What is a possible reason for the authentication failure?

A client’s authentication is failing and there are no entries in the ClearPass Access tracker.

What is a possible reason for the authentication failure?
A . The user account has expired.
B . The client used a wrong password.
C . The shared secret between the NAD and ClearPass does not match.
D . The user’s certificate is invalid.
E . The user is not found in the database.

View Answer

Answer: C