If the “Alerts” tab in an access tracker entry shows the following error message: “Access denied by policy”, what could be a possible cause for authentication failure?

If the “Alerts” tab in an access tracker entry shows the following error message: “Access denied by policy”, what could be a possible cause for authentication failure?
A . Configuration of the Enforcement Policy.
B . An error in the role mapping policy.
C . Failure to select an appropriate authentication method for the authentication request.
D . Implementation of a firewall policy on ClearPass.
E . Failure to find an appropriate service to process the authentication request.

View Answer

Answer: A