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 ip eigrp neighbors
EIGRP-IPv4 Neighbors for AS(100) H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num 0 10.1.1.2 Gi0/0 13 00:12:34 1 200 0 45 1 10.2.2.2 Gi0/1 12 00:11:20 2 200 0 67 2 10.3.3.2 Gi0/2 10 00:10:15 1 200 0 89
Based on this output, which statement is correct?
⚠ Common exam trap
Cisco often tests the misconception that a lower hold timer or a higher sequence number indicates a problem, when in fact these values are normal operational metrics that do not imply faults unless they deviate significantly from expected baselines.
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
✓
All EIGRP neighbors are fully operational with no issues.
The output shows all three EIGRP neighbors with hold timers above 0, low SRTT values (1-2 ms), RTO at 200 ms, and a Q count of 0, indicating no queued packets. These metrics confirm that the neighbors are fully operational and stable, with no packet loss, congestion, or routing issues.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
All EIGRP neighbors are fully operational with no issues.
Why this is correct
The output shows stable adjacencies with low SRTT, RTO, and Q count of 0, indicating normal operation.
- ✗
The neighbor on Gi0/2 is experiencing packet loss because its hold timer is 10 seconds.
Why it's wrong here
A hold timer of 10 seconds is still within the default hold time of 15 seconds and does not indicate packet loss.
- ✗
The neighbor on Gi0/0 has a high SRTT, indicating congestion.
Why it's wrong here
The SRTT for Gi0/0 is 1 ms, which is very low and indicates no congestion.
- ✗
The neighbor on Gi0/1 has a sequence number of 67, which is higher than others, indicating a routing loop.
Why it's wrong here
Sequence numbers are incremental and do not indicate routing loops; they track update order.
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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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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