mediumMultiple Choice
300-410 Practice Question: Router R4 has the following configuration: !---…
Router R4 has the following configuration:
!--- R4 configuration route-map SETTAG permit 10 match tag 100 set tag 200 ! route-map SETTAG permit 20 !
router bgp 65100 neighbor 10.0.0.1 route-map SETTAG in
!
What is the effect of this configuration?
⚠ Common exam trap
300-410 often tests the misconception that a route-map sequence without a match statement is invalid or denies traffic, when it actually permits all unmatched routes.
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 from neighbor 10.0.0.1 are permitted; routes with tag 100 have their tag changed to 200.
The route-map SETTAG has two sequences: sequence 10 matches tag 100 and sets tag 200, while sequence 20 has no match statement, which acts as a permit any. Therefore, all routes from neighbor 10.0.0.1 are permitted, and routes with tag 100 have their tag changed to 200.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
All routes from neighbor 10.0.0.1 are permitted; routes with tag 100 have their tag changed to 200.
Why this is correct
Route-map entries are evaluated in sequence, so permit 10 matches tag 100 and rewrites it to 200, while permit 20 has no match clause and therefore permits every remaining route from 10.0.0.1 unchanged. Both entries permit, so no routes are dropped.
- ✗
Routes with tag 100 are denied; all other routes are permitted.
Why it's wrong here
Tag 100 routes are not denied: permit 10 matches them and rewrites the tag to 200, so they pass. Denial would require a route-map sequence with a deny statement, which is absent here. This option tempts candidates who conflate matching with filtering, a mistake relevant when route-maps genuinely deny traffic by omitting a permit sequence.
- ✗
Only routes with tag 100 are permitted; all other routes are denied.
Why it's wrong here
The route-map contains a permit sequence 20 with no match clause, which matches every remaining route and forwards it unchanged, so nothing is denied. Tag 100 routes are re-tagged to 200, and all others pass through sequence 20. Denial would require an implicit deny with no catch-all permit, as in filtering route-maps applied to BGP neighbours.
- ✗
The route-map is misconfigured because sequence 20 has no match statement; it should have a match any statement.
Why it's wrong here
Sequence 20 requires no match statement: a route-map entry with no match clause matches all routes, so it acts as a permit-any catch-all. The claim of misconfiguration is therefore false. It is tempting because explicit match statements are common, and omitting one looks like an oversight rather than deliberate design.
Go deeper
Related to this question
About these practice questions
Courseiva writes every 300-410 question from scratch — 1,401 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 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.