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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 uses it to track a static route. The engineer also configures a backup static route with a higher administrative distance. The engineer notices that when the primary route is removed due to IP SLA failure, the backup route is installed, but when the IP SLA operation recovers, the primary route is not reinstalled. The show ip sla statistics shows the operation is 'Active' and 'Success'. The show track shows the track object is 'Up'. 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: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.

A
The primary static route has a higher administrative distance than the backup route.
If the primary route has a higher AD, it will not be installed even when the track object is up, because the backup route is preferred.
B
The IP SLA operation has a frequency that is too low, causing a delay in detection of recovery.
Why wrong: The track object is up, so recovery is detected.
C
The track object has a 'delay up' configured, causing a delay before the primary route is reinstalled.
Why wrong: The track object is already up, so delay is not the issue.
D
The backup static route is configured with a permanent keyword, preventing the primary route from being reinstalled.
Why wrong: The permanent keyword prevents the route from being removed, but it does not prevent a better route from being installed.

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 primary static route has a higher administrative distance than the backup route.

When a tracked static route is removed and the backup route is installed, the primary route may not be reinstalled if the primary route's administrative distance is not lower than the backup route. However, in this scenario, the track object is up, so the primary route should be reinstalled. The most likely edge case is that the primary static route has a higher administrative distance than the backup route, which would prevent it from being reinstalled even when the track object is up. This can happen if the engineer misconfigured the AD values.

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 primary static route has a higher administrative distance than the backup route.
Why this is correct
If the primary route has a higher AD, it will not be installed even when the track object is up, because the backup route is preferred.
Clue confirmation
The clue words "most likely", "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The IP SLA operation has a frequency that is too low, causing a delay in detection of recovery.
Why it's wrong here
The track object is up, so recovery is detected.
✗
The track object has a 'delay up' configured, causing a delay before the primary route is reinstalled.
Why it's wrong here
The track object is already up, so delay is not the issue.
✗
The backup static route is configured with a permanent keyword, preventing the primary route from being reinstalled.
Why it's wrong here
The permanent keyword prevents the route from being removed, but it does not prevent a better route from being installed.

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

Keyword trap
The permanent keyword prevents the route from being removed, but it does not prevent a better route from being installed.

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 primary static route has a higher administrative distance than the backup route. — When a tracked static route is removed and the backup route is installed, the primary route may not be reinstalled if the primary route's administrative distance is not lower than the backup route. However, in this scenario, the track object is up, so the primary route should be reinstalled. The most likely edge case is that the primary static route has a higher administrative distance than the backup route, which would prevent it from being reinstalled even when the track object is up. This can happen if the engineer misconfigured the AD values.

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", "primary". 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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