Question 1,023 of 2,152
Route Maps and Route FilteringhardDrag & DropObjective-mapped

Quick Answer

The correct order for troubleshooting route-maps connectivity failures begins with verifying the BGP neighbor state, then checking the route-map syntax, confirming its application, debugging updates, and finally adjusting the sequence or match criteria. This sequence is essential because route-map issues often stem from misapplied filters or incorrect match conditions that silently drop prefixes, and you must rule out basic adjacency problems and configuration errors before assuming the route-map logic itself is flawed. On the Cisco CCNP ENARSI 300-410 exam, this drag-and-drop task tests your ability to follow a logical, layered troubleshooting methodology rather than jumping to fixes—a common trap is skipping the verification of neighbor state or the running-config, leading to wasted time on non-existent route-map problems. A reliable memory tip is the acronym SAD-DA: Start with Summary, check Application, then Debug, and finally Adjust.

300-410 Route Maps and Route Filtering Practice Question

This 300-410 practice question tests your understanding of route maps and route filtering. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

Drag and drop the steps to troubleshoot Route Maps and Route Filtering adjacency or connectivity failures into the correct order, from first to last.

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

  • Clue: "first"

    Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.

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

Verify BGP neighbor state with show ip bgp summary

Start by verifying BGP neighbor state with show ip bgp summary. Next, examine the route-map configuration for syntax errors using show route-map. Then, check if the route-map is applied correctly to the neighbor with show running-config. After that, use debug ip bgp updates to see if prefixes are being filtered. Finally, adjust the route-map sequence or match criteria to resolve the issue.

Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.

Common exam traps

Common exam trap: OSPF can fail even when IP connectivity looks correct

OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.

Detailed technical explanation

How to think about this question

OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.

KKey Concepts to Remember

  • OSPF neighbours must agree on key parameters.
  • Router ID selection can affect neighbour relationships and LSDB output.
  • OSPF cost influences the preferred path.
  • A route can appear in OSPF information but not become the installed route.

TExam Day Tips

  • Check area mismatch first when OSPF adjacency fails.
  • Review passive interfaces when a network is advertised but no neighbour forms.
  • Use show ip ospf neighbor and show ip route clues carefully.

Key takeaway

OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.

Real-world example

How this comes up in practice

A network engineer at a university connects two campus buildings via a fibre link. Both routers run OSPF, but no adjacency forms — even though both routers can ping each other. The engineer finds one router is in area 0 and the other in area 1. OSPF adjacency requires matching area numbers, hello/dead timers, and network type. IP reachability alone is not enough.

What to study next

Got this wrong? Here's your next step.

Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 300-410 OSPF questions on adjacency and route selection.

Related practice questions

Related 300-410 practice-question pages

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FAQ

Questions learners often ask

What does this 300-410 question test?

Route Maps and Route Filtering — This question tests Route Maps and Route Filtering — OSPF neighbours must agree on key parameters..

What is the correct answer to this question?

The correct answer is: Verify BGP neighbor state with show ip bgp summary — Start by verifying BGP neighbor state with show ip bgp summary. Next, examine the route-map configuration for syntax errors using show route-map. Then, check if the route-map is applied correctly to the neighbor with show running-config. After that, use debug ip bgp updates to see if prefixes are being filtered. Finally, adjust the route-map sequence or match criteria to resolve the issue.

What should I do if I get this 300-410 question wrong?

Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 300-410 OSPF questions on adjacency and route selection.

Are there clue words in this question I should notice?

Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.

What is the key concept behind this question?

OSPF neighbours must agree on key parameters.

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Last reviewed: Jun 18, 2026

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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.