多项选择题Fromsmallbusinesstolarge-scaleenterprises,whichtwobestdescribehowtheCiscoUnifiedWirelessNetworkreducesoveralloperationalexpenses?()
A. extends networkQoS throughout the network
B. simplifies management of central or remotely located access points
C. ensures implementation of the most recent security protocols
D. streamlines wireless LAN management
E. extends features for optical traffic network services