A.It prevents message looping，Session Advertisement（SA）messages must be RPF checked
B.RPF check should be done against the route to the Rendez-vous Point of the corresponding PIM-SM domain，which originated the SA
C.RPF checking Session Advertisement（SA）messages will cause message looping
D.RPF check should be done against the route to the source S of the corresponding PIM-SM domain
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A.LDP and RSVP
B.RSVP and CEF
C.CEF and the FIB table
D.UDP and IP
E.A and B
A.LSA type 1
B.LSA type 2
C.LSA type 7
D.LSA type 3
E.LSA type 9
F.LSA type 5
A.Packet mode
B.Frame mode
C.Transparent mode
D.Channel mode
E.Tunnel mode
A.It removes the top label in the MPLS label stack.
B.It adds a top label in MPLS label stack.
C.It replaces the top label in the MPLS label stack with another value.
D.It replaces the top label in the MPLS label stack with a set of labels.
E.None of above.
A.Wait-to-Restore，F(xiàn)orced Switch，Manual Switch，Lockout of Protection
B.Manual Switch，Wait-to-Restore，Lockout of Protection，F(xiàn)orced Switch
C.Lockout of Protection，F(xiàn)orced Switch， Manual Switch，Wait-to-Restore
D.Lockout of Protection，Manual Switch， Forced Switch，Wait-to-Restore
E.Wait-to-Restore，Manual Switch，F(xiàn)orced Switch，Lockout of Protection
F.Wait-to-Restore，Manual Switch，Lockout of Protection，F(xiàn)orced Switch
A.239.0.0.1
B.239.255.255.255
C.224.0.0.10
D.224.0.0.5
A.Autoroute causes the tunnel to be treated as a directly connected link to the head-end.
B.Autoroute causes the TE head-end to establish IGP adjacency with the tail-end over the tunnel.
C.Forwarding adjacency makes the TE head-end node advertise the Tunnel LSP into the IGP.
D.Forwarding adjacency supports unequal cost load balancing over multiple TE tunnels.
A.It does not support all underlying unicast routing protocols like GBP
B.It supports shared trees only assuming all hosts want the multicast traffic
C.Receivers are registered with RP by their first-hop router
D.Receivers are joinedto the Shared Tree（rooted the rp ）by their local Designated Router（DR）
E.From the RP，traffic flows down a Source Tree to each receiver
A.Loop Management Protocol
B.Label Management Protocol
C.Load Management Protocol
D.Link Management Protocol
E.None of above
A.service timestamps log datetime
B.logging trap datetime
C.service logging datetime
D.logging datetime on
E.logging timestamps on
最新試題
Which two requirements to deploy 6PE and 6VPE solutions are mandatory？（）
Cisco IOS XR Software Multicast Routing Implementation， which three features are supported in IPv6 onCisco CRS router？（）
What method of streaming live video is the least taxing on bandwidth in a large enterprise environment？（）
Which statement about implementing the Cisco IPv6 provider Edge Router over MPLS is true？（）
In the Carrier Supporting Carrier （CsC） feature， which two protocols run between CSC-PE and CSC-CE（）.
Which three statements about MPLS traffic engineering （MPLS TE） are true？ （）
When an MPLS Layer 2 VPN runs in the hub-and-spoke model， where is QoS implemented？（）
Which of the following is used to periodically multicast by DIS on a LAN to ensure IS-IS link state databaseaccuracy？（）
Which three are advantages of SONET？（）
Which configuration prevents traffic that is sourced from the unique local address scope to be sent out ofthe link to the upstream service provider？（）