350-501 MPLS and Segment Routing Practice Question
Which MPLS label operation is performed by the penultimate hop router in PHP (Penultimate Hop Popping)?
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
✓
Pop
In PHP, the penultimate hop router pops the label before forwarding the packet to the egress router, reducing the egress's workload.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
No operation
Why it's wrong here
The router must actively pop.
- ✗
Swap
Why it's wrong here
Swap is for transit routers.
- ✗
Push
Why it's wrong here
Push is not performed at penultimate hop.
- ✓
Pop
Why this is correct
PHP pops the label.
Go deeper
Related to this question
About these practice questions
One of 971 original 350-501 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 →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-501 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 350-501 exam.