Using symmetric key cryptography, Kerberos authenticates clients to
other entities on a network and facilitates communications through the
assignment of:

A.
Tokens.

B.
Passwords.

C.
Public keys.

D.
Session keys.

Explanation:
The correct answer is “Session keys”. Session keys are temporary keys assigned
by the KDC and used for an allotted period of time as the secret key
between two entities. Answer a is incorrect because it refers to asymmetric encryption that is not used in the basic Kerberos protocol.
Answer Passwords is incorrect because it is not a key, and answer Tokens is incorrect
because a token generates dynamic passwords.