单项选择题
	A.router(config)#
	B.router(config-if)#
	C.router(config-vrf)#
	D.router(config-router)#
	E.router(config-router-af)#
多项选择题 WhichtwostatementsbestdescribeEtherChannel?()
单项选择题 RFC3270describesDifferentiatedServices(Diff-Serv)overMulti-ProtocolLabelSwitching(MPLS)networks.WhichmodelaltersDifferentiatedServices(Diff-Serv)codepointssetindifferentDifferentiatedServices(Diff-Serv)domain?()
多项选择题 Identifythedifferencesofoption10A,asopposedtooption10C,forinterASvpnofferings.Foroption10A().