A. When a router receives a failure response, it stops querying authentication methods.
B. When a router receives an error response, it stops querying authentication methods.
C. If the router receives a failure response from an authentication method, it queries the next method.
D. The router does not differentiate between failure and error responses; the authentication process is always interrupted.
E. If it receives no response from the authentication method, a router will determine the error condition On its own; the router also has the option to proceed to the next method in a list if configured accordingly.

A. A pointer to the address where a RADIUS server can be located
B. A sequential list of user authentication methods
C. A description of what a user can execute on a router
D. The setup for the authentication phase on a router