Which one of the following security areas is directly addressed by
Kerberos?

A.
Confidentiality

B.
Frequency analysis

C.
Availability

D.
Physical attacks

Explanation:
Kerberos directly addresses the confidentiality and also the
integrity of information.
* attacks such as frequency
analysis are not considered in the basic Kerberos implementation. In
addition, the Kerberos protocol does not directly address availability
issues. (Answer Availability.)
For answer “Physical attac”, since the Kerberos TGS and the
authentication servers hold all the secret keys, these servers are
vulnerable to both physical attacks and attacks from malicious code.
In the Kerberos exchange, the client workstation temporarily holds
the client’s secret key, and this key is vulnerable to compromise at
the workstation.