多项选择题
A.Cisco Express Fonvarding
B.FIB switching
C.Cache switching
D.Optimized switching
E.Process switching
F.Fast switching
单项选择题 Whichofthefollowingmanagementtypescanbeusedtodeployappropriatequality-of-servicesolutionstomakethemostefficientuseofbandwidth？（）
单项选择题 Whichofthefollowingcommandsprovidesdataplaneinformationrequiredtoforwardapackettoaspecificipaddress？（）
多项选择题 WhichofthefollowingcharacteristicsdescribetheRootGuardfeature？（Chooseallthatapply.）（）