单项选择题

Which statement about MPLS TE Fast Reroute （FRR） link protection operation is not true？（）

A.It requires a next-hop backup tunnel.
B.The backup tunnel terminates on the same tail-end router as the primary tunnel.
C.The point of local repair （PLR） swaps the label and pushes the backup label.
D.The restoration time is expected to be under 50 ms.
E.The backup tunnel can have associated bandwidth capacity

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热门试题

单项选择题WhichrouterorroutercombinationisusedtocalculatetheMPLStrafficengineeringtunnelpath？（）

A.head-end router and tail-end router
B.middle-point router
C.head-end router
D.tart-end router
E.tail-end router

单项选择题WhichCiscoIOScommanddisplaystheexportVPNroutetargetvalueofaVRF？（）

A.show ip vrf all
B.show ip vrf route-targets all
C.show ip vrf summary
D.show ip vrf interfaces
E.show ip vrf detail
F.show ip vrf

多项选择题WhichthreestatementsaboutOSPFpartialSPFaretrue？（）

A.If it is triggered by Type 4， all Type 4 LSAs that announce a certain ASBR and all Type 5 and 7 LSAs are processed
B.If it is triggered by Types 5 and 7， all Type 5 and 7 LSAs that contribute to a certain destination are processed.
C.If it is triggered by Type 2， all Type 2 LSAs that contribute to a certain destination are processed.
D.If it is triggered by the change of Type 3， 4， 5， and 7 LSAs.
E.If it is triggered by the change of Type 2， 3， 5， and 7 LSAs

多项选择题WhichfourstatementsaboutNetFlowaretrue？（）

A.NetFlow records bidirectional IP traffic flow.
B.NetFlow export can be implemented over IPv4.
C.NetFlow export can be implemented over IPv6.
D.NetFlow records multicast IP traffic flow.
E.NetFlow records ingress traffic.
F.NetFlow records egress traffic.

单项选择题WhichstatementaboutPIMsparsemodeoperationsistrue？（）

A.It does not support all underlying unicast routing protocols like BGP
B.Receivers are registered with RP by their first hop router
C.From the RP， traffic flows down a source tree to each receiver.
D.It supports shared trees only， and assumes all hosts want the multicast traffic
E.Receivers are joined to the shared tree by their local designated router