350-501 Networking Practice Question
An SP is deploying IS-IS fast convergence using Partial Route Computation (PRC). Under which condition does PRC occur?
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
✓
When a prefix is added or removed without topology change
PRC is triggered when a prefix changes but the topology remains unchanged. It recalculates only the affected prefixes, not the entire SPF tree.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
When the IS-IS metric changes
Why it's wrong here
Metric change triggers full SPF.
- ✗
When the system ID changes
Why it's wrong here
System ID change triggers full SPF.
- ✗
When a new adjacency is formed
Why it's wrong here
Adjacency change triggers full SPF.
- ✓
When a prefix is added or removed without topology change
Why this is correct
PRC handles prefix changes only.
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.