easyMultiple ChoiceObjective-mapped
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 traffic
IP-EIGRP Traffic Statistics for process 100 Hellos sent/received: 500/495 Updates sent/received: 10/8 Queries sent/received: 2/1 Replies sent/received: 1/2 Acks sent/received: 8/10 Input queue high water mark: 2, Input queue depth: 0 Total packets sent: 521, received: 516
What does this output indicate?
⚠ Common exam trap
Cisco often tests the misconception that any asymmetry in hello packet counts indicates packet loss, when in fact EIGRP hellos are sent unreliably and a slight mismatch is normal due to timing differences or interface delays.
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 EIGRP process is functioning normally with no signs of congestion or issues.
The output shows a balanced exchange of EIGRP packets with no retransmissions, a low input queue depth of 0, and a high water mark of only 2. These metrics indicate the EIGRP process is stable, with no congestion, packet loss, or neighbor issues. The slight difference between hellos sent (500) and received (495) is normal due to timing or asymmetric paths and does not indicate a problem.
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 network is experiencing a high number of queries, indicating instability.
Why it's wrong here
Only 2 queries were sent, which is low and indicates stability.
- ✓
The EIGRP process is functioning normally with no signs of congestion or issues.
Why this is correct
The traffic statistics are balanced and the input queue is empty, indicating normal operation.
- ✗
There is a problem with packet loss because more hellos were sent than received.
Why it's wrong here
The difference is minimal (5 packets) and could be due to timing; it does not indicate significant loss.
- ✗
The router is not receiving acknowledgments for its updates.
Why it's wrong here
Acks received (10) is close to updates sent (10), indicating proper acknowledgment.
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.