Which two statements about the Wireless Location Appliance are true？（）

A. a Wireless Location Appliance acts as a server to one or more Cisco WCSs. It collects， stores， and passes on data from its associated Cisco WLAN controllers
B. before using the Web interface， the initial configuration of the Wireless Location Appliance must be done using the command-line interface （CLI）
C. the Cisco 2000， 2700， 4100， and 4400 are examples of Wireless Location Appliance.
D. the Wireless Location Appliance visually displays the location information of WLAN devices and forwards this information to third-party applications using the Simple Network devices and forwards this information to third-party applications using the Simple Network Management Protocol （SNMP）
E. the Wireless Location Appliance visually tracks up to 15，000 WLAN devices and can store this information for 90 days.