- A
The output displays the number of packets that matched each class in the CoPP policy.
Correct. The command shows per-class packet and byte counters for matched traffic.
- B
The output includes the number of packets dropped by each class due to policing.
Correct. The command displays drop counters for each class where a police or drop action is configured.
- C
The output shows the routing table entries that are affected by the CoPP policy.
Why wrong: Incorrect. The command does not display routing table information; it only shows CoPP policy statistics.
- D
The output displays the CoPP policy applied to each physical interface.
Why wrong: Incorrect. CoPP is applied to the control plane, not physical interfaces. 'show policy-map interface' shows per-interface policies.
- E
The output includes the ARP cache entries that are protected by CoPP.
Why wrong: Incorrect. ARP cache is not displayed by this command; it shows only CoPP policy statistics.
Understanding show policy-map control-plane Output for CoPP
This 300-410 practice question tests your understanding of control plane policing (copp). 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.
Which TWO statements about the 'show policy-map control-plane' command output are true? (Choose TWO.)
Quick Answer
The correct answer is that the output includes the number of packets dropped by each class due to policing. This is true because the show policy-map control-plane command reveals the applied Control Plane Policing (CoPP) policy, displaying per-class statistics such as classified packets, bytes, and specifically the drop counts resulting from the configured police action. On the Cisco CCNP ENARSI 300-410 exam, this command tests your ability to verify that CoPP is protecting the control plane from excessive traffic without disrupting legitimate protocols; a common trap is confusing this output with show policy-map interface, which shows per-interface statistics rather than control-plane class maps. Remember that CoPP operates on the control plane itself, not on individual interfaces, so the drop counters here reflect packets discarded by the policy before they reach the CPU. A helpful memory tip is "CoPP drops are CPU saves"—if you see drop counts climbing in the control-plane policy, the router is successfully throttling unwanted traffic to protect its processor.
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 output displays the number of packets that matched each class in the CoPP policy.
Option A is correct because the 'show policy-map control-plane' command output displays per-class packet statistics, including the number of packets that matched each class in the Control Plane Policing (CoPP) policy. This allows administrators to verify which traffic types are being classified and how much traffic is hitting the control plane.
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.
- ✓
The output displays the number of packets that matched each class in the CoPP policy.
Why this is correct
Correct. The command shows per-class packet and byte counters for matched traffic.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
The output includes the number of packets dropped by each class due to policing.
Why this is correct
Correct. The command displays drop counters for each class where a police or drop action is configured.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The output shows the routing table entries that are affected by the CoPP policy.
Why it's wrong here
Incorrect. The command does not display routing table information; it only shows CoPP policy statistics.
- ✗
The output displays the CoPP policy applied to each physical interface.
Why it's wrong here
Incorrect. CoPP is applied to the control plane, not physical interfaces. 'show policy-map interface' shows per-interface policies.
- ✗
The output includes the ARP cache entries that are protected by CoPP.
Why it's wrong here
Incorrect. ARP cache is not displayed by this command; it shows only CoPP policy statistics.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between CoPP (control plane-wide policy) and per-interface QoS policies, leading candidates to incorrectly assume that 'show policy-map control-plane' shows interface-level details.
Trap categories for this question
Command / output trap
Incorrect. The command does not display routing table information; it only shows CoPP policy statistics.
Detailed technical explanation
How to think about this question
CoPP uses MQC (Modular QoS CLI) to classify control plane traffic into classes and apply policing actions. The 'show policy-map control-plane' output shows counters for conforming and exceeding packets, which are critical for tuning police rates to avoid dropping legitimate protocol traffic like OSPF hellos or BGP keepalives. In real-world scenarios, misconfigured CoPP can cause routing protocol flaps if the police rate is too low.
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.
What to study next
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FAQ
Questions learners often ask
What does this 300-410 question test?
Control Plane Policing (CoPP) — This question tests Control Plane Policing (CoPP) — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The output displays the number of packets that matched each class in the CoPP policy. — Option A is correct because the 'show policy-map control-plane' command output displays per-class packet statistics, including the number of packets that matched each class in the Control Plane Policing (CoPP) policy. This allows administrators to verify which traffic types are being classified and how much traffic is hitting the control plane.
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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Last reviewed: Jul 4, 2026
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