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300-410 Practice Question: An engineer configures OSPFv2 with a route-map to…

An engineer configures OSPFv2 with a route-map to set the metric on redistributed routes. After redistribution, the metric is not being set as expected. 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 does not have a match statement, so it applies to no routes.

When redistributing routes into OSPF, the metric is set using the 'metric' keyword in the redistribution command or via a route-map. However, if the route-map does not explicitly match the routes, the default metric (20 for external type 2) is used. Additionally, if the route-map uses 'set metric' but the redistribution command also has a 'metric' keyword, the route-map overrides the redistribution command.

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 does not have a match statement, so it applies to no routes.

    Why this is correct

    Without a match statement, the route-map does not apply to any routes, and the default metric is used.

  • The redistribution command uses the 'subnets' keyword, which overrides the route-map.

    Why it's wrong here

    The 'subnets' keyword does not affect metric setting.

  • The route-map is applied to the wrong direction.

    Why it's wrong here

    Route-maps for redistribution are applied in the redistribution command, not directionally.

  • The OSPF process is configured with 'default-metric' command, which overrides the route-map.

    Why it's wrong here

    The route-map overrides the default-metric command.

Visual reference

R1 R2 R3 R4 10 100 10 100 OSPF picks R1→R2→R4 (cost 20) over R1→R3→R4 (cost 200)

Quick reference

Routing Protocol Comparison

ProtocolMetricMax HopsAlgorithmType
RIP v2Hop count15Bellman-FordDistance vector
OSPFCost (bandwidth)UnlimitedDijkstra (SPF)Link state
EIGRPComposite metricUnlimitedDUALHybrid
IS-ISCostUnlimitedDijkstraLink state
BGPPolicy / attributesUnlimitedPath vectorPath vector

RIP's 15-hop limit makes it unsuitable for large networks. OSPF and EIGRP dominate modern enterprise deployments.

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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.