单项选择题
A. Cisco IP Communications System
B. Cisco Integrated Communications Services System
C. Cisco Smart Business Communications System
D. Cisco Telephony System for Small Business
E. Cisco IP Phone System
多项选择题 WhichtwowirelessdevicesactsasacommunicationconnectionbetweentheclientandWLAN（）
多项选择题 Whataretwowayswithwhichasmallbusinesscankeepawirelessbusinessseparateandsecurefromawirelessguestaccessnetwork？（）
单项选择题 WhichCiscoSmallBusinesswirelessproductcanbeusedtoconnectthenetworkofasalesofficetoawarehouseinthebuildingacrosstheparkinglot？（）