Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) — Question 102

How are MPLS Layer 3 VPN services deployed?

Answer options

• A. The RD and RT values must match under the VRF.
• B. The import and export RT values under a VRF must always be the same.
• C. The label switch path must be available between the local and remote PE routers.
• D. The RD and RT values under a VRF must match on the remote PE router.

Correct answer: C

Explanation

The correct answer, C, is accurate because a label switch path is essential for routing packets between local and remote PE routers in an MPLS Layer 3 VPN. Options A and D are incorrect as they refer to RD and RT values that do not need to match on remote routers. Option B is also wrong since import and export RT values can differ as they serve different functions in route propagation.