Kerberos

A.

Kerberos addresses the confidentiality and integrity of information.

It also addresses primarily authentication but does not directly address availability.

Reference(s) used for this question: KRUTZ, Ronald L.

& VINES, Russel.

D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 42

and https://www.ietf.org/rfc/rfc4120.txt and http://learn-networking.com/network-security/how-kerberos-authentication-works.

Kerberos is a network authentication protocol that is designed to provide secure authentication for network services. It uses a client-server model, and it enables clients to prove their identity to servers (and vice versa) in a secure manner.

The primary function of Kerberos is authentication, which ensures that only authenticated users are granted access to network resources. The authentication process involves the use of tickets, which are encrypted messages that contain information about the user's identity and authentication status.

Therefore, the correct answer to this question is option B: Authentication and Availability. Kerberos addresses the issues of authentication and availability by providing a secure way to authenticate users and ensure that network resources are available to authorized users.

Confidentiality and integrity are not directly addressed by Kerberos, although the protocol does use encryption to protect the contents of messages exchanged between clients and servers. Validation and auditability are also not primary concerns of Kerberos, although it can be used in conjunction with other security mechanisms to provide these capabilities.