Which of the following does Kerberos provide?

A.
Non-repudiation

B.
Accounting

C.
Exchange

D.
Authentication

Explanation:

Kerberos is a trusted third-party authentication service based on the model presented by
Needham and Schroeder. It is trusted in the sense that each of its clients believes Kerberos’
judgment as to the identity of each of its other clients to be accurate.