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GIAC GISF Exam - Topic 7 Question 90 Discussion

Actual exam question for GIAC's GISF exam

Question #: 90
Topic #: 7

[All GISF Questions]

Which of the following statements about Encapsulating Security Payload (ESP) are true?

Each correct answer represents a complete solution. Choose two.

AIt can also be nested with the Layer Two Tunneling Protocol (L2TP).

BIt is an IPSec protocol.

CIt is a text-based communication protocol.

DIt uses TCP port 22 as the default port and operates at the application layer.

Show Suggested Answer

Suggested Answer: A, B

by Marge at Jul 20, 2026, 10:24 PM

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Graham

4 days ago

B is definitely true, it's an IPSec protocol.

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Billi

9 days ago

I don’t think ESP uses TCP port 22; that’s for SSH, right? So option D seems wrong too.

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Phung

14 days ago

I’m pretty certain that ESP is not a text-based protocol, so option C should be false.

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Alona

19 days ago

I’m not sure about the nesting with L2TP, but I feel like I’ve seen that in practice questions before.

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Freeman

25 days ago

I think I remember that ESP is definitely part of IPSec, so option B seems correct.

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