easyMultiple 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 flow monitor FLOW-MONITOR-1 statistics
Monitor: FLOW-MONITOR-1 Record: netflow-original Exporter: EXPORTER-1 Cache size: 1000 Current entries: 0 Flows exported: 0 Packets exported: 0
Sampler: Not configured
Flow Monitor is not attached to any interface
Based on this output, what action should the engineer take to resolve the issue?
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
✓
Apply the flow monitor to an interface using the 'ip flow monitor FLOW-MONITOR-1 input' command.
The output explicitly states 'Flow Monitor is not attached to any interface'. The solution is to apply the flow monitor to an interface using the 'ip flow monitor' command.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure a sampler on the flow monitor.
Why it's wrong here
The output states the monitor is not attached to any interface, so no traffic reaches the cache regardless of sampling. Configuring a sampler is tempting because sampling reduces overhead on high-throughput links, and would be correct once the monitor is applied to interfaces and full flow capture is unnecessary.
- ✓
Apply the flow monitor to an interface using the 'ip flow monitor FLOW-MONITOR-1 input' command.
Why this is correct
The statistics output states the flow monitor is not attached to any interface, so no packets are monitored or exported. Binding it with ip flow monitor FLOW-MONITOR-1 input on the relevant interface activates monitoring and populates the cache.
- ✗
Increase the cache size to 2000 entries.
Why it's wrong here
Cache size is irrelevant: the monitor holds zero entries because it is not attached to any interface, so no traffic is being matched or exported. Enlarging the cache only matters when entries are being created and the cache overflows, evicting active flows before export.
- ✗
Change the record type to netflow ipv4 original.
Why it's wrong here
The record already reads netflow-original, and the stated fault is that the monitor is unattached, so changing the record alters nothing. Record selection is tempting because it controls which fields are exported, and would be correct when the required match or collect fields are missing from the exported data.
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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.