Which two statements describe advantages of using BGP for VPLS signaling instead of LDP signaling? (Choose two.)

• A.There is a separation of signaling from other services.
• B.There is auto discovery.
• C.There is no need for MPLS signaling protocol.
• D.There is a well-defined scaling hierarchy.

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Click the Exhibit button.

In the network shown in the exhibit, all switches are configured with the default STP root bridge priority, and Switch A has been selected as root. You recently added the older Switch D into the network as an access switch, and notice it has taken over as root.
Which configuration would solve this problem?

• A.
• B.
• C.
• D.

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Which statement is true about the operation of Layer 2 VPNs?

• A.Layer 2 VPNs require that CE devices use the same Layer 2 encapsulation
• B.Layer 2 VPNs allow CEs to use different encapsulations on either side of the VPN
• C.Service provider routers must evaluate the IP header of packets as they traverse their network
• D.Layer 2 VPNs do not permit CE devices to operate a Layer 3 protocol with each other

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Which two functions are performed by the OSPF designated router? (Choose two.)

• A.It advertises link-state information to the AS
• B.It designates some routers as inactive when not needed
• C.It forms adjacencies with all the other OSPF routers on the link
• D.It chooses the backup designated router

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Click the exhibit.

In the exhibit, which two routers will perform a swap action on LSP1? (Choose two.)

• A.R4
• B.R2
• C.R3
• D.R1

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