Question 1mediumdrag order
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Quick Answer
The correct order begins with enabling the BGP process and defining the local AS, followed by configuring the router as a route reflector using the neighbor route-reflector-client command, then specifying the cluster ID if needed, adjusting next-hop behavior with next-hop-self, and finally verifying with show ip bgp neighbors. This sequence is correct because route reflection requires first establishing the BGP session foundation before designating the reflector role, which fundamentally changes how the router handles iBGP updates by allowing it to re-advertise routes learned from one iBGP peer to another, breaking the full-mesh requirement. On the ENCOR 350-401 exam, this drag-and-drop task tests your understanding of the logical progression in iBGP route reflection configuration steps, often appearing as a scenario where you must order commands correctly. A common trap is placing the cluster-id configuration before the route-reflector-client statement, but remember that the cluster ID is an optional attribute applied after the client relationship is defined. For a quick memory tip, think "BGP, Reflect, Cluster, Next-Hop, Verify" to anchor the five-step flow.
350-401 BGP Practice Question
This 350-401 practice question tests your understanding of bgp. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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 of iBGP route reflection configuration 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
✓
Enable BGP process and define local AS
First, you enable the BGP process and define the local AS. Then you configure the router as a route reflector using the neighbor route-reflector-client command. Next, you specify the cluster ID if needed, then adjust the next-hop behavior with next-hop-self. Finally, you verify the configuration with show ip bgp neighbors.
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 350-401 OSPF questions on adjacency and route selection.
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FAQ
Questions learners often ask
What does this 350-401 question test?
BGP — This question tests BGP — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: Enable BGP process and define local AS — First, you enable the BGP process and define the local AS. Then you configure the router as a route reflector using the neighbor route-reflector-client command. Next, you specify the cluster ID if needed, then adjust the next-hop behavior with next-hop-self. Finally, you verify the configuration with show ip bgp neighbors.
What should I do if I get this 350-401 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 350-401 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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Same concept, more angles
1 more ways this is tested on 350-401
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Drag and drop the steps of iBGP route reflection configuration steps into the correct order, from first to last.
medium- ✓ A.Enable BGP routing process
- ✓ B.Configure cluster ID under BGP
- ✓ C.Define neighbor as route reflector client
- ✓ D.Advertise networks into BGP
- ✓ E.Verify reflected routes on clients
Why A: Route reflection requires first enabling BGP, then configuring the cluster ID, designating the route reflector client, and finally verifying the reflection behavior.
Last reviewed: Jun 18, 2026
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