单项选择题
Which of these is not a component of MPLS traffic engineering？（）
A.trunk admission control B.forwarding traffic to tunnel C.information distribution D.path selection， calculation， and setup E.traffic patterns prediction
多项选择题 WhichfourstatementsabouttheCarrierSupportingCarrier（CSC）featurearetrue？（）
单项选择题 WhatistheCiscoIOSdefaultbehaviorforswitchingfromthesharedtreetotheshortestpathtreeinPIM-SMoperations？（）
单项选择题 WhatisthedataencapsulationmethodfortheVPLSvirtualcircuit（VC）？（）
