单项选择题
A. device visualization
B. device clustering
C. server visualization
D. network visualization
多项选择题 WhendesigningtheIProutingfortheEnterpriseCampusnetwork，whichofthesefollowingtwoiBGBconsiderationsshouldbetakenintoaccount？（）
单项选择题 WhichofthesetechnologiesischaracterizedasbeingamultipointLayer2VPNthatconnectstwoormorecustomerdevicesusingEthernetbridgingtechniques？（）
多项选择题 WhichtwostatementsarecorrectregardingFlexLinks？（）