A. Real-time frame exchange is accomplished within the access point.
B. The control traffic between the client and the access point is encapsulated with the LWAPP. 
C. Authentication， security， and mobility are handled by the access point.
D. Data traffic between the client and the access point is encapsulated with LWAPP.
E. None of the other alternatives apply

A. Reduction of processing in wireless controllers
B. Distributed approach to authentication， encryption， and policy enforcement
C. Access point discovery， information exchange， and configuration
D. Provides security by blocking communication between access points and wireless clients
E. None of the other alternatives apply.