Correct Answer: C
Explanation/Reference:
Explanation:
Kerberos is a third-party authentication service that can be used to support SSO.
Incorrect Answers:
A: Non-repudiation provides assurance that a specific user performed a specific transaction that did not change. It is not, however, the primary service provided by Kerberos.
B: Confidentiality strives to prevent unauthorized read access to data. It is not, however, the primary service provided by Kerberos.
D: Authorization refers to the actions you are allowed to carry out on a system after identification and authentication has taken place. It is not, however, the primary service provided by Kerberos.
References:
Conrad, Eric, Seth Misenar, Joshua Feldman, CISSP Study Guide, 2nd Edition, Syngress, Waltham, 2012, pp. 12, 14, 15, 43