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300-410 Practice Question: Configures a Flexible NetFlow monitor to capture…
A network engineer configures a Flexible NetFlow monitor to capture traffic on a router's WAN interface. The flow record includes 'match ipv4 source address', 'match ipv4 destination address', and 'collect counter bytes'. After applying the monitor, 'show flow monitor name MONITOR cache' shows flows, but the collector receives no data. 'show flow exporter name EXPORTER statistics' shows 'Export packets sent: 0'. What is the most likely cause?
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 flow monitor is not associated with any flow exporter.
A flow exporter must be associated with the flow monitor. If the monitor does not reference the exporter, no data is exported even if flows are cached.
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 flow exporter is configured with the wrong destination IP address.
Why it's wrong here
Wrong destination would still show packets sent (to the wrong IP) in exporter statistics.
- ✓
The flow monitor is not associated with any flow exporter.
Why this is correct
The monitor must be linked to an exporter using the 'exporter' command under the flow monitor configuration. Without it, no export occurs.
- ✗
The flow exporter is missing the 'source' interface command.
Why it's wrong here
Missing source interface would cause packets to be sent with the wrong source IP, but they would still be sent.
- ✗
The flow cache is full, preventing new exports.
Why it's wrong here
A full cache would cause drops, but exporter statistics would still show some packets sent.
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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.