hardMultiple ChoiceObjective-mapped
CCNP Practice Question: An engineer configures IP SLA 10 to monitor the…
An engineer configures IP SLA 10 to monitor the reachability of a next-hop router at 10.1.1.1 using ICMP echo. The IP SLA is used as a track object for a static route. The engineer notices that the IP SLA operation shows 'State: Active' and 'Latest RTT: 1 ms', but the track object shows 'Track 10: up' even though the next-hop router is actually unreachable from the source. The source router has a default route pointing to 10.1.1.1. What is the most likely cause?
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 using the wrong source IP address; it should be sourced from the interface that connects to the next-hop router.
If the source router has a default route pointing to the same next-hop, the IP SLA probe packets may be sent out using that default route, which could lead to the probe being sent to a different path or looping. However, the more direct cause is that the IP SLA probe is sourced from an interface that is not the one that would be used to reach the next-hop, so the probe may succeed even if the next-hop is unreachable via the expected path.
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 is using the wrong source IP address; it should be sourced from the interface that connects to the next-hop router.
Why this is correct
Correct. If the IP SLA probe is sourced from a different interface (e.g., loopback), it may take a different path and succeed even if the next-hop router is unreachable via the intended interface.
- ✗
The IP SLA operation must be configured with a 'timeout' value lower than the RTT to force a failure.
Why it's wrong here
Incorrect because the RTT is 1 ms, so a timeout would not help; the issue is that the probe is succeeding when it should not.
- ✗
The track object must be configured with a 'down' delay to prevent flapping.
Why it's wrong here
Incorrect because the track object is up when it should be down; a delay would not change the state.
- ✗
The static route must be configured with a higher administrative distance to allow the IP SLA to remove it.
Why it's wrong here
Incorrect because the administrative distance does not affect the IP SLA probe's ability to detect reachability.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 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 350-401 exam.