Document:

EX-10.1

 Exhibit 10.1 

FORM OF 
 EMPLOYEE
MATTERS AGREEMENT 
 by and among 

DANAHER CORPORATION, 

POTOMAC HOLDING LLC 

and 
 NETSCOUT SYSTEMS,
INC. 
 dated as of 

[—],
201[—] 

 TABLE OF CONTENTS 

 

							
	 	    	 	  	Page	 
		
	ARTICLE I DEFINITIONS AND INTERPRETATION	  	 	2	  
			
	 Section 1.1
	    	Definitions	  	 	2	  
			
	 Section 1.2
	    	References; Interpretation	  	 	10	  
			
	 Section 1.3
	    	Relation to Other Documents	  	 	10	  
		
	ARTICLE II GENERAL PRINCIPLES	  	 	11	  
			
	 Section 2.1
	    	Assumption and Retention of Liabilities; Related Assets	  	 	11	  
			
	 Section 2.2
	    	Treatment of Compensation and Benefit Arrangements	  	 	12	  
			
	 Section 2.3
	    	Establishment of Newco Benefit Arrangements and Participation in Danaher Benefit Arrangements	  	 	13	  
			
	 Section 2.4
	    	Service Recognition	  	 	13	  
			
	 Section 2.5
	    	Collective Bargaining Agreements	  	 	14	  
			
	 Section 2.6
	    	No Acceleration of Benefits	  	 	14	  
			
	 Section 2.7
	    	Amendment Authority	  	 	14	  
			
	 Section 2.8
	    	No Commitment to Employment or Benefits	  	 	14	  
			
	 Section 2.9
	    	Certain Employment Transfers	  	 	15	  
			
	 Section 2.10
	    	Identification of Newco Employees and Independent Contractors	  	 	16	  
			
	 Section 2.11
	    	Information and Consultation	  	 	17	  
			
	 Section 2.12
	    	Certain Requirements	  	 	17	  
			
	 Section 2.13
	    	Sharing of Information	  	 	17	  
		
	ARTICLE III DEFINED BENEFIT PLANS	  	 	17	  
			
	 Section 3.1
	    	U.S. Retirement Plan Participation	  	 	17	  
			
	 Section 3.2
	    	Non-U.S. Retirement Plan Participation	  	 	18	  
		
	ARTICLE IV DEFINED CONTRIBUTION PLANS	  	 	19	  
			
	 Section 4.1
	    	U.S. Savings Plan Participation	  	 	19	  
			
	 Section 4.2
	    	Non-U.S. Savings Plan Participation	  	 	20	  
		
	ARTICLE V HEALTH AND WELFARE PLANS	  	 	21	  
			
	 Section 5.1
	    	Health and Welfare Plan Participation	  	 	21	  
			
	 Section 5.2
	    	Certain Liabilities	  	 	21	  
			
	 Section 5.3
	    	Time-Off Benefits	  	 	21	  
		
	ARTICLE VI EXECUTIVE BENEFIT PLANS	  	 	22	  
			
	 Section 6.1
	    	Non-Qualified Deferred Compensation Plans	  	 	22	  

  
 -i- 

 TABLE OF CONTENTS 

(continued) 
  

							
	 	    	 	  	Page	 
		
	ARTICLE VII TREATMENT OF DANAHER EQUITY AWARDS	  	 	22	  
			
	 Section 7.1
	    	Retained Danaher Equity Awards	  	 	22	  
			
	 Section 7.2
	    	Cancelled Danaher Equity Awards	  	 	23	  
			
	 Section 7.3
	    	NetScout Retention Awards	  	 	23	  
			
	 Section 7.4
	    	Necessary Actions	  	 	24	  
			
	 Section 7.5
	    	Adjustments	  	 	24	  
			
	 Section 7.6
	    	SEC Registration	  	 	24	  
			
	 Section 7.7
	    	Compliance	  	 	24	  
		
	ARTICLE VIII ADDITIONAL COMPENSATION MATTERS	  	 	25	  
			
	 Section 8.1
	    	Workers’ Compensation Liabilities	  	 	25	  
			
	 Section 8.2
	    	Code Sections 162(m)/409A	  	 	25	  
			
	 Section 8.3
	    	Certain Payroll and Bonus Matters	  	 	25	  
			
	 Section 8.4
	    	Danaher Retention Plan	  	 	26	  
			
	 Section 8.5
	    	Employee Stock Purchase Plan	  	 	26	  
		
	ARTICLE IX INDEMNIFICATION	  	 	26	  
			
	 Section 9.1
	    	Indemnification by the Parties	  	 	26	  
			
	 Section 9.2
	    	Procedures for Indemnification	  	 	26	  
			
	 Section 9.3
	    	Indemnification Obligations Net of Proceeds Received from Third Parties	  	 	28	  
			
	 Section 9.4
	    	Certain Actions; Substitution; Subrogation	  	 	29	  
			
	 Section 9.5
	    	Payments	  	 	29	  
		
	ARTICLE X GENERAL AND ADMINISTRATIVE	  	 	30	  
			
	 Section 10.1
	    	Sharing of Information	  	 	30	  
			
	 Section 10.2
	    	Reasonable Efforts/Cooperation	  	 	30	  
			
	 Section 10.3
	    	Employer Rights	  	 	31	  
			
	 Section 10.4
	    	Effect on Employment	  	 	31	  
			
	 Section 10.5
	    	Consent of Third Parties	  	 	31	  
			
	 Section 10.6
	    	Access to Employees	  	 	31	  
			
	 Section 10.7
	    	Beneficiary Designation/Release of Information/Right to Reimbursement	  	 	31	  

  
 -ii- 

 TABLE OF CONTENTS 

(continued) 
  

							
	 	    	 	  	Page	 
		
	ARTICLE XI MISCELLANEOUS	  	 	32	  
			
	 Section 11.1
	    	Entire Agreement	  	 	32	  
			
	 Section 11.2
	    	Governing Law	  	 	32	  
			
	 Section 11.3
	    	Specific Performance; Jurisdiction	  	 	32	  
			
	 Section 11.4
	    	Waiver of Jury Trial	  	 	33	  
			
	 Section 11.5
	    	Notices	  	 	33	  
			
	 Section 11.6
	    	Amendments and Waivers	  	 	34	  
			
	 Section 11.7
	    	Termination	  	 	35	  
			
	 Section 11.8
	    	No Third-Party Beneficiaries	  	 	35	  
			
	 Section 11.9
	    	Assignability; Binding Effect	  	 	35	  
			
	 Section 11.10
	    	Construction; Interpretation	  	 	35	  
			
	 Section 11.11
	    	Severability	  	 	36	  
			
	 Section 11.12
	    	Counterparts	  	 	36	  
			
	 Section 11.13
	    	Relationship of Parties	  	 	36	  
			
	 Section 11.14
	    	Subsidiaries	  	 	36	  
			
	 Section 11.15
	    	Dispute Resolution	  	 	36	  
			
	 Section 11.16
	    	Guarantee	  	 	37	  

  
 -iii- 

 FORM OF EMPLOYEE MATTERS AGREEMENT 

This Employee Matters Agreement (this “Agreement”) is dated as of [—],
201[—], by and among Danaher Corporation, a Delaware corporation (“Danaher”), Potomac Holdings LLC, a Delaware limited liability company and presently a wholly owned Subsidiary of
Danaher (“Newco”), and NetScout Systems, Inc., a Delaware corporation (“NetScout”) (each a “Party” and together, the “Parties”). 

R E C I T A L S: 

WHEREAS, Danaher is engaged, directly or indirectly, in the Communications Business; 

WHEREAS, the Board of Directors of Danaher has determined that it is advisable and in the best interests of Danaher and Danaher’s
stockholders to separate the Communications Business from the other businesses of Danaher and to divest the Communications Business in the manner contemplated by the Separation and Distribution Agreement, dated as of October 12, 2014 (the
“Distribution Agreement”), by and among Danaher, Newco and NetScout, and the Merger Agreement, dated as of October 12, 2014 (the “Merger Agreement”), by and among Danaher, Newco, NetScout, RS Merger Sub, Inc.,
a Delaware corporation and a direct wholly owned Subsidiary of NetScout (“Merger Sub”), and RS Merger Sub II, LLC, a Delaware limited liability company and a direct wholly owned Subsidiary of NetScout (“Merger Sub
II”); 
 WHEREAS, Danaher currently indirectly owns all of the common units representing limited liability company membership
interests of Newco (the “Newco Common Units”); 
 WHEREAS, the Parties contemplate that, pursuant to the Merger Agreement,
immediately after the Distribution and at the Effective Time, Merger Sub shall be merged (the “First Merger”) with and into Newco, with Newco surviving the First Merger as a wholly owned subsidiary of NetScout, and the Newco Common
Units shall be converted into the right to receive shares of common stock of NetScout on the terms and subject to the conditions of the Merger Agreement and in accordance with the Delaware General Corporation Law and the Delaware Limited Liability
Company Act; 
 WHEREAS, immediately following the First Merger, Newco will merge with and into Merger Sub II, with Merger Sub II surviving
the merger (together with the First Merger, the “Mergers”) in the manner contemplated by the Merger Agreement on the terms and subject to the conditions of the Merger Agreement and in accordance with the Delaware Limited Liability
Company Act; and 
 WHEREAS, pursuant to the Distribution Agreement, Danaher and Newco have agreed to enter into this Agreement for the
purpose of allocating assets, Liabilities and responsibilities with respect to certain employee matters and employee compensation and benefit plans and programs between them and to address certain other employment-related matters. 

NOW, THEREFORE, in consideration of the foregoing and the representations, warranties and covenants and agreements contained herein, and
intending to be legally bound hereby, the Parties agree as follows: 

  
 1 

 ARTICLE I 

DEFINITIONS AND INTERPRETATION 

Section 1.1 Definitions. Capitalized terms used but not defined herein shall have the meanings assigned to such terms in the
Distribution Agreement, and the following terms shall have the following meanings: 
 “Action” means any demand, charge,
claim, action, suit, counter suit, arbitration, mediation, hearing, inquiry, proceeding, audit, review, complaint, litigation or investigation, or proceeding of any nature whether administrative, civil, criminal, regulatory or otherwise, by or
before any federal, state, local, foreign or international Governmental Authority or any arbitration or mediation tribunal. 

“Affiliate” means, with respect to any Person, any other Person directly or indirectly controlling, controlled by, or under
common control with such other Person as of the date on which, or at any time during the period for which, the determination of affiliation is being made. For purposes of this definition, the term “control” (including, with correlative
meanings, the terms “controlled by” and “under common control with”), as used with respect to any Person means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies
of such Person, whether through the ownership of voting securities, by Contract or otherwise. 
 “Agreement” has the
meaning set forth in the preamble. 
 “Automatic Transfer Employees” shall mean any Newco Employee, where local employment
Laws, including but not limited to the Transfer Regulations, provide for an automatic transfer of such employees to Newco by operation of Law upon the transfer of a business as a going concern and such business transfer occurs as a result of the
transactions contemplated by the Separation Agreement. 
 “Benefit Arrangement” means each Benefit Plan and Benefit Policy.

 “Benefit Plan” means, with respect to an entity, each compensation or employee benefit plan, program, policy, agreement
or other arrangement, whether or not “employee benefit plans” (within the meaning of Section 3(3) of ERISA, whether or not subject to ERISA), including any benefit plan, program, policy, agreement or arrangement providing cash- or
equity-based compensation or incentives, health, medical, dental, vision, disability, accident or life insurance benefits or vacation, severance, retention, change in control, termination, deferred compensation, individual employment or consulting,
retirement, pension or savings benefits, supplemental income, retiree benefit, relocation or other fringe benefit (whether or not taxable), or employee loans, that are sponsored or maintained by such entity (or to which such entity contributes or is
required to contribute or in which it participates), and excluding workers’ compensation plans, policies, programs and arrangements. 

“Benefit Policy” means, with respect to an entity, each plan, program, arrangement, agreement or commitment that is a
vacation pay or other paid or unpaid leave policy or practice sponsored or maintained by such entity (or to which such entity contributes or is required to contribute) or in which it participates. 

  
 2 

 “Business Day” means any day that is not a Saturday, a Sunday or other day that
is a statutory holiday under the federal Laws of the United States. In the event that any action is required or permitted to be taken under this Agreement on or by a date that is not a Business Day, such action may be taken on or by the Business Day
immediately following such date. 
 “Cancelled Danaher Equity Award Value” means, with respect to each Newco Employee who
is a holder of Cancelled Danaher Equity Awards, a dollar value equal to the sum of (i) the Cancelled Danaher Option Value in respect of the Cancelled Danaher Options held by such Newco Employee and (ii) the Cancelled Danaher Restricted
Stock Unit Value in respect of the Cancelled Danaher Restricted Stock Units held by such Newco Employee. 
 “Cancelled Danaher
Equity Awards” has the meaning set forth in Section 7.2. 
 “Cancelled Danaher Option Conversion
Ratio” means the quotient of (i) the total number of shares of Danaher Common Stock subject to a Cancelled Danaher Option as of immediately prior to the Closing Date, divided by (ii) 2.5. 

“Cancelled Danaher Option Value” means, with respect to each Cancelled Danaher Option, an amount equal to the greater of
(i) the product of (x) the total number of shares of Danaher Common Stock subject to such Cancelled Danaher Option as of immediately before the Closing Date and (y) the excess of (1) the Danaher Closing Trading Price over
(2) the exercise price per share of such Cancelled Danaher Option; and (ii) the product of (x) the Cancelled Danaher Option Conversion Ratio, multiplied by (y) the Danaher Closing Trading Price. 

“Cancelled Danaher Options” has the meaning set forth in Section 7.2. 

“Cancelled Danaher Restricted Stock Unit Value” means, with respect to each Cancelled Danaher Restricted Stock Unit, an
amount equal to the Danaher Closing Trading Price. 
 “Cancelled Danaher Restricted Stock Units” has the meaning set forth
in Section 7.2. 
 “Closing” has the meaning given to such term in the Merger Agreement. 

“Closing Date” has the meaning given to such term in the Merger Agreement. 

“Code” means the United States Internal Revenue Code of 1986 (or any successor statute), as amended from time to time. 

“Collective Bargaining Agreement” means all agreements with the collective bargaining representatives, employee
representative, trade union, labor or management organization, group of employees, or works councils or similar representative bodies of Newco Employees including all national or sector specific collective agreements which are applicable to Newco
Employees, in each case in effect immediately prior to the Separation Time that set forth terms and conditions of employment of Newco Employees, and all modifications of, or amendments to, such agreements and any rules, procedures, awards or
decisions of competent jurisdiction interpreting or applying such agreements. 

  
 3 

 “Communications Business” has the meaning set forth in the Distribution
Agreement. 
 “Consents” means any consents, waivers or approvals from, or notification requirements to, or authorizations
by, any third parties. 
 “Contract” means any legally binding written or oral agreement, contract, subcontract, lease,
understanding, instrument, note, option, warranty, sales order, purchase order, license, sublicense, insurance policy, benefit plan or commitment or undertaking of any nature, excluding any Permit. 

“Danaher” has the meaning given to such term in the preamble. 

“Danaher Benefit Arrangement” means any Benefit Arrangement sponsored, maintained or contributed to by any member of the
Danaher Group or any ERISA Affiliate thereof. 
 “Danaher Closing Trading Price” means the per share closing trading price
of Danaher Common Stock trading on the “regular way” basis on the New York Stock Exchange on the day before the Distribution Date. 

“Danaher Common Stock” means the issued and outstanding shares of common stock, par value $0.01 per share, of Danaher. 

“Danaher Group” means Danaher and each of its Subsidiaries or Affiliates, but excluding any member of the Newco Group. 

“Danaher Indemnitees” means Danaher, each member of the Danaher Group, and all Persons who are or have been shareholders,
directors, partners, managers, managing members, officers, agents or employees of any member of the Danaher Group (in each case, in their respective capacities as such) (excluding any shareholder of Danaher), together with their respective heirs,
executors, administrators, successors and assigns. 
 “Danaher Non-U.S. Retirement Plan” means the Danaher Benefit
Arrangements set forth on Schedule A, which Schedule A may be supplemented from time to time for sixty (60) days following the date hereof. 

“Danaher Non-U.S. Savings Plan” means the Danaher Benefit Arrangements set forth on Schedule B, which Schedule B may be
supplemented from time to time for sixty (60) days following the date hereof. 
 “Danaher NQDC Plan” means the
Amended & Restated Danaher Corporation & Subsidiaries Executive Deferred Compensation Plan. 
 “Danaher
Option” means an option to purchase shares of Danaher Common Stock granted pursuant to one of the Danaher Stock Plans and held by a Newco Employee as of immediately before the Closing Date. 

  
 4 

 “Danaher Restricted Stock Unit” means a unit granted by Danaher pursuant to one
of the Danaher Stock Plans representing a general unsecured promise by Danaher to deliver a share of Danaher Common Stock upon the satisfaction of a vesting requirement and held by a Newco Employee as of immediately before the Closing Date. 

“Danaher Stock Plans” means, collectively, (i) the Danaher Corporation 2007 Stock Incentive Plan, as amended, and
(ii) the Danaher Corporation Amended and Restated 1998 Stock Option Plan. 
 “Danaher U.S. Retirement Plan” means the
Danaher Corporation & Subsidiaries Pension Plan. 
 “Danaher U.S. Savings Plan” means Danaher
Corporation & Subsidiaries Retirement & Savings Plan. 
 “Danaher Welfare Plans” means any employee
welfare benefit plan within the meaning of Section 3(1) of ERISA (whether or not subject to ERISA) maintained by Danaher or any member of the Danaher Group and in which Newco Employees participate immediately prior to the Separation Time. 

“Delayed Transfer Date” means the date on which it is determined in accordance with Section 2.10 of this Agreement that
a Delayed Transfer Newco Employee is eligible to return to active service. A Delayed Transfer Newco Employee will become a Newco Employee only if and when such Delayed Transfer Newco Employee returns to active service for any member of the Danaher
Group within six (6) months following the Effective Time or such longer period as required by Law or otherwise agreed to by the Parties. 

“Delayed Transfer Newco Employee” means each Newco Employee who is not actively at work as of the Separation Date as a result
of (i) disability (either long-term or short term, in either case as defined in the applicable program or arrangement maintained or sponsored by Danaher or another member of the Danaher Group) or (ii) approved leave of absence; provided
that in no event shall any Newco Employee whose employment transfers to Newco as of or prior to the Separation Date pursuant to applicable Law be deemed to be a Delayed Transfer Newco Employee. 

“Designated Person” has the meaning set forth in Section 2.10(b). 

“Distribution” has the meaning given to such term in the Merger Agreement. 

“Distribution Agreement” has the meaning set forth in the recitals. 

“Distribution Date” has the meaning given to such term in the Distribution Agreement. 

“Effective Time” has the meaning given to such term in the Merger Agreement. 

“Employee Representative” means any works council, employee representative, trade union, labor or management organization,
group of employees or similar representative body for Newco Employees. 

  
 5 

 “Employment Tax Return” means any return, report, certificate, form or similar
statement or document (including any related or supporting information or schedule attached thereto and any information return, amended tax return, claim for refund or declaration of estimated Employment Tax) required to be supplied to, or filed
with, a Tax authority in connection with the determination, assessment or collection of any Employment Tax or the administration of any laws, regulations or administrative requirements relating to any Employment Tax (whether or not a payment is
required to be made with respect to such filing). 
 “Employment Taxes” means any federal, state, local or foreign Taxes,
charges, fees, duties, levies, imposts, rates, social security contributions or other assessments or obligations imposed on, due or asserted to be due from (i) employees or deemed employees of the Danaher Group or employees or deemed employees
of the Newco Group or (ii) the Danaher Group or the Newco Group as employers or deemed employers of such employees, including employers’ and employees’ portions of Federal Insurance Contributions Act (“FICA”) Taxes,
employers’ Federal Unemployment Tax Act (“FUTA”) taxes and state and local unemployment insurance taxes (“SUTA”), and employers’ withholding, reporting and remitting obligations with respect to any such
Taxes or employees’ federal, state and local income taxes that are imposed on or due from employees or deemed employees of the Danaher Group or the Newco Group. 

“ERISA” means the Employee Retirement Income Security Act of 1974, as amended. 

“ERISA Affiliate” means with respect to any Person, each business or entity which is a member of a “controlled group of
corporations,” under “common control” or a member of an “affiliated service group” with such Person within the meaning of Sections 414(b), (c) or (m) of the Code, or required to be aggregated with such Person under
Section 414(o) of the Code, or under “common control” with such Person within the meaning of Section 4001(a)(14) of ERISA. 

“ESPP” has the meaning set forth in Section 8.5. 

“First Merger” has the meaning set forth in the recitals. 

“Governmental Authority” means any federal, state, local, foreign or international court, government, department, commission,
board, bureau, agency, official or other regulatory, administrative or governmental authority or self-regulatory organization. 

“HIPAA” means the Health Insurance Portability and Accountability Act of 1996, as amended. 

“Indemnifying Party” has the meaning set forth in Section 9.2(b). 

“Indemnitee” means each Danaher Indemnitee, Newco Indemnitee or NetScout Indemnitee. 

“Indemnity Payment” has the meaning set forth in Section 9.3(a). 

“Information” means information in written, oral, electronic or other tangible or intangible forms, stored in any medium,
including studies, reports, records, books, Contracts, instruments, surveys, discoveries, ideas, concepts, know-how, techniques, designs, 

  
 6 

 
specifications, drawings, blueprints, diagrams, models, prototypes, samples, flow charts, data, computer data, disks, diskettes, tapes, computer programs or other software, marketing plans,
customer names, communications by or to attorneys (including attorney-client privileged communications), memos and other materials prepared by attorneys or under their direction (including attorney work product), and other technical, financial,
employee or business information or data but in any case excluding back-up tapes. 
 “Integration Team” has the meaning set
forth in Section 2.10(b). 
 “IRS” means the U.S. Internal Revenue Service. 

“Law” means any statute, law (including common law), ordinance, regulation, rule, code or other legally enforceable
requirement of, or Order issued by, a Governmental Authority. 
 “Liabilities” means all debts, liabilities (including
liabilities for Employment Taxes), guarantees, assurances, commitments and obligations, whether fixed, contingent or absolute, asserted or unasserted, matured or unmatured, liquidated or unliquidated, accrued or not accrued, known or unknown, due or
to become due, whenever or however arising (including whether arising out of any Contract or tort based on negligence, strict liability or relating to Employment Taxes payable by a Person in connection with compensatory payments to employees or
independent contractors) and whether or not the same would be required by generally accepted principles and accounting policies to be reflected in financial statements or disclosed in the notes thereto. 

“Losses” has the meaning given to such term in the Distribution Agreement. 

“Merger Agreement” has the meaning set forth in the recitals. 

“Merger Sub” has the meaning set forth in the recitals. 

“Merger Sub II” has the meaning set forth in the recitals. 

“NetScout” has the meaning set forth in the preamble. 

“NetScout Benefit Arrangement” means any Benefit Arrangement sponsored, maintained or contributed to by any member of the
NetScout Group or any ERISA Affiliate thereof immediately following the Effective Time. 
 “NetScout Closing Trading Price”
means the per share closing trading price of NetScout Common Stock trading on the “regular way” basis on the NASDAQ Global Market on the Closing Date. 

“NetScout Group” means NetScout and each of its Affiliates, including after the Closing, the Newco Group. 

“NetScout Indemnitees” means NetScout, each member of the NetScout Group, and all Persons who are or have been shareholders,
directors, partners, managers, managing members, officers, agents or employees of any member of the NetScout Group (in each case, in their respective capacities as such) (excluding any shareholder of NetScout), together with their respective heirs,
executors, administrators, successors and assigns. 

  
 7 

 “NetScout Non-U.S. Retirement Plan” has the meaning set forth in
Section 3.2(b). 
 “NetScout Non-U.S. Savings Plan” has the meaning set forth in Section 4.2(b).

 “NetScout Restricted Stock Unit” means a unit issued by NetScout representing a general unsecured promise by NetScout to
deliver a share of NetScout Common Stock upon the satisfaction of a vesting requirement, which unit is issued pursuant to Section 7 hereof under a stock plan maintained by NetScout. 

“NetScout U.S. Savings Plans” has the meaning set forth in Section 4.1(b). 

“NetScout Welfare Plans” means any employee welfare benefit plan within the meaning of Section 3(1) of ERISA (whether or
not subject to ERISA) maintained by NetScout or any member of the NetScout Group and in which Newco Employees participate following the Effective Time. 

“Newco” has the meaning set forth in the preamble. 

“Newco Benefit Arrangement” means any Benefit Arrangement sponsored, maintained or contributed to exclusively by one or more
members of the Newco Group. 
 “Newco Employee” means, as of the Separation Date (i) each employee of Danaher’s
Tektronix Communications business, (ii) each employee of Danaher’s Arbor Networks business and (iii) each other employee of any member of the Danaher Group who is determined in accordance with Section 2.10 hereof to be either
(A) primarily dedicated to the Communications Business in the ordinary course or (B) required for the ongoing operation of the Communications Business, and in all cases regardless of whether any such employee is actively at work as of the
Separation Date or is not actively at work as of Separation Date as a result of disability or illness, an approved leave of absence (including military leave with reemployment rights under federal law and leave under the Family and Medical Leave Act
of 1993), vacation, personal day or similar short- or long-term absence. 
 “Newco Group” means Newco and each of the Newco
Subs. Each of the Newco Subs shall be deemed to be members of the Newco Group as of the Separation Time and at all times thereafter up to the Effective Time. 

“Newco Indemnitees” means Newco, each member of the Newco Group, NetScout (from and after the Separation Time), and each of
their respective successors and assigns, and all Persons who are or have been shareholders, directors, partners, managers, managing members, officers, agents or employees of any member of the Newco Group (in each case, in their respective capacities
as such), and their respective heirs, executors, administrators, successors and assigns. 
 “Newco Independent Contractors”
means (i) each independent contractor who provides services to Danaher’s Tektronix Communications business, (ii) each independent contractor who 

  
 8 

 
provides services to Danaher’s Arbor Networks business and (iii) each other independent contractor of any member of the Danaher Group who is determined in accordance with
Section 2.10 hereof to be either (A) primarily dedicated to the Communications Business in the ordinary course or (B) required for the ongoing operation of the Communications Business. 

“Newco Subs” has the meaning set forth in the Distribution Agreement. 

“Non-Automatic Transfer Employees” shall mean any Newco Employee who is not an Automatic Transfer Employee. 

“Non-Designated Person” has the meaning set forth in Section 2.10(b). 

“NQDC Plan” means a plan providing for the deferral of compensation that are not tax qualified within the meaning of the
Section 401(a) of the Code. 
 “Order” means any: (i) order, judgment, injunction, edict, decree, ruling,
pronouncement, determination, decision, opinion, verdict, sentence, subpoena, writ or award issued, made, entered, rendered or otherwise put into effect by or under the authority of any court, administrative agency or other Governmental Authority or
any arbitrator or arbitration panel or (ii) Contract with any Governmental Authority entered into in connection with any Action. 

“Participating Company” means Danaher or any Person (other than an individual) participating in a Danaher Benefit
Arrangement. 
 “Party” or “Parties” has the meaning set forth in the preamble. 

“Pension Transfers” has the meaning set forth in Section 3.2(b). 

“Person” means an individual, a partnership, a corporation, a limited liability company, an association, a joint stock
company, a trust, a joint venture, an unincorporated organization or a Governmental Authority. 
 “Potential Transferees”
has the meaning set forth in Section 2.10(b). 
 “Separation Date” has the meaning set forth in the
Distribution Agreement. 
 “Separation Time” has the meaning set forth in the Distribution Agreement. 

“Subsidiary” means, with respect to any Person, any corporation or other entity (including partnerships and other business
associations and joint ventures) of which at least a majority of the voting power represented by the outstanding capital stock or other voting securities or interests having voting power under ordinary circumstances to elect directors or similar
members of the governing body of such corporation or entity (or, if there are no such voting interests, fifty percent (50%) or more of the equity interests in such corporation or entity) shall at the time be held, directly or indirectly, by
such Person. 
 “Tax” or “Taxes” means all taxes, charges, fees, levies, penalties or other assessments
imposed by any federal, state, local, provincial or foreign taxing authority, including income, 

  
 9 

 
gross receipts, excise, real or personal property, sales, use, transfer, customs, duties, franchise, receipts, license, stamp, occupation, Employment Taxes or other taxes, including any interest,
penalties or additions attributable thereto, and any payments to any state, local, provincial or foreign taxing authorities in lieu of any such taxes, charges, fees, levies or assessments. 

“Tax Benefit Amount” has the meaning set forth in Section 7.3(a). 

“Third-Party Claim” has the meaning set forth in Section 9.2(b). 

“Third-Party Proceeds” has the meaning set forth in Section 9.3(a). 

“Transfer Objection” has the meaning set forth in Section 2.9(e). 

“Transfer Regulations” means (i) all laws of any EU Member State implementing the EU Council Directive 2001/23/EC of
12 March 2001 on the approximation of the laws of the Member States relating to the safeguarding of employees’ rights in the event of transfers of undertakings, businesses or parts of undertakings or businesses (the “Acquired
Rights Directive”) and legislation and regulations of any EU Member State implementing such Acquired Rights Directive, and (ii) any similar laws in any jurisdiction providing for an automatic transfer, by operation of law, of
employment in the event of a transfer of business. 
 Section 1.2 References; Interpretation. Unless the context otherwise
requires: 
 (a) references in this Agreement to Articles, Sections, Exhibits and Schedules shall be deemed references to Articles and
Sections of, and Exhibits and Schedules to, this Agreement; 
 (b) references in this Agreement to any time shall be to the then prevailing
New York City, New York time unless otherwise expressly provided herein; and 
 (c) references to an individual as an “Employee”
are descriptive only and are not necessarily intended to mean that an individual is in fact an employee of any Party. 
 Section 1.3
Relation to Other Documents. To the extent there is any inconsistency between this Agreement and the terms of another agreement pertaining to the Separation or Mergers (other than any Collective Bargaining Agreement) that is the subject of
this Agreement and such inconsistency (i) arises in connection with or as a result of employment with or the performance of services before or after the Separation for any member of the Danaher Group, Newco Group or NetScout Group and
(ii) relates to the allocation of Liabilities attributable to the employment, service, termination of employment or termination of service of all present or former Danaher employees or Newco Employees or any of their dependents and
beneficiaries (and any alternate payees in respect thereof) and other service providers (including any individual who is, or was or is determined to be an independent contractor, temporary employee, temporary service worker, consultant, freelancer,
agency employee, leased employee, on-call worker, incidental worker, or non-payroll worker or in any other employment, non-employment, or retainer arrangement, or relationship with any member of the Danaher Group or the Newco Group), the terms of
this Agreement shall prevail. 

  
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 ARTICLE II 

GENERAL PRINCIPLES 

Section 2.1 Assumption and Retention of Liabilities; Related Assets. 

(a) Effective as of the Separation Time, except as otherwise expressly provided for in this Agreement, Danaher shall, or shall cause one or
more members of the Danaher Group to, assume or retain, as applicable, and pay, perform, fulfill and discharge, in due course in full, (i) all Liabilities under all Danaher Benefit Arrangements, except for any such Liabilities relating to Newco
Employees, whenever incurred; (ii) subject to Section 2.1(b), all Liabilities with respect to the employment, service, termination of employment or termination of service of all employees and independent contractors (other than
Newco Employees and Newco Independent Contractors) of any member of the Danaher Group and their dependents and beneficiaries (and any alternate payees in respect thereof); (iii) all Liabilities relating to the transfer of Newco Employees from
the Danaher Group to the Newco Group that arise in respect of any applicable notice and/or severance obligations or obligations to notify and/or consult in compliance with a Collective Bargaining Agreement or applicable Law, including but not
limited to the Transfer Regulations; provided that any such Liabilities do not arise because of a failure of any member of the Newco Group or NetScout, as applicable, to offer or provide compensation or employee benefits as required by this
Agreement, other than Liabilities to the extent caused by an action, or failure to act, by Danaher which in any case constitutes a breach of this Agreement; and (iv) any other Liabilities or obligations expressly assigned to Danaher or any of
its Affiliates under this Agreement. 
 (b) Effective as of the Separation Time, except as otherwise expressly provided for in this
Agreement but notwithstanding the provisions of Section 2.1(a), Newco shall, or shall cause one or more members of the Newco Group to, assume or retain, as applicable, and pay, perform, fulfill and discharge, in due course in full,
(i) all Liabilities under all Danaher Benefit Arrangements relating to Newco Employees, whenever incurred, and all Liabilities under Newco Benefit Arrangements; (ii) all Liabilities with respect to the employment, service, termination of
employment or termination of service of all Newco Employees and Newco Independent Contractors and their dependents and beneficiaries (and any alternate payees in respect thereof); (iii) all Liabilities with respect to the employment, service,
termination of employment or termination of service of all individuals who are not Newco Employees or Newco Independent Contractors but where (and to the extent) the act or omission giving rise to such Liability arose while such individual was
employed in or providing substantial services to the Communications Business; and (iv) any other Liabilities or obligations expressly assigned to Newco or any of its Affiliates under this Agreement. 

(c) From time to time after the Separation Time, the Parties shall promptly reimburse one another, upon reasonable request of the Party
requesting reimbursement and the presentation by such Party of such substantiating documentation as the other Party shall reasonably request, for the cost of any obligations or Liabilities satisfied or assumed by the Party requesting reimbursement
or its Affiliates that are, or that have been made pursuant to this Agreement, the responsibility of the other Party or any of its Affiliates. Any such reimbursement shall be equal to the cost actually incurred by the Party requesting reimbursement
and shall be submitted to the other Party within 30 days of the payment by the Party requesting reimbursement. 

  
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 (d) Subject to applicable Law and the Tax Matters Agreement, Danaher shall retain responsibility
for all employee-related regulatory filings for reporting periods ending at or prior to the Effective Time, except for Equal Employment Opportunity Commission EEO-1 reports and affirmative action program (AAP) reports and responses to Office of
Federal Contract Compliance Programs (OFCCP) submissions, for which Danaher shall provide data and information (to the extent permitted by applicable Laws and consistent with Section 10.1) to Newco, which shall be responsible for making
such filings in respect of Newco Employees. 
 (e) Danaher shall be the responsible party for preparing and timely filing or causing to be
prepared and timely filed all Employment Tax Returns of any member of the Danaher Group. Danaher shall be liable for all Employment Taxes due on any such Employment Tax Return. Danaher, at its sole expense, shall have exclusive control over the
conduct and resolution of any audit, litigation, contest, dispute, or other proceeding relating to Employment Taxes of any member of the Danaher Group. Newco shall be the responsible party for preparing and timely filing or causing to be prepared
and timely filed all Employment Tax Returns of any member of the Newco Group with respect to periods (or portions thereof) following the Distribution Date. Newco shall be liable for all Employment Taxes due on any such Employment Tax Return. Newco,
at its sole expense, shall have exclusive control over the conduct and resolution of any audit, litigation, context, dispute, or other proceeding relating to Employment Taxes of the Newco Group. 

(f) Notwithstanding anything set forth in this Agreement to the contrary, to the extent that any provision of this Agreement would require any
member of the Newco Group or the NetScout Group to assume any Liability or otherwise perform any obligation in respect of a Delayed Transfer Newco Employee, such assumption or performance shall not occur or otherwise become effective until the
Delayed Transfer Date applicable to such Delayed Transfer Newco Employee. 
 Section 2.2 Treatment of Compensation and Benefit
Arrangements. 
 (a) Unless otherwise required by a Collective Bargaining Agreement and except as otherwise expressly provided for in
this Agreement, and subject to the Newco Group’s obligations in relation to employees who transfer to the Newco Group at the Separation Time pursuant to the Transfer Regulations, (i) for a period of twelve (12) months following the
Closing Date (or such shorter period as any such Newco Employee is employed by NetScout or one of its Affiliates), NetScout will provide or cause to be provided to each Newco Employee (A) a base salary or hourly wage rate, as applicable, that
is at least equal to the base salary or hourly wage rate provided to such Newco Employee immediately prior to the Separation Time and (B) a target annual cash bonus opportunity no less favorable than the target annual cash bonus opportunity in
effect for such Newco Employee, if any, immediately prior to the Separation Time, and (ii) for a period beginning within a reasonable period of time following the Closing Date and ending on December 31 of the calendar year in which the
Closing Date occurs (or such shorter period as any such Newco Employee is employed by NetScout or one of its Affiliates), NetScout will use its reasonable best efforts to provide or cause to be provided to

  
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each Newco Employee health and welfare and retirement benefits that are no less favorable than those provided by NetScout to similarly situated employees of NetScout in the applicable
jurisdiction as of the date hereof (which for U.S. Newco Employees shall be determined by reference to the benefits as described in the NetScout 2014 Summary of Benefits as may be amended for all NetScout U.S. employees). 

(b) Without limiting Section 2.2(a) and subject to the Newco Group’s obligations in relation to employees who transfer to the
Newco Group as of the Separation Time pursuant to the Transfer Regulations and applicable Law, for a period of twelve (12) months following the Effective Time, NetScout shall provide or cause to be provided to each Newco Employee not covered by
Collective Bargaining Agreements severance benefits calculated in a manner no less favorable than those such Newco Employee would have received upon a termination of employment or service immediately prior to the Separation Time. 

Section 2.3 Establishment of Newco Benefit Arrangements and Participation in Danaher Benefit Arrangements. Prior to the Effective
Time, any member of the Newco Group may establish or maintain Newco Benefit Arrangements in accordance with the provisions of Section 2.10 of this Agreement. Except as otherwise expressly provided for in this Agreement or as otherwise
expressly agreed to in writing between the Parties, effective as of the Effective Time, (i) Newco and each member of the Newco Group, to the extent applicable, shall cease to be a Participating Company in any Danaher Benefit Arrangement and
(ii) each Newco Employee shall cease to participate in, be covered by, accrue benefits under, be eligible to contribute to or have any rights under any Danaher Benefit Arrangement (except to the extent of obligations that accrued before the
Effective Time and that remain a Liability of any member of the Danaher Group pursuant to this Agreement), and Danaher and Newco shall take all necessary action to effectuate each such cessation. Notwithstanding the above, and in the event it is not
administratively feasible or practicable to provide coverage to Newco Employees immediately as of the Effective Time under NetScout Benefit Arrangements (as determined by NetScout), Danaher will confer with NetScout regarding the provision of
continued coverage for Newco Employees in Danaher Benefits Arrangements after the Effective Time on terms and conditions satisfactory to Danaher. 

Section 2.4 Service Recognition. Effective as of the Effective Time, and in addition to any applicable obligations under the
Transfer Regulations or other applicable Law, NetScout shall, and shall cause each member of the NetScout Group to, give each Newco Employee full credit for purposes of eligibility, vesting, and determination of level of benefits under any NetScout
Benefit Arrangement for such Newco Employee’s service with any member of the Danaher Group or Newco Group or any predecessor thereto prior to the Effective Time, to the same extent such service was recognized by the applicable Danaher Benefit
Arrangement immediately prior to the Effective Time; provided, that, such service shall not be recognized to the extent such recognition would result in the duplication of benefits. In addition, and without limiting the generality of the
foregoing provisions of this Section 2.4, (i) NetScout shall use reasonable efforts to cause each Newco Employee to be immediately eligible to participate, without any waiting time, in any and all NetScout Benefit Arrangements to
the extent coverage under the NetScout Benefit Arrangement is provided by NetScout to similarly situated employees in the applicable jurisdiction as of the Effective Time, (ii) for purposes of each NetScout Benefit Arrangement that is a
medical, dental or vision benefit plan, NetScout shall use 

  
 13 

 
reasonable efforts to cause all pre-existing condition exclusions and actively-at-work requirements of such NetScout Benefit Arrangement to be waived for such employee and his or her covered
dependents, and (iii) NetScout shall use reasonable efforts to cause any eligible expenses incurred by such employee and his or her covered dependents during the portion of the plan year of the Danaher Benefit Arrangement ending on the date
such employee’s participation in the corresponding NetScout Benefit Arrangement begins to be taken into account under such NetScout Benefit Arrangement for purposes of satisfying all deductible, coinsurance and maximum out-of pocket
requirements applicable to such employee and his or her covered dependents for the applicable plan year as if such amounts had been paid in accordance with the NetScout Benefit Arrangement. 

Section 2.5 Collective Bargaining Agreements. Notwithstanding anything in this Agreement to the contrary, prior to the Effective
Time, Danaher and Newco shall, to the extent required by applicable Law, take or cause to be taken all actions that are necessary (if any) for Newco or a member of the Newco Group to continue to maintain or to assume and honor any Collective
Bargaining Agreements and any pre-existing collective bargaining relationships (in each case including obligations that arise in respect of the period both before and after the date of employment by the Newco Group) in respect of any Newco Employees
and any Employee Representatives. As of the Effective Time, NetScout shall, or shall cause Newco or a member of the Newco Group to continue to maintain or to assume and honor, to the extent required by applicable Law, all Collective Bargaining
Agreements and pre-existing collective bargaining relationships (in each case including obligations that arise in respect of the period both before and after the date of a Newco Employee’s employment by the Newco Group) applicable to any Newco
Employee immediately before the Effective Time. Nothing in this Agreement is intended to alter the provisions of any Collective Bargaining Agreement or modify in any way the obligations of the Danaher Group or the Newco Group to any Employee
Representative or any other Person as described in such agreement. 
 Section 2.6 No Acceleration of Benefits. Except as
otherwise provided in this Agreement, no provision of this Agreement shall be construed to create any right, or accelerate vesting or entitlement, to any compensation or benefit whatsoever on the part of any Newco Employee or other former, current
or future employee of the Danaher Group or Newco Group under any Benefit Arrangement of the Danaher Group or Newco Group. 

Section 2.7 Amendment Authority. Except as otherwise provided in this Agreement, nothing in this Agreement is intended to prohibit
any member of the Danaher Group, Newco Group or NetScout Group from amending or terminating any employee benefit plans, policies or compensation programs at any time on or after the Separation Date. 

Section 2.8 No Commitment to Employment or Benefits. Nothing contained in this Agreement shall be construed as a commitment or
agreement on the part of any individual to continue employment with the Danaher Group, Newco Group or NetScout Group or, except as otherwise provided in this Agreement, as a commitment on the part of the Danaher Group, Newco Group or NetScout Group
to continue the employment, compensation, or benefits of any individual for any period or to provide any recall or similar rights to an individual on layoff or any type of leave of absence. This Agreement is solely for the benefit of the Danaher
Group, Newco Group and NetScout Group and, except to the extent otherwise expressly provided 

  
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herein, nothing in this Agreement, express or implied, is intended to confer any rights, benefits, remedies, obligations or Liabilities under this Agreement upon any Person, including any Newco
Employee or other current or former employee, officer, director or contractor of the Danaher Group, Newco Group or NetScout Group, other than the Parties and their respective successors and assigns. 

Section 2.9 Certain Employment Transfers. 

(a) Danaher shall use reasonable best efforts to cause each Newco Employee to be employed by a member of the Newco Group at the Separation
Time in accordance with applicable Law. Danaher Group and Newco Group agree to execute, and to seek to have the applicable Newco Employees execute, such documentation, if any, as may be necessary to reflect the transfer of employment described in
this Section 2.9. NetScout shall provide the information, within reason, as requested by Danaher and its Affiliates in sufficient time to enable Danaher and its Affiliates to meet their information and consultation requirements pursuant to the
Transfer Regulations, any Collective Bargaining Agreement or otherwise, provided that any such requests are timely received. 
 (b)
Automatic Transfer Employees shall not be terminated upon the Separation Time, but rather the rights, powers, duties, liabilities and obligations of Danaher (or the appropriate member of the Danaher Group) to such employees with respect to their
material terms of employment in force immediately before the Separation Date shall be transferred to the appropriate member of the Newco Group, but only to the extent required by, and only then in accordance with, applicable Law. 

(c) For Non-Automatic Transfer Employees outside of the United States where the transfer of employment is by way of termination/resignation
and re-hire, the appropriate member of the Newco Group shall offer employment to each such employee effective on the Separation Date. Each such offer will be at such employee’s same location and same base salary as is in effect immediately
before the Separation Date and otherwise on substantially the same terms and conditions of employment in the aggregate as was provided by the appropriate member of the Danaher Group immediately before the Separation Date, and which shall comply with
the requirements of Section 2.2 to the extent permitted by Law. For Non-Automatic Transfer Employees outside of the United States where the transfer of employment is by way of employer substitution, the appropriate member of the Danaher
Group shall effectuate an employer substitution on the Separation Date with respect to the employees, in accordance with applicable Law, pursuant to which each appropriate member of the Newco Group will employ the employees, and will acknowledge and
accept all rights, obligations, duties, and responsibilities with respect to such employees as of the Separation Date. Such employer substitution shall comply with the requirements of Section 2.2, the extent permitted by Law. 

(d) Notwithstanding anything set forth in this Agreement to the contrary, the provisions of this Section 2.9 will not apply to any
Delayed Transfer Newco Employee until the Delayed Transfer Date applicable to such Delayed Transfer Newco Employee, unless otherwise required by Law. 

  
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 (e) To the extent a Newco Employee objects, rejects or refuses to transfer to Newco Group (a
“Transfer Objection”), such employee shall remain employed by Danaher, or the appropriate member of the Danaher Group, to the extent permitted by Law. To the extent a Newco Employee transfers to Newco Group despite such
employee’s Transfer Objection, provided that the Transfer Objection is not due to NetScout’s failure to comply with any of its obligations under this Agreement, Danaher shall reimburse and otherwise fully indemnify NetScout for any
Liabilities arising out of the subsequent termination or separation of employment of such Newco Employee, including the costs of notice and severance, arising or resulting from such employee’s objection, rejection or refusal to transfer.
NetScout shall take all reasonable steps to minimize such Liabilities including giving Danaher the opportunity to re-employ such individual. 

Section 2.10 Identification of Newco Employees and Independent Contractors. 

(a) Each employee of, or independent contractor providing services to, Danaher’s Arbor Networks business or Danaher’s Tektronix
Communications business immediately prior to the Separation Time shall automatically be treated as a Newco Employee or Newco Independent Contractor hereunder, respectively. 

(b) With respect to identifying which employees and independent contractors of Danaher’s Fluke Network’s business who are not fully
dedicated to the Communications Business should be treated as a Newco Employee or Newco Independent Contractor, respectively, (the “Potential Transferees”), the Parties agree to establish a human resources integration team
(“Integration Team”) not later than one (1) month following the date of this Agreement consisting from time to time of eight (8) individuals (or such other number as agreed by the Parties), one-half of whom are employees
of Danaher as designated by the vice president of human resources of Danaher and one half of whom are employees of NetScout as designated by the vice president of human resources of NetScout or other designee as determined by NetScout. Such
integration team shall work in good faith to identify and resolve any dispute regarding whether a Potential Transferee should be designated as a Newco Employee or Newco Independent Contractor (a “Designated Person”) or as a Danaher
employee not designated as a Newco Employee or Newco Independent Contractor (a “Non-Designated Person”), with a goal of providing the Newco Group with sufficient operational and management
employees and service providers to operate and manage the Communications Business on a reasonable basis in the opinion of Danaher based upon its experience of operating the Communications Business. To the extent such human resources integration team
is unable to agree on the identity of Newco Employees and/or Newco Independent Contractors not later than two (2) months prior to the contemplated Separation Time, the respective chief human resources officers of Danaher and NetScout shall act
in good faith to resolve such disagreement not later than the Closing Date. If such disagreement cannot be resolved in good faith, then the vice president of human resources of Danaher shall make the final determination. Notwithstanding the
foregoing provisions of this Section 2.10 or the definition of “Newco Employee” or “Newco Independent Contractor” to the contrary, the identification of Newco Employees and Newco Independent Contractors shall be made
subject to and in accordance with the provisions of any applicable collective bargaining obligation and Collective Bargaining Agreement and otherwise in accordance with applicable Law. Additionally, to the extent any member of the Newco Group
desires to adopt or maintain a Newco Benefit Arrangement on behalf of Newco Employees prior to the Effective Time, the 

  
 16 

 
terms and conditions of any such Newco Benefit Arrangement must be approved and authorized by the Integration Team. If the Integration team is unable to agree on the establishment or terms and
conditions of a Newco Benefit Arrangement, the respective chief human resources officers of Danaher and NetScout shall act in good faith to resolve such disagreement as soon as practicable. 

Section 2.11 Information and Consultation. 

(a) Following entry into this Agreement, Danaher shall and shall cause its Subsidiaries and each member of the Newco Group that is to employ
any Newco Employee to comply with all requirements and obligations to inform, consult or otherwise notify any Newco Employees or Employee Representatives in relation to the Separation, Distribution, Mergers and any other consequence of the
transactions contemplated by Distribution Agreement and the Merger Agreement, whether required pursuant to any Collective Bargaining Agreement, the Transfer Regulations or other applicable Law. 

(b) NetScout shall and shall cause its Subsidiaries and Merger Sub to comply with all requirements and obligations to inform, consult or
otherwise notify any NetScout Group employees or any representatives of them in relation to the Merger and any other consequence of the transactions contemplated by this Agreement and the Merger Agreement whether required pursuant to any collective
bargaining agreement applicable to NetScout employees, the Transfer Regulations or other applicable Law. 
 Section 2.12 Certain
Requirements. Notwithstanding anything in this Agreement to the contrary, if the terms of a Collective Bargaining Agreement or applicable Law require that any assets or Liabilities be retained by the Danaher Group or transferred to or assumed by
the Newco Group or NetScout in a manner that is different from that set forth in this Agreement, such retention, transfer or assumption shall be made in accordance with the terms of such Collective Bargaining Agreement or applicable Law and shall
not be made as otherwise set forth in this Agreement. 
 Section 2.13 Sharing of Information. On and after the date hereof and
in each case to the extent permitted by applicable Law, Danaher shall, and shall cause each member of the Danaher Group to use reasonable efforts to (i) share any materials and documents with Newco and NetScout that are reasonably determined to
be necessary to permit Newco and NetScout to effectuate the provisions of this Agreement and (ii) make available any Newco Employees to Newco and NetScout for purposes of making any communications to such Newco Employees relating to the
provisions of this Agreement; provided that Danaher shall be permitted to have a representative present at any meeting between Newco or NetScout and a Newco Employee that occurs prior to the Effective Time. 

ARTICLE III 
 DEFINED
BENEFIT PLANS 
 Section 3.1 U.S. Retirement Plan Participation. Danaher shall retain all assets and Liabilities
relating to the Danaher U.S. Retirement Plan, including Liabilities in respect of 

  
 17 

 
pension benefits accrued thereunder by Newco Employees through the Effective Time. No assets or Liabilities of a Danaher U.S. Retirement Plan shall be transferred to a retirement plan maintained
by Newco, NetScout or any of their respective Affiliates following the Effective Time. No Newco Employee will accrue benefits under the Danaher U.S. Retirement Plan after the Effective Time. 

Section 3.2 Non-U.S. Retirement Plan Participation. 

(a) Subject to any Collective Bargaining Agreement and applicable Law, effective as of the Effective Time, the participation of each Newco
Employee who is a participant in a Danaher Non-U.S. Retirement Plan shall automatically cease and no Newco Employee shall thereafter accrue any benefits under any such Danaher Non-U.S. Retirement Plan. 

(b) To the extent required by applicable Law, NetScout shall, or shall cause a member of the NetScout Group to, use its reasonable efforts to
establish or maintain one or more defined benefit retirement plans (such defined benefit plan or plans, the “NetScout Non-U.S. Retirement Plans”) in which each Newco Employee who participated in a Danaher Non-U.S. Retirement Plan
immediately prior to the Separation Time will be eligible to participate as soon as practicable following the Effective Time, with terms substantially similar to the terms of the applicable Danaher Non-U.S. Retirement Plan as in effect immediately
prior to the Separation Time. To the extent required by Law, Danaher shall cause the Danaher Non-U.S. Retirement Plans to transfer (and NetScout shall cause the NetScout Non-U.S. Retirement Plans to accept a transfer of) Liabilities in respect of
the obligations to or otherwise in respect of Newco Employees under the Danaher Non-U.S. Retirement Plans and Danaher shall cause the Danaher Non-U.S. Retirement Plans to transfer (and NetScout shall cause the NetScout Non-U.S. Retirement Plans to
accept a transfer of) assets in an amount equal to the Liabilities so transferred (such transfers, the “Pension Transfers”). In the event that a Danaher Non-U.S. Retirement Plan is unable to transfer assets in an amount equal to the
Liabilities transferred in connection with the Pension Transfers, Danaher shall transfer to NetScout an amount of cash equal to the difference between the Liabilities transferred under the Pension Transfers and the assets transferred under the
Pension Transfers. The Pension Transfers shall be effected in accordance with applicable Law and local custom and practice; provided that if the mechanism for transfer of such assets and Liabilities is not mandated by applicable Law, then the assets
and Liabilities relating to Newco Employees in respect of any applicable Danaher Non-U.S. Retirement Plan in such jurisdiction will be transferred on a projected benefit obligation basis as determined in accordance with U.S. Generally Accepted
Accounting Principles and based on the applicable discount rates used in the most recent financial statements relating to the applicable Danaher Non-U.S. Retirement Plan (updated as of the Effective Time). Danaher shall use commercially reasonable
efforts to provide that all assets transferred in accordance with this subsection (b) shall be transferred in the form of cash, insurance contracts or marketable securities unless otherwise required by applicable Law. NetScout shall be
responsible for any and all Liabilities (including Liability for funding) and other obligations with respect to the NetScout Non-U.S. Retirement Plans. 

(c) To the extent required by applicable Law, and subject to any Collective Bargaining Agreement, effective as of the Effective Time, NetScout
or NetScout Group member 

  
 18 

 
shall assume sponsorship of, and shall retain or assume all assets and benefit Liabilities relating to, any Danaher Non-U.S. Retirement Plan in which all participants immediately prior to the
Effective Time are Newco Employees or Newco Benefit Arrangement that is a defined benefit retirement plan. If the assets held by any Danaher Non-U.S. Retirement Plan or Newco Benefit Arrangement assumed or retained under this Section 3.2(c) are
less than the Liabilities accrued under such Danaher Non-U.S. Retirement Plan or Newco Benefit Arrangement (determined on a projected benefit obligation basis), Danaher shall transfer to NetScout an amount of cash equal to the difference between the
assets held by such Danaher Non-U.S. Retirement Plan or Newco Benefit Arrangement and such Liabilities. Danaher shall indemnify, defend and hold harmless the NetScout Indemnitees and the Newco Indemnitees for any Losses or Liabilities (other than
Liabilities for benefit payments) related to or arising under any Danaher Non-U.S. Retirement Plan or Newco Benefit Arrangement assumed or retained under this Section 3.2(c) which are related to any act or omission or operation of such Danaher
Non-U.S. Retirement Plan or Newco Benefit Arrangement occurring prior to the Effective Time. 
 (d) Except as specifically provided in this
Section 3.2, no member of the NetScout Group shall have any Liability with respect to any Danaher Non-U.S. Retirement Plan or other Danaher Benefit Arrangement that is a defined benefit retirement plan (including for the avoidance of
doubt any “Section 75” debt arising from any Danaher Benefit Arrangement that is a United Kingdom retirement plan). 
 ARTICLE
IV 
 DEFINED CONTRIBUTION PLANS 

Section 4.1 U.S. Savings Plan Participation. 

(a) Effective as of the Effective Time, (i) the participation of each Newco Employee who is a participant in a Danaher U.S. Savings Plan
shall automatically cease and (ii) Danaher shall cause each such Newco Employee to become fully vested in such Newco Employee’s account balances under such Danaher U.S. Savings Plan. 

(b) Effective no later than the Effective Time, NetScout shall, or shall cause a member of the NetScout Group to, use its reasonable effort to
establish or maintain one or more defined contribution savings plans and related trusts that satisfy the requirements of Sections 401(a) and 401(k) of the Code (such defined contribution savings plan or plans, the “NetScout U.S. Savings
Plans”) in which each Newco Employee who participated in a Danaher U.S. Savings Plan immediately prior to the Separation Time will be eligible to participate as of the Effective Time, with terms that are fully equivalent to those provided
by NetScout to similarly situated employees of NetScout as of the Effective Time. 
 (c) NetScout shall use reasonable efforts, or shall
cause a member of the NetScout Group to use reasonable efforts, to take all necessary actions to cause the applicable NetScout U.S. Savings Plan in which a Newco Employee is eligible to participate to permit each such Newco Employee to make rollover
contributions of “eligible rollover distributions” (within the meaning of Section 401(a)(31) of the Code and inclusive of any loans), in the form of cash, notes or shares of Danaher Common Stock, as applicable, in an amount equal to
the full account balance distributed to such Newco Employee from the Danaher U.S. Savings Plan to the applicable NetScout U.S. Savings Plan. 

  
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 (d) NetScout shall cause the NetScout U.S. Savings Plan to provide that all shares of Danaher
Common Stock transferred into the NetScout U.S. Savings Plan in connection with Section 4.1(c) shall, to the extent still held under the NetScout U.S. Savings Plan, be maintained under the NetScout U.S. Savings Plan in compliance with all
requirements of ERISA and applicable Laws; provided that NetScout shall not be required to permit the investment of contributions made after the Closing Date into Danaher Common Stock, but will be required to permit Newco Employees who participate
in the NetScout U.S. Savings Plan to continue to hold shares of Danaher Common Stock transferred into the NetScout U.S. Savings Plan in connection with Section 4.1(c) through a self-directed brokerage account under the NetScout U.S. Savings
Plan. 
 Section 4.2 Non-U.S. Savings Plan Participation. 

(a) Subject to any Collective Bargaining Agreement and applicable Law, effective as of the Effective Time, the participation of each Newco
Employee who is a participant in a Danaher Non-U.S. Savings Plan shall automatically cease and no Newco Employee shall thereafter accrue any benefits under any such Danaher Non-U.S. Savings Plan. 

(b) To the extent required by applicable Law, NetScout shall, or shall cause a member of the NetScout Group to, establish or maintain one or
more plans in which each Newco Employee who participated in a Danaher Non-U.S. Savings Plan immediately prior to the Separation Time will be eligible to participate as of the Effective Time, with terms (excluding employer contributions) no less
favorable than the terms of the applicable Danaher Non-U.S. Savings Plan as in effect immediately prior to the Separation Time (such plan or plans, the “NetScout Non-U.S. Savings Plans”). To the extent required by Law, Danaher shall
cause the Danaher Non-U.S. Savings Plans to transfer (and NetScout shall cause the NetScout Non-U.S. Savings Plans to accept a transfer of) Liabilities in respect of the obligations to or otherwise in respect of Newco Employees under the Danaher
Non-U.S. Savings Plans and Danaher shall cause the Danaher Non-U.S. Savings Plans to transfer (and NetScout shall cause the NetScout Non-U.S. Savings Plans to accept a transfer of) assets in an amount equal to the Liabilities so transferred (such
transfers, the “Savings Transfers”). In the event that a Danaher Non-U.S. Savings Plan is unable to transfer assets in an amount equal to the Liabilities transferred in connection with the Savings Transfers, Danaher shall transfer
to NetScout an amount of cash equal to the difference between the Liabilities transferred under the Savings Transfers and the assets transferred under the Savings Transfers. Except as otherwise agreed by the Parties after the date hereof, such
transfer shall be effected in accordance with applicable Law and local custom and practice. NetScout shall be responsible for any and all Liabilities (including Liability for funding) and other obligations with respect to the NetScout Non-U.S.
Savings Plans. 
 (c) To the extent required by applicable Law, and subject to any Collective Bargaining Agreement, effective as of the
Effective Time, NetScout shall assume sponsorship of, and shall retain or assume all assets and benefit Liabilities relating to any Danaher Non-U.S. Savings Plan in which all participants immediately prior to the Effective Time are Newco Employees
or Newco Benefit Arrangement that is a defined contribution plan. Danaher shall 

  
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indemnify, defend and hold harmless the NetScout Indemnitees and the Newco Indemnitees for any Losses or Liabilities (other than Liabilities for benefit payments) related to or arising under any
Danaher Non-U.S. Savings Plan or Newco Benefit Arrangement assumed or retained under this Section 4.2(c) which are related to any act or omission or operation of such Danaher Non-U.S. Savings Plan or Newco Benefit Arrangement occurring
prior to the Effective Time. 
 (d) Except as specifically provided in this Section 4.2, no member of the NetScout Group shall
have any Liability with respect to any Danaher Non-U.S. Savings Plan or other Danaher Benefit Arrangement that is a retirement plan. 

ARTICLE V 

HEALTH AND WELFARE PLANS 

Section 5.1 Health and Welfare Plan Participation. Subject and in addition to the Newco Group’s obligations in relation to
employees who transfer to Newco Group at the Separation Time pursuant to the Transfer Regulations, effective no later than the Effective Time, NetScout shall or shall cause a member of the NetScout Group to use reasonable efforts to establish or
maintain health and welfare plans (which term shall be limited to medical, dental, vision, disability and life insurance coverage) for the benefit of each Newco Employee with terms that are fully equivalent to those provided by NetScout to similarly
situated employees of NetScout in the applicable jurisdiction as of the Effective Time (which for U.S. Newco Employees shall be determined by reference to the benefits as described in the NetScout 2014 Summary of Benefits as may be amended for all
NetScout U.S. employees). 
 Section 5.2 Certain Liabilities. 

(a) With respect to employee welfare and fringe benefits, (i) Danaher shall fully perform, pay and discharge, under the Danaher Welfare
Plans, all claims of Newco Employees that are incurred but not paid prior to the Effective Time and (ii) NetScout shall fully perform, pay and discharge, under the NetScout Welfare Plans, from and after the Effective Time, all claims of Newco
Employees that are incurred from and after the Effective Time under the applicable Newco Benefit Arrangement. 
 (b) For purposes of this
Section 5.2, a claim or Liability is deemed to be incurred (i) with respect to medical, dental, vision and/or prescription drug benefits, upon the rendering of health services giving rise to such claim or Liability, (ii) with
respect to life insurance, accidental death and dismemberment and business travel accident insurance, upon the occurrence of the event giving rise to such claim or Liability and (iii) with respect to disability benefits, upon the date of an
individual’s disability, as determined by the disability benefit insurance carrier or claim administrator, giving rise to such claim or Liability. 

Section 5.3 Time-Off Benefits. Unless otherwise required in a Collective Bargaining Agreement or by applicable Laws,
(i) Newco shall credit each Newco Employee as of the Separation Time with the amount of accrued but unused vacation time, paid time off and other time-off benefits as such Newco Employee had with Danaher Group as of immediately before the
Separation Time, (ii) NetScout shall cause each Newco Employee to be eligible to use 

  
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on or before December 31 of the year following the Effective Time any accrued but unused vacation time, paid time off and other time-off benefits as such Newco Employee had with Danaher as
of immediately before the Effective Time to the extent in excess of the amount that would have been available to the Newco Employee had the Newco Employee’s service with Newco been treated as service with NetScout, (iii) NetScout may cause
each Newco Employee to forfeit any excess amount not used in accordance with the foregoing clause (ii), and (iv) as of the Effective Time, each Newco Employee shall be subject to NetScout’s vacation policy (pro-rated as of the Effective
Time) for the year in which the Closing occurs; provided, however, that NetScout shall provide Newco Employees with credit for employment service with Danaher for purposes of determining each Newco Employee’s eligibility for and future accruals
of vacation days under the NetScout vacation policy. Time-off benefits for Newco Employees will be fully equivalent to those provided by NetScout to similarly situated employees of NetScout in the applicable jurisdiction as of the date hereof (which
for U.S. Newco Employees shall be determined by reference to the benefits as described in the NetScout 2014 Summary of Benefits as may be amended for all NetScout U.S. employees). 

ARTICLE VI 

EXECUTIVE BENEFIT PLANS 

Section 6.1 Non-Qualified Deferred Compensation Plans. Effective as of the Effective Time, the active participation of each Newco
Employee who is a Participant in a Danaher NQDC Plan shall cease. NetScout shall have no obligation to establish and maintain a NQDC Plan for the benefit of Newco Employees and Danaher shall retain all assets and Liabilities in respect of the
Danaher NQDC Plan. 
 ARTICLE VII 

TREATMENT OF DANAHER EQUITY AWARDS 

Section 7.1 Retained Danaher Equity Awards. 

(a) Treatment of Vested Danaher Options. Each Danaher Option that is vested and exercisable as of immediately before the Effective Time
shall remain exercisable for a period of ninety (90) days commencing on the day immediately following the Closing Date, or, in the case of a Danaher Option held by a Delayed Transfer Newco Employee, for ninety (90) days after the date such
individual becomes a Newco Employee, provided that in no event shall any such Danaher Option remain exercisable after the expiration of its term. Any such Danaher Option that remains unexercised as of the end of such ninety (90) day period
shall terminate and be forfeited without the payment of any consideration to the holder thereof. 
 (b) Treatment of Unvested Danaher
Options Scheduled to Vest Prior to August 4, 2015. If the Closing Date occurs before August 4, 2015, each Danaher Option that is scheduled to vest in accordance with its terms on or after the Closing Date but on or before
August 4, 2015, shall continue to vest in accordance with its terms and shall remain exercisable for a period of ninety (90) days commencing on the day immediately following the vesting date of such Danaher Option, or, in the case of a
Danaher Option held by a Delayed Transfer Newco 

  
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Employee, ninety (90) days after such individual becomes a Newco Employee, provided that in no event shall any such Danaher Option remain exercisable after the expiration of its term. Any
such Danaher Option that remains unexercised as of the end of such ninety (90) day period shall terminate and be forfeited without the payment of any consideration to the holder thereof. 

(c) Treatment of Unvested Danaher Restricted Stock Units Scheduled to Vest Prior to August 4, 2015. If the Closing Date occurs
before August 4, 2015, each Danaher Restricted Stock Unit that is scheduled to vest in accordance with its terms on or after the Closing Date but on or before August 4, 2015, shall continue to vest and shall be settled in accordance with
its terms. 
 (d) Tax and Regulatory Compliance for Retained Danaher Equity Awards. To the extent any member of the Newco Group is
subject to Tax withholding, reporting, remitting or payment obligations or any regulatory filing obligation in connection with the Retained Danaher Equity Awards, the Parties agree to cooperate to ensure that such obligations are met and that any
Employment Taxes payable by any member of the Newco Group in connection with such Retained Danaher Equity Award shall be paid by Danaher. 

Section 7.2 Cancelled Danaher Equity Awards. Each (i) Danaher Option that is unvested as of immediately before the Effective
Time, or, in the case of a Danaher Option held by a Delayed Transfer Newco Employee that is unvested as of the date such individual becomes a Newco Employee, (other than with respect to any such Danaher Option that is subject to Section 7.1(b)
hereof) (together, the “Cancelled Danaher Options”) and (ii) Danaher Restricted Stock Unit that is unvested as of immediately before the Effective Time, or in the case of a Danaher Restricted Stock Unit held by a Delayed
Transfer Newco Employee that is unvested as of the date such individual becomes a Newco Employee (other than with respect to any such Danaher Option that is subject to Section 7.1(c) hereof) (together, the “Cancelled Danaher Restricted
Stock Units” and together with the Cancelled Danaher Options, the “Cancelled Danaher Equity Awards”) shall, effective as of immediately before the Effective Time or as of the date a Delayed Transfer Newco Employee becomes a
Newco Employee, as applicable, be cancelled by Danaher without the payment by Danaher of any consideration to the holder thereof. 

Section 7.3 NetScout Retention Awards. NetScout will, as soon as practicable following the Closing Date, and in any event within
thirty (30) days after the Closing Date, or, in the case of a Delayed Transfer Newco Employee who becomes a Newco Employee after the Closing Date, within thirty (30) days after such individual becomes a Newco Employee, provide the
following to each Newco Employee who is a holder of a Cancelled Danaher Equity Award: 
 (a) A cash retention award with a value equal to
one-half of such Newco Employee’s Cancelled Danaher Equity Award Value, payable on the later of (i) the first anniversary of the Closing Date and (ii) August 4, 2016, in each case subject to the Newco Employee’s continued
employment with Newco, NetScout or a member of the NetScout Group through the applicable date and payable no later than ten (10) Business Days thereafter. Danaher shall, within twenty (20) Business Days following the date on which NetScout
provides it with written evidence of the making of such cash retention payments, pay to NetScout or the applicable member of the NetScout Group an amount equal to (i) the sum of such cash retention

  
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payments and any Employment Taxes payable by NetScout or the applicable member of the NetScout Group in connection therewith, less (ii) the value of any item of loss, deduction or credit or
any other item which decreases Taxes paid or payable or increases Tax basis realizable by NetScout and any member of the NetScout Group as a result of the payment of the such cash retention payments and any related Employment Taxes (the “Tax
Benefit Amount”). The amount of such Employment Taxes and the Tax Benefit Amount shall be reasonably determined in good faith by NetScout in consultation with Danaher; and 

(b) A number of NetScout Restricted Stock Units (rounded up to the nearest whole share) equal to the quotient of (i) no less than
one-half of such Newco Employee’s Cancelled Danaher Equity Award Value and (ii) the NetScout Closing Trading Price; provided, however, that notwithstanding the above, the maximum aggregate value of the NetScout Restricted Stock Units that
will be awarded under this Section 7.3(b) will not exceed $15 million (“RSU Cap”), where the “value” of a NetScout Restricted Stock Unit for this purpose is equal to the NetScout Closing Trading Price. The NetScout
Restricted Stock Units granted in accordance with this Section 7.3(b) shall be subject to the terms and conditions of the applicable stock plan maintained by NetScout pursuant to which they are granted and an award agreement provided by
NetScout thereunder. If the RSU Cap applies, the reduction to the number of NetScout Restricted Stock Units awarded with respect to each Cancelled Danaher Equity Award will occur on a pro rata basis. 

Section 7.4 Necessary Actions. The Parties shall, as soon as practicable after the date hereof and in no event later than the
Business Day prior to the Closing Date, take all actions as may be necessary to implement the provisions of this Section 7, including adopting any necessary resolutions and making any required plan amendments and award modifications and
obtaining any required consents from Newco Employees. 
 Section 7.5 Adjustments. Each Danaher Option and Danaher Restricted
Stock Unit shall at all times remain subject to adjustment in accordance with the terms and conditions of the applicable Danaher Stock Plan and award agreement. 

Section 7.6 SEC Registration. All shares of common stock of NetScout to be issued in respect of the NetScout Restricted Stock
Units shall be subject to an effective registration statement on Form S-8 (or another appropriate form) maintained by NetScout. NetScout shall use reasonable best efforts to keep such registration statement effective (and maintain the current status
of the prospectus required thereby) for so long as any such NetScout Restricted Stock Units remain outstanding. 
 Section 7.7
Compliance. In the event that the treatment specified in this Section 7 hereof does not comply with applicable Law or results in adverse Tax consequences to the Parties or any Newco Employees (or if it would be onerous, as determined by
NetScout, to comply with applicable Law in order to provide such treatment), the Parties agree to negotiate in good faith alternative treatment that complies with applicable Law and does not result in adverse Tax consequences to the Parties or any
Newco Employees. 

  
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 ARTICLE VIII 

ADDITIONAL COMPENSATION MATTERS 

Section 8.1 Workers’ Compensation Liabilities. Effective as of the Effective Time, NetScout shall assume all Liabilities
(other than any Liabilities related to medical or other similar services performed, or compensation in respect of lost work for periods, prior to the Effective Time) for Newco Employees related to any and all workers’ compensation claims and
coverage, whether arising under any law of any state, territory, or possession of the U.S. or the District of Columbia, and arising at or after the Effective Time, and NetScout shall be fully responsible for the administration of all such claims. If
NetScout is unable to assume any such Liability or the administration of any such claim because of the operation of applicable state law or for any other reason, Danaher shall retain such Liabilities and NetScout shall reimburse and otherwise fully
indemnify Danaher for all such Liabilities, including the costs of administering the plans, programs or arrangements under which any such Liabilities have accrued or otherwise arisen. Danaher shall retain all Liabilities for workers’
compensation claims to the extent arising prior to the Effective Time. 
 Section 8.2 Code Sections 162(m)/409A. Notwithstanding
anything in this Agreement to the contrary, the Parties agree to negotiate in good faith regarding the need for any treatment different from that otherwise provided herein with respect to the payment of compensation to ensure that (i) a federal
income Tax deduction for the payment of such compensation is not limited by reason of Section 162(m) of the Code, and (ii) the treatment of such compensation does not cause the imposition of a Tax under Section 409A of the Code. In no
event, however, will any Party be liable to another in respect of any Taxes imposed under, or any other costs or Liabilities relating to, Section 409A of the Code or the denial of any Tax deduction by reason of Section 162(m) of the Code.

 Section 8.3 Certain Payroll and Bonus Matters. 

(a) Post-Distribution Payroll for Pre-Distribution Service. In the case of each Newco Employee, the employer of such individual as of
immediately before the Closing Date shall be responsible for paying (and the W-2 and other payroll reporting obligations for) the payroll amount due to such individual for the payroll period (or portion thereof) ending on the Closing Date, unless
otherwise agreed to by Danaher and NetScout. 
 (b) Annual Bonus Programs. As soon as practicable following the Effective Time,
Danaher shall for each Newco Employee either (i) pay to NetScout or Newco who shall apply for the benefit of the relevant Newco Employee; or (ii) reimburse NetScout or Newco, in either case an amount equal to (A) for the fiscal year
ending immediately prior to the Effective Time, any accrued but unpaid bonus for an Newco Employee and (B) for the fiscal year in which the Effective Time occurs, the product of (1) the annual cash incentive bonus (if any) the Newco
Employee could have earned for the year during which the Effective Time occurs based on projected actual performance for the full year as determined by Danaher in good faith as of the Effective Time and (2) a fraction, the numerator of which is
the number of days elapsed in the applicable bonus period through the Effective Time and the denominator of which is 365. 

  
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 Section 8.4 Danaher Retention Plan. Danaher may, in its sole discretion, implement
and adopt a cash retention plan for certain Newco Employees as set forth on Annex A hereto. 
 Section 8.5 Employee Stock Purchase
Plan. Each Newco Employee (other than any Newco Employees outside of the United States or who are otherwise ineligible to participate under the applicable terms) will be immediately eligible to participate in the NetScout Systems, Inc. Amended
and Restated 2011 Employee Stock Purchase Plan or a successor plan (the “ESPP”) on the same basis as similarly situated NetScout employees as of the first offering date thereunder on or after the Closing Date. 

ARTICLE IX 

INDEMNIFICATION 

Section 9.1 Indemnification by the Parties. Except as otherwise specifically set forth in any provision of this Agreement
(including Section 2.1(c)), (i) Danaher shall indemnify, defend and hold harmless the NetScout Indemnitees and Newco Indemnitees from and against, and shall reimburse such Indemnitees with respect to, any and all Losses that result
from, relate to or arise, whether prior to or following the Distribution, any breach by any member of the Danaher Group of any provision of this Agreement and (ii) NetScout and Newco shall, on a joint and several basis, indemnify, defend and
hold harmless the Danaher Indemnitees from and against, and shall reimburse such Danaher Indemnitees with respect to, any and all Losses that proximately result from, relate to or arise, whether prior to, at or following the Separation Time, any
breach by any member of the NetScout Group or Newco Group of any provision of this Agreement. 
 Section 9.2 Procedures for
Indemnification. 
 (a) An Indemnitee shall give the Indemnifying Party notice of any matter that an Indemnitee has determined has given
or would reasonably be expected to give rise to a right of indemnification under this Agreement (other than a Third-Party Claim which shall be governed by Section 9.2(b)), within twenty (20) Business Days of such determination,
stating the amount of the Loss claimed, if known, and method of computation thereof, and containing a reference to the provisions of this Agreement in respect of which such right of indemnification is claimed by such Indemnitee or arises;
provided, that the failure to provide such notice shall not release the Indemnifying Party from any of its obligations except and solely to the extent the Indemnifying Party shall have been materially prejudiced as a result of such failure.

 (b) If a claim or demand is made against an Indemnitee by any Person who is not a party to this Agreement or an Affiliate of a Party (a
“Third-Party Claim”) as to which such Indemnitee is or reasonably expects to be entitled to indemnification pursuant to this Agreement, such Indemnitee shall notify the Party that is or may be required pursuant to this Article
IX to make such indemnification (the “Indemnifying Party”) in writing, and in reasonable detail, of the Third-Party Claim promptly (and in any event within thirty (30) calendar days) after receipt by such Indemnitee of
written notice of the Third-Party Claim; provided, that the failure to provide notice of any such Third-Party Claim pursuant to this sentence shall not release the Indemnifying 

  
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Party from any of its obligations except and solely to the extent the Indemnifying Party shall have been materially prejudiced as a result of such failure (except that the Indemnifying Party or
Parties shall not be liable for any expenses incurred by the Indemnitee in defending such Third-Party Claim during the period in which the Indemnitee failed to give such notice). Thereafter, the Indemnitee shall deliver to the Indemnifying Party,
promptly (and in any event within ten (10) Business Days) after the Indemnitee’s receipt thereof, copies of all notices and documents (including court papers) received by the Indemnitee relating to the Third-Party Claim. 

(c) An Indemnifying Party shall be entitled (but shall not be required) to assume, control the defense of, and settle any Third-Party Claim,
at such Indemnifying Party’s own cost and expense and by such Indemnifying Party’s own counsel, which counsel must be reasonably acceptable to the applicable Indemnitees, if it gives written notice of its intention to do so and agreement
that the Indemnitee is entitled to indemnification under this Article IX to the applicable Indemnitees within thirty (30) calendar days of the receipt of notice from such Indemnitees of the Third-Party Claim. After such notice from an
Indemnifying Party to an Indemnitee of its election to assume the defense of a Third-Party Claim, such Indemnitee shall have the right to employ separate counsel and to participate in (but not control) the defense, compromise or settlement thereof,
at its own expense and, in any event, shall reasonably cooperate with the Indemnifying Party in such defense and make available to the Indemnifying Party all witnesses, pertinent and material Information and materials in such Indemnitee’s
possession or under such Indemnitee’s control relating thereto as are reasonably required by the Indemnifying Party; provided, that such access shall not require the Indemnitee to disclose any information the disclosure of which would,
in the reasonable judgment of the Indemnitee, result in the loss of any existing attorney-client privilege with respect to such information or violate any applicable Law. 

(d) Notwithstanding anything to the contrary in this Section 9.2, in the event that (i) an Indemnifying Party elects not to
assume responsibility for defending a Third-Party Claim, (ii) there exists a conflict of interest or potential conflict of interest between the Indemnifying Party and the applicable Indemnitee(s), (iii) any Third-Party Claim seeks an
order, injunction or other equitable relief or relief for other than money damages against the Indemnitee, (iv) the Indemnifying Party shall not have employed counsel to represent the Indemnitee within thirty (30) calendar days after
notice from the Indemnitee of such Third-Party Claim or (v) the party making such Third-Party Claim is a Governmental Authority with regulatory authority over the Indemnitee or any of its material assets, such Indemnitee(s) shall be entitled to
assume the defense of such Third-Party Claim, at the Indemnifying Party’s expense, with counsel of such Indemnitee’s choosing. If the Indemnitee is conducting the defense against any such Third-Party Claim, the Indemnifying Party shall
reasonably cooperate with the Indemnitee in such defense and make available to the Indemnitee all witnesses, pertinent and material Information and materials in such Indemnifying Party’s possession or under such Indemnifying Party’s
control relating thereto as are reasonably required by the Indemnitee pursuant to a joint defense agreement to be entered into by Indemnitee and the Indemnifying Party; provided, that such access shall not require the Indemnifying Party to
disclose any information the disclosure of which would, in the reasonable judgment of the Indemnifying Party, result in the loss of any existing attorney-client privilege with respect to such information or violate any applicable Law. 

  
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 (e) No Indemnitee may settle or compromise any Third-Party Claim without the consent of the
Indemnifying Party, which consent shall not be unreasonably withheld, conditioned or delayed. If an Indemnifying Party has failed to assume the defense of the Third-Party Claim, it shall not be a defense to any obligation to pay any amount in
respect of such Third-Party Claim that the Indemnifying Party was not consulted in the defense thereof, that such Indemnifying Party’s views or opinions as to the conduct of such defense were not accepted or adopted, that such Indemnifying
Party does not approve of the quality or manner of the defense thereof or that such Third-Party Claim was incurred by reason of a settlement rather than by a judgment or other determination of liability. 

(f) In the case of a Third-Party Claim, no Indemnifying Party shall consent to entry of any judgment or enter into any settlement of the
Third-Party Claim without the consent (not to be unreasonably withheld, conditioned or delayed) of the Indemnitee if the effect thereof is to permit any injunction, declaratory judgment, other order or other non-monetary relief to be entered,
directly or indirectly, against any Indemnitee, does not release the Indemnitee from all liabilities and obligations with respect to such Third-Party Claim or includes an admission of guilt or liability on behalf of the Indemnitee. 

(g) Except as otherwise provided in Section 11.3, the indemnification provisions of this Article IX shall be the sole and
exclusive remedy of an Indemnitee for any monetary or compensatory damages or Losses resulting from any breach of this Agreement, and each Indemnitee expressly waives and relinquishes any and all rights, claims or remedies such Person may have with
respect to the foregoing other than under this Article IX against any Indemnifying Party. 
 Section 9.3 Indemnification
Obligations Net of Proceeds Received from Third Parties. 
 (a) Any Liability subject to indemnification or contribution pursuant to
this Article IX will be net of any proceeds received by the Indemnitee from any third party (net of any deductible or retention amount or any other third party costs or expenses incurred by the Indemnifying Party in obtaining such recovery,
including any increased insurance premiums) for indemnification for such Liability that actually reduce the amount of the Liability (“Third-Party Proceeds”). Accordingly, the amount which any Indemnifying Party is required to pay
pursuant to this Article IX to any Indemnitee pursuant to this Article IX will be reduced by Third-Party Proceeds theretofore actually recovered by or on behalf of the Indemnitee in respect of the related Liability. If an Indemnitee
receives a payment required by this Agreement from an Indemnifying Party in respect of any Liability (an “Indemnity Payment”) and subsequently receives Third-Party Proceeds, then the Indemnitee will pay to the Indemnifying Party an
amount equal to the excess of the Indemnity Payment received over the amount of the Indemnity Payment that would have been due if the Third-Party Proceeds had been received, realized or recovered before the Indemnity Payment was made. 

(b) The Indemnitee shall use commercially reasonable efforts to seek to collect or recover any Third-Party Proceeds to which the Indemnitee is
entitled in connection with any Liability for which the Indemnitee seeks contribution or indemnification pursuant to this Article IX; provided, that the Indemnitee’s inability to collect or recover any such Third-Party Proceeds
shall not limit the Indemnifying Party’s obligations hereunder. 

  
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 Section 9.4 Certain Actions; Substitution; Subrogation. 

(a) Certain Actions. Notwithstanding anything to the contrary set forth in Section 9.2, Danaher may elect to have exclusive
authority and control over the investigation, prosecution, defense and appeal of any and all Actions pending at the Separation Time which otherwise would be subject to this Article IX and as to which a member of the Danaher Group (other than
Newco and the Newco Subs) is also named as a target or defendant thereunder; provided, however, that (i) Danaher and Newco shall investigate, prosecute, defend and/or appeal such Actions in good faith, (ii) Danaher shall
reasonably consult with Newco on a regular basis with respect to strategy and developments with respect to any such Action, (iii) Newco shall have the right to participate in (but not control) and employ separate counsel in connection with the
defense, compromise or settlement of such Action at its own cost and expense and (iv) Danaher must obtain the written consent of Newco, such consent not to be unreasonably withheld, conditioned or delayed, to settle or compromise or consent to
the entry of judgment with respect to such Action if such settlement, consent or judgment would require Newco (or any of its Affiliates) to admit any guilt or fault or incur any Liability, does not release such Party (or any of its Affiliates)
completely in connection with such Action, or imposes injunctive or other equitable relief against Newco (or any of its Affiliates). After any such compromise, settlement, consent to entry of judgment or entry of judgment, Danaher and Newco shall
agree upon a reasonable allocation to Newco of, and Newco shall be responsible for or receive, as the case may be, Newco’s proportionate share of any such compromise, settlement, consent or judgment attributable to Newco, including its
proportionate share of the reasonable costs and expenses associated with defending the same. 
 (b) Substitution. In the event of an
Action that involves solely matters that are indemnifiable and in which the Indemnifying Party is not a named defendant, if either the Indemnitee or the Indemnifying Party so requests, the Parties shall use commercially reasonable efforts to
substitute the Indemnifying Party for the named but not liable defendant to be removed from such Action and such defendants shall not be required to make any payments or contribution in connection therewith (regardless if such removal is successful
or not). If such substitution or addition cannot be achieved for any reason or is not requested, the rights and obligations of the Parties regarding indemnification and the management of the defense of claims as set forth in this Article IX
shall not be affected. 
 (c) Subrogation. In the event of payment by or on behalf of any Indemnifying Party to or on behalf of any
Indemnitee in connection with any Third-Party Claim, such Indemnifying Party shall be subrogated to and shall stand in the place of such Indemnitee, in whole or in part based upon and in proportion to the amount of the Indemnitee’s Liability
that the Indemnifying Party has paid, as to any events or circumstances in respect of which such Indemnitee may have any right, defense or claim relating to such Third-Party Claim against any claimant or plaintiff asserting such Third-Party Claim or
against any other Person. Such Indemnitee shall cooperate with such Indemnifying Party in a reasonable manner, and at the cost and expense of such Indemnifying Party, in prosecuting any subrogated right, defense or claim. 

Section 9.5 Payments. Indemnification required by this Article IX shall be made by periodic payments of the amount thereof
during the course of the investigation or defense, as and when bills are received or a Loss or Liability incurred. 

  
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 ARTICLE X 

GENERAL AND ADMINISTRATIVE 

Section 10.1 Sharing of Information. To the extent permitted by applicable Law, Danaher, Newco and NetScout shall provide to each
other and their respective agents and vendors all Information (other than attorney-client privileged Information or attorney work product) as the other may reasonably request to enable the requesting Party to defend or prosecute claims, administer
efficiently and accurately each of its Benefit Arrangements (including in connection with audits or other proceedings maintained by any Governmental Authority), to timely and accurately comply with and report under Section 14 of the Securities
Exchange Act of 1934, as amended and the Code, to determine the scope of, as well as fulfill, its obligations under this Agreement, and otherwise to comply with provisions of applicable Law. Danaher shall comply with all applicable data privacy Laws
and requirements when collecting, processing, sharing and/or transferring information relating to an individual or which on its own or with other information may identify or be used to identify an individual. Such Information shall, to the extent
reasonably practicable, be provided in the format and at the times and places requested, but in no event shall the Party providing such Information be obligated to incur any out-of-pocket expenses not reimbursed by the Party making such request or
make such Information available outside of its normal business hours and premises. Any Information shared or exchanged pursuant to this Agreement shall be subject to the confidentiality requirements set forth in Article VII of the Distribution
Agreement; provided, that, notwithstanding anything in such Article VII and without otherwise limiting the provisions of such Article VII, each of the Parties shall comply with any requirement of applicable Law in regard to the
confidentiality of the Information (whether relating to employee records or otherwise) that is shared with another Party in accordance with this Section 10.1. The Parties also hereby agree to enter into any business associate agreements
that may be required for the sharing of any Information pursuant to this Agreement to comply with the requirements of HIPAA. The Parties shall use their best efforts to secure Consents from employees, former employees and their respective dependents
to the extent required by Law or otherwise to permit the Parties to share Information as contemplated in this Section 10.1. 

Section 10.2 Reasonable Efforts/Cooperation. (i) Each of the Parties shall use reasonable best efforts (subject to, and in
accordance with applicable Law) to take promptly, or cause to be taken promptly, all actions, and to do promptly, or cause to be done promptly, and to assist and cooperate with the other Parties in doing, all things reasonably necessary, proper or
advisable to consummate and make effective the transactions contemplated by and carry out the intent and purposes of this Agreement, including adopting plans or plan amendments and using reasonable best efforts to obtain satisfaction of the
conditions precedent to each Party’s obligations hereunder within its reasonable control and to perform all covenants and agreements herein applicable to such Party and (ii) none of the Parties will, without the prior written consent of
any other applicable Party, take any action which would reasonably be expected to prevent or materially impede, interfere with or delay the transactions contemplated by this Agreement. 

  
 30 

 
Without limiting the generality of the foregoing, where the cooperation of third parties, such as insurers or trustees, would be necessary in order for a Party to completely fulfill its
obligations under this Agreement, such Party shall use reasonable best efforts to cause such third parties to provide such cooperation. Without limiting the foregoing provisions of this Section 10.2, each of the Parties shall cooperate
fully on any issue relating to the transactions contemplated by this Agreement for which the other Party seeks a determination letter or private letter ruling from the IRS, an advisory opinion from the Department of Labor or any other filing,
consent or approval with respect to or by a Governmental Authority. 
 Section 10.3 Employer Rights. Without limiting
Section 2.8 and except as otherwise expressly provided in this Agreement (including Section 2.2), nothing in this Agreement shall prohibit any Party or any of their respective Affiliates from amending, modifying or
terminating any of their respective Benefit Arrangements at any time within their sole discretion. 
 Section 10.4 Effect on
Employment. Without limiting Section 2.3 or Section 2.4, except as expressly provided in this Agreement, the mere occurrence of the Separation, Distribution or Mergers shall not cause any employee to be deemed to have
incurred a termination of employment which entitles such individual to the commencement of benefits under any of the Danaher Benefit Arrangements (provided that Newco Employees may become eligible for a distribution from the Danaher U.S. Savings
Plan, a Danaher Non-U.S. Savings Plan or the Danaher NQDC Plan, in each case in accordance with the terms of the applicable plan). 

Section 10.5 Consent of Third Parties. If any provision of this Agreement is dependent on the Consent of any third party and such
Consent is withheld, the Parties hereto shall use their reasonable best efforts to implement the applicable provisions of this Agreement to the fullest extent practicable. If any provision of this Agreement cannot be implemented due to the failure
of such third party to consent, the Parties hereto shall negotiate in good faith to implement the provision (as applicable) in a mutually satisfactory manner. 

Section 10.6 Access to Employees. On and after the Effective Time, Danaher, Newco and NetScout shall, and shall cause each of
their respective Affiliates to, use their reasonable efforts to make available to each other those of their employees who may reasonably be needed in order to defend or prosecute any legal or administrative Action (other than a legal action between
or among any of the Parties) to which any employee, director or Benefit Arrangement of the Danaher Group, Newco Group or NetScout Group is a party and which relates in any way to their respective employment or to their respective Benefit
Arrangements prior to the Effective Time. The Party to whom an employee is made available in accordance with this Section 10.6 shall pay or reimburse the other Party for all reasonable expenses which may be incurred by such employee in
connection therewith, including all reasonable travel, lodging, and meal expenses. 
 Section 10.7 Beneficiary Designation/Release
of Information/Right to Reimbursement. To the extent permitted by applicable Law and except as otherwise provided for in this Agreement, all beneficiary designations, authorizations for the release of Information and rights to reimbursement made
by or relating to Newco Employees under Danaher Benefit Arrangements shall be transferred to and be in full force and effect under the corresponding NetScout Benefit Arrangements until such beneficiary designations, authorizations or rights are
replaced or revoked by, or no longer apply, to the relevant Newco Employee. 

  
 31 

 ARTICLE XI 

MISCELLANEOUS 

Section 11.1 Entire Agreement. This Agreement, the Confidentiality Agreement, the Merger Agreement, the Distribution Agreement and
the other Ancillary Agreements, including any related annexes, schedules and exhibits, as well as any other agreements and documents referred to herein and therein, shall together constitute the entire agreement between the Parties with respect to
the subject matter hereof and thereof and shall supersede all prior negotiations, agreements and understandings of the Parties of any nature, whether oral or written, with respect to such subject matter. 

Section 11.2 Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of
Delaware, without giving effect to any choice or conflict of law provision or rule (whether of the State of Delaware or any other jurisdiction) that would cause the application of the laws of any jurisdiction other than the State of Delaware. 

Section 11.3 Specific Performance; Jurisdiction. The Parties understand and agree that the covenants and agreements on each of
their parts herein contained are uniquely related to the desire of the Parties and their respective Affiliates to consummate the Transactions, that the Transactions are a unique business opportunity at a unique time for each of Danaher, NetScout and
Newco and their respective Affiliates, and further agree that irreparable damage would occur in the event that any provision of this Agreement were not performed in accordance with its specific terms, and further agree that, although monetary
damages may be available for the breach of such covenants and agreements, monetary damages would be an inadequate remedy therefor. It is accordingly agreed that, in addition to any other remedy that may be available to it, including monetary
damages, each of the Parties (including NetScout for so long as the Merger Agreement has not been terminated in accordance with its terms) shall be entitled to an injunction or injunctions to prevent breaches of this Agreement and to enforce
specifically the terms and provisions of this Agreement exclusively in the Delaware Court of Chancery and any state appellate court therefrom within the State of Delaware (or, if the Delaware Court of Chancery declines to accept jurisdiction over a
particular matter, any state or federal court within the State of Delaware). Each of the Parties (including NetScout for so long as the Merger Agreement has not been terminated in accordance with its terms) further agrees that no Party shall be
required to obtain, furnish or post any bond or similar instrument in connection with or as a condition to obtaining any remedy referred to in this Section 11.3 and each Party waives any objection to the imposition of such relief or any
right it may have to require the obtaining, furnishing or posting of any such bond or similar instrument. In addition, each of the Parties (including NetScout for so long as the Merger Agreement has not been terminated in accordance with its terms)
irrevocably agrees that any legal action or proceeding with respect to this Agreement and the rights and obligations arising hereunder, or for recognition and enforcement of any judgment in respect of this Agreement and the rights and obligations
arising hereunder brought by any Party or its successors or assigns, shall be brought and determined exclusively in 

  
 32 

 
the Delaware Court of Chancery and any state appellate court therefrom within the State of Delaware (or, if the Delaware Court of Chancery declines to accept jurisdiction over a particular
matter, any state or federal court within the State of Delaware). Each of the Parties (including NetScout for so long as the Merger Agreement has not been terminated in accordance with its terms) hereby irrevocably submits with regard to any such
action or proceeding for itself and in respect of its property, generally and unconditionally, to the personal jurisdiction of the aforesaid courts and agrees that it will not bring any action relating to this Agreement or any of the transactions
contemplated by this Agreement in any court other than the aforesaid courts. Each of the Parties (including NetScout for so long as the Merger Agreement has not been terminated in accordance with its terms) hereby irrevocably waives, and agrees not
to assert, by way of motion, as a defense, counterclaim or otherwise, in any action or proceeding with respect to this Agreement, (a) any claim that it is not personally subject to the jurisdiction of the above named courts for any reason other
than the failure to serve in accordance with this Section 11.3, (b) any claim that it or its property is exempt or immune from jurisdiction of any such court or from any legal process commenced in such courts (whether through
service of notice, attachment prior to judgment, attachment in aid of execution of judgment, execution of judgment or otherwise) and (c) to the fullest extent permitted by the applicable Law, any claim that (i) the suit, action or
proceeding in such court is brought in an inconvenient forum, (ii) the venue of such suit, action or proceeding is improper or (iii) this Agreement, or the subject matter hereof, may not be enforced in or by such courts. 

Section 11.4 Waiver of Jury Trial. EACH OF THE PARTIES IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY ACTION ARISING
OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY. 
 Section 11.5 Notices. All notices, requests,
permissions, waivers and other communications hereunder shall be in writing and shall be deemed to have been duly given (a) five (5) Business Days following sending by registered or certified mail, postage prepaid, (b) when sent, if
sent by facsimile, provided, that the facsimile transmission is promptly confirmed and any facsimile transmission received after 5:00 p.m. Eastern time shall be deemed received at 9:00 a.m. Eastern time on the following Business Day,
(c) when delivered, if delivered personally to the intended recipient and (d) one (1) Business Day following sending by overnight delivery via a national courier service and, in each case, addressed to a Party at the following address
for such Party: 
  

					
	(a)	  	If to NetScout or Newco:	  	
			
		  	 NetScout Systems, Inc.
 310 Littleton Road

Westford, Massachusetts 01886
 Attn: Anil K. Singhal, CEO

Email: Anil.Singhal@netscout.com
 Facsimile:
(978) 614-4004
	  	

  
 33 

					
		  	with a copy to (which shall not constitute notice):
		
		  	Cooley LLP
		  	500 Boylston Street, 14th Floor
		  	Boston, MA 02116
		  	Attn:	  	Miguel J. Vega
		  		  	Barbara Borden
		  	Facsimile:	  	(617) 937-2400
		
		  	and with a copy to (which shall not constitute notice):
		
		  	 Baker & McKenzie LLP
 660
Hansen Way
 Palo Alto, CA 94304
 Attn: Matthew Gemello

Facsimile: (650) 856-9299

		
	(b)	  	If to Danaher:
		
		  	c/o Danaher Corporation
		  	2200 Pennsylvania Ave., NW - Suite 800W
		  	Washington, DC 20037-1701
		  	Attn:	  	Attila Bodi
		  	Email:	  	attila.bodi@danaher.com
		  	Facsimile:	  	(202) 419-7676
		  	Attn:	  	Jonathan Schwarz
		  	Email:	  	jonathan.schwarz@danaher.com
		  	Facsimile:	  	(202) 419-7668
		
		  	with a copy to (which shall not constitute notice):
		
		  	Skadden, Arps, Slate, Meagher & Flom LLP
		  	Four Times Square
		  	New York, NY 10036
		  	Attn:	  	Joseph A. Coco
		  		  	Thomas W. Greenberg
		  	Facsimile:	  	(212) 735-2000

 or to such other address(es) as shall be furnished in writing by any such Party to the other Party in accordance with the
provisions of this Section 11.5. Any notice to Danaher will be deemed notice to all members of the Danaher Group, and any notice to Newco will be deemed notice to all members of the Newco Group. 

Section 11.6 Amendments and Waivers. 

(a) This Agreement may be amended and any provision of this Agreement may be waived, provided, that any such amendment or waiver shall
be binding upon a Party only if such waiver is set forth in a writing executed by such Party and any such amendment shall be effective only if set forth in a writing executed by each of the Parties. No course of dealing between or among any Persons
having any interest in this Agreement shall be deemed effective to modify, amend or discharge any part of this Agreement or any rights or obligations of any Party under or by reason of this Agreement. 

  
 34 

 (b) No delay or failure in exercising any right, power or remedy hereunder shall affect or
operate as a waiver thereof; nor shall any single or partial exercise thereof or any abandonment or discontinuance of steps to enforce such a right, power or remedy preclude any further exercise thereof or of any other right, power or remedy. The
rights and remedies hereunder are cumulative and not exclusive of any rights or remedies that any Party would otherwise have. Any waiver, permit, consent or approval of any kind or character of any breach or default under this Agreement or any such
waiver of any provision of this Agreement must satisfy the conditions set forth in Section 11.6(a) and shall be effective only to the extent in such writing specifically set forth. 

Section 11.7 Termination. This Agreement shall terminate without further action at any time before the Closing upon termination of
the Merger Agreement. If terminated, no Party shall have any Liability of any kind to the other Party or any other Person on account of this Agreement, except as provided in the Merger Agreement. 

Section 11.8 No Third-Party Beneficiaries. Except for the provisions of Article IX with respect to indemnification of
Indemnitees, which is intended to benefit and be enforceable by the Persons specified therein as Indemnitees, this Agreement is solely for the benefit of the Parties and does not confer on third parties (including any employees of any member of the
Danaher Group, the Newco Group or the NetScout Group) any remedy, claim, reimbursement, claim of action or other right in addition to those existing without reference to this Agreement. 

Section 11.9 Assignability; Binding Effect. This Agreement is not assignable by any Party without the prior written consent of the
other Parties and any attempt to assign this Agreement without such consent shall be void and of no effect. This Agreement shall be binding upon and inure to the benefit of the Parties and their respective successors and permitted assigns. 

Section 11.10 Construction; Interpretation. Headings of the Articles and Sections of this Agreement are for convenience of the
Parties only and shall be given no substantive or interpretive effect whatsoever. The table of contents to this Agreement is for reference purposes only and shall not affect in any way the meaning or interpretation of this Agreement. Whenever
required by the context, any pronoun used in this Agreement or the Schedules and Exhibits hereto shall include the corresponding masculine, feminine or neuter forms, and the singular forms of nouns, pronouns and verbs shall include the plural and
vice versa. Reference to any agreement, document, or instrument means such agreement, document or instrument as amended or otherwise modified from time to time in accordance with the terms thereof, and if applicable hereof. Whenever the words
“include,” “includes” or “including” are used in this Agreement, they shall be deemed to be followed by the words “without limitation.” The words “hereof,” “herein” and
“hereunder” and words of similar import when used in this Agreement shall refer to this Agreement as a whole and not to any particular provision of this Agreement. The Parties have participated jointly in the negotiation and drafting of
this Agreement, the Merger Agreement, the Distribution Agreement and the other Ancillary Agreements. In the event an ambiguity or question of intent or interpretation arises, this Agreement shall be construed as if drafted jointly by the Parties,
and no presumption or burden of proof shall arise favoring or disfavoring any Party by virtue of the authorship of any of the provisions of this Agreement. 

  
 35 

 Section 11.11 Severability. Any term or provision of this Agreement which is invalid
or unenforceable in any jurisdiction shall, as to that jurisdiction, be ineffective to the extent of such invalidity or unenforceability without rendering invalid or unenforceable the remaining terms and provisions of this Agreement in any other
jurisdiction. If any provision of this Agreement is so broad as to be unenforceable, such provision shall be interpreted to be only so broad as is enforceable. 

Section 11.12 Counterparts. This Agreement may be executed in multiple counterparts (any one of which need not contain the
signatures of more than one Party), each of which shall be deemed to be an original but all of which taken together shall constitute one and the same agreement. This Agreement, and any amendments hereto, to the extent signed and delivered by means
of a facsimile machine or other electronic transmission, shall be treated in all manner and respects as an original agreement and shall be considered to have the same binding legal effects as if it were the original signed version thereof delivered
in person. At the request of any Party, the other Party shall re-execute original forms thereof and deliver them to the requesting Party. No Party shall raise the use of a facsimile machine or other electronic means to deliver a signature or the
fact that any signature was transmitted or communicated through the use of a facsimile machine or other electronic means as a defense to the formation of a Contract and each such Party forever waives any such defense. 

Section 11.13 Relationship of Parties. Nothing in this Agreement shall be deemed or construed by the Parties or any third party as
creating the relationship of principal and agent, partnership, joint venture or joint employer relationship between or among the Parties, it being understood and agreed that no provision contained herein, and no act of the Parties, shall be deemed
to create any relationship between or among the Parties other than the relationship set forth herein. 
 Section 11.14
Subsidiaries. Each of the Parties shall cause to be performed all actions, agreements and obligations set forth herein to be performed by any Subsidiary or Affiliate of such Party or by any entity that becomes a Subsidiary or Affiliate of
such Party on or after the date hereof. Each of the Parties may assign to one of its respective Subsidiaries or Affiliates (including any Person which becomes a Subsidiary or Affiliate on or after the date hereof) the requirement to take any or all
actions and discharge any or all obligations set forth herein to be performed or discharged by the Party. In no event shall this Agreement be construed as establishing a partnership or joint venture or similar relationship between or among a Party
and its Subsidiaries or Affiliates or to cause any such Person to be treated as the alter ego of the other. 
 Section 11.15 Dispute
Resolution. Any controversy, dispute or claim arising out of, in connection with, or in relation to the interpretation, performance, nonperformance, validity, termination or breach of this Agreement or otherwise arising out of, or in any way
related to this Agreement or the transactions contemplated hereby or thereby shall be subject to the dispute resolutions procedures set forth in Article VIII of the Distribution Agreement. 

  
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 Section 11.16 Guarantee. Following the Effective Time, NetScout unconditionally,
absolutely and irrevocably guarantees to Danaher the prompt payment, in full, when due, of any payment obligations of all members of the Newco Group under this Agreement and the other Transaction Documents after the Closing and the prompt
performance, when due, of all other obligations of any member of the Newco Group under this Agreement and the other Transaction Documents after the Closing. NetScout’s obligations to Danaher under this Section 11.16 are referred to
as the “Guaranteed Obligations.” The Guaranteed Obligations are absolute and unconditional, irrespective of, and NetScout hereby expressly waives to the extent permitted by law, any defense to its obligations under this
Section 11.16, any circumstance whatsoever which might otherwise constitute a legal or equitable defense available to, or discharge of, a surety or a guarantor, including any right to require or claim that Danaher seek recovery directly
from any member of the Newco Group in respect of the Guaranteed Obligations. 
 [Remainder of this page intentionally left blank.]

  
 37 

 IN WITNESS WHEREOF, the Parties have caused this Agreement to be duly executed as of the day and
year first above written. 
  

			
	DANAHER CORPORATION
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	POTOMAC HOLDING LLC
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	NETSCOUT SYSTEMS, INC.
		
	By:	 	  

	Name:	 	
	Title:EX-10.2

 Exhibit 10.2 

FORM OF 
 TAX MATTERS AGREEMENT

 by and among
 Danaher
Corporation,
 Potomac Holding LLC 

and 
 NetScout Systems, Inc.

Dated as of [—] 

 FORM OF TAX MATTERS AGREEMENT 

THIS TAX MATTERS AGREEMENT (this “Agreement”), dated as of [—], is by and
among Danaher Corporation, a Delaware corporation (“Danaher”), Potomac Holding LLC, a Delaware limited liability company (“Newco”), and NetScout Systems, Inc., a Delaware corporation (“NetScout”).
Each of Danaher, Newco and NetScout is sometimes referred to herein as a “Party” and, collectively, as the “Parties.” 

WHEREAS, Danaher is engaged, directly and indirectly, in the Communications Business; 

WHEREAS, the Board of Directors of Danaher has determined that it is advisable and in the best interests of Danaher and Danaher’s
shareholders to separate the Communications Business from the other businesses of Danaher and to divest the Communications Business in the manner contemplated by the Distribution Agreement and the Merger Agreement; 

WHEREAS, Danaher and Newco have entered into the Distribution Agreement pursuant to which (a) (i) Danaher will, and will cause its
Subsidiaries to, transfer certain assets, liabilities and subsidiaries of the Communications Business to Newco and its Subsidiaries, and (ii) Newco will, and/or will cause one or more of its Subsidiaries to, transfer certain assets,
liabilities, subsidiaries and/or businesses to Danaher and its Subsidiaries, as a result of which Newco will own, directly and indirectly through its Subsidiaries, the Communications Business and will not own, directly or indirectly through its
Subsidiaries, any of the Danaher Business (collectively, the “Restructuring”), and (b) Danaher will distribute the interests in Newco to its shareholders (the “Distribution”) as described therein; 

WHEREAS, the Parties intend that, for U.S. federal income Tax purposes, certain steps of the Restructuring and the Distribution shall qualify
as tax-free transactions within the meaning of Section 355(a) and/or Section 368(a)(1)(D) of the Code; 
 WHEREAS, Danaher has
requested the IRS Ruling from the IRS; 
 WHEREAS, the Parties contemplate that, pursuant to the Merger Agreement, immediately after the
Distribution and at the Effective Time, RS Merger Sub I, Inc. shall be merged (the “Merger”) with and into Newco, with Newco surviving the Merger as a wholly owned subsidiary of NetScout, and the Newco Common Units shall be
converted into the right to receive shares of common stock of NetScout on the terms and subject to the conditions of the Merger Agreement and in accordance with the Delaware General Corporation Law and the Delaware Limited Liability Company Act;

 WHEREAS, immediately following the Merger, Newco will merge with and into RS Merger Sub II, LLC, a Delaware limited liability company and
a direct wholly owned subsidiary of NetScout (“Merger Sub II”) with Merger Sub II surviving the merger (such merger, the “LLC Merger”) in the manner contemplated by the Merger Agreement; and 

 WHEREAS, the Parties wish to (a) provide for the payment of Tax liabilities and entitlement
to refunds thereof, allocate responsibility for, and cooperation in, the filing of Tax Returns, and provide for certain other matters relating to Taxes and (b) set forth certain covenants and indemnities relating to the preservation of the
tax-free status of certain steps of the Restructuring and the Distribution. 
 NOW, THEREFORE, in consideration of the foregoing and the
representations, warranties, covenants and agreements contained herein, and intending to be legally bound hereby, the Parties agree as follows: 

ARTICLE I  

DEFINITIONS 

Section 1.01 General. As used in this Agreement, the following terms shall have the following meanings: 

“Accounting Firm” has the meaning set forth in Section 8.01. 

“Adjustment” means an adjustment of any item of income, gain, loss, deduction, credit or any other item affecting Taxes of a
taxpayer pursuant to a Final Determination. 
 “Agreement” has the meaning set forth in the preamble to this Agreement.

 “Ancillary Agreement” has the meaning set forth in the Distribution Agreement. 

“Benefited Party” has the meaning set forth in Section 4.01(b). 

“Carryback” has the meaning set forth in Section 4.02(b). 

“Closing Date” has the meaning set forth in the Merger Agreement. 

“Code” means the Internal Revenue Code of 1986, as amended. 

“Common Parent” means the “common parent corporation” of an “affiliated group” (in each case, within the
meaning of Section 1504 of the Code) filing a U.S. federal consolidated Income Tax Return. 
 “Communications
Business” has the meaning set forth for in the Distribution Agreement. 
 “Confidentiality Agreement” has the
meaning set forth in the Merger Agreement. 
 “Counsel” means Skadden, Arps, Slate, Meagher & Flom LLP. 

“Danaher” has the meaning set forth in the preamble to this Agreement. 

“Danaher Business” means any businesses currently or formerly conducted by any member of the Danaher Group, other than the
Communications Business. 

  
 -2- 

 “Danaher Consolidated Return” means the U.S. federal Income Tax Return required
to be filed by Danaher as the Common Parent. 
 “Danaher Consolidated Taxes” means any U.S. federal Income Taxes
attributable to any Danaher Consolidated Return. 
 “Danaher Disqualifying Action” means (a) any action (or the
failure to take any action) within its control by Danaher or any Danaher Entity (including entering into any agreement, understanding or arrangement or any negotiations with respect to any transaction or series of transactions) that, (b) any
event (or series of events) involving the capital stock of Danaher, any assets of Danaher or any assets of any Danaher Entity that, or (c) any breach by Danaher or any Danaher Entity of any representation, warranty or covenant made by them in
this Agreement that, in each case, would affect the Tax-Free Status of the Transactions; provided, however, the term “Danaher Disqualifying Action” shall not include any action described in or contemplated by the
Distribution Agreement, the Merger Agreement or any Ancillary Agreement or that is undertaken pursuant to the Restructuring or the Distribution. 

“Danaher Entity” means any Subsidiary of Danaher immediately after the Effective Time. 

“Danaher Group” means, individually or collectively, as the case may be, Danaher and any Danaher Entity. 

“Danaher Taxes” means, without duplication, (a) any Danaher Consolidated Taxes, (b) any (i) gain recognized
under Treasury Regulations Section 1.1502-19(b) in connection with an excess loss account with respect to the stock of Newco or any member of the Newco Group at the time of the Distribution, (ii) net deferred gains taken into account under
Treasury Regulations Section 1.1502-13(d) associated with deferred intercompany transactions between a Newco Group member and a Danaher Group member, and (iii) gains described in clause (i) or (ii) that are imposed under similar
state, local or non-U.S. Law, (c) any Taxes imposed on Newco or any member of the Newco Group under Treasury Regulations Section 1.1502-6 (or any similar provision of other Law) as a result of Newco or any such member being or having been
included as part of a Danaher Consolidated Return (or similar consolidated or combined Tax Return under any other provision of Law), (d) any Taxes not described in clause (a), (b) or (c) (including any Taxes resulting from an
Adjustment) of Danaher or any Subsidiary or former Subsidiary of Danaher for any Pre-Closing Period and, with respect to a Straddle Period, the portion of such period ending at the end of the day on the Closing Date (determined in accordance with
Section 2.05), (e) any Taxes attributable to a Danaher Disqualifying Action, (f) any Transaction Taxes, and (g) any Transfer Taxes, in each case other than Newco Taxes. 

“Disqualifying Action” means a Danaher Disqualifying Action or a Newco Disqualifying Action. 

“Distribution” has the meaning set forth in the recitals to this Agreement. 

“Distribution Agreement” means the Separation and Distribution Agreement by and between Danaher and Newco dated as of
October 12, 2014. 

  
 -3- 

 “Due Date” means (a) with respect to a Tax Return, the date (taking into
account all valid extensions) on which such Tax Return is required to be filed under applicable Law and (b) with respect to a payment of Taxes, the date on which such payment is required to be made to avoid the incurrence of interest, penalties
and/or additions to Tax. 
 “Effective Time” has the meaning set forth in the Merger Agreement. 

“Employee Matters Agreement” means the Employee Matters Agreement by and between the Parties dated as of [—]. 
 “Extraordinary Transaction” means any action that is not in the
Ordinary Course of Business, but shall not include any action described in or contemplated by the Distribution Agreement, the Merger Agreement or any Ancillary Agreement (including, without limitation, the LLC Merger) or that is undertaken pursuant
to the Restructuring or the Distribution. 
 “Fifty-Percent or Greater Interest” has the meaning ascribed to such term for
purposes of Sections 355(d) and (e) of the Code. 
 “Final Determination” means the final resolution of liability for
any Tax for any taxable period, by or as a result of (a) a final decision, judgment, decree or other order by any court of competent jurisdiction that can no longer be appealed, (b) a final settlement with the IRS, a closing agreement or
accepted offer in compromise under Sections 7121 or 7122 of the Code, or a comparable agreement under the Laws of other jurisdictions, which resolves the entire Tax liability for any taxable period, (c) any allowance of a refund or credit in
respect of an overpayment of Tax, but only after the expiration of all periods during which such refund or credit may be recovered by the jurisdiction imposing the Tax, or (d) any other final resolution, including by reason of the expiration of
the applicable statute of limitations or the execution of a pre-filing agreement with the IRS or other Taxing Authority. 
 “Income
Tax Return” means any Tax Return on which Income Taxes are reflected or reported. 
 “Income Taxes” means any
Taxes based upon, measured by, or calculated with respect to: (a) net income or profits or net receipts (including, but not limited to, any capital gains, minimum Tax or any Tax on items of Tax preference, but not including sales, use, real or
personal property, or transfer or similar Taxes) or (b) multiple bases (including corporate franchise, doing business and occupation Taxes) if one or more bases upon which such Tax may be based, measured by, or calculated with respect to, is
described in clause (a). 
 “Indemnified Party” means the Party which is entitled to seek indemnification from the other
Party pursuant to the provisions of Article III. 
 “Indemnifying Party” means the Party from which the other Party is
entitled to seek indemnification pursuant to the provisions of Article III. 
 “Information” has the meaning set forth in
Section 7.01(a). 
 “Information Request” has the meaning set forth in Section 7.01(a). 

  
 -4- 

 “IRS” means the U.S. Internal Revenue Service. 

“IRS Ruling” means the U.S. federal income Tax ruling, and any supplements thereto, issued to Danaher by the IRS in
connection with the Restructuring and the Distribution. 
 “IRS Ruling Request” means any letter filed by Danaher with the
IRS requesting a ruling regarding certain tax consequences of the Transactions and any amendment or supplement to such ruling request letter. 

“LLC Merger” has the meaning set forth in the recitals to this Agreement. 

“Law” means any U.S. or non-U.S. federal, national, supranational, state, provincial, local or similar statute, law,
ordinance, regulation, rule, code, administrative pronouncement, order, requirement or rule of law (including common law). 

“Merger” has the meaning set forth in the recitals to this Agreement. 

“Merger Agreement” has the meaning set forth in the Distribution Agreement. 

“Merger Sub II” has the meaning set forth in the recitals to this Agreement. 

“Mixed Business Income Tax Return” means any Income Tax Return (other than a Danaher Consolidated Return), including any
consolidated, combined or unitary Income Tax Return, that reflects or reports Income Taxes that relate to at least one asset or activity that is part of the Danaher Business, on the one hand, and at least one asset or activity that is part of the
Communications Business, on the other hand. 
 “Mixed Business Non-Income Tax Return” means any Non-Income Tax Return that
reflects or reports Non-Income Taxes that relate to at least one asset or activity that is part of the Danaher Business, on the one hand, and at least one asset or activity that is part of the Communications Business, on the other hand. 

“Mixed Business Non-Income Taxes” means any U.S. federal, state or local, or foreign Non-Income Taxes attributable to any
Mixed Business Non-Income Tax Return. 
 “Mixed Business Non-U.S. Income Tax Return” means any Mixed Business Income Tax
Return on which Mixed Business Non-U.S. Income Taxes are reflected or reported. 
 “Mixed Business Non-U.S. Income Taxes”
means any foreign Income Taxes attributable to any Mixed Business Income Tax Return. 
 “Mixed Business U.S. Income Tax
Return” means any Mixed Business Income Tax Return on which Mixed Business U.S. Income Taxes are reflected or reported. 

“Mixed Business U.S. Income Taxes” means any U.S. federal, state or local Income Taxes attributable to any Mixed Business
Income Tax Return. 
 “NetScout” has the meaning set forth in the preamble to this Agreement. 

  
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 “Newco” has the meaning set forth in the preamble to this Agreement. 

“Newco capital stock” means the equity interests in Newco, treated as stock for U.S. federal income tax purposes. 

“Newco Disqualifying Action” means (a) any action (or the failure to take any action) within its control by Newco or any
Newco Entity (including entering into any agreement, understanding or arrangement or any negotiations with respect to any transaction or series of transactions) that, (b) any event (or series of events) involving the capital stock of Newco, any
assets of Newco or any assets of any Newco Entity that, or (c) any breach by Newco or any Newco Entity of any representation, warranty or covenant made by them in this Agreement that, in each case, would affect the Tax-Free Status of the
Transactions; provided, however, that the term “Newco Disqualifying Action” shall not include any action (including, without limitation, the LLC Merger) described in or contemplated by the Distribution Agreement, the
Merger Agreement or any Ancillary Agreement or that is undertaken pursuant to the Restructuring or the Distribution. 
 “Newco
Employee” has the meaning set forth in Section 4.04(b). 
 “Newco Entity” means any Subsidiary of Newco
immediately after the Effective Time. 
 “Newco Excluded Taxes” means (a) any Transaction Taxes and (b) Taxes
caused by a Danaher Disqualifying Action, in each case except to the extent attributable to a Newco Disqualifying Action. 
 “Newco
Group” means, individually or collectively, as the case may be, Newco and any Newco Entity. 
 “Newco Taxes”
means, without duplication, (a) any Taxes of Danaher or any Subsidiary or former Subsidiary of Danaher for any Post-Closing Period attributable to the Tax Items properly attributable to assets or activities of the Communications Business, as
determined pursuant to Section 2.08, and (b) any Taxes attributable to a Newco Disqualifying Action, in each case including any Taxes resulting from an Adjustment. For the avoidance of doubt, Newco Taxes shall not include any Newco
Excluded Taxes. 
 “Non-Income Tax Return” means any Tax Return relating to Taxes other than Income Taxes. 

“Non-Income Taxes” means any Taxes other than Income Taxes. 

“Notified Action” has the meaning set forth in Section 6.03(a). 

“Opinions” means the opinions of Counsel with respect to certain Tax aspects of the Transactions. 

“Ordinary Course of Business” means an action taken by a Person only if such action is taken in the ordinary course of the
normal operations of such Person. 

  
 -6- 

 “Party” and “Parties” have the meaning set forth in the
preamble to this Agreement. 
 “Past Practice” means past practices, accounting methods, elections and conventions. 

“Person” has the meaning set forth in the Distribution Agreement. 

“Post-Closing Period” means any taxable period (or portion thereof) beginning after the Closing Date, including for the
avoidance of doubt, the portion of any Straddle Period beginning after the Closing Date. 
 “Pre-Closing Period” means any
taxable period (or portion thereof) ending on or before the Closing Date, including for the avoidance of doubt, the portion of any Straddle Period ending at the end of the day on the Closing Date. 

“Preparing Party” has the meaning set forth in Section 2.04(a)(ii). 

“Proposed Acquisition Transaction” means a transaction or series of transactions (or any agreement, understanding or
arrangement, within the meaning of Section 355(e) of the Code and Treasury Regulation Section 1.355-7, or any other regulations promulgated thereunder, to enter into a transaction or series of transactions), whether such transaction is
supported by Newco management or shareholders, is a hostile acquisition, or otherwise, as a result of which one or more Persons would (directly or indirectly) acquire, or have the right to acquire, from Newco and/or one or more holders of
outstanding shares of Newco capital stock, as the case may be, a number of shares of Newco capital stock that would, when combined with any other direct or indirect changes in ownership of Newco capital stock pertinent for purposes of
Section 355(e) of the Code (including the Merger and the LLC Merger), comprise 50% or more of (a) the value of all outstanding shares of stock of Newco as of the date of such transaction, or in the case of a series of transactions, the
date of the last transaction of such series, or (b) the total combined voting power of all outstanding shares of voting stock of Newco as of the date of such transaction, or in the case of a series of transactions, the date of the last
transaction of such series. Notwithstanding the foregoing, a Proposed Acquisition Transaction shall not include (i) the adoption by Newco or NetScout of, or the issuance of stock pursuant to, a shareholder rights plan or (ii) issuances by
Newco that satisfy Safe Harbor VIII (relating to acquisitions in connection with a person’s performance of services) or Safe Harbor IX (relating to acquisitions by a retirement plan of an employer) of Treasury Regulation
Section 1.355-7(d). For purposes of determining whether a transaction constitutes an indirect acquisition, any recapitalization resulting in a shift of voting power or any redemption of shares of stock shall be treated as an indirect
acquisition of shares of stock by the non-exchanging shareholders (except to the extent provided otherwise in the IRS Ruling). This definition and the application thereof is intended to monitor compliance with Section 355(e) of the Code and
shall be interpreted accordingly. Any clarification of, or change in, the statute or regulations promulgated under Section 355(e) of the Code shall be incorporated in this definition and its interpretation. For the avoidance of doubt, neither
the Merger nor the LLC Merger shall constitute a Proposed Acquisition Transaction. 
 “Refund” means any refund (or credit
in lieu thereof) of Taxes (including any overpayment of Taxes that can be refunded or, alternatively, applied to other Taxes payable), including any interest paid on or with respect to such refund of Taxes; provided, however, that

  
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for purposes of this Agreement, the amount of any Refund required to be paid to another Party shall be reduced by the net amount of any Income Taxes imposed on, related to, or attributable to,
the receipt or accrual of such Refund. 
 “Restriction Period” has the meaning set forth in Section 6.02(b). 

“Restructuring” has the meaning set forth in the recitals to this Agreement. 

“Restructuring VAT” means any VAT arising pursuant to the Restructuring or otherwise arising prior to the Closing Date. 

“Reviewing Party” has the meaning set forth in Section 2.04(a)(ii). 

“Single Business Return” means any Tax Return including any consolidated, combined or unitary Tax Return, that reflects or
reports Tax Items relating only to the Danaher Business, on the one hand, or the Communications Business, on the other (but not both). 

“Single Business Return Preparing Party” has the meaning set forth in Section 2.04(b). 

“Single Business Return Reviewing Party” has the meaning set forth in Section 2.04(b). 

“Single Business Taxes” means any U.S. federal, state or local, or foreign Taxes attributable to any Single Business Return.

 “Straddle Period” means any taxable period that begins on or before and ends after the Closing Date. 

“Subsidiary” has the meaning set forth in the Distribution Agreement. 

“Tax” means (a) all taxes, charges, fees, duties, levies, imposts, or other similar assessments, imposed by any U.S.
federal, state or local or foreign governmental authority, including, but not limited to, net income, gross income, gross receipts, excise, real property, personal property, sales, use, service, service use, license, lease, capital stock, transfer,
recording, franchise, business organization, occupation, premium, environmental, windfall profits, profits, customs, duties, payroll, wage, withholding, social security, employment, unemployment, insurance, severance, workers compensation, excise,
stamp, alternative minimum, estimated, value added, ad valorem and other taxes, charges, fees, duties, levies, imposts, or other similar assessments, (b) any interest, penalties or additions attributable thereto and (c) all liabilities in
respect of any items described in clauses (a) or (b) payable by reason of assumption, transferee or successor liability, operation of Law or Treasury Regulation Section 1.1502-6(a) (or any predecessor or successor thereof or any
analogous or similar provision under Law). 
 “Tax Attributes” means net operating losses, capital losses, investment tax
credit carryovers, earnings and profits, foreign tax credit carryovers, overall foreign losses, previously taxed income, separate limitation losses and any other losses, deductions, credits or other comparable items that could affect a Tax liability
for a past or future taxable period. 

  
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 “Tax Benefit” means any refund, credit, or other reduction in Tax payments
otherwise required to be made to a Taxing Authority. 
 “Tax Cost” means any increase in Tax payments otherwise required to
be made to a Taxing Authority (or any reduction in any refund otherwise receivable from any Taxing Authority). 
 “Tax-Free Status
of the Transactions” means the qualification of the Transactions for the intended tax treatment set forth in the Opinions and/or the IRS Ruling. 

“Tax Item” means any item of income, gain, loss, deduction, credit, recapture of credit or any other item which increases or
decreases Taxes paid or payable. 
 “Tax Materials” has the meaning set forth in Section 6.01(a). 

“Tax Matter” has the meaning set forth in Section 7.01(a). 

“Tax Package” means all relevant Tax-related information relating to the operations of the Danaher Business or the
Communications Business, as applicable, that is reasonably necessary to prepare and file the applicable Tax Return. 
 “Tax
Proceeding” means any audit, assessment of Taxes, pre-filing agreement, other examination by any Taxing Authority, proceeding, appeal of a proceeding or litigation relating to Taxes, whether administrative or judicial, including proceedings
relating to competent authority determinations. 
 “Tax Return” means any return, report, certificate, form or similar
statement or document (including any related or supporting information or schedule attached thereto and any information return, or declaration of estimated Tax) required to be supplied to, or filed with, a Taxing Authority in connection with the
payment, determination, assessment or collection of any Tax or the administration of any Laws relating to any Tax and any amended Tax return or claim for refund. 

“Taxing Authority” means any governmental authority or any subdivision, agency, commission or entity thereof or any
quasi-governmental or private body having jurisdiction over the assessment, determination, collection or imposition of any Tax (including the IRS). 

“Transaction Taxes” means (a) any Taxes imposed on or by reason of the Restructuring, other than any such Taxes caused
by a Newco Disqualifying Action, and (b) any Taxes payable by reason of the distribution of cash or any other property from Newco to Danaher. For the avoidance of doubt, Transaction Taxes include, without limitation, Taxes payable by reason of
the settlement of Intercompany Accounts as contemplated by Section 1.07 of the Distribution Agreement. 

“Transactions” means the Restructuring, the Distribution and the other transactions contemplated by the Distribution
Agreement, the Merger Agreement and the Ancillary Agreements. 

  
 -9- 

 “Transfer Taxes” means all sales, use, transfer, real property transfer,
intangible, recordation, registration, documentary, stamp or similar Taxes imposed on the Restructuring or the Distribution. 

“Treasury Regulations” means the final and temporary (but not proposed) income Tax regulations promulgated under the Code, as
such regulations may be amended from time to time (including corresponding provisions of succeeding regulations). 
 “Unqualified
Tax Opinion” means a “will” opinion, without substantive qualifications, of a nationally recognized law or accounting firm, which firm is reasonably acceptable to Danaher, to the effect that a transaction will not affect the
Tax-Free Status of the Transactions. 
 “U.S.” means the United States of America. 

“U.S. Income Taxes” means any Income Taxes imposed by or payable to the United States, any State or any political subdivision
of the United States or any State. 
 “VAT” means the value added tax provided for in European Union Directive 2006/112/EC
and charged under the provisions of any national legislation implementing that directive or European Union Directive 77/388/EEC together with legislation supplemental thereto and any similar tax in any other jurisdiction. 

Section 1.02 Additional Definitions. Capitalized terms not defined in this Agreement shall have the meaning ascribed to them in
the Distribution Agreement. 
 ARTICLE II 

PREPARATION, FILING AND PAYMENT OF TAXES SHOWN DUE ON TAX RETURNS 

Section 2.01 U.S. Income Tax Returns. 

(a) Danaher Consolidated Returns. Danaher shall prepare and file all Danaher Consolidated Returns for a Pre-Closing Period or a
Straddle Period, and shall pay all Taxes shown to be due and payable on such Tax Returns; provided that Newco shall reimburse Danaher for any such Taxes that are Newco Taxes. 

(b) Extraordinary Transactions. Notwithstanding anything to the contrary in this Agreement, for all Tax purposes, the Parties shall
report any Extraordinary Transactions that are caused or permitted by Newco or any Newco Entity on the Closing Date after the Effective Time as occurring on the day after the Closing Date pursuant to Treasury Regulation
Section 1.1502-76(b)(1)(ii)(B) or any similar or analogous provision of state, local or foreign Law. 
 (c) Mixed Business U.S.
Income Tax Returns. 
 (i) Danaher shall prepare and file (or cause a Danaher Entity to prepare and file) any Mixed
Business U.S. Income Tax Return for a Pre-Closing Period 

  
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or a Straddle Period required to be filed by Danaher or a Danaher Entity and shall pay, or cause such Danaher Entity to pay, all Taxes shown to be due and payable on such Tax Return;
provided that Newco shall reimburse Danaher for any such Taxes that are Newco Taxes. 
 (ii) Newco shall prepare and
file (or cause a Newco Entity to prepare and file) any Mixed Business U.S. Income Tax Return for a Pre-Closing Period or a Straddle Period required to be filed by Newco or a Newco Entity after the Closing Date, if any, and shall pay, or cause such
Newco Entity to pay, all Taxes shown to be due and payable on such Tax Return; provided that Danaher shall reimburse Newco for any such Taxes that are Danaher Taxes. 

(d) Single Business U.S. Income Tax Returns. 

(i) Danaher shall prepare and file (or cause a Danaher Entity to prepare and file) any Single Business Return that relates to
U.S. Income Taxes for a Pre-Closing Period or a Straddle Period required to be filed by Danaher or a Danaher Entity, if any, and shall pay, or cause such Danaher Entity to pay, all Taxes shown to be due and payable on such Tax Return;
provided that Newco shall reimburse Danaher for any such Taxes that are Newco Taxes. 
 (ii) Newco shall prepare and
file (or cause a Newco Entity to prepare and file) any Single Business Return that relates to U.S. Income Taxes for a Pre-Closing Period or a Straddle Period required to be filed by Newco or a Newco Entity after the Closing Date, if any, and shall
pay, or cause such Newco Entity to pay, all Taxes shown to be due and payable on such Tax Return; provided that Danaher shall reimburse Newco for any such Taxes that are Danaher Taxes. 

Section 2.02 Mixed Business Non-U.S. Income Tax Returns and Mixed Business Non-Income Tax Returns. 

(a) Danaher shall prepare and file (or cause a Danaher Entity to prepare and file) any Mixed Business Non-U.S. Income Tax Return and any Mixed
Business Non-Income Tax Return for a Pre-Closing Period or a Straddle Period required to be filed by Danaher or a Danaher Entity and shall pay, or cause such Danaher Entity to pay, all Taxes shown to be due and payable on such Tax Return;
provided that Newco shall reimburse Danaher for any such Taxes that are Newco Taxes. 
 (b) Newco shall prepare and file (or cause a
Newco Entity to prepare and file) any Mixed Business Non-U.S. Income Tax Return and any Mixed Business Non-Income Tax Returns, in each case for a Pre-Closing Period or a Straddle Period required to be filed by Newco or a Newco Entity after the
Closing Date, and Newco shall pay, or cause such Newco Entity to pay, all Taxes shown to be due and payable on such Tax Return; provided that Danaher shall reimburse Newco for any such Taxes that are Danaher Taxes. 

Section 2.03 Single Business Returns. Except as set forth in Section 2.01(d), (a) Danaher shall prepare and file (or
cause a Danaher Entity to prepare and file) any Single Business Return for a Pre-Closing Period or a Straddle Period required to be filed by Danaher or 

  
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a Danaher Entity and shall pay, or cause such Danaher Entity to pay, all Taxes shown to be due and payable on such Tax Return; provided that Newco shall reimburse Danaher for any such
Taxes that are Newco Taxes, and (b) Newco shall prepare and file (or cause a Newco Entity to prepare and file) any Single Business Return for a Pre-Closing Period or a Straddle Period required to be filed by Newco or a Newco Entity and shall
pay, or cause such Newco Entity to pay, all Taxes shown to be due and payable on such Tax Return; provided that Danaher shall reimburse Newco for any such Taxes that are Danaher Taxes. 

Section 2.04 Tax Return Procedures. 

(a) Procedures relating to Tax Returns other than Single Business Returns. 

(i) Danaher Consolidated Returns. With respect to all Danaher Consolidated Returns for the taxable year which includes
the Closing Date, Danaher shall use the closing of the books method under Treasury Regulation Section 1.1502-76. Danaher shall inform Newco of (i) any changes to accounting methods relating to the
Communications Business reflected on a Danaher Consolidated Return, and (ii) any election filed under Treasury Regulations Section 301.7701-3 with respect to a Newco Entity. 

(ii) Mixed Business Tax Returns. To the extent that the positions taken on any Mixed Business U.S. Income Tax Return,
Mixed Business Non-U.S. Income Tax Return or Mixed Business Non-Income Tax Return would reasonably be expected to materially adversely affect the Tax position of the party other than the party that is required to prepare and file any such Tax Return
pursuant to Section 2.01 or 2.02 (the “Reviewing Party”) for any period after the Closing, the party required to prepare and file such Tax Return (the “Preparing Party”) shall prepare the portions of such Tax
Return that relates to the business of the Reviewing Party (the Communications Business or the Danaher Business, as the case may be) in a manner that is consistent with Past Practice unless otherwise required by applicable Law and shall provide a
draft of such portion of such Tax Return to the Reviewing Party for its review and comment at least thirty (30) days prior to the Due Date for such Tax Return, provided, however, that nothing herein shall prevent the Preparing Party from timely
filing any such Tax Return. In the event that Past Practice is not applicable to a particular item or matter, the Preparing Party shall determine the reporting of such item or matter in good faith. The Parties shall negotiate in good faith to
resolve all disputed issues. Any disputes that the Parties are unable to resolve shall be resolved by the Accounting Firm pursuant to Section 8.01. In the event that any dispute is not resolved (whether pursuant to good faith negotiations among
the Parties or by the Accounting Firm) prior to the Due Date for the filing of any such Tax Return, such Tax Return shall be timely filed by the Preparing Party and the Parties agree to amend such Tax Return as necessary to reflect the resolution of
such dispute in a manner consistent with such resolution. 
 (b) Procedures relating to Single Business Returns. The Party that is
required to prepare and file any Single Business Return pursuant to Section 2.01(d) or 2.03 (the “Single Business Return Preparing Party”) which reflects Taxes which are reimbursable by the other Party (the “Single
Business Return Reviewing Party”), in whole or in part, shall (x) unless 

  
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otherwise required by Law or agreed to in writing by the Single Business Return Reviewing Party, prepare such Tax Return in a manner consistent with Past Practice to the extent such items affect
the Taxes for which the Single Business Return Reviewing Party is responsible pursuant to this Agreement, and (y) submit to the Single Business Return Reviewing Party a draft of any such Tax Return (or to the extent practicable the portion of
such Tax Return that relates to Taxes for which the Single Business Return Reviewing Party is responsible pursuant to this Agreement) along with a statement setting forth the calculation of the Tax shown due and payable on such Tax Return
reimbursable by the Single Business Return Reviewing Party under Section 2.01(d) or 2.03 at least thirty (30) days prior to the Due Date for such Tax Return provided, however, that nothing herein shall prevent the Single Business Return
Preparing Party from timely filing any such Single Business Return. The Parties shall negotiate in good faith to resolve all disputed issues. Any disputes that the Parties are unable to resolve shall be resolved by the Accounting Firm pursuant to
Section 8.01. In the event that any dispute is not resolved (whether pursuant to good faith negotiations among the Parties or by the Accounting Firm) prior to the Due Date for the filing of any Single Business Return, such Single Business
Return shall be timely filed by the Single Business Return Preparing Party and the Parties agree to amend such Single Business Return as necessary to reflect the resolution of such dispute in a manner consistent with such resolution. 

(c) Notwithstanding anything to the contrary in this Article II, (i) the portion of any Tax Return that relates to any Taxes attributable
to a Danaher Disqualifying Action shall be prepared by Danaher in the manner determined by Danaher in its sole discretion (or, if such Tax Return is required to be prepared by Newco, be prepared by Newco in the manner determined by Danaher in its
sole discretion), and (ii) the portion of any Tax Return that relates to any Taxes attributable to a Newco Disqualifying Action shall be prepared by Newco in the manner determined by Newco in its sole discretion (or, if such Tax Return is
required to be prepared by Danaher, be prepared by Danaher in the manner determined by Newco in its sole discretion). For the avoidance of doubt, the foregoing sentence shall apply only to the extent that the Parties shall be aware of the Danaher
Disqualifying Action or the Newco Disqualifying Action at the time such Tax Return is prepared. 
 Section 2.05 Straddle Period Tax
Allocation. Danaher and Newco shall take all actions necessary or appropriate to close the taxable year of Newco and each Newco Entity for all Tax purposes as of the close of the Closing Date to the extent permissible or required under
applicable Law. If applicable Law does not require or permit Newco or a Newco Entity, as the case may be, to close its taxable year on the Closing Date, then the allocation of income or deductions required to determine any Taxes or other amounts
attributable to the portion of the Straddle Period ending on, or beginning after, the Closing Date shall be made by means of a closing of the books and records of Newco or such Newco Entity as of the close of the Closing Date; provided that
exemptions, allowances or deductions that are calculated on an annual or periodic basis shall be allocated between such portions in proportion to the number of days in each such portion; provided, further, that real property and other
property or similar periodic Taxes shall be apportioned on a per diem basis. 
 Section 2.06 Timing of Payments. All Taxes
required to be paid or caused to be paid pursuant to this Article II by either Danaher or a Danaher Entity or Newco or a Newco Entity, as the case may be, to an applicable Taxing Authority or reimbursed by Danaher or Newco to the

  
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other Party pursuant to this Agreement, shall, in the case of a payment to a Taxing Authority, be paid on or before the Due Date for the payment of such Taxes and, in the case of a reimbursement
to the other Party, be paid at least two (2) business days before the Due Date for the payment of such Taxes by the other Party. 

Section 2.07 Expenses. Except as provided in Section 8.01 in respect of the Accounting Firm, each Party shall bear its own
expenses incurred in connection with this Article II. 
 Section 2.08 Apportionment of Newco Taxes. For all purposes of this
Agreement, but subject to Section 4.03, Danaher shall determine in good faith which Tax Items are properly attributable to assets or activities of the Communications Business (and in the case of a Tax Item that is properly attributable to both
the Communications Business and the Danaher Business, the allocation of such Tax Item between the Communications Business and the Danaher Business). To the extent that Newco may in good faith disagree with any such apportionment, any disputes shall
be resolved by the Accounting Firm in accordance with Section 8.01. 
 ARTICLE III 

INDEMNIFICATION 

Section 3.01 Indemnification by Danaher. Danaher shall pay, and shall indemnify and hold Newco harmless from and against, without
duplication, (a) all Danaher Taxes, (b) all Taxes incurred by Newco or any Newco Entity by reason of the breach by Danaher of any of its representations, warranties or covenants hereunder, and (c) any costs and expenses related to the
foregoing (including reasonable attorneys’ fees and expenses). 
 Section 3.02 Indemnification by Newco. Newco shall pay,
and shall indemnify and hold Danaher harmless from and against, without duplication, (a) all Newco Taxes, (b) all Taxes incurred by Danaher or any Danaher Entity by reason of the breach by Newco of any of its representations, warranties or
covenants hereunder, and (c) any costs and expenses related to the foregoing (including reasonable attorneys’ fees and expenses). 

Section 3.03 Characterization of and Adjustments to Payments. 

(a) For all Tax purposes, Danaher and Newco agree to treat any payment required by this Agreement (other than payments with respect to
interest accruing after the Closing Date) as either a contribution by Danaher to Newco or a distribution by Newco to Danaher, as the case may be, occurring immediately prior to the Closing Date. 

(b) Notwithstanding the foregoing, any payment made pursuant to Article III of this Agreement shall be (i) decreased to take into account
the present value of any Tax Benefit made allowable to the Indemnified Party (or any of its affiliates) arising from the incurrence or payment of the relevant indemnified item (which Tax Benefit would not have arisen or been allowable but for such
indemnified item), and (ii) increased to take into account any Tax Cost of the Indemnified Party (or any of its affiliates) arising from the receipt of the relevant indemnity payment (but taking into account the present value of all correlative
Tax Benefits resulting from the payment of such Tax Cost). For purposes of this Section 3.03(b), any Tax Benefit or Tax 

  
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Cost, as applicable, shall be determined (i) using the highest marginal rates in effect at the time of the determination, (ii) assuming the Indemnified Party will be liable for such
Taxes at such rate and has no Tax Attributes at the time of the determination, and (iii) assuming that any such Tax Benefit is used at the earliest date allowable by applicable Law. The present value referred to in the first sentence of this
Section 3.03(b) shall be determined using a discount rate equal to the mid term applicable federal rate in effect at the time of the payment of the relevant indemnity payment. 

Section 3.04 Timing of Indemnification Payments. Indemnification payments in respect of any liabilities for which an Indemnified
Party is entitled to indemnification pursuant to this Article III shall be paid by the Indemnifying Party to the Indemnified Party within ten (10) days after written notification thereof by the Indemnified Party, including reasonably
satisfactory documentation setting forth the basis for, and calculation of, the amount of such indemnification payment. 
 ARTICLE IV

 REFUNDS, CARRYBACKS, TIMING DIFFERENCE AND TAX ATTRIBUTES 

Section 4.01 Refunds and Credits. 

(a) Except as provided in Section 4.02, Danaher shall be entitled to all Refunds of Taxes for which Danaher is responsible pursuant to
Article III, and Newco shall be entitled to all Refunds of Taxes for which Newco is responsible pursuant to Article III. For the avoidance of doubt, to the extent that a particular Refund of Taxes may be allocable to a Straddle Period with
respect to which the Parties may share responsibility pursuant to Article III, the portion of such Refund to which each Party will be entitled shall be determined by comparing the amount of payments made by a Party to a Taxing Authority or to the
other Party (and reduced by the amount of payments received from the other Party) pursuant to Articles II and III hereof with the Tax liability of such Party as determined under Section 2.08, taking into account the facts as utilized for
purposes of claiming such Refund. A Party receiving a Refund to which the other Party is entitled pursuant to this Agreement shall pay the amount to which such other Party is entitled within ten (10) days after the receipt of the Refund. 

(b) In the event of an Adjustment relating to Taxes for which one Party is responsible pursuant to Article III which would have given rise to
a Refund but for an offset against the Taxes for which the other Party is or may be responsible pursuant to Article III (the “Benefited Party”), then the Benefited Party shall pay to the other Party, within ten (10) days
of the Final Determination of such Adjustment an amount equal to the amount of such reduction in the Taxes of the Benefited Party plus interest at the rate set forth in Section 6621(a)(1) on such amount for the period from the filing date
of the Tax Return that would have given rise to such Refund to the payment date. 
 (c) Notwithstanding Section 4.01(a), to the extent
that a Party applies or causes to be applied an overpayment of Taxes as a credit toward or a reduction in Taxes otherwise payable (or a Taxing Authority requires such application in lieu of a Refund) and such overpayment of Taxes, if received as a
Refund, would have been payable by such Party to the 

  
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other Party pursuant to this Section 4.01, such Party shall pay such amount to the other Party no later than the Due Date of the Tax Return for which such overpayment is applied to reduce
Taxes otherwise payable. 
 (d) If Newco or any of its Subsidiaries receives a Refund attributable to Restructuring VAT, or otherwise
utilizes the benefits of a payment of Restructuring VAT (including by way of credit), Newco shall pay, or cause to be paid, to Danaher, within ten (10) days of the receipt of any such Refund or the filing of the Tax Return utilizing any such
benefit the amount of such Restructuring VAT to the extent of such Refund, credit or other benefit. For purposes of determining whether Newco or any of its Subsidiaries have received such a Refund, credit or otherwise utilized the benefits of a
payment of Restructuring VAT, any refund, credit or other benefit received by Newco or its Subsidiaries shall be considered to be attributable to Restructuring VAT prior to any refund, credit or other benefit being considered to be attributable to
other payments of VAT. Newco agrees to claim any refund, offset, credit or other allowance attributable to Restructuring VAT as soon as reasonably possible and to furnish to Danaher at Danaher’s request all information, records and assistance
reasonably necessary to verify the amount of any such refund, offset, credit or other allowance. 
 (e) To the extent that the amount of any
Refund under this Section 4.01 is later reduced by a Taxing Authority or in a Tax Proceeding, such reduction shall be allocated to the Party to which such Refund was allocated pursuant to this Section 4.01 and an appropriate adjusting
payment shall be made. 
 (f) Notwithstanding anything to the contrary in this Agreement, neither Danaher nor Newco shall be required to pay
or cause to be paid any Refund to the other Party pursuant to this Section 4.01 if the amount of such Refund is less than $50,000. 

Section 4.02 Carrybacks. 

(a) The carryback of any loss, credit or other Tax Attribute from any Post-Closing Period shall be in accordance with the provisions of the
Code and Treasury Regulations (and any applicable state, local or foreign Laws). 
 (b) Except to the extent otherwise consented to by
Danaher or prohibited by applicable Law, Newco shall elect to relinquish, waive or otherwise forgo the carryback of any loss, credit or other Tax Attribute from any Post-Closing Period to any Pre-Closing Period or Straddle Period (a
“Carryback”). In the event that Newco (or the appropriate member of the Newco Group) is prohibited by applicable Law to relinquish, waive or otherwise forgo a Carryback (or Danaher consents to a Carryback), Danaher shall cooperate
with Newco, at Newco’s expense, in seeking from the appropriate Taxing Authority such Refund as reasonably would result from such Carryback, to the extent that such Refund is directly attributable to such Carryback, and shall pay over to Newco
the amount of such Refund, net of any Taxes imposed on the receipt of such Refund, within ten (10) days after such Refund is received; provided, however, that Newco shall indemnify and hold the members of the Danaher Group
harmless from and against any and all collateral Tax consequences resulting from or caused by any such Carryback, including, without limitation, the loss or postponement of any benefit from the use of Tax Attributes generated by a member of the
Danaher Group if (i) such Tax Attributes expire 

  
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unutilized, but would have been utilized but for such Carryback, or (ii) the use of such Tax Attributes is postponed to a later taxable period than the taxable period in which such Tax
Attributes would have been utilized but for such Carryback. 
 Section 4.03 Tax Attributes. 

(a) Danaher shall reasonably determine in good faith the allocation of Tax Attributes arising in a Pre-Closing Period to the Danaher Group and
the Newco Group in accordance with the Code and Treasury Regulations. Danaher shall be entitled to make any determination as to (A) basis, and (B) valuation, and shall make such determinations reasonably and in good faith and consistent
with Past Practice, where applicable. Danaher shall consult in good faith with NetScout regarding such allocation of Tax Attributes and determinations as to basis and valuation, and shall incorporate any reasonable comments received in writing from
NetScout regarding such allocation and determinations. Danaher and Newco hereby agree to compute all Taxes for Post-Closing Periods consistently with the determination of the allocation of Tax Attributes pursuant to this Section 4.03(a) unless
otherwise required by a Final Determination. 
 (b) To the extent that the amount of any Tax Attribute is later reduced or increased by a
Taxing Authority or Tax Proceeding, such reduction or increase shall be allocated to the Party to which such Tax Attribute was allocated pursuant to Section 4.03(a). 

Section 4.04 Treatment of Deductions Associated with Equity-Related Compensation. 

(a) Unless otherwise prohibited by applicable Law, from and after the Closing Date, solely Danaher or any member of the Danaher Group, as the
case may be, shall be entitled to claim any Tax deduction associated with the exercise in any taxable period of any Danaher stock options or stock appreciation rights by any Newco Employee. 

(b) “Newco Employee” means any person employed or formerly employed by any member of the Newco Group at the time of the
exercise, vesting, settlement disqualifying disposition or payment, as appropriate. 
 Section 4.05 Timing Differences. If
pursuant to a Final Determination any Tax Benefit is made allowable to a member of the Newco Group as a result of an Adjustment to any Taxes for which a member of the Danaher Group is responsible hereunder (or Tax Attribute of a member of the
Danaher Group) and such Tax Benefit would not have arisen or been allowable but for such Adjustment, or if pursuant to a Final Determination any Tax Benefit is made allowable to a member of the Danaher Group as a result of an Adjustment to any Taxes
for which a member of the Newco Group is responsible hereunder (or Tax Attribute of a member of the Newco Group) and such Tax Benefit would not have arisen or been allowable but for such Adjustment, Newco or Danaher, as the case may be, shall make a
payment to either Danaher or Newco, as appropriate, within thirty (30) days following such Final Determination, in an amount equal to the present value of such Tax Benefit (including any Tax Benefit made allowable as a result of the payment)
determined (i) using the highest marginal rates in effect at the time of the determination, (ii) assuming the Party to which such Tax Benefit is made allowable will be liable for Taxes at such rate and has no Tax Attributes at the time of
the determination, and (iii) 

  
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assuming that the Tax Benefit is used at the earliest date allowable by applicable Law. The present value referred to in the preceding sentence shall be determined using a discount rate equal to
the mid term applicable federal rate in effect at the time of the Final Determination. 
 ARTICLE V 

TAX PROCEEDINGS 

Section 5.01 Notification of Tax Proceedings. Within ten (10) days after an Indemnified Party becomes aware of the
commencement of a Tax Proceeding that may give rise to Taxes for which an Indemnifying Party is responsible pursuant to Article III, such Indemnified Party shall notify the Indemnifying Party of such Tax Proceeding, and thereafter shall
promptly forward or make available to the Indemnifying Party copies of notices and communications relating to such Tax Proceeding. The failure of the Indemnified Party to notify the Indemnifying Party of the commencement of any such Tax Proceeding
within such ten (10) day period or promptly forward any further notices or communications shall not relieve the Indemnifying Party of any obligation which it may have to the Indemnified Party under this Agreement except to the extent that the
Indemnifying Party is actually prejudiced by such failure. 
 Section 5.02 Tax Proceeding Procedures Generally. 

(a) Tax Proceedings relating to Danaher Consolidated Returns, Mixed Business U.S. Income Tax Returns and Single Business U.S. Income Tax
Returns. 
 (i) Except as provided in Section 5.03, Danaher shall be entitled to contest, compromise and settle any
Adjustment proposed, asserted or assessed pursuant to any Tax Proceeding with respect to any Danaher Consolidated Return, Mixed Business U.S. Income Tax Return, or Single Business Return required to be prepared by Danaher or a Danaher Entity
pursuant to Section 2.01, and any such defense shall be made diligently and in good faith; provided that to the extent that such Tax Proceeding could materially affect the amount of Taxes for which Newco is responsible pursuant to
Article III, Danaher (A) shall keep Newco informed in a timely manner of all actions proposed to be taken by Danaher with respect to such Tax Proceeding (or to the extent practicable the portion of such Tax Proceeding that relates to Taxes for
which Newco is responsible pursuant to Article III) and (B), shall permit Newco to participate in all proceedings with respect to such Tax Proceeding (or to the extent practicable the portion of such Tax Proceeding that relates to Taxes for which
Newco is responsible pursuant to Article III) and shall not settle any such Tax Proceeding without the prior written consent of Newco, which shall not be unreasonably withheld, delayed or conditioned. 

(ii) Except as provided in Section 5.03, Newco shall be entitled to contest, compromise and settle any Adjustment
proposed, asserted or assessed pursuant to any Tax Proceeding with respect to any Mixed Business U.S. Income Tax Return or Single Business Return required to be prepared by Newco or a Newco Entity pursuant to Section 2.01, and any such defense
shall be made diligently and in good faith; provided that to the extent that such Tax Proceeding could materially affect the amount of Taxes for which Danaher is responsible pursuant to Article III, Newco (A) shall keep Danaher

  
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informed in a timely manner of all actions proposed to be taken by Newco with respect to such Tax Proceeding (or to the extent practicable the portion of such Tax Proceeding that relates to Taxes
for which Danaher is responsible pursuant to Article III) and (B) shall permit Danaher to participate in all proceedings with respect to such Tax Proceeding (or to the extent practicable the portion of such Tax Proceeding that relates to Taxes
for which Danaher is responsible pursuant to Article III) and shall not settle any such Tax Proceeding without the prior written consent of Danaher, which shall not be unreasonably withheld, delayed or conditioned. 

(b) Tax Proceedings relating to Mixed Business Non-U.S. Income Tax Returns and Mixed Business Non-Income Tax Returns. The Preparing
Party with respect to any Mixed Business Non-U.S. Income Tax Return or Mixed Business Non-Income Tax Return shall be entitled to contest, compromise and settle any Adjustment proposed, asserted or assessed pursuant to any Tax Proceeding with respect
to such Tax Return and any such defense shall be made diligently and in good faith; provided that the Preparing Party shall (i) keep the Reviewing Party informed in a timely manner of all actions proposed to be taken by the Preparing
Party with respect to such Tax Proceeding and, (ii) to the extent such Tax Proceeding could materially affect the amount of Taxes for which the Reviewing Party is responsible pursuant to Article III, shall permit the Reviewing Party to
participate in all proceedings with respect to such Tax Proceeding (or to the extent practicable the portion of such Tax Proceeding that relates to Taxes for which the Reviewing Party is responsible pursuant to Article III) and shall not settle any
such Tax Proceeding without the prior written consent of the Reviewing Party, which shall not be unreasonably withheld, delayed or conditioned. 

(c) Tax Proceedings relating to Single Business Returns. Except as provided in Sections 5.02(a) and 5.03, the Indemnifying Party
shall be entitled to contest, compromise and settle any Adjustment proposed, asserted or assessed pursuant to any Tax Proceeding with respect to any Single Business Return for which the Indemnifying Party is responsible pursuant to Article III and
any such defense shall be made diligently and in good faith; provided, that the Indemnifying Party shall keep the Indemnified Party informed in a timely manner of all actions proposed to be taken by the Indemnifying Party and shall permit the
Indemnified Party to participate in all proceedings with respect to such Tax Proceeding. 
 Section 5.03 Tax Proceedings in respect
of Disqualifying Actions. 
 (a) Danaher and Newco shall be entitled to jointly contest, compromise and settle any Adjustment proposed,
asserted or assessed pursuant to any Tax Proceeding relating to any Taxes attributable to a Newco Disqualifying Action. 
 (b) Danaher shall
be entitled to contest, compromise and settle any Adjustment proposed, asserted or assessed pursuant to any Tax Proceeding relating to any Taxes attributable to a Danaher Disqualifying Action; provided, that Danaher shall keep Newco informed
in a timely manner of all actions proposed to be taken by Danaher and shall permit Newco to participate in all proceedings with respect to such Tax Proceeding. 

  
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 ARTICLE VI 

TAX-FREE STATUS OF THE DISTRIBUTION 

Section 6.01 Representations and Warranties. 

(a) Newco. Newco hereby represents and warrants or covenants and agrees, as appropriate, that the facts presented and the
representations made in (i) the IRS Ruling, (ii) the Opinions, (iii) each submission to the IRS in connection with the IRS Ruling Request, (iv) the representation letter from Danaher addressed to Counsel supporting the Opinions,
(v) the representation letter from Newco addressed to Counsel supporting the Opinions and (vi) any other materials delivered or deliverable by Danaher or Newco in connection with the rendering by Counsel of the Opinions and the issuance by
the IRS of the IRS Ruling (all of the foregoing, collectively, the “Tax Materials”), to the extent they both (A) are descriptive of the Newco Group (including the business purposes for each of the distributions described in the
IRS Ruling Request and the other Tax Materials to the extent that they relate to the Newco Group and the plans, proposals, intentions and policies of the Newco Group after the Effective Time), and (B) relate to the actions or non-actions of the
Newco Group to be taken (or not taken, as the case may be) after the Effective Time, are, or will be from the time presented or made through and including the Effective Time (and thereafter as relevant) true, correct and complete in all respects.

 (b) Danaher. Danaher hereby represents and warrants or covenants and agrees, as appropriate, that (i) it has delivered
complete and accurate copies of the Tax Materials to Newco and NetScout and (ii) the facts presented and the representations made therein, to the extent descriptive of (A) the Danaher Group at any time or (B) the Newco Group at any
time at or prior to the Effective Time (including, in each case, (x) the business purposes for each of the distributions described in the IRS Ruling Request and the other Tax Materials to the extent that they relate to the Danaher Group at any
time or the Newco Group at any time at or prior to the Effective Time, and (y) the plans, proposals, intentions and policies of the Danaher Group at any time or the Newco Group at any time at or prior to the Effective Time), are, or will be
from the time presented or made through and including the Effective Time (and thereafter as relevant) true, correct and complete in all respects. 

(c) No Contrary Knowledge. Each of Danaher and Newco represents and warrants that it knows of no fact (after due inquiry) that may
cause the Tax treatment of the Restructuring or the Distribution to be other than the Tax-Free Status of the Transactions. 
 (d) No
Contrary Plan. Each of Danaher and Newco represents and warrants that neither it, nor any of its Subsidiaries, has any plan or intent to take any action which is inconsistent with any statements or representations made in the Tax Materials. 

Section 6.02 Restrictions Relating to the Distribution. 

(a) General. Neither Danaher nor Newco shall, nor shall Danaher or Newco permit, any Danaher Entity or any Newco Entity, respectively,
to take or fail to take, as applicable, any action that constitutes a Disqualifying Action described in the definitions of Danaher Disqualifying Action and Newco Disqualifying Action, respectively. 

  
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 (b) Restrictions. Prior to the first day following the second anniversary of the
Distribution (the “Restriction Period”), Newco: 
 (i) shall continue and cause to be continued the active
conduct of the Communications Business, in each case taking into account Section 355(b)(3) of the Code, in all cases as conducted immediately prior to the Distribution; 

(ii) shall not voluntarily dissolve or liquidate itself or any Newco Entity (including any action that is a liquidation for
federal income tax purposes); 
 (iii) shall not (1) enter into any Proposed Acquisition Transaction or, to the extent
Newco has the right to prohibit any Proposed Acquisition Transaction, permit any Proposed Acquisition Transaction to occur, (2) redeem or otherwise repurchase (directly or through a Subsidiary) any stock, or rights to acquire stock, other than
repurchases satisfying the requirements of Section 4.05(1)(b) of Revenue Procedure 96-30, 1996-1 C.B. 696 (as in effect prior to the release of Revenue Procedure 2003-48, 2003-2 C.B. 86), (3) amend its certificate of incorporation (or
other organizational documents), or take any other action, whether through a stockholder vote or otherwise, affecting the relative voting rights of its capital stock (including through the conversion of any capital stock into another class of
capital stock), (4) merge or consolidate with any other Person (other than pursuant to the Merger and the LLC Merger) or (5) take any other action or actions (including any action or transaction that would be reasonably likely to be
inconsistent with any representation made in the Tax Materials), in each case which in the aggregate (and taking into account the Merger, the LLC Merger and any other transactions described in this Section 6.02(b)(iii)) would, when combined
with any other direct or indirect changes in ownership of Newco capital stock pertinent for purposes of Section 355(e) of the Code (including the Merger and the LLC Merger), have the effect of causing or permitting one or more Persons (whether
or not acting in concert) to acquire directly or indirectly stock representing a Fifty-Percent or Greater Interest in Newco or would reasonably be expected to result in a failure to preserve the Tax-Free Status of the Transactions; and 

(iv) shall not, and shall not permit any member of the Newco Group, to sell, transfer, or otherwise dispose of or agree to,
sell, transfer or otherwise dispose (including in any transaction treated for federal income tax purposes as a sale, transfer or disposition) of assets (including, any shares of capital stock of a Subsidiary) that, in the aggregate, constitute more
than 25% of the consolidated gross assets of Newco or the Newco Group. The foregoing sentence shall not apply to (1) sales, transfers, or dispositions of assets in the Ordinary Course of Business, (2) any cash paid to acquire assets from
an unrelated Person in an arm’s-length transaction, (3) any assets transferred to a Person that is disregarded as an entity separate from the transferor for federal income tax purposes or (4) any mandatory or optional repayment (or
pre-payment) of any indebtedness of Newco or any member of the Newco Group. The percentages of gross assets or consolidated gross assets of Newco or the Newco Group, as the case may be, 

  
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sold, transferred, or otherwise disposed of, shall be based on the fair market value of the gross assets of Newco and the members of the Newco Group as of the Closing Date. For purposes of this
Section 6.02(b)(iv), a merger of Newco or one of its Subsidiaries with and into any Person that is not a wholly owned Subsidiary of Newco or NetScout shall constitute a disposition of all of the assets of Newco or such Subsidiary. 

(c) Notwithstanding the restrictions imposed by Section 6.02(b), during the Restriction Period, Newco may proceed with any of the actions
or transactions described therein, if (i) Newco shall first have requested Danaher to obtain a supplemental ruling in accordance with Section 6.03(a) to the effect that such action or transaction will not affect the Tax-Free Status of the
Transactions and Danaher shall have received such a supplemental ruling in form and substance reasonably satisfactory to it, (ii) Newco shall have provided to Danaher an Unqualified Tax Opinion in form and substance reasonably satisfactory to
Danaher, or (iii) Danaher shall have waived in writing the requirement to obtain such ruling or opinion. For the avoidance of doubt, the presence of a supplemental ruling, an Unqualified Tax Opinion or a waiver from Danaher shall not relieve
Newco from indemnification obligations otherwise present under Article III of this Agreement. In determining whether a ruling or opinion is satisfactory, Danaher may consider, among other factors, the appropriateness of any underlying assumptions or
representations used as a basis for the ruling or opinion and the views on the substantive merits. 
 (d) Tax Reporting. Each of
Danaher and Newco covenants and agrees that it will not take, and will cause its respective Subsidiaries to refrain from taking, any position on any Income Tax Return that is inconsistent with the Tax-Free Status of the Transactions. 

(e) For the avoidance of the doubt, notwithstanding the restrictions set forth in this Section 6.02, (i) Newco shall be permitted to
enter into the Merger and the LLC Merger, (ii) Merger Sub II shall be permitted to liquidate or merge with and into NetScout, (iii) Newco may adopt or modify a shareholder rights plan (and issue stock in accordance therewith) that is
described in or similar to the shareholder rights plan described in Revenue Ruling 90-11, 1990-1 C.B. 10. 
 Section 6.03 Procedures
Regarding Opinions and Rulings. 
 (a) If Newco notifies Danaher that it desires to take one of the actions described in
Section 6.02(b) (a “Notified Action”), Danaher shall cooperate with Newco and use its reasonable best efforts to seek to obtain a supplemental ruling from the IRS or an Unqualified Tax Opinion for the purpose of permitting
Newco to take the Notified Action unless Danaher shall have waived the requirement to obtain such ruling or opinion. If such a ruling is to be sought, Danaher shall apply for such ruling and Danaher and Newco shall jointly control the process of
obtaining such ruling. In no event shall Danaher be required to file any ruling request under this Section 6.03(a) unless Newco represents that (i) it has read such ruling request, and (ii) all information and representations, if any,
relating to any member of the Newco Group, contained in such ruling request documents are (subject to any qualifications therein) true, correct and complete. Newco shall reimburse Danaher for all reasonable costs and expenses incurred by the Danaher
Group in obtaining or seeking to obtain a ruling or Unqualified Tax Opinion requested by Newco within ten (10) days after receiving an invoice from Danaher therefor. 

  
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 (b) Danaher shall have the right to obtain a supplemental ruling or an Unqualified Tax Opinion at
any time in its sole and absolute discretion. If Danaher determines to obtain such ruling or opinion, Newco shall (and shall cause each Newco Entity to) cooperate with Danaher and take any and all actions reasonably requested by Danaher in
connection with obtaining such ruling or opinion (including by making any representation or reasonable covenant or providing any materials requested by the IRS or the law firm issuing such opinion); provided, that Newco shall not be required
to make (or cause a Newco Entity to make) any representation or covenant that is untrue or inconsistent with historical facts, or as to future matters or events over which it has no control. In connection with obtaining such ruling, Danaher shall
apply for such ruling and shall have sole and exclusive control over the process of obtaining such ruling. Danaher shall reimburse Newco for all reasonable costs and expenses incurred by the Newco Group in cooperating with Danaher’s efforts to
obtain a supplemental ruling or Unqualified Tax Opinion within ten (10) days after receiving an invoice from Newco therefor. 
 (c)
Except as provided in Sections 6.03(a) and (b), following the Effective Time, neither Newco nor any Newco Subsidiary shall seek any guidance from the IRS or any other Taxing Authority (whether written, verbal or otherwise) at any time
concerning the Restructuring or the Distribution (including the impact of any transaction on the Restructuring or Distribution). 

ARTICLE VII 

COOPERATION 

Section 7.01 General Cooperation. 

(a) The Parties shall each cooperate fully (and each shall cause its respective Subsidiaries to cooperate fully) with all reasonable requests
in writing (“Information Request”) from another Party hereto, or from an agent, representative or advisor to such Party, in connection with the preparation and filing of Tax Returns (including the preparation of Tax Packages),
claims for Refunds, Tax Proceedings, and calculations of amounts required to be paid pursuant to this Agreement, in each case, related or attributable to or arising in connection with Taxes of any of the Parties or their respective Subsidiaries
covered by this Agreement and the establishment of any reserve required in connection with any financial reporting (a “Tax Matter”). Such cooperation shall include the provision of any information reasonably necessary or helpful in
connection with a Tax Matter (“Information”) and shall include, without limitation, at each Party’s own cost: 

(i) the provision of any Tax Returns of the Parties and their respective Subsidiaries, books, records (including information
regarding ownership and Tax basis of property), documentation and other information relating to such Tax Returns, including accompanying schedules, related work papers, and documents relating to rulings or other determinations by Taxing Authorities
(or, in the case of any Danaher Consolidated Return or Mixed Business Income Tax Return to the extent practicable, the portion of such Tax Return that relates to Taxes for which Newco is responsible pursuant to this Agreement); 

  
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 (ii) the execution of any document (including any power of attorney) in
connection with any Tax Proceedings of any of the Parties or their respective Subsidiaries, or the filing of a Tax Return or a Refund claim of the Parties or any of their respective Subsidiaries; 

(iii) the use of the Party’s reasonable best efforts to obtain any documentation in connection with a Tax Matter; and 

(iv) the use of the Party’s reasonable best efforts to obtain any Tax Returns (including accompanying schedules, related
work papers, and documents), documents, books, records or other information in connection with the filing of any Tax Returns of any of the Parties or their Subsidiaries (or, in the case of any Danaher Consolidated Return or Mixed Business Income Tax
Return to the extent practicable, the portion of such Tax Return, documents, books, records or other information that relates to Taxes for which Newco is responsible pursuant to this Agreement). 

Each Party shall make its employees, advisors, and facilities available, without charge, on a reasonable and mutually convenient basis in
connection with the foregoing matters. 
 Section 7.02 Retention of Records. Danaher and Newco shall retain or cause to be
retained all Tax Returns, schedules and work papers, and all material records or other documents relating thereto in their possession, in each case that relate to a Pre-Closing Period, until seven years following the Closing Date (the
“Retention Date”). After the Retention Date, a Party intending to destroy any material records or documents shall provide the other Party with ninety (90) days’ prior written notice and the opportunity to copy or take
possession of such records and documents. If, prior to the Retention Date, a Party reasonably determines that any records or documents that it would otherwise be required to preserve and keep under this Section 7.02 are no longer material in
the administration of any matter under the Code or other applicable Tax Law and the other Party agrees, then such first Party may dispose of such records or documents upon ninety (90) days’ prior notice to the other Party. Any notice of an
intent to dispose given pursuant to this Section 7.02 shall include a list of the records or documents to be disposed of describing in reasonable detail each file, book, or other record being disposed. The notified Party shall have the
opportunity, at its cost and expense, to copy take possession of such records and documents. 
 ARTICLE VIII 

MISCELLANEOUS 

Section 8.01 Dispute Resolution. In the event of any dispute between the Parties as to any matter covered by this Agreement, the
parties shall appoint a nationally recognized independent public accounting firm (the “Accounting Firm”) to resolve such dispute. In this regard, the Accounting Firm shall make determinations with respect to the disputed items based
solely on representations made by Danaher and Newco and their respective representatives, and 

  
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not by independent review, and shall function only as an expert and not as an arbitrator and shall be required to make a determination in favor of one Party only. The Parties shall require the
Accounting Firm to resolve all disputes no later than thirty (30) days after the submission of such dispute to the Accounting Firm, but in no event later than the Due Date for the payment of Taxes or the filing of the applicable Tax Return, if
applicable, and agree that all decisions by the Accounting Firm with respect thereto shall be final and conclusive and binding on the Parties. The Accounting Firm shall resolve all disputes in a manner consistent with this Agreement and, to the
extent not inconsistent with this Agreement, in a manner consistent with the Past Practices of Danaher and its Subsidiaries, except as otherwise required by applicable Law. The Parties shall require the Accounting Firm to render all determinations
in writing and to set forth, in reasonable detail, the basis for such determination. The fees and expenses of the Accounting Firm shall be borne equally by the Parties. 

Section 8.02 Interest on Late Payments. With respect to any payment between the Parties pursuant to this Agreement not made by the
due date set forth in this Agreement for such payment, the outstanding amount will accrue interest at a rate per annum equal to the rate in effect for underpayments under Section 6621 of the Code from such due date to and including the payment
date. 
 Section 8.03 Survival of Covenants. Except as otherwise contemplated by this Agreement, all covenants and agreements of
the Parties contained in this Agreement shall survive the Effective Time and remain in full force and effect in accordance with their applicable terms. 

Section 8.04 Successors. This Agreement shall be binding on and inure to the benefit of any successor by merger, acquisition of
assets, or otherwise, to any of the parties hereto (including without limitation any successor of Danaher or Newco succeeding to the Tax Attributes of either under Section 381 of the Code), to the same extent as if such successor had been an
original party to this Agreement. As of the Effective Time, this Agreement shall be binding on NetScout and NetScout shall be subject to the obligations and restrictions imposed on Newco hereunder, including, without limitation, with respect to the
restrictions imposed on Newco under Section 6.02, and for the avoidance of doubt any restrictions applicable to Newco shall apply to NetScout mutatis mutandis. 

Section 8.05 Severability. If any term or other provision of this Agreement is invalid, illegal or incapable of being enforced
under any Law or as a matter of public policy, all other conditions and provisions of this Agreement shall remain in full force and effect. Upon such determination that any term or other provision is invalid, illegal or incapable of being enforced,
the Parties to this Agreement shall negotiate in good faith to modify this Agreement so as to effect the original intent of the Parties as closely as possible in a mutually acceptable manner. 

Section 8.06 Entire Agreement. Except as otherwise expressly provided in this Agreement, this Agreement constitutes the entire
agreement of the Parties hereto with respect to the subject matter of this Agreement and supersedes all prior agreements and undertakings, both written and oral, between or on behalf of the Parties hereto with respect to the subject matter of this
Agreement. 

  
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 Section 8.07 Assignment; No Third-Party Beneficiaries. This Agreement shall not be
assigned by any Party without the prior written consent of the other Parties hereto, except that each Party may assign (a) any or all of its rights and obligations under this Agreement to any of its Subsidiaries and (b) any or all of its
rights and obligations under this Agreement in connection with a sale or disposition of any of its assets or entities or lines of business; provided, however, that, in each case, no such assignment shall release such Party from any
liability or obligation under this Agreement. Except as provided in Article III with respect to indemnified Parties, this Agreement is for the sole benefit of the Parties to this Agreement and their respective Subsidiaries and their permitted
successors and assigns and nothing in this Agreement, express or implied, is intended to or shall confer upon any other Person any legal or equitable right, benefit or remedy of any nature whatsoever under or by reason of this Agreement. 

Section 8.08 Specific Performance. In the event of any actual or threatened default in, or breach of, any of the terms, conditions
and provisions of this Agreement, the Party who is or is to be thereby aggrieved shall have the right to specific performance and injunctive or other equitable relief of its rights under this Agreement, in addition to any and all other rights and
remedies at law or in equity, and all such rights and remedies shall be cumulative. The Parties agree that the remedies at law for any breach or threatened breach, including monetary damages, may be inadequate compensation for any loss and that any
defense in any action for specific performance that a remedy at law would be adequate is waived. Any requirements for the securing or posting of any bond with such remedy are waived by the Parties to this Agreement. 

Section 8.09 Amendment. No provision of this Agreement may be amended or modified except by a written instrument signed by the
Parties to this Agreement. No waiver by any Party of any provision of this Agreement shall be effective unless explicitly set forth in writing and executed by the Party so waiving. The waiver by any Party of a breach of any provision of this
Agreement shall not operate or be construed as a waiver of any other subsequent breach. 
 Section 8.10 Rules of Construction.
Interpretation of this Agreement shall be governed by the following rules of construction: (a) words in the singular shall be held to include the plural and vice versa and words of one gender shall be held to include the other gender as the
context requires; (b) references to the terms Article, Section, paragraph, clause, Exhibit and Schedule are references to the Articles, Sections, paragraphs, clauses, exhibits and schedules of this Agreement unless otherwise specified;
(c) the terms “hereof,” “herein,” “hereby,” “hereto,” and derivative or similar words refer to this entire Agreement, including the Schedules and Exhibits hereto; (d) references to “$”
shall mean U.S. dollars; (e) the word “including” and words of similar import when used in this Agreement shall mean “including without limitation,” unless otherwise specified; (f) the word “or” shall not be
exclusive; (g) references to “written” or “in writing” include in electronic form; (h) provisions shall apply, when appropriate, to successive events and transactions; (i) the headings contained in this Agreement
are for reference purposes only and shall not affect in any way the meaning or interpretation of this Agreement; (j) Danaher and Newco have each participated in the negotiation and drafting of this Agreement and if an ambiguity or question of
interpretation should arise, this Agreement shall be construed as if drafted jointly by the parties hereto and no presumption or burden of proof shall arise favoring or burdening either Party by virtue of the authorship of any of the provisions in
this Agreement or any interim drafts of this Agreement; and (k) a reference to any Person includes such Person’s successors and permitted assigns. 

  
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 Section 8.11 Counterparts. This Agreement may be executed in one or more counterparts
each of which when executed shall be deemed to be an original but all of which taken together shall constitute one and the same agreement. Delivery of an executed counterpart of a signature page to this Agreement by facsimile or portable document
format (PDF) shall be as effective as delivery of a manually executed counterpart of any such Agreement. 
 Section 8.12
Coordination with the Employee Matters Agreement. To the extent any covenants or agreements between the Parties with respect to employee withholding Taxes are set forth in the Employee Matters Agreement, such Taxes shall be governed
exclusively by the Employee Matters Agreement and not by this Agreement. 
 Section 8.13 Confidentiality. The parties hereby
agree that the provisions of the Confidentiality Agreement shall apply to all information and material furnished by any party or its representatives hereunder (including any Information and any Tax Returns). 

Section 8.14 Expenses. Except as otherwise provided in this Agreement, whether or not the Distribution or the other transactions
contemplated by this Agreement are consummated, all costs and expenses incurred in connection with this Agreement and the transactions contemplated hereby shall be paid by the Party incurring such costs or expenses. For the avoidance of doubt, all
liabilities, costs and expenses incurred in connection with this Agreement by or on behalf of Newco or any member of the Newco Group prior to the Effective Time shall be the responsibility of Danaher and shall be assumed in full by Danaher. 

Section 8.15 Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of
Delaware, without giving effect to any choice or conflict of law provision or rule (whether of the State of Delaware or any other jurisdiction) that would cause the application of the laws of any jurisdiction other than the State of Delaware. 

Section 8.16 Notices. Any notice, demand, claim or other communication under this Agreement will be in writing and will be deemed
to have been given (a) on delivery if delivered personally; (b) on the date on which delivery thereof is guaranteed by the carrier if delivered by a national courier guaranteeing delivery within a fixed number of days of sending; or
(c) on the date of facsimile transmission thereof if delivery is confirmed, but, in each case, only if addressed to the Parties in the following manner at the following addresses or facsimile numbers (or at the other address or other number as
a Party may specify by notice to the others): 
  

			
	If to: Danaher, to:
	
	c/o Danaher Corporation
	2200 Pennsylvania Ave., NW - Suite 800W
	Washington, DC 20037-1701
	Attn:	 	Attila Bodi
	Email:	 	attila.bodi@danaher.com
	Facsimile:	 	(202) 419-7676

  
 -27- 

			
	Attn:	 	Jonathan Schwarz
	Email:	 	jonathan.schwarz@danaher.com
	Facsimile:	 	(202) 419-7668
	
	with a copy to:
	
	 Skadden, Arps, Slate, Meagher & Flom LLP

Four Times Square

	New York, New York 10036
	Tel:	 	(212) 735-3000
	Attention:	 	Joseph A. Coco
		 	Thomas W. Greenberg
	E-mail:	 	joseph.coco@skadden.com
		 	thomas.greenberg@skadden.com
	Facsimile:	 	(917) 777-2000
	
	If to: NetScout or Newco, to:
	
	 NetScout Systems, Inc.
 310
Littleton Road

	Westford, Massachusetts 01886
	Attn: Anil K. Singhal, CEO
	Email: Anil.Singhal@netscout.com
	Facsimile:	 	(978) 614-4004
	
	with a copy to:
	
	 Baker & McKenzie LLP
 660
Hansen Way
 Palo Alto, CA 94304

	Attn:    Matthew Gemello
	Facsimile:	 	(650) 856-9299
	
	with an additional copy to:
	
	 Cooley LLP
 500 Boylston Street, 14th Floor
 Boston, Massachusetts 02116

	Tel:	 	(617) 937-2319
	Attention:	 	Miguel J. Vega and Barbara Borden
	E-mails:	 	mvega@cooley.com
		 	bborden@cooley.com
	Facsimile:	 	(617) 937-2400

  
 -28- 

 Any notice to Danaher will be deemed notice to all members of the Danaher Group, and any notice to Newco will be
deemed notice to all members of the Newco Group. 
 Section 8.17 Effective Date. This Agreement shall become effective only upon
the occurrence of the Distribution. 
 [The remainder of this page is intentionally left blank.] 

  
 -29- 

 IN WITNESS WHEREOF, the Parties have caused this Agreement to be duly executed as of the day and
year first above written. 
  

			
	Danaher Corporation
		
	By	 	  

	Name:	 	
	Title:	 	
	
	Potomac Holding LLC
		
	By	 	  

	Name:	 	
	Title:	 	
	
	NetScout Systems, Inc.
		
	By	 	  

	Name:	 	
	Title:

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