hardMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command to troubleshoot…
A network engineer runs the following command to troubleshoot Flexible NetFlow cache usage:
R1# show flow monitor FLOW-MONITOR-1 statistics
Cache type: Normal Cache size: 1000 Current entries: 900 High Watermark: 950 Flows added: 50000 Flows aged: 49100 - Active timeout ( 1800 secs): 40000 - Inactive timeout ( 15 secs): 9000 - Event aged: 100 - Watermark aged: 0 - Emergency aged: 0
What does this output indicate?
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 cache is nearly full, with many long-lived flows causing active timeout aging. No watermark or emergency aging has occurred yet.
The cache is nearly full (900 out of 1000 entries). The high watermark is 950, which is close to the cache size. Most flows are aged due to active timeout (40000), indicating long-lived flows. The cache is under pressure but not yet experiencing watermark or emergency aging.
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 cache is mostly empty and flows are aging normally.
Why it's wrong here
The cache is 90% full (900/1000), which is nearly full.
- ✓
The cache is nearly full, with many long-lived flows causing active timeout aging. No watermark or emergency aging has occurred yet.
Why this is correct
900 entries used out of 1000, and 40000 flows aged due to active timeout, indicating long flows. Watermark and emergency aging counters are zero.
- ✗
Emergency aging is occurring because the cache is full.
Why it's wrong here
Emergency aged is 0, so no emergency aging.
- ✗
Watermark aging has occurred, indicating the cache size needs to be increased.
Why it's wrong here
Watermark aged is 0, so no watermark aging.
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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.