The answer is that CoPP is rate-limiting traffic to 8000 bps and not dropping any packets. This is correct because the output shows the police statement with a committed information rate (CIR) of 8000 bps, and all 140,091 packets have been counted as conforming, meaning they fell within the configured burst parameters and were transmitted; the exceeded and violated counters remain at zero, confirming no drops occurred. On the Cisco CCNP ENARSI 300-410 exam, this command tests your ability to verify CoPP effectiveness by distinguishing between conforming, exceeding, and violating actions—a common trap is assuming any policer with a CIR must be dropping traffic, but the drop counters must be checked. Remember the memory tip: "Conformed means transmitted, exceeded means dropped; if both exceeded and violated are zero, the policer is not yet throttling."
300-410 Device Management Practice Question
This 300-410 practice question tests your understanding of device management. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 to troubleshoot Control Plane Policing (CoPP):
R1# show policy-map control-plane input class class-default
Class-map: class-default (match-any)
140091 packets, 12345678 bytes
5 minute offered rate 1000 bps, drop rate 0 bps
Match: any
police:
cir 8000 bps, bc 1500 bytes
conformed 140091 packets, 12345678 bytes; actions:
transmit
exceeded 0 packets, 0 bytes; actions:
drop
violated 0 packets, 0 bytes; actions:
drop
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
CoPP is rate-limiting traffic to 8000 bps and not dropping any packets.
The output shows that the CoPP policy on the control-plane input class-default is policing traffic to 8000 bps. All packets are conforming and being transmitted, with no drops.
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.
✗
CoPP is dropping all traffic to the control plane.
Why it's wrong here
No packets are exceeded or violated; all are transmitted.
✓
CoPP is rate-limiting traffic to 8000 bps and not dropping any packets.
Why this is correct
The police cir is 8000 bps, and all packets conform, so they are transmitted.
Related concept
Read the scenario before looking for a memorised answer.
✗
CoPP is not configured; the class-default shows no action.
Why it's wrong here
The police action is configured and active.
✗
CoPP is dropping packets due to exceeding the rate.
Why it's wrong here
Exceeded and violated counts are zero.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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.
Identify which 300-410 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Device Management — This question tests Device Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: CoPP is rate-limiting traffic to 8000 bps and not dropping any packets. — The output shows that the CoPP policy on the control-plane input class-default is policing traffic to 8000 bps. All packets are conforming and being transmitted, with no drops.
What should I do if I get this 300-410 question wrong?
Identify which 300-410 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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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