An engineer configures the wireless LAN controller to perform 802.1x user authentication. Which option must be enabled to ensure that client devices can connect
to the wireless, even when WLC cannot communicate with the RADIUS?
A.
local EAP
B.
authentication caching
C.
рrе-authentication
D.
Cisco Centralized Key Management
Explanation:
Local EAP is an authentication method that allows users and wireless clients to be authenticated locally on the controller. It is designed for use in
remote offices that want to maintain connectivity to wireless clients when the backend system becomes disrupted or the external authentication server goes down.
When you enable local EAP, the controller serves as the authentication server and the local user database, so it removes dependence on an external authentication
server.
http://www.cisco.com/c/en/us/support/docs/wireless/4400-series-wireless-lan-controllers/100590-ldap-eapfast-config.html