, the Participant agrees that such court should narrow
such provision to the extent necessary to make it reasonable and enforce the provisions as narrowed. The Company reserves all
rights to seek any and all remedies and damages permitted under law, including, but not limited to, injunctive relief, equitable
relief, and compensatory damages for any breach of the Participant’s obligations under this Section 10.

 

(ii)           Forfeiture
of Options. Without limiting the generality of the remedies available to the Company pursuant to Section 10(b)(i), if
the Participant, except with the prior written consent of the Company, materially breaches the restrictive covenants contained
in this Section 10, the Participant shall: (I) forfeit any then-outstanding Options (whether vested or unvested);
(II) forfeit any shares of Common Stock acquired on exercise of the Options and then-owned by the Participant; and
(III) pay to the Company in cash any net after-tax gain the Participant realized in cash in connection with the exercise
of the Options (and/or sale of Common Stock underlying the Options). These rights of forfeiture and recoupment are in addition
to any other remedies the Company may have against the Participant for the Participant’s breach of the restrictive covenants
contained in this Section 10.

 

(iii)         Cumulative
Obligations. The Participant’s obligations under this Section 10 shall be cumulative (but not duplicative, nor
operate to extend the length of any such obligations) of any similar obligations the Participant has under the Plan or any other
agreement with the Company or any of its Subsidiaries.

 

    	9

    	 

    

 

11.           Miscellaneous.

 

(a)           Notices.
All notices, requests, demands, letters, waivers, and other communications required or permitted to be given under this Agreement
shall be in writing and shall be deemed to have been duly given if (i) delivered personally, (ii) mailed,
certified or registered mail with postage prepaid, (iii) sent by next-day or overnight mail or delivery, or (iv) sent
by fax, as follows:

 

		(i)	If to the Company, to:

 

Sterling Holdco, Inc.

c/o Providence Equity Partners L.L.C. 

50 Kennedy Plaza

18th Floor

Providence, Rhode Island 02903

Fax: +1 (401) 751-1790

Attention: Christopher C. Ragona

 

with copies to:

 

Debevoise & Plimpton LLP

919 Third Avenue

New York, New York 10022

Fax: +1 (212) 909-6836

Attention: Jonathan F. Lewis

 

and

 

SRA International, Inc. 

4300 Fair Lakes Court

Fairfax, Virginia 22033

Fax: +1 (703) 803-1509

Attention: General Counsel

 

(ii)          If
to the Participant, to the Participant’s last known home address, or to such other person or address as any party shall specify
by notice in writing to the Company. All such notices, requests, demands, letters, waivers, and other communications shall be deemed
to have been received (w) if by personal delivery, on the day after such delivery, (x) if by certified
or registered mail, on the fifth business day after the mailing thereof, (y) if by next-day or overnight mail or delivery,
on the day delivered, or (z) if by fax, on the day delivered, provided that such delivery is confirmed.

 

    	10

    	 

    

 

(b)         Binding
Effect; Benefits. This Agreement shall be binding upon and inure to the benefit of the parties to this Agreement and their
respective successors and assigns. Nothing in this Agreement, express or implied, is intended or shall be construed to give any
person other than the parties to this Agreement or their respective successors or assigns any legal or equitable right, remedy,
or claim under or in respect of any agreement or any provision contained herein.

 

(c)         Waiver.
Either party hereto may by written notice to the other: (i) extend the time for the performance of any of the obligations
or other actions of the other under this Agreement; (ii) waive compliance with any of the conditions or covenants of the
other contained in this Agreement; and (iii) waive or modify performance of any of the obligations of the other under this
Agreement. Except as provided in the preceding sentence, no action taken pursuant to this Agreement, including, without limitation,
any investigation by or on behalf of either party, shall be deemed to constitute a waiver by the party taking such action of compliance
with any representations, warranties, covenants, or agreements contained herein. The waiver by either party hereto of a breach
of any provision of this Agreement shall not operate or be construed as a waiver of any preceding or succeeding breach and no failure
by either party to exercise any right or privilege hereunder shall be deemed a waiver of such party’s rights or privileges
hereunder or shall be deemed a waiver of such party’s rights to exercise the same at any subsequent time or times hereunder.

 

(d)         Applicable
Law. This Agreement shall be governed by and construed in accordance with the law of the State of Delaware, regardless of the
law that might be applied under principles of conflict of laws.

 

(e)         Section
and Other Headings. The section and other headings contained in this Agreement are for reference purposes only and shall not
affect the meaning or interpretation of this Agreement.

 

(f)         Counterparts.
This Agreement may be executed in any number of counterparts, each of which shall be deemed to be an original and all of which
together shall be deemed to be one and the same instrument.

 

[Signature Page Follows]

 

    	11

    	 

    

 

IN WITNESS WHEREOF, the Company and the Participant
have duly executed this Agreement as of the date first above written. 

 

	 	STERLING HOLDCO, INC.
	 	 
	 	By:	
    
	 	 	Name: William L. Ballhaus
	 	 	Title: Chief Executive Officer
	 	 
	 	PARTICIPANT
	 	 
	 	 
	 	«First_Name» «Last_Name»

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