Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) — Question 614

Which table is used to map the packets in an MPLS LSP that exit from the same interface, via the same next hop, and have the same queuing policies?

Answer options

• A. LDP
• B. FEC
• C. CEF
• D. RIB

Correct answer: B

Explanation

The correct answer is B, FEC (Forwarding Equivalence Class), which is the table that groups packets with similar forwarding requirements. A (LDP) is related to the Label Distribution Protocol, C (CEF) is for Cisco Express Forwarding, and D (RIB) stands for Routing Information Base, none of which directly map packets in the manner described.