The correct answer is that the IP SLA operation has a high failure rate, but the track remains up due to the configured threshold parameters. This occurs because the track’s reachability state is not solely determined by the IP SLA’s return code of “Over threshold”; instead, the track uses its own threshold logic—such as requiring a specific number of consecutive failures or a failure percentage above a defined limit before declaring the tracked object down. In the output, the IP SLA shows 30 successes and 70 failures, yet the track is still Up, indicating the threshold for transitioning to Down has not been met (e.g., it may require 100% failures or a higher consecutive failure count). On the Cisco CCNP ENARSI 300-410 exam, this scenario tests your understanding of how IP SLA over threshold and track up behavior interact, often appearing as a trap where candidates assume any “Over threshold” return code means the track is down. A key memory tip: “Threshold up, track up—unless the failure count fills the cup.”
300-410 IP SLA Practice Question
This 300-410 practice question tests your understanding of ip sla. 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:
R1# show ip sla statistics 7
Round Trip Time (RTT) for Index 7
Latest RTT: 500 ms
Latest RTT (milliseconds): 500
Latest RTT (microseconds): 500000
Number of successes: 30
Number of failures: 70
Operation time to live: Forever
Output: Over threshold
R1# show track 5
Track 5
IP SLA 7 reachability
Reachability is Up
1 change, last change 00:20:00
Latest operation return code: Over threshold
Latest RTT (milliseconds): 500
Tracked by:
ip route 0.0.0.0 0.0.0.0 192.168.5.1 track 5
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 has a high failure rate, but the track remains up due to the configured threshold parameters.
The track is up despite the 'Over threshold' return code. This can happen if the track is configured to use a different threshold for reachability (e.g., based on number of consecutive successes or a different percentage). The IP SLA has 30 successes and 70 failures, but the track still considers it up, likely because the threshold for down is higher (e.g., 100% failures).
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.
✗
The track is down because the IP SLA return code is 'Over threshold'.
Why it's wrong here
The track shows 'Up', so it is not down.
✓
The IP SLA operation has a high failure rate, but the track remains up due to the configured threshold parameters.
Why this is correct
The track is up, meaning the failure rate is within the acceptable range defined in the track configuration.
Related concept
Read the scenario before looking for a memorised answer.
✗
The static route is removed because of the threshold violation.
Why it's wrong here
The track is up, so the static route is still installed.
✗
The IP SLA operation is not responding because of a network issue.
Why it's wrong here
The operation is responding with RTT values, so it is not a no-connection issue.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
The track shows 'Up', so it is not down.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 practitioner preparing for the 300-410 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 300-410 question in full detail.
Identify which 300-410 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
IP SLA — This question tests IP SLA — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The IP SLA operation has a high failure rate, but the track remains up due to the configured threshold parameters. — The track is up despite the 'Over threshold' return code. This can happen if the track is configured to use a different threshold for reachability (e.g., based on number of consecutive successes or a different percentage). The IP SLA has 30 successes and 70 failures, but the track still considers it up, likely because the threshold for down is higher (e.g., 100% failures).
What should I do if I get this 300-410 question wrong?
Identify which 300-410 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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