單項選擇題In which of the following lists of APS Action Requests is the priority correctly arranged from lowest tohighest？（）

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


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2.多項選擇題Which statements are correct for forwarding traffic into MPLS TE tunnels？（）

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.

3.單項選擇題Which of the following statements is correct regarding PIM Sparse Mode operations？（）

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

4.單項選擇題In the context of GMPLS，LMP stands for（）.

A.Loop Management Protocol
B.Label Management Protocol
C.Load Management Protocol
D.Link Management Protocol
E.None of above

5.單項選擇題Which of the following IOS commands cause syslog messages to be stamped with time and dates？（）

A.service timestamps log datetime
B.logging trap datetime
C.service logging datetime
D.logging datetime on
E.logging timestamps on