The answer is that all EIGRP neighbors are fully operational with no issues. This is correct because the `show ip eigrp neighbors` output displays three neighbors with hold timers well above zero, SRTT values of just 1–2 milliseconds, RTO consistently at 200 ms, and a Q count of 0 for each entry—these metrics collectively indicate stable adjacencies with no queued packets, packet loss, or congestion. On the Cisco CCNP ENARSI 300-410 exam, EIGRP neighbor verification questions test your ability to interpret these fields quickly, often using a trap where a high Q count or a zero hold timer suggests a problem, while low SRTT and RTO values confirm healthy operation. A common memory tip is to remember the acronym "HURTS" for the key columns: Hold, Uptime, RTO, Timer (SRTT), and Seq—if Hold is positive, Q is 0, and SRTT is low, the neighbor is fully converged.
300-410 Device Access Control Practice Question
This 300-410 practice question tests your understanding of device access control. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A network engineer runs the following command on Router R1:
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.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Related concept
Read the scenario before looking for a memorised answer.
✗
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.
Common exam traps
Common exam trap: answer the scenario, not the keyword
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.
Detailed technical explanation
How to think about this question
EIGRP uses the Reliable Transport Protocol (RTP) to manage packet delivery, with SRTT measuring round-trip time and RTO derived from SRTT for retransmissions. A Q count of 0 indicates no packets waiting to be sent, confirming reliable communication. In real-world scenarios, a high SRTT or non-zero Q count often points to link congestion or neighbor instability, which is absent here.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A network engineer at a university connects two campus buildings via a fibre link. Both routers run OSPF, but no adjacency forms — even though both routers can ping each other. The engineer finds one router is in area 0 and the other in area 1. OSPF adjacency requires matching area numbers, hello/dead timers, and network type. IP reachability alone is not enough.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 300-410 question in full detail.
Device Access Control — This question tests Device Access Control — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: 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.
What should I do if I get this 300-410 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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