Jane, a security administrator, needs to implement a secure wireless authentication method that uses a remote
RADIUS server for authentication.
Which of the following is an authentication method Jane should use?

A.
WPA2-PSK

B.
WEP-PSK

C.
CCMP

D.
LEAP

Explanation:
A RADIUS server is a server with a database of user accounts and passwords used as a central authentication
database for users requiring network access.
The Lightweight Extensible Authentication Protocol (LEAP) is a proprietary wireless LAN authentication method
developed by Cisco Systems. Important features of LEAP are dynamic WEP keys and mutual authentication
(between a wireless client and a RADIUS server). LEAP allows for clients to reauthenticate frequently; upon
each successful authentication, the clients acquire a new WEP key (with the hope that the WEP keys don’t live
long enough to be cracked). LEAP may be configured to use TKIP instead of dynamic WEP.