mediumMultiple Choice
300-410 Practice Question: Given the following BGP configuration on router…
Given the following BGP configuration on router R1:
router bgp 65001
bgp router-id 1.1.1.1
neighbor 10.1.1.2 remote-as 65002 neighbor 10.1.1.2 route-map SET-MED out
! route-map SET-MED permit 10 match ip address prefix-list LOOPBACKS set metric 100 ! route-map SET-MED permit 20 !
ip prefix-list LOOPBACKS permit 192.168.0.0/24
What is the effect of this configuration?
⚠ Common exam trap
The trap is forgetting the implicit deny at the end of route-maps — candidates either assume all routes are blocked (missing the empty permit) or assume all routes get the metric (missing that set metric only applies in the matched sequence).
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
✓
All routes are advertised to 10.1.1.2; the 192.168.0.0/24 route has MED 100, others have no MED.
The route-map SET-MED has two permit statements: sequence 10 matches the LOOPBACKS prefix-list and sets MED 100, while sequence 20 is an empty permit that matches everything else and applies no metric change. Because route-maps have an implicit deny at the end, the empty permit 20 is essential to allow all other routes through. The result is that all routes are advertised, but only 192.168.0.0/24 carries MED 100.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Only the 192.168.0.0/24 route is advertised to 10.1.1.2, with MED 100.
Why it's wrong here
Route-map SET-MED ends with a permit 20 sequence that matches everything, so all routes are advertised; only 192.168.0.0/24 receives MED 100. The prefix-list restricts the match clause, not the advertisement itself, which is the common misreading.
- ✓
All routes are advertised to 10.1.1.2; the 192.168.0.0/24 route has MED 100, others have no MED.
Why this is correct
The route-map's implicit deny is overridden by sequence 20, which permits all remaining prefixes without a set clause, so every route still advertises. Sequence 10 matches only 192.168.0.0/24 via the prefix-list and stamps MED 100 on it, satisfying the requirement that other routes carry no MED attribute.
- ✗
All routes are advertised with MED 100 because the route-map is applied outbound.
Why it's wrong here
Sequence 20 of SET-MED has no match or set clause, so it permits remaining routes unchanged; only prefixes matching LOOPBACKS receive metric 100. The claim that all routes get MED 100 misreads route-map evaluation, confusing an applied outbound route-map with unconditional modification of every advertisement.
- ✗
Only the 192.168.0.0/24 route is advertised with no MED because the set metric is ignored.
Why it's wrong here
The set metric 100 inside permit sequence 10 is valid and applied to prefixes matching LOOPBACKS, so 192.168.0.0/24 is advertised with MED 100, not without it. Assuming the metric is ignored is tempting when route-map clauses are misread, but set metric works normally here.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
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.