hardMultiple ChoiceObjective-mapped
300-410 Practice Question: An engineer configures a BGP route reflector with…
An engineer configures a BGP route reflector with a route map that sets a higher local preference on routes received from a client. The route map is applied to the neighbor statement for the client. Unexpectedly, the route reflector does not reflect the modified local preference to other clients. Which is the most likely explanation?
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 route map is applied outbound, not inbound, so the local preference is set after the route is reflected.
When a route map is applied to a BGP neighbor inbound, it modifies the route before it is installed in the BGP table. However, route reflectors reflect routes based on the best path selection, and if the local preference is set, it should be reflected. The issue is that the route map is applied outbound instead of inbound, or the route map does not explicitly set the local preference before the route is processed. The most common edge case is that the route map is applied outbound, which does not affect the route before reflection.
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 route map is applied outbound, not inbound, so the local preference is set after the route is reflected.
Why this is correct
Outbound route maps affect routes sent to the neighbor, not routes received; reflection happens before outbound processing.
- ✗
Route reflectors do not modify local preference; only the route reflector itself can set local preference.
Why it's wrong here
Route reflectors can modify attributes via route maps.
- ✗
The route map must be applied to the route reflector's cluster list, not the neighbor.
Why it's wrong here
Route maps are applied to neighbors, not cluster lists.
- ✗
The local preference is overridden by the next-hop-self command.
Why it's wrong here
Next-hop-self does not affect local preference.
Go deeper
Related to this question
Learn chapter
OSPF Neighbor Adjacency and Basics
Key term
Policy Based Routing
Policy Based Routing (PBR) is a technology that allows network traffic to be forwarded based on user-defined policies rather than just the destination IP address in the routing table.
Key term
BGP Route Reflector
A BGP Route Reflector is a networking device that reduces the number of BGP peer connections needed in a large network by allowing routers to share routing information without needing to connect to every other router directly.
About these practice questions
Courseiva writes every 300-410 question from scratch — 1,966 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 300-410 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 300-410 exam.