Question 1harddrag order
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Quick Answer
The correct order for PBR troubleshooting steps ends with testing connectivity using extended ping or traceroute, as this confirms whether the policy-based routing changes have actually altered the packet path. This sequence is critical because you must first verify that PBR is applied on the correct interface, then check the route-map sequence and match conditions, confirm the set next-hop reachability in the routing table, and use debug ip policy to observe packet matches before you can meaningfully test the result. On the Cisco CCNP ENARSI 300-410 exam, this drag-and-drop question tests your ability to logically isolate PBR failures, with a common trap being to test connectivity too early before verifying the route-map logic or next-hop availability. A useful memory tip is “Interface, Map, Match, Next-Hop, Debug, Test”—remember that you cannot confirm a path change until you have validated every prerequisite step in the policy chain.
300-410 Policy-Based Routing (PBR) Practice Question
This 300-410 practice question tests your understanding of policy-based routing (pbr). 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 Policy-Based Routing (PBR) 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 PBR application on interface (show ip policy)
Start by checking if PBR is applied on the correct interface. Then verify the route map sequence and match statements. Check the set next-hop reachability via routing table. Use 'debug ip policy' to see packet matches. Finally, test with extended ping or traceroute to confirm path.
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.
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Policy-Based Routing (PBR) — study guide chapter
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FAQ
Questions learners often ask
What does this 300-410 question test?
Policy-Based Routing (PBR) — This question tests Policy-Based Routing (PBR) — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: Verify PBR application on interface (show ip policy) — Start by checking if PBR is applied on the correct interface. Then verify the route map sequence and match statements. Check the set next-hop reachability via routing table. Use 'debug ip policy' to see packet matches. Finally, test with extended ping or traceroute to confirm path.
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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