Huawei Certified ICT Associate – Data Center Network (HCIA-DCN) — Question 21

Which of the following fields are included in an MPLS header? (Choose three.)

Answer options

• A. Label
• B. Tos
• C. EXP
• D. TTL

Correct answer: A, B, C

Explanation

The correct options, A (Label), B (Tos), and C (EXP), are all fields present in an MPLS header, which help in determining the forwarding behavior of packets. Option D (TTL) is not included in the MPLS header, as it is part of the IPv4 header, not MPLS.