By default it will take 10 seconds for authentication to fail due to an unresponsive RADIUS server
before a Cisco Nexus series switch reverts to another RADIUS server or local authentication.
What is one efficient way to improve the reaction time to a RADIUS server failure?

A.
Decrease the global RADIUS retransmission count to 1.

B.
Decrease the global RADIUS timeout interval to 5 seconds.

C.
Configure the RADIUS retransmission count and timeout interval per server, versus globally.

D.
Configure per server a test idle timer, along with a username and password.