Courseiva
mediumMatchingObjective-mapped

350-401 Practice Question: Drag and drop each MPLS label field on the left…

Drag and drop each MPLS label field on the left to its matching bit size on the right.

Drag a concept onto its matching description — or click a concept then click the description.

Concepts
Matches

20 bits

3 bits

1 bit

8 bits

32 bits

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Label: 20 bits

The MPLS label is 20 bits, Traffic Class (TC) is 3 bits, Bottom of Stack (S) is 1 bit, and TTL is 8 bits, totaling 32 bits per label entry.

About these practice questions

One of 1,175 original 350-401 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

Same concept, more angles

1 more way this is tested on 350-401

These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.

Variation 1. Drag and drop each MPLS label field on the left to its matching bit size on the right.

medium
  • P1.Label: 20 bits
  • P2.Traffic Class (TC): 3 bits
  • P3.Bottom of Stack (S): 1 bit
  • P4.Time to Live (TTL): 8 bits
  • P5.Total label stack entry: 32 bits

Why P1: The MPLS label has 4 fields: Label (20 bits), TC (3 bits), S (1 bit), and TTL (8 bits).

JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This 350-401 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-401 exam.