Which of the following Internet Protocol (IP) security headers are defined by the Security
Architecture for IP (IPSEC)?

A.
The IPv4 and IPv5 Authentication Headers

B.
The Authentication Header Encapsulating Security Payload

C.
The Authentication Header and Digital Signature Tag

D.
The Authentication Header and Message Authentication Code

Explanation:
“IPSec uses two basic security protocols: Authentication Header (AH) and the Encapsulating Security
Payload (ESP).” pg 575 Shon Harris CISSP All-In-One Certification Exam Guide