Question 974 of 1,840
mediumMultiple ChoiceObjective-mapped
350-401 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 0 192.168.1.2 Gi0/0 13 00:12:34 12 100 0 45 1 10.1.1.2 Gi0/1 12 00:10:20 15 120 0 32
Based on this output, what can be concluded?
⚠ Common exam trap
Cisco often tests the misconception that the 'show ip eigrp neighbors' output reveals authentication status or metric values, but the table only shows transport-layer reliability statistics and adjacency state, not security or routing metric details.
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 neighbors are fully established and exchanging routing information.
The 'show ip eigrp neighbors' output displays two neighbors in a stable state, indicated by the 'Q Cnt' (Queue Count) of 0 for both, meaning no packets are waiting to be sent. The 'Seq Num' (Sequence Number) values (45 and 32) show that R1 has received and processed EIGRP updates from each neighbor, confirming the adjacency is fully established and routing information is being exchanged. This output does not provide any metric or authentication details, so only the conclusion that both neighbors are fully operational is valid.
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 neighbors are using MD5 authentication.
Why it's wrong here
The output does not display authentication status; authentication is not shown in the neighbor table.
- ✗
Neighbor 192.168.1.2 has a higher metric than 10.1.1.2.
Why it's wrong here
The neighbor table does not show metrics; metrics are shown in the topology table.
- ✓
Both neighbors are fully established and exchanging routing information.
Why this is correct
The 'Q Cnt' of 0 and valid uptime indicate stable adjacencies.
- ✗
Router R1 is using EIGRP named mode.
Why it's wrong here
The output shows 'EIGRP-IPv4 Neighbors for AS(100)', which is classic mode; named mode would show 'EIGRP-IPv4 VR' or similar.
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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Last reviewed: Jun 24, 2026
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