多项选择题
A.Phone+Desktop
B.Desktop
C.Switch
D.Router
E.Trunk
多项选择题 WhichtwostatementsaboutconfigurationanunconnectedCatalystExpress500switchfromsetupmodeusingaPCaretrue？（）
单项选择题 Whatisthereasonforrunningspanning-treeinaCiscoSingle-SiteSecureNetworkFoundationSolution？（）
单项选择题 WhichWANconnectionrequiresadifferentinterfacethanthestandardinterfaceprovidedintheCiscoSingle-SiteSecureNetworkFoundationdeploymentdesign？（）