Which of the following issues is NOT addressed by Kerberos?

A.
Availability

B.
Confidentiality

C.
Integrity

D.
Authentication

Explanation:
Kerberos is a trusted, third party authentication protocol that was developed under Project Athena at MIT. In
Greek mythology, Kerberos is a three-headed dog that guards the entrance to the Underworld. Using
symmetric key cryptography, Kerberos authenticates clients to other entities on a network of which a client
requires services.
Kerberos addresses the confidentiality and integrity of information. It does not address availability.
Incorrect Answers:
B: Kerberos does address confidentiality.
C: Kerberos does address integrity.
D: Kerberos does address authentication.

Krutz, Ronald L. and Russell Dean Vines, The CISSP and CAP Prep Guide: Mastering CISSP and CAP, Wiley
Publishing, Indianapolis, 2007, p. 78