How does LDP operate in an MPLS network?

• A.When an adjacent LSR receives LDP discovery messages. TCP two-way handshake ensures that the LDP session has unidirectional connectivity.
• B.LDP notification messages allow LERs to exchange label information to determine the next hops within a particular LSP.
• C.When topology changes occur such as a router failure, LDP generates peer discovery messages that terminate the LDP season to propagate an LSP change.
• D.Peer routers establish the LDP session, and the LDP neighbors maintain and terminate the session by exchanging messages

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Drag and drop the MPLS concepts from the left onto the descriptions on the right.

Correct Answer:

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Refer to the exhibit.

An administrator that is connected to the console does not see debug messages when remote users log in. Which action ensures that debug messages are displayed for remote logins?

• A.Enter the transport input ssh configuration command.
• B.Enter the terminal monitor exec command.
• C.Enter the logging console debugging configuration command.
• D.Enter the aaa new-model configuration command.

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Refer to the exhibit.

To provide reachability to network 10.1.1.0 /24 from R5, the network administrator redistributes EIGRP into OSPF on R3 but notices that R4 is now taking a ........... path through R5 to reach 10.1.1.0/24 network. Which action fixes the issue while keeping the reachability from R5 to 10.1.1.0/24 network?

• A.Apply the outbound distribution list on R5 toward R4 in OSPF.
• B.Change the administrative distance of OSPF to 200 on R5.
• C.Change the administrative distance of the external EIGRP to 90.

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Refer to the exhibit.


An OSPF neighbor relationship between R2 and R3 is showing stuck in EXCHANGE/EXSTART state. The neighbor is established between R1 and R2. The network engineer can ping from R2 to R3 and vice versa, but the neighbor is still down. Which action resolves the issue?

• A.Restore the Layer 2/Layer 3 conectivity issue in the ISP network.
• B.Match MTU on both router interfaces or ignore MTU.
• C.Administrative "shut then no shut" both router interfaces.
• D.Enable OSPF on the interface, which is required.

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