The answer is that all management traffic has been transmitted without any drops. This is correct because the CoPP policing verification output shows 100 packets matched by the MANAGEMENT class-map, all counted as conformed with zero exceeded packets, and the configured action for conformed traffic is transmit. The police parameters—CIR 8000 bps and bc 1500 bytes—were sufficient for the offered rate, so no packets exceeded the threshold to trigger the drop action. On the Cisco CCNP ENARSI 300-410 exam, this scenario tests your ability to interpret the show policy-map control-plane output and distinguish between conformed and exceeded counters; a common trap is assuming that any policing configuration automatically drops traffic, but the counters must be checked to confirm actual drops. Remember the memory tip: “Conformed means carried, exceeded means ejected.”
300-410 Device Access Control Practice Question
This 300-410 practice question tests your understanding of device access control. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A network engineer runs the following command on Router R1:
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
All management traffic has been transmitted without any drops.
Option A is correct because the output shows that all 100 packets matched by the MANAGEMENT class-map were conformed (100 packets, 10000 bytes) and the action for conformed traffic is 'transmit', with zero exceeded packets. This indicates that the policing rate of 8000 bps (CIR) was sufficient for the offered traffic, and no packets were dropped. The 'exceeded 0 packets' field confirms no drops occurred.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
All management traffic has been transmitted without any drops.
Why this is correct
The 'conformed' count shows 100 packets transmitted, and 'exceeded' is 0, meaning no drops.
Related concept
Read the scenario before looking for a memorised answer.
✗
Management traffic is being dropped because the police rate is too low.
Why it's wrong here
No packets were exceeded, so no drops occurred.
✗
The CoPP policy is not applied because the control plane is not specified.
Why it's wrong here
The output shows it is applied to the control plane.
✗
The class-map MANAGEMENT is not matching any traffic.
Why it's wrong here
It matched 100 packets.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that a low police rate automatically implies drops, but the trap here is that the output must be read carefully—'exceeded 0 packets' proves no drops occurred, regardless of the configured CIR.
Trap categories for this question
Command / output trap
The output shows it is applied to the control plane.
Detailed technical explanation
How to think about this question
Control Plane Policing (CoPP) uses a Modular QoS CLI (MQC) to apply a policy-map to the control plane, protecting it from excessive traffic. The police command with cir 8000 bps and bc 1500 bytes implements a token bucket policer; the conformed action 'transmit' and exceeded action 'drop' are standard. In this output, the offered rate is 0 bps (likely due to the 5-minute average being too short or traffic bursts being small), but the packet counts confirm all traffic was conformed, meaning the policer never exceeded its token bucket.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 300-410 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 300-410 question in full detail.
Device Access Control — This question tests Device Access Control — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: All management traffic has been transmitted without any drops. — Option A is correct because the output shows that all 100 packets matched by the MANAGEMENT class-map were conformed (100 packets, 10000 bytes) and the action for conformed traffic is 'transmit', with zero exceeded packets. This indicates that the policing rate of 8000 bps (CIR) was sufficient for the offered traffic, and no packets were dropped. The 'exceeded 0 packets' field confirms no drops occurred.
What should I do if I get this 300-410 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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