Question 1,108 of 2,152

IP SLA →hardMultiple ChoiceObjective-mapped

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.

An engineer configures IP SLA with an ICMP echo operation and tracks it with a static route. The IP SLA operation is configured with a source interface of Loopback0. The engineer notices that when the remote host becomes unreachable, the static route is removed, but when the remote host becomes reachable again, the static route is not reinstalled immediately. The show ip sla statistics shows the operation is 'Active' and 'Success'. Which is the most likely explanation?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Clue: "immediately / without restart"
Why it matters: Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.

A
The static route has a higher administrative distance than the default route, so it is not installed.
Why wrong: The static route is the only route; AD is not the issue.
B
The track object has a 'delay up' configured, causing a delay before the route is reinstalled.
The delay up command in the track object introduces a hold-down period before the object state changes to up, so the route is not reinstalled immediately.
C
The IP SLA operation uses a source interface that is not reachable from the remote host, causing asymmetric routing.
Why wrong: The operation shows success, so reachability is not the issue.
D
The IP SLA operation has a frequency that is too high, causing the router to ignore the results.
Why wrong: Frequency does not cause ignored results.

Full breakdown with real-world context →

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 track object has a 'delay up' configured, causing a delay before the route is reinstalled.

When an IP SLA operation uses a source interface, the operation may fail if that interface is down, but more importantly, the track object may have a delay configured for up transitions. Additionally, the static route may have a higher administrative distance that prevents it from being reinstalled if another route to the same prefix exists. However, the most common edge case is that the track object has a 'delay up' configured, which delays the route installation after the operation recovers.

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 static route has a higher administrative distance than the default route, so it is not installed.
Why it's wrong here
The static route is the only route; AD is not the issue.
✓
The track object has a 'delay up' configured, causing a delay before the route is reinstalled.
Why this is correct
The delay up command in the track object introduces a hold-down period before the object state changes to up, so the route is not reinstalled immediately.
Clue confirmation
The clue words "most likely", "immediately / without restart" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The IP SLA operation uses a source interface that is not reachable from the remote host, causing asymmetric routing.
Why it's wrong here
The operation shows success, so reachability is not the issue.
✗
The IP SLA operation has a frequency that is too high, causing the router to ignore the results.
Why it's wrong here
Frequency does not cause ignored results.

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 operation shows success, so reachability is not the issue.

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.

What to study next

Got this wrong? Here's your next step.

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.

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FAQ

Questions learners often ask

What does this 300-410 question test?

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 track object has a 'delay up' configured, causing a delay before the route is reinstalled. — When an IP SLA operation uses a source interface, the operation may fail if that interface is down, but more importantly, the track object may have a delay configured for up transitions. Additionally, the static route may have a higher administrative distance that prevents it from being reinstalled if another route to the same prefix exists. However, the most common edge case is that the track object has a 'delay up' configured, which delays the route installation after the operation recovers.

What should I do if I get this 300-410 question wrong?

Are there clue words in this question I should notice?

Yes — watch for: "most likely", "immediately / without restart". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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