hardMultiple Choice
300-410 Practice Question: Runs the following command on Router R1: R1# show…
A network engineer runs the following command on Router R1:
R1# show ip sla statistics 3
Round Trip Time (RTT) for Index 3 Latest RTT: 150 ms Latest RTT (milliseconds): 150 Latest RTT (microseconds): 150000 Number of successes: 80 Number of failures: 20 Operation time to live: Forever Output: OK
R1# show track 1 Track 1 IP SLA 3 reachability
Reachability is Up 2 changes, last change 00:00:10 Latest operation return code: OK Latest RTT (milliseconds): 150
Tracked by:
ip route 0.0.0.0 0.0.0.0 192.168.1.1 track 1Based on this output, which statement is correct?
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 IP SLA operation is considered reachable, and the tracked static route is active.
The track shows 'Reachability is Up' based on IP SLA 3. The IP SLA statistics show successes and failures, but the latest return code is OK, so the track is up. This means the static route is active. The failures (20) indicate some probes failed, but the track still considers it reachable because the threshold for reachability is likely based on a percentage or consecutive failures.
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 static route is removed because the IP SLA operation has failures.
Why it's wrong here
Track 1 reports Reachability is Up with return code OK, so the static route stays installed; the 20 failures are historical counters, not the current state. Failures would remove the route only if the track object itself went Down, which the output contradicts.
- ✓
The IP SLA operation is considered reachable, and the tracked static route is active.
Why this is correct
The tracked object reports reachability Up with return code OK, so the static default route via 192.168.1.1 remains installed in the routing table. IP SLA index 3 has 80 successes against 20 failures, and the track state satisfies the reachability constraint the route's track 1 dependency requires.
- ✗
The IP SLA operation has a 20% failure rate, so the track should be down.
Why it's wrong here
IP SLA tracking uses the latest operation return code and threshold, not a cumulative success-to-failure ratio; 80 successes and 20 failures do not force the track down. A percentage-based threshold would be the correct mechanism only if the track were configured with a threshold percentage.
- ✗
The IP SLA operation is using a wrong source address.
Why it's wrong here
The output shows Output: OK and return code OK, so the operation is functioning; no source-address mismatch is reported. Wrong source addressing would surface as timeouts or failures, and it would be the correct diagnosis only if the statistics showed consistent operation failures.
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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.