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The OSPF adjacency between routers R3 and R1 is down. What is the problem?

• A.Router R1 has the incorrect authentication key type.
• B.There is not enough information to tell.
• C.Area 1 of router R1 should not be configured as a stub.
• D.Router R3 has the incorrect authentication key type.

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Which of the following about LSP path configuration on an Nokia 7750 SR is TRUE?

• A.The path must define a tunnel destination IP address.
• B.The path must include at least one hop.
• C.The path may be used multiple times in a single LSP.
• D.The path may be used for multiple LSPs.

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What are the ways the RID can be created on an Nokia 7750 SR router? (Choose three)

• A.By using the command "config router ospf rid X.X.X.X"
• B.The loopback IP address
• C.From the last 32 bits of the chassis MAC address
• D.From the system IP address
• E.From the highest interface IP address
• F.From the first 32 bits of the chassis MAC address

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How many service labels must be signaled to bring up a fully-meshed VPLS among three PE routers?

• A.1
• B.3
• C.6
• D.12

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Which of the following best describes downstream on demand label distribution?

• A.An LSR propagates a label mapping downstream for a FEC. only if it has a label mapping for the FEC's next-hop.
• B.An LSR distributes a label mapping for a FEC when it has been requested to do so.
• C.An LSR advertises label mappings to all peers for which it might be a next-hop for a given FEC.
• D.An LSR answers requests for label mappings immediately, without waiting for a label mapping from the next-hop.

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