mediumMultiple Choice
350-401 Practice Question: Review this IP SLA configuration on Router R1: ip…
Review this IP SLA configuration on Router R1:
ip sla 6
icmp-echo 10.6.6.6 frequency 10
ip sla schedule 6 life forever start-time now ip sla reaction-configuration 6 react timeout threshold-type immediate action-type triggerOnly
Which statement is true about the 'threshold-type immediate' parameter?
⚠ Common exam trap
Cisco often tests the distinction between 'immediate' and 'consecutive' threshold types, and the trap here is that candidates may confuse 'immediate' with a delayed or cumulative condition, assuming it requires multiple failures or a specific time window.
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
✓
It triggers an event immediately when a timeout occurs.
The 'threshold-type immediate' parameter in an IP SLA reaction configuration causes the router to trigger the specified action (in this case, 'triggerOnly') as soon as a single probe timeout occurs, without waiting for any additional probes or a delay. This is correct because the configuration explicitly sets the threshold type to immediate, meaning the reaction is instantaneous upon detecting the timeout event.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
It triggers an event immediately when a timeout occurs.
Why this is correct
With IP SLA reaction-configuration, the 'immediate' threshold type is designed to trigger the event on the very first timeout occurrence, with no dependency on prior probe results. This means a single failed probe immediately generates the configured action (e.g., SNMP trap or track object state change), enabling the fastest possible detection of a failure. It is the default-like behavior for urgent alerting, but it does not consider any subsequent probe outcomes.
- ✗
It triggers an event after a delay of 10 seconds.
Why it's wrong here
This is incorrect because 'immediate' contains no delay or hold-down timer; the event fires as soon as the timeout is detected, rather than waiting 10 seconds. A 10-second delay would have to be engineered artificially by adjusting the probe interval or by embedding a separate EEM applet, but it is not a property of the 'immediate' threshold type. In fact, any delay before triggering would contradict the 'immediate' semantics.
- ✗
It triggers an event only if the timeout persists for 5 consecutive probes.
Why it's wrong here
This answer describes a different threshold mechanism, such as 'threshold-type consecutive 5' (or 'xof 5' in a more ambiguous sense), which requires the condition to be observed across a specified sequence of probes before firing. With 'immediate', however, the event is triggered on the first probe that times out, so there is never a requirement for five consecutive failures. Therefore, this option mischaracterizes the fundamental single-occurrence nature of 'immediate'.
- ✗
It triggers an event only if the timeout occurs within the first 10 seconds.
Why it's wrong here
This is wrong because 'immediate' does not impose any time-based window, such as the first 10 seconds; it fires on any timeout regardless of when it occurs during the IP SLA operation. The 'immediate' threshold type is time-agnostic, responding identically whether the timeout happens at the first probe or after many probes. A 10-second window would require a custom logic or a separate reaction condition, not the 'immediate' keyword itself.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-401 exam.