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300-410 Practice Question: Consider this IP SLA configuration on router R3:…
Consider this IP SLA configuration on router R3:
ip sla 30
icmp-echo 192.168.2.1 frequency 5
ip sla schedule 30 life forever start-time now
What is missing from this configuration?
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
✓
A source IP address is missing; the router will use the outgoing interface IP.
The configuration lacks a source IP address. While optional, without a source-ip, the router uses the outgoing interface IP, which may not be desired for tracking specific paths.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
A source IP address is missing; the router will use the outgoing interface IP.
Why this is correct
Without source-ip, the router defaults to the interface IP used for the route to the destination.
- ✗
The frequency is too low; it should be at least 60 seconds.
Why it's wrong here
Frequency can be as low as 1 second.
- ✗
The destination IP is invalid; it must be a multicast address.
Why it's wrong here
Destination can be any unicast IP.
- ✗
The operation type is wrong; it should be udp-echo.
Why it's wrong here
icmp-echo is valid.
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Same concept, more angles
3 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. Examine this IP SLA configuration on router R5: ip sla 50 icmp-echo 10.20.20.1 source-ip 192.168.10.1 frequency 10 ip sla schedule 50 life forever start-time now What is the effect of this configuration?
medium- ✓ A.It will continuously monitor reachability to 10.20.20.1 from source 192.168.10.1.
- B.It will stop after 10 successful replies.
- C.It will measure jitter between the two IPs.
- D.It will only work if 10.20.20.1 is directly connected.
Why A: The configuration creates an IP SLA operation that sends ICMP echo probes to 10.20.20.1 every 10 seconds, using source IP 192.168.10.1. It starts immediately and runs forever.
Variation 2. Given the following partial configuration on router R1: ip sla 10 icmp-echo 192.168.1.1 source-ip 10.0.0.1 frequency 10 ip sla schedule 10 life forever start-time now Which statement best describes the effect of this configuration?
medium- ✓ A.It sends ICMP echo requests from 10.0.0.1 to 192.168.1.1 every 10 seconds.
- B.It sends ICMP echo requests from 192.168.1.1 to 10.0.0.1 every 10 seconds.
- C.It sends ICMP echo requests every 10 seconds but only after the first successful reply.
- D.It sends ICMP echo requests only once and then stops.
Why A: The configuration creates an IP SLA operation that sends ICMP echo probes to 192.168.1.1 every 10 seconds, using source IP 10.0.0.1. The schedule starts immediately and runs indefinitely.
Variation 3. Given this IP SLA configuration on router R4: ip sla 40 icmp-echo 10.10.10.1 source-ip 172.16.1.1 frequency 15 ip sla schedule 40 life forever start-time now Which statement is true?
medium- ✓ A.The source IP 172.16.1.1 must be configured on an interface of R4.
- B.The source IP 172.16.1.1 can be any IP address, even if not local.
- C.The operation will fail because frequency 15 is too high.
- D.The operation will use TCP instead of ICMP.
Why A: The configuration sends ICMP echo probes from 172.16.1.1 to 10.10.10.1 every 15 seconds. The source IP is explicitly set.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 300-410 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 300-410 exam.