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CCNP Practice Question: Drag and drop each MPLS label operation on the…

Drag and drop each MPLS label operation on the left to its matching action on the right.

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

Concepts
Matches

Adds a new label to the top of the label stack

Removes the top label from the label stack

Replaces the top label with a new label value

Pops the label at the penultimate hop before the egress LER

Copies the IP TTL value into the MPLS TTL field

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

✓

Push: Adds a new label to the top of the label stack

Push adds a new label to the stack, pop removes the top label, swap replaces the top label with a new one, PHP pops the label before the egress LER, and TTL propagation copies the IP TTL into the label TTL field.

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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 operation on the left to its matching action on the right.

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  • ✓ P1.Push: Adds a new label to the top of the label stack
  • ✓ P2.Pop: Removes the top label from the label stack
  • ✓ P3.Swap: Replaces the top label with a new label value
  • ✓ P4.Penultimate Hop Popping (PHP): Removes the label before the final hop
  • ✓ P5.Label Imposition: Adds one or more labels to an unlabeled packet

Why P1: Push adds a new label to the stack, pop removes the top label, and swap replaces the top label with a new one.

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.