easyMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command to troubleshoot EIGRP…
A network engineer runs the following command to troubleshoot EIGRP over DMVPN:
R1# debug eigrp packets
EIGRP: Received HELLO on Tunnel0 nbr 10.0.0.2 EIGRP: New peer 10.0.0.2
What does this output indicate?
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
✓
EIGRP neighbor adjacency with 10.0.0.2 is established over Tunnel0.
The debug output shows that R1 has received an EIGRP hello from 10.0.0.2 on Tunnel0 and has formed a new neighbor adjacency.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
EIGRP neighbor adjacency with 10.0.0.2 is established over Tunnel0.
Why this is correct
Correct: Receiving a hello and creating a new peer indicates adjacency formation.
- ✗
EIGRP is not enabled on Tunnel0.
Why it's wrong here
Incorrect because a hello was received and processed.
- ✗
The EIGRP neighbor is in a stuck-in-active state.
Why it's wrong here
Incorrect because there is no indication of SIA.
- ✗
EIGRP authentication is failing between the routers.
Why it's wrong here
Incorrect because a hello was received and accepted.
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.