Exhibit 24.1

                               POWER OF ATTORNEY

    Know all by these presents, that the undersigned hereby constitutes and
appoints each of Jeff Levinson, Jean Bua, Greg Sloan and Greg McIntosh, signing
individually, the undersigned's true and lawful attorneys-in fact and agents
to:

        (1)     execute for and on behalf of the undersigned, an officer,
director or holder of 10% of more of a registered class of securities of
NetScout Systems, Inc. (the "Company"), Forms 3, 4 and 5 in accordance with
Section 16(a) of the Securities Exchange Act of 1934, as amended (the "Exchange
Act") and the rules thereunder;

        (2)     do and perform any and all acts for and on behalf of the
undersigned that may be necessary or desirable to complete and execute such
Form 3, 4 or 5, complete and execute any amendment or amendments thereto, and
timely file such forms or amendments with the United States Securities and
Exchange Commission and any stock exchange or similar authority; and

        (3)     take any other action of any nature whatsoever in connection
with the foregoing which, in the opinion of such attorney-in-fact, may be of
benefit to, in the best interest of, or legally required of the undersigned, it
being understood that the documents executed by such attorney-in-fact on behalf
of the undersigned pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as such attorney-in-fact may approve in
such attorney-in-fact's discretion.

    The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might
or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney-in-fact, or
such attorney-in-fact's substitute or substitutes, shall lawfully do or cause
to be done by virtue of this power of attorney and the rights and powers herein
granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to
comply with Section 16 of the Exchange Act.

    This Power of Attorney shall remain in full force and effect until the
earliest to occur of (a) the undersigned is no longer required to file Forms 3,
4 and 5 with respect to the undersigned's holdings of and transactions in
securities issued by the Company, (b) revocation by the undersigned in a signed
writing delivered to the foregoing attorneys-in-fact or (c) as to any attorney-
in-fact individually, until such attorney-in-fact shall no longer be employed
by the Company.

    IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 25th day of January, 2023.

                                  /s/ Marlene Pelage
                                  -------------------------------
                                  Name: Marlene Pelage