单项选择题
What is the label for MPLS over ATM？（）
A.VPI 16
B.DLCI
C.VPI and VCI
D.circuit number
E.PVC and SVC
相关考题
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单项选择题
Whenwilltheprimaryprocessorcoredumprunincaseofaswitchover？（）
A.never takes place
B.periodically
C.during switchover
D.after switchover
E.before switchover -
多项选择题
WhichtwostatementsaboutRPFchecksinMulticastSourceDiscoveryProtocol（MSDP）aretrue？（）
A.It prevents message looping， Session Advertisement （SA）messages must be RPF checked
B.RPF check should be done against the route to the source S of the corresponding PIM-SM domain
C.RPF check should be done against the route to the Rendez-vous Point of the corresponding PIM-SM domain，which originated the SA
D.RPF checking Session Advertisement （SA） messages will cause message looping -
单项选择题
WhichstatementaboutVPNv6addressesistrue？（）
A.The VPNv6 address is a 96-bit route distinguisher and a 128-brt IPv6 address
B.The VPNv6 address is a 64-bit route distinguisher and a 128-bit IPv6 address
C.The VPNv6 address is a 64-brt route distinguisher and a 96-brt IPv6 address
D.The VPMv6 address is a 96-brt route distinguisher and a 96-bit IPv6 address
E.The VPNv6 address is a 128-bit route distinguisher and a 128-brt IPv6 address
