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350-401 Practice Question: Examine the following IP SLA configuration: ip…
Examine the following IP SLA configuration:
ip sla 1
icmp-echo 10.1.1.1 frequency 10
ip sla schedule 1 life forever start-time now
What is the effect of this configuration?
⚠ Common exam trap
Cisco often tests the distinction between 'frequency' (interval between probes) and 'timeout' (wait time for a reply), and the fact that ICMP echo IP SLA does not require a responder, unlike UDP jitter or TCP connect operations.
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 sends ICMP echo requests to 10.1.1.1 every 10 seconds, starting immediately and running forever.
The configuration creates an IP SLA operation (ID 1) that uses ICMP echo to monitor reachability to 10.1.1.1. The 'frequency 10' command sets the interval between probes to 10 seconds, and 'ip sla schedule 1 life forever start-time now' starts the operation immediately and runs it indefinitely. This is the standard behavior for a basic ICMP echo IP SLA operation.
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 sends ICMP echo requests to 10.1.1.1 every 10 seconds, starting immediately and running forever.
Why this is correct
The 'frequency 10' sets the interval to 10 seconds, 'start-time now' starts it immediately, and 'life forever' keeps it running indefinitely.
- ✗
It sends ICMP echo requests to 10.1.1.1 every 10 seconds, but only for 10 minutes.
Why it's wrong here
The 'life forever' parameter makes the operation run indefinitely, not for a limited time.
- ✗
It sends ICMP echo requests to 10.1.1.1 every 60 seconds by default.
Why it's wrong here
The 'frequency 10' overrides the default of 60 seconds, setting it to 10 seconds.
- ✗
It sends ICMP echo requests to 10.1.1.1 every 10 seconds, but only if an IP SLA responder is configured on the target.
Why it's wrong here
ICMP echo operations do not require an IP SLA responder; they use standard ICMP.
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Last reviewed: Jul 4, 2026
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