Given:ABC Company has recently installed a WLAN controller and configured it to support WPA2- Enterprise security. The administrator has confirmed a security profile on the WLAN controller for each group within the company (manufacturing, sales, and engineering)
How are authenticated users assigned to groups so that they receive the correct security profile within the WLAN controller?

A.
The WLAN controller polls the RADIUS server for a complete list of authenticated users and groups after each user authentication.

B.
The RADIUS server forwards a request for a group attribute to an LDAP database service, and LDAP sends the group attribute to the WLAN controller.

C.
The RADIUS server sends a group name return list attribute to the WLAN controller during every successful user authentication.

D.
The RADIUS server sends the list of authenticated users and groups to the WLAN controller as a part of a 4-way handshake prior to user authentication.

Explanation:
In WLANs, a RADIUS server is typically the entity performing the authorization from the WLAN hardware ‘ s perspective.It is common to fi nd that most enterprises do not use the built – in native user database functions within RADIUS servers. Depending on what user database technology an organization is already using, RADIUS would be used to interface to these systems.WLAN infrastructure from some manufacturers
can integrate directly to LDAP systems in lieu of sending each supplicant authentication request to a RADIUS server. If a RADIUS server was still used, a RADIUS server could authenticate requests to an LDAP database.