Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) — Question 415

Which of the following are valid fields in an MPLS header? (Choose four.)

Answer options

• A. Label
• B. Sequence Number
• C. Experimental (Exp)
• D. Bottom of Stack (BoS)
• E. Time to Live (TTL)
• F. Checksum

Correct answer: A, C, D, E

Explanation

The correct fields in an MPLS header include Label, Experimental (Exp), Bottom of Stack (BoS), and Time to Live (TTL). Sequence Number and Checksum are not part of the MPLS header structure, which is designed primarily for label switching.