What are three functions of the Cisco wireless LAN controller, <br /> which is being used in the Company  Centralized WLAN solution network? ()<br />
A、 Authentication
B、 Mobility
C、 Security management
D、 Transmission of beacon frames
E、 Real-time portions of MAC management
F、 Real-time aspects of the 802.11 prtocol management
H、 SNMP collection