单项选择题
A. VLAN
B. NAC
C. EAP
D. WLAN
多项选择题 TheCiscoUnifiedWirelessNetworkminimizestheTCOandmaximizesworelessnetworkuptimebyoptimizingwhichtwodeployment，management，andsecurityfeatures？（）
单项选择题 Youareataclientsite.Itisamedium-sizedbusinessandneedsaCiscoCatalystswitchthatoffershighavailabilityandsecurity.WhattypeofCatalystswitcheswouldyourecommend？（）
单项选择题 WhichcompanionswitchisrecommendedtobeinstalledwithCiscoSmartBusinessCommunicationsSystem？（）