Layer 3 VPN Concepts and Architecture JN0-664 Practice Questions (Page 4)

Questions 16–17

1. 16expert · hard

   A service provider is troubleshooting a Layer 3 VPN issue where a customer site connected to PE1 cannot reach a remote site connected to PE2. The VRF on PE1 has the route to the remote site's prefix, and the next hop is PE2's loopback address. However, when the customer sends traffic, it is dropped. The engineer verifies that the MPLS LSP between PE1 and PE2 is up. What is the most likely cause of the problem?

   • AThe VPN label advertised by PE2 for the remote site's prefix is missing or incorrect in PE1's forwarding table
   • BThe customer edge router at the remote site is not advertising the route to PE2
   • CThe route target on PE2's VRF is not configured to import the route from PE1
   • DThe P routers in the core are not configured with the customer's VRF
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2. 17foundation · easy

   Which statement about route distinguishers is true?

   • AThe RD is used to filter routes based on the VPN's route targets.
   • BThe RD is assigned by the customer and must be unique within the customer's network.
   • CThe RD is used by P routers to forward VPN traffic.
   • DThe RD is part of the VPN-IPv4 address and is used to distinguish routes from different VPNs.
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