WhichtwostatementsaboutthevariousimplementationsofSTParetrue?()A.monSpanningTreemaintainsaseparatespanning-treeinstanceforeachVLANconfiguredinthenetwork.B.TheSpanningTreeProtocol（STP）isanevolutionoftheIEEE802.1wstandard.C.Per-VLANSpanningTree（PVST）support
题目
WhichtwostatementsaboutthevariousimplementationsofSTParetrue?()
A.monSpanningTreemaintainsaseparatespanning-treeinstanceforeachVLANconfiguredinthenetwork.
B.TheSpanningTreeProtocol（STP）isanevolutionoftheIEEE802.1wstandard.
C.Per-VLANSpanningTree（PVST）supports802.1Qtrunking.
D.Per-VLANSpanningTreePlus（PVST+）isanenhancementto802.1QspecificationandissupportedonlyonCiscodevices.
E.RapidSpanningTreeProtocol（RSTP）includesfeaturesequivalenttoCiscoPortFast，UplinkFast，andBackboneFastforfasternetworkreconvergence.
F.MultipleSpanningTree（MST）assumesonespanning-treeinstancefortheentireLayer2network，regardlessofthemultiplenumberofVLANs