问题：

[多选] Which two statements about the WLAN Solution Engine （WLSE） are true？（）

A . WLSE supports centralized configuration. 
B . WLSE supports distributed configuration.
C . WLSE can pick up statistics on a device even if the device is not properly configured.
D . WLSE can be used to upgrade the firmware on APs and bridges.
E . WLSE monitors device fault and performance conditions but cannot report any policy misconfiguratio