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300-410 Practice Question: Runs the following command to troubleshoot an…
A network engineer runs the following command to troubleshoot an EIGRP issue:
R1# show ip eigrp neighbors detail
IP-EIGRP neighbors for process 100 H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num 0 10.1.2.2 Gi0/0 13 00:12:34 12 200 0 145 Version 12.4/1.2, Retrans: 0, Retries: 0, Prefixes: 5 Topology-ids from peer - 0 Stub Peer Advertising (CONNECTED STATIC) Routes Suppressing queries
What does this output indicate?
⚠ Common exam trap
Cisco often tests the distinction between a normal EIGRP peer and a stub peer by hiding the 'Suppressing queries' line in the output, leading candidates to overlook the stub behavior and incorrectly assume the peer is a normal router forwarding all routes.
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 neighbor is a stub router that only advertises connected and static routes, and it does not participate in query propagation.
The output shows 'Stub Peer Advertising (CONNECTED STATIC) Routes' and 'Suppressing queries', which indicates the neighbor is configured as an EIGRP stub router. A stub router advertises only connected and static routes (as specified) and does not participate in query propagation, meaning it will not forward queries from other routers, reducing the query domain and improving convergence.
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 neighbor is a stub router that only advertises connected and static routes, and it does not participate in query propagation.
Why this is correct
The line "Stub Peer Advertising (CONNECTED STATIC) Routes" confirms the peer is configured as a stub router, and "Suppressing queries" shows it will not propagate queries. This satisfies the scenario's requirement to identify stub behaviour and query suppression.
- ✗
The neighbor is a normal EIGRP peer that forwards all routes and queries.
Why it's wrong here
The Stub Peer Advertising (CONNECTED STATIC) Routes line with Suppressing queries shows the neighbour is a stub router, so it advertises only connected and static routes and does not forward queries. A normal peer forwards all routes and queries. It is tempting because the neighbour relationship is up and stable.
- ✗
The neighbor is not forming an adjacency due to a version mismatch.
Why it's wrong here
The output shows an established adjacency: uptime 00:12:34, five prefixes, zero retransmissions. EIGRP version mismatches prevent adjacency formation entirely, so no neighbour entry with uptime would appear. The version line confirms compatibility, not conflict. Version checking matters when configuring EIGRP named mode across differing IOS releases.
- ✗
The neighbor is using a different autonomous system number.
Why it's wrong here
An AS-number mismatch stops EIGRP neighbours from forming any adjacency, so no entry with uptime, SRTT or prefix counts would display. The header shows process 100 and a stable peer relationship. AS numbers must match for a session; this output confirms they do, since updates are being exchanged normally.
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
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.