Which of the following statements about VPLS is FALSE?

• A.A VPLS emulates a virtual switch or bridge.
• B.A VPLS learns source MAC addresses from SAPs and SDPs.
• C.A VPLS discards frames with unknown MAC destinations.
• D.A MAC address forwarding database (FDB) is maintained for each VPLS.

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Which of the following are TRUE statements about the router ID in OSPF? Choose two

• A.On the Alcatel-Lucent 7750 SR, the router ID is set to the highest logical IP address if router-id is not explicitly set.
• B.A router ID is not required by OSPF.
• C.The system address is used as the router ID if router-id is not set.
• D.The router ID is used to uniquely identify every OSPF router.

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Which protocol is used by ping to verify IP network reachability?

• A.ICMP
• B.DCHP
• C.ARP
• D.NAT

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Which statement best describes a VPRN service?

• A.From the customers perspective it looks as if all sites are connected by the same set of dark fibers.
• B.From the customers perspective it looks as if all sites have public internet access administered by the service provider.
• C.From the customers perspective it looks as if all sites are connected to a private switched network administered by the service provider.
• D.From the customers perspective it looks as if all sites are connected to a private routed network administered by the service provider.

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Which of the following is TRUE regarding routers R2 and R3 in the pictured MPLS network?

• A.Router R2 pushes labels for LSP A, and R3 swaps labels for LSP A.
• B.Router R2 and R3 swap labels for LSP A and LSP B.
• C.Router R2 and R3 push labels for LSP A and LSP B, respectively.
• D.Router R2 swaps labels for LSP A, and R3 pops labels for LSP A.

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