Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) — Question 449

Which two protocols are used by a P router to transfer VPN traffic between PE routers in an MPLS network? (Choose two.)

Answer options

• A. LDP
• B. RSVP
• C. MP-BGP
• D. BGP
• E. OSPF

Correct answer: A, B

Explanation

The correct answers, LDP and RSVP, are essential for establishing and managing label-switched paths in an MPLS environment, which is critical for transferring VPN traffic. Options C, D, and E are not specifically designed for this purpose; MP-BGP is used for exchanging routing information but not directly for transporting VPN traffic between PE routers.