Which of the following statements regarding the IS-IS CSNP is false?

• A.CSNPs are used to maintain consistency in the link state database.
• B.CSNPs are advertised before an adjacency is formed with another router.
• C.There are two types of CSNPs: Level 1 and Level 2.
• D.CSNPs are advertised after an adjacency is formed with another router.

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What does a PE do when a frame is received in a VPLS service with an unknown destination address by default?

• A.Send a destination unreachable message back to the originating host.
• B.Store the frame until the destination is known
• C.Drop the frame.
• D.Flood the frame to all PEs participating in the service.

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Click on the exhibit.

Before the link failure, all routers have operational OSPF adjacencies between them and there is a BFD session between routers R1 and R3.
After the link failure, which of the following affects the IGP convergence time?

• A.The convergence time depends on the time taken by the switches to detect the link failure.
• B.The convergence time depends on the value of the OSPF hello timers on routers R1 andR3.
• C.The convergence time depends on the value of the BFD interval and multiplier settings on routers R1 andR3.
• D.The convergence time depends on the value of the OSPF hello timers and Dead interval on routers R1 and R3.

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Click on the exhibit.

An LSP path is established on router R1 toward router R6. After router R4 detects that the link between routers R4 and
R6 goes down, which of the following will affect the failure propagation time?

• A.The time router R1 takes to signal an alternate path through router R3.
• B.The time router R4 takes to send a PATH Error message toward the head-end router.
• C.The time router R4 takes to send a RESV Error message to the head-end router.
• D.The time router R4 takes to detect RSVP Hello message timeout from router R6.

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On the Alcatel-Lucent 7750 SR, which one of the following steps is NOT required when enabling an MP-BGP session between PE routers in a VPRN?

• A.Configuring an autonomous system number in the global context.
• B.Configuring a BGP group and peer parameters.
• C.Configuring a VPN-IPv4 address family.
• D.Configuring an export policy to advertise routes between PEs.

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