Question 349 of 2,152

IP SLA →hardMultiple ChoiceObjective-mapped

IP SLA Tracking Delay for Static Routes

This 300-410 practice question tests your understanding of ip sla. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 configures IP SLA tracking for a static route on a Cisco router. The IP SLA operation is configured with a threshold of 100 ms and a timeout of 5000 ms. The tracked object is configured with a delay of 5 seconds for both up and down transitions. The engineer notices that when the remote host becomes unreachable, the static route is not removed from the routing table immediately. 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 IP SLA operation is still in the 'pending' state and has not yet timed out.
Why wrong: The timeout of 5000 ms is much longer than the delay; the operation would have timed out before the delay expires.
B
The tracked object delay of 5 seconds for down transition causes a 5-second wait before the route is removed.
The delay down command in the tracked object introduces a hold-down period before the object state changes, so the route remains for that duration.
C
The static route has a higher administrative distance than the IP SLA tracked route, so it remains preferred.
Why wrong: The tracked static route is the same route; the tracking only removes it if the object goes down.
D
The IP SLA operation is configured with a frequency that is too low, causing a delay in detection.
Why wrong: Frequency affects how often probes are sent, but the delay is separate from frequency.

Full breakdown with real-world context →

Quick Answer

The answer is that the tracked object delay of 5 seconds for down transition causes a 5-second wait before the static route is removed. This is because the IP SLA tracking delay configuration introduces a deliberate hold time before the tracked object changes its state from up to down, even after the IP SLA operation itself has failed due to the timeout or threshold being exceeded. On the Cisco CCNP ENARSI 300-410 exam, this concept tests your understanding of how IP SLA tracking interacts with static route removal, specifically that the delay is designed to prevent route flapping but can mislead engineers into thinking the tracking is broken. A common trap is confusing the IP SLA operation’s timeout (5000 ms) with the tracked object’s delay (5 seconds); the timeout governs how long the router waits for a reply, while the delay governs how long the router waits to act on a state change. Memory tip: think of the delay as a “debounce timer” — it filters out brief failures to keep the route stable, but it also means the route will linger for exactly that delay period after a real failure.

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 tracked object delay of 5 seconds for down transition causes a 5-second wait before the route is removed.

The IP SLA tracking delay configuration introduces a delay before the tracked object changes state; this is designed to prevent route flapping but can cause the static route to remain in the routing table for the configured delay period after the IP SLA operation fails.

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 IP SLA operation is still in the 'pending' state and has not yet timed out.
Why it's wrong here
The timeout of 5000 ms is much longer than the delay; the operation would have timed out before the delay expires.
✓
The tracked object delay of 5 seconds for down transition causes a 5-second wait before the route is removed.
Why this is correct
The delay down command in the tracked object introduces a hold-down period before the object state changes, so the route remains for that duration.
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 static route has a higher administrative distance than the IP SLA tracked route, so it remains preferred.
Why it's wrong here
The tracked static route is the same route; the tracking only removes it if the object goes down.
✗
The IP SLA operation is configured with a frequency that is too low, causing a delay in detection.
Why it's wrong here
Frequency affects how often probes are sent, but the delay is separate from frequency.

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.

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 tracked object delay of 5 seconds for down transition causes a 5-second wait before the route is removed. — The IP SLA tracking delay configuration introduces a delay before the tracked object changes state; this is designed to prevent route flapping but can cause the static route to remain in the routing table for the configured delay period after the IP SLA operation fails.

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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