The primary service provided by Kerberos is which of the following? 

Answer options:

A. non-repudiation
B. confidentiality
C. authentication
D. authorization

The Answer: authentication. Kerberos is an authentication service. It can use single-factor or multi-factor authentication methods.

The following answers are incorrect: non-repudiation.Since Kerberos deals primarily with symmetric cryptography, it does not help with non-repudiation. confidentiality.Once the client is authenticated by Kerberos and obtains its session key and ticket, it may use them to assure confidentiality of its communication with a server; however, that is not a Kerberos service as such. authorization.Although Kerberos tickets may include some authorization information, the meaning of the authorization fields is not standardized in the Kerberos specifications, and authorization is not a primary Kerberos service. The following reference(s) were/was used to create this question: ISC2 OIG,2007 p. 179-184 - Shon Harris AIO v.3 152-155