问题：

[多选] 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.