- A
show ip route ospf
Why wrong: This shows OSPF routes, not neighbors.
- B
show ospf database
Why wrong: This shows link-state database, not neighbors.
- C
show ip ospf neighbors
This command displays OSPF neighbor states and adjacency details.
- D
show ip ospf interface
Why wrong: This shows OSPF configuration on interfaces, not neighbor states.
Question 89 of 1,000
350-601 Network Practice Question
This 350-601 practice question tests your understanding of network. 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.
Which NX-OS command is used to display the current OSPF neighbor states?
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
✓
show ip ospf neighbors
The 'show ip ospf neighbors' command is the correct NX-OS command to display the current OSPF neighbor states, including the neighbor ID, interface, state (e.g., FULL, 2WAY, DOWN), and adjacency details. This command directly queries the OSPF process for the neighbor state machine, which is essential for verifying OSPF adjacency formation and troubleshooting Layer 3 connectivity.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
show ip route ospf
Why it's wrong here
This shows OSPF routes, not neighbors.
- ✗
show ospf database
Why it's wrong here
This shows link-state database, not neighbors.
- ✓
show ip ospf neighbors
Why this is correct
This command displays OSPF neighbor states and adjacency details.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
show ip ospf interface
Why it's wrong here
This shows OSPF configuration on interfaces, not neighbor states.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between commands that show neighbor states versus those that show routing tables or database contents, so candidates may confuse 'show ip route ospf' or 'show ospf database' with the neighbor-specific command.
Trap categories for this question
Command / output trap
This shows OSPF routes, not neighbors.
Detailed technical explanation
How to think about this question
OSPF neighbor states progress through Down, Attempt, Init, 2-Way, ExStart, Exchange, Loading, and Full, as defined in RFC 2328. The 'show ip ospf neighbors' command in NX-OS outputs the current state for each neighbor, which is critical for identifying issues like stuck in ExStart (often due to MTU mismatch) or stuck in 2-Way (indicating a DR/BDR election issue on broadcast networks). In real-world scenarios, this command is the first step in diagnosing OSPF adjacency failures, such as when a new router fails to form a full adjacency with its DR.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Visual reference
Quick reference
Routing Protocol Comparison
| Protocol | Metric | Max Hops | Algorithm | Type |
|---|---|---|---|---|
| RIP v2 | Hop count | 15 | Bellman-Ford | Distance vector |
| OSPF | Cost (bandwidth) | Unlimited | Dijkstra (SPF) | Link state |
| EIGRP | Composite metric | Unlimited | DUAL | Hybrid |
| IS-IS | Cost | Unlimited | Dijkstra | Link state |
| BGP | Policy / attributes | Unlimited | Path vector | Path vector |
RIP's 15-hop limit makes it unsuitable for large networks. OSPF and EIGRP dominate modern enterprise deployments.
What to study next
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FAQ
Questions learners often ask
What does this 350-601 question test?
Network — This question tests Network — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: show ip ospf neighbors — The 'show ip ospf neighbors' command is the correct NX-OS command to display the current OSPF neighbor states, including the neighbor ID, interface, state (e.g., FULL, 2WAY, DOWN), and adjacency details. This command directly queries the OSPF process for the neighbor state machine, which is essential for verifying OSPF adjacency formation and troubleshooting Layer 3 connectivity.
What should I do if I get this 350-601 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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