Which of the following is NOT a component of IPSec?

A.
Authentication Header

B.
Encapsulating Security Payload

C.
Key Distribution Center

D.
Internet Key Exchange

Explanation:
A Key Distribution Center (KDC) is not used by IPSec. Kerberos uses a KDC for authentication.
Incorrect Answers:
A: The Authentication Header (AH) security protocol is used by IPSec.
B: The Encapsulating Security Payload (ESP) security protocol is used by IPSec.
D: The Internet Key Exchange (IKE) is the first phase of IPSec authentication, which accomplishes keymanagement.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 861