单项选择题
What are the address Family Identifier （AFI） and subsequent Address family Identifier ASAFI） values from VPNv6？（）
A.AFI is 2， SAFI is 128 B.AFI is 1， SAFI is 64 C.AFI is 2， SAFI is 64 D.AFI is 1， SAFI is 96 E.AFI is 2， SAFI is 96 F.AFI is 1， SAFI is 128
多项选择题 WhichthreemodesaretheoperatingmodesofHDLC？（）
多项选择题 WhichtworoutingprotocolssupportMPLStrafficengineeringlinkinformationdistribution？（）
单项选择题 WhichstatementabouttheCiscoMPLSTrafficEngineeringclass-basedtunnelselection（CBTS）isnottrue？（）
