easyMultiple Choice
300-410 Practice Question: Runs the following command to troubleshoot an IP…
A network engineer runs the following command to troubleshoot an IP SLA issue:
R1# show ip sla statistics 10
Round Trip Time (RTT) for Index 10 Latest RTT: 12 ms Latest RTT (milliseconds): 12 Latest RTT (microseconds): 12000 Last operation start time: 12:34:56.789 UTC Mon Mar 1 2021 Last operation return code: OK Number of successes: 100 Number of failures: 0 Operation time to live: Forever
What does this output indicate?
⚠ Common exam trap
300-410 often tests whether candidates misinterpret a low RTT as a problem or confuse a healthy return code with a timeout, so they must read the return code and failure counters carefully.
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 IP SLA operation is working correctly with no failures.
The output shows 'Last operation return code: OK', 100 successes, and 0 failures, indicating the IP SLA operation is functioning correctly. The latest RTT of 12 ms is a normal, healthy round-trip time, not a failure condition.
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 IP SLA operation has failed because the RTT is too low.
Why it's wrong here
A 12 ms RTT is a healthy measurement, and the output shows 100 successes, zero failures and a return code of OK, so the operation is succeeding. A low RTT would only suggest failure if a threshold were configured and breached, which is not shown.
- ✓
The IP SLA operation is working correctly with no failures.
Why this is correct
Latest RTT of 12 ms with return code OK, 100 successes and zero failures confirms the operation completes successfully each cycle. The probe target responds within acceptable latency, so no packet loss or timeout condition exists on this IP SLA operation.
- ✗
The IP SLA operation has timed out and needs to be reconfigured.
Why it's wrong here
The statistics show 100 successes, zero failures and a return code of OK, so no timeout has occurred. Timeouts would increment the failure counter and show a timeout return code. Reconfiguration is warranted when an operation is administratively disabled or its schedule has expired, not when it is running successfully.
- ✗
The IP SLA operation is not configured for this index.
Why it's wrong here
Statistics for index 10 are displayed, proving the operation exists and is running. An unconfigured index returns an error such as 'Entry not found' rather than RTT values and success counters. This option would apply when querying an index that was never created with the ip sla command.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
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