mediumMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command on Router R1: R1# show…
A network engineer runs the following command on Router R1:
R1# show event manager history events
Event History: No. Time Type Name 1 00:01:30 UTC Mar 1 syslog OSPF_Neighbor_Down 2 00:01:31 UTC Mar 1 syslog OSPF_Neighbor_Up 3 00:01:32 UTC Mar 1 syslog OSPF_Neighbor_Down 4 00:01:33 UTC Mar 1 syslog OSPF_Neighbor_Up
Based on this output, which statement is correct?
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 OSPF neighbor is flapping.
The event history shows alternating OSPF neighbor down and up events within seconds, indicating a flapping condition. The correct answer is that the OSPF neighbor is flapping.
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 OSPF neighbor is stable.
Why it's wrong here
Alternating down and up events indicate instability.
- ✓
The OSPF neighbor is flapping.
Why this is correct
The rapid succession of down and up events is characteristic of flapping.
- ✗
The EEM policy is not configured.
Why it's wrong here
Events are being logged, so a policy is configured.
- ✗
The OSPF neighbor is down permanently.
Why it's wrong here
The up events show it comes back up.
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.
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JA
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.