多项选择题
A. extends networkQoS throughout the network
B. simplifies management of central or remotely locates access points
C. ensures implementation of the most recent security protocols
D. streamlines wireless LAN management
E. extends features for optical traffic network services
多项选择题 InwhichtwowaysdoesanintegratedsecuritysolutionreduceTCO？（）
单项选择题 TherearefourmainCiscocertificationlevelsthatyoucanattainasacertifiedCiscoprofessional.Whatisthehighestlevelofcertificationthatisoffered？（）
单项选择题 WhichstatementbestdescribesthedifferencesbetweenCiscoSMARTnetandCiscoSMARTnet Onsite？（）