350-501 Networking Practice Question
An engineer is designing an iBGP route reflector topology to improve scalability. Which two statements about BGP route reflectors are correct?
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
✓
The originator-id attribute prevents the route from being advertised back to the originating router.
Route reflectors use cluster-id to detect loops and originator-id to prevent advertisement back to the originator. The non-client mesh requirement is eliminated with route reflectors.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The originator-id attribute prevents the route from being advertised back to the originating router.
Why this is correct
Originator-id is set by the RR and checked to avoid loops.
- ✗
All clients must be fully meshed with each other.
Why it's wrong here
Clients need not be fully meshed; they connect to the route reflector.
- ✗
Route reflectors modify the AS_PATH attribute to prevent loops.
Why it's wrong here
Route reflectors do not modify AS_PATH; loop prevention uses cluster-list and originator-id.
- ✓
The cluster-id is used to identify a group of route reflectors.
Why this is correct
Cluster-id identifies a cluster; multiple RRs in a cluster share the same cluster-id.
- ✗
Route reflectors are only used in eBGP topologies.
Why it's wrong here
Route reflectors are used in iBGP topologies.
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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.