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350-401 Practice Question: Which three statements about IP SLA threshold…
Which three statements about IP SLA threshold configuration and reaction are true? (Choose three.)
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 is used to define rising and falling threshold values for an IP SLA operation.
IP SLA allows configuring rising and falling thresholds to trigger events. The 'reaction-configuration' command sets the threshold values and the action to take when a threshold is crossed. The 'reaction-trigger' command is used to associate the reaction with a specific action, such as enabling a backup route. The threshold violation can be used to trigger an SNMP trap, which is a common method for network management systems to receive alerts. The threshold is not based on the number of probes sent, but on the measured values like delay or jitter. The reaction does not automatically change the probe schedule; it triggers an external action.
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 is used to define rising and falling threshold values for an IP SLA operation.
Why this is correct
Correct because this command configures the threshold values and the action (e.g., trap) when the threshold is crossed.
- ✓
The 'reaction-trigger' command associates a threshold violation with an action such as enabling a static route.
Why this is correct
Correct because this command links the reaction to an external action, like enabling a backup route via the 'ip route' command with the 'track' option.
- ✓
When a rising threshold is exceeded, an SNMP trap can be sent to the network management system.
Why this is correct
Correct because one of the configurable actions in the reaction-configuration is to send an SNMP trap when a threshold is crossed.
- ✗
The threshold is based on the number of probes sent within a specified time interval.
Why it's wrong here
Incorrect because the threshold is based on the measured value (e.g., delay in milliseconds, jitter, packet loss percentage), not the count of probes.
- ✗
If a threshold is violated, the IP SLA operation automatically changes its probe schedule to a higher frequency.
Why it's wrong here
Incorrect because threshold violation triggers an external action (like a trap or route change), but does not modify the probe schedule itself.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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