Refer to the Partial Cisco IOS XR Configurations Exhibit for Router

question 2

Multiple Choice

Refer to the partial Cisco IOS XR configurations exhibit for Router 1 and Router 2. There are two routers that are connected back to back over the Gigabit Ethernet link. If the "show mpls ldp neighbor" command output on Router 1 does not show LDP peering with Router 2, what could be the possible root cause of the LDP peering problem?

• A) missing interface under OSPF IGP configuration
• B) hello timers mismatch on Router 1 and Router 2
• C) password for LDP session mismatch on Router 1 and Router 2
• D) MPLS LDP session protection is not configured

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Definitions:

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