多项选择题
A. common network infrastructure
B. abstracted integration
C. network solutions
D. intelligent network services
多项选择题 Whichthreeofthesearemajorscaling，sizing，andperformanceconsiderationsforanIP secdesign？（）
单项选择题 Scalabilityisprovidedintheserverfarmmodulebywhichofthefollowingdesignstrategies？（）
单项选择题 WhichroamingoptionwillkeepthemonthesameIPsubnetwhenclienttrafficisbeingbridged throughLANinterfacesontwoWLCs？（）