Which two details need to be configured on the AP to allow communicator! between the server and the AP?

An engineer needs to configure an autonomous AP for 802.Ix authentication. To achieve the highest security an authentication server is used for user authentication During testing, the AP fails to pass the user authentication request to the authentication server .

Which two details need to be configured on the AP to allow communicator! between the server and the AP? (Choose two.)
A . RADIUS IP address
B . Username and password
C . Group name
D . Shared secret
E . PAC encryption key

Answer: A,B