What is the role of IKE within the IPsec protocol:

A.
peer authentication and key exchange

B.
data encryption

C.
data signature

D.
enforcing quality of service

Explanation:
“In order to set up and manage Sas on the Internet, a standard format called the Internet Security
Association and Key Management Protocol (ISAKMP) was established. ISAKMP provides for secure
key exchange and data authentication. However, ISAKMP is independent of the authentication
protocols, security protocols, and encryption algorithms. Strictly speaking, a combination of three
protocols is used to define key management for IPSEC. These protocols are ISAKMP, Secure Key
Exchange Mechanism (SKEME) and Oakley. When combined and applied to IPSEC, these protocols
are called the Internet Key Exchange (IKE) protocol.” Pg. 222 Krutz: The CISSP Prep Guide: Gold
Edition