easyMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command on Router PE5: PE5#…
A network engineer runs the following command on Router PE5:
PE5# show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 10.0.0.7 1 FULL/DR 00:00:32 10.1.1.7 GigabitEthernet0/0 10.0.0.8 1 FULL/BDR 00:00:35 10.2.2.8 GigabitEthernet0/1
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
✓
Both OSPF adjacencies are fully established.
The show ip ospf neighbor output displays two OSPF neighbors in FULL state, one as DR and one as BDR. This indicates that OSPF adjacencies are fully established and functioning correctly.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Both OSPF adjacencies are fully established.
Why this is correct
The state is FULL for both neighbors, indicating full adjacency.
- ✗
One neighbor is in the EXSTART state.
Why it's wrong here
Both are in FULL state.
- ✗
The router is not the DR for any segment.
Why it's wrong here
The output shows the router's neighbors as DR and BDR; the router itself could be DROTHER, but that is not indicated.
- ✗
There is a mismatch in OSPF area IDs.
Why it's wrong here
No area mismatch is indicated; adjacencies are 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.