Question 1,494 of 2,152

IP SLA →hardMultiple SelectObjective-mapped

Quick Answer

The correct answer involves the `reaction-configuration` command with `react connectionLoss` and `action trigger`, which forces a tracked object to change state immediately upon connectivity failure. This works because the `reaction-configuration` command defines both the monitored condition—using the `react` keyword for events like `connectionLoss` or `timeout—and the response via the `action` keyword, where `trigger` actively alters the track state rather than just logging a trap. On the Cisco CCNP ENARSI 300-410 exam, this topic tests your ability to differentiate between default behavior (`trapOnly`) and proactive state changes, a common trap being the assumption that `react rtt` supports `action trigger` directly—it does not, as RTT uses threshold-based triggers instead. Remember the memory tip: “Loss triggers, RTT thresholds”—if you see `connectionLoss`, think `trigger`; if you see `rtt`, think thresholds and traps.

300-410 IP SLA Practice Question

This 300-410 practice question tests your understanding of ip sla. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.

Which TWO statements about IP SLA reaction configuration and event monitoring are true? (Choose TWO.)

Question 1hardmulti select

Full question →

A
The 'reaction-configuration' command can be used to generate a syslog trap when an IP SLA operation times out.
Correct. Using 'reaction-configuration' with 'react timeout' and 'action trapOnly' will generate a syslog trap on timeout.
B
The 'reaction-configuration' command with 'react connectionLoss' and 'action trigger' will cause the track object to change state immediately upon loss of connectivity.
Correct. The 'action trigger' option causes the reaction to directly affect the track object state, which is used for fast convergence.
C
The default action for a reaction configuration is 'trigger'.
Why wrong: Incorrect. The default action is 'trapOnly', not 'trigger'.
D
The 'reaction-configuration' command supports the 'react rtt' option with 'action trigger' to immediately change the track state when RTT exceeds a threshold.
Why wrong: Incorrect. The 'react rtt' option uses threshold-based monitoring and requires the 'threshold' command; 'action trigger' is not used with 'react rtt' in the same way. The 'action trigger' is typically used with 'connectionLoss' or 'timeout'.
E
Multiple reaction configurations can be applied to the same IP SLA operation.
Why wrong: Incorrect. Only one reaction configuration can be applied per IP SLA operation; multiple conditions must be combined using the 'react' keyword with multiple options.

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 'reaction-configuration' command can be used to generate a syslog trap when an IP SLA operation times out.

The 'reaction-configuration' command allows specifying a type (e.g., timeout, threshold) and an action (e.g., trapOnly, trigger). The 'react' keyword defines the condition to monitor, such as 'connectionLoss' or 'timeout'. The 'action' keyword defines what happens when the condition is met. The default action is 'trapOnly', meaning only a syslog trap is generated. The 'reaction-configuration' does not support 'react rtt' with 'action trigger' directly; instead, 'react rtt' uses threshold-based triggers.

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 'reaction-configuration' command can be used to generate a syslog trap when an IP SLA operation times out.
Why this is correct
Correct. Using 'reaction-configuration' with 'react timeout' and 'action trapOnly' will generate a syslog trap on timeout.
Related concept
Read the scenario before looking for a memorised answer.
✓
The 'reaction-configuration' command with 'react connectionLoss' and 'action trigger' will cause the track object to change state immediately upon loss of connectivity.
Why this is correct
Correct. The 'action trigger' option causes the reaction to directly affect the track object state, which is used for fast convergence.
Related concept
Read the scenario before looking for a memorised answer.
✗
The default action for a reaction configuration is 'trigger'.
Why it's wrong here
Incorrect. The default action is 'trapOnly', not 'trigger'.
✗
The 'reaction-configuration' command supports the 'react rtt' option with 'action trigger' to immediately change the track state when RTT exceeds a threshold.
Why it's wrong here
Incorrect. The 'react rtt' option uses threshold-based monitoring and requires the 'threshold' command; 'action trigger' is not used with 'react rtt' in the same way. The 'action trigger' is typically used with 'connectionLoss' or 'timeout'.
✗
Multiple reaction configurations can be applied to the same IP SLA operation.
Why it's wrong here
Incorrect. Only one reaction configuration can be applied per IP SLA operation; multiple conditions must be combined using the 'react' keyword with multiple options.

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
Incorrect. Only one reaction configuration can be applied per IP SLA operation; multiple conditions must be combined using the 'react' keyword with multiple options.
Command / output trap
Incorrect. The 'react rtt' option uses threshold-based monitoring and requires the 'threshold' command; 'action trigger' is not used with 'react rtt' in the same way. The 'action trigger' is typically used with 'connectionLoss' or 'timeout'.

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 'reaction-configuration' command can be used to generate a syslog trap when an IP SLA operation times out. — The 'reaction-configuration' command allows specifying a type (e.g., timeout, threshold) and an action (e.g., trapOnly, trigger). The 'react' keyword defines the condition to monitor, such as 'connectionLoss' or 'timeout'. The 'action' keyword defines what happens when the condition is met. The default action is 'trapOnly', meaning only a syslog trap is generated. The 'reaction-configuration' does not support 'react rtt' with 'action trigger' directly; instead, 'react rtt' uses threshold-based triggers.

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

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

About these practice questions

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Same concept, more angles

1 more ways this is tested on 300-410

These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.

Variation 1. Which TWO statements correctly describe the behavior of IP SLA with the 'threshold' and 'timeout' configuration? (Choose TWO.)

hard

✓ A.The 'threshold' value must be less than the 'timeout' value for the reaction to trigger correctly.
✓ B.The 'timeout' value must be less than the 'frequency' value to prevent overlapping probes.
C.The default timeout for an IP SLA ICMP echo operation is 10000 milliseconds.
D.The 'threshold' value is used to set the maximum number of retries before the operation is considered failed.
E.If the 'timeout' is set to 3000 ms and the 'frequency' is set to 5 seconds, the probe will never overlap.

Why A: The 'threshold' command sets the rising threshold for reaction triggering, while 'timeout' specifies how long the probe waits for a response before marking the operation as a failure. The timeout must be less than the frequency interval; otherwise, the probe may overlap. The default timeout is 5000 ms, not 10000 ms.

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