The "Alerts" tab in an access tracker entry shows the error message: "Access denied by policy."
What is a possible cause of authentication failure?
A. Failure to find an appropriate service to process the authentication request
B. Configuration of the Enforcement Policy
C. An error in the role mapping policy
D. Implementation of a firewall policy on ClearPass
E. Failure to select an appropriate authentication method for the authentication request
I guess B is correct