- A
show policy-map control-plane
Correct. This command displays the CoPP policy and per-class packet/drop statistics.
- B
show control-plane
Correct. This command shows aggregate control plane statistics, including total packets received and dropped.
- C
show access-lists
Correct. ACLs are often used in CoPP class-maps; this command shows match counts to verify traffic classification.
- D
show ip route
Why wrong: Incorrect. This command displays the routing table, not CoPP statistics.
- E
show interfaces
Why wrong: Incorrect. This command shows interface counters and errors, not control plane policing information.
Question 1,349 of 2,152
CoPP Verification Commands — Show Policy-Map Control-Plane | Cisco CCNP ENARSI 300-410 Explained
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 THREE commands can be used to verify the operation and effectiveness of a CoPP policy on a Cisco IOS router? (Choose THREE.)
Quick Answer
The answer is show policy-map control-plane, show control-plane, and show access-lists. These three CoPP verification commands are essential because they allow you to confirm that your control-plane policing policy is both applied and functioning correctly: show policy-map control-plane displays per-class packet and byte statistics for each class-map within the policy, show control-plane provides aggregate statistics for the entire control plane, and show access-lists verifies that the ACLs referenced in your class-maps are matching the intended traffic flows. On the Cisco CCNP ENARSI 300-410 exam, this question tests your ability to distinguish between commands that specifically monitor CoPP effectiveness versus general interface or routing commands—a common trap is selecting show interfaces or show ip route, which show unrelated counters or routing tables. For a quick memory tip, remember the three S’s: Statistics (policy-map), Summary (control-plane), and Source-matching (access-lists).
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
✓
show policy-map control-plane
The 'show policy-map control-plane' command displays the applied policy map for the control plane, including class maps, match criteria, and action statistics (e.g., packets dropped or permitted). This directly verifies that the CoPP policy is active and how it is treating traffic.
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.
- ✓
show policy-map control-plane
Why this is correct
Correct. This command displays the CoPP policy and per-class packet/drop statistics.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
show control-plane
Why this is correct
Correct. This command shows aggregate control plane statistics, including total packets received and dropped.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
show access-lists
Why this is correct
Correct. ACLs are often used in CoPP class-maps; this command shows match counts to verify traffic classification.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
show ip route
Why it's wrong here
Incorrect. This command displays the routing table, not CoPP statistics.
- ✗
show interfaces
Why it's wrong here
Incorrect. This command shows interface counters and errors, not control plane policing information.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests that candidates confuse general show commands (like 'show interfaces' or 'show ip route') with CoPP-specific verification commands, expecting you to know that only commands referencing 'control-plane' or the policy-map applied to it provide direct verification.
Trap categories for this question
Command / output trap
Incorrect. This command displays the routing table, not CoPP statistics.
Detailed technical explanation
How to think about this question
CoPP uses Modular QoS CLI (MQC) to classify traffic destined for the control plane (e.g., routing protocols, management traffic) and applies policing actions like drop or transmit. The 'show policy-map control-plane' reveals per-class counters, which are critical for tuning policer rates to avoid dropping legitimate protocol packets (e.g., OSPF hellos) while mitigating attacks.
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 security administrator must allow nursing staff to reach a patient records server while blocking access from the guest Wi-Fi VLAN. After applying an extended ACL, traffic is still blocked from nursing workstations. The ACL was applied outbound instead of inbound on the wrong interface. Questions like this test ACL direction and placement rules.
What to study next
Got this wrong? Here's your next step.
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Control Plane Policing (CoPP) — study guide chapter
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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: show policy-map control-plane — The 'show policy-map control-plane' command displays the applied policy map for the control plane, including class maps, match criteria, and action statistics (e.g., packets dropped or permitted). This directly verifies that the CoPP policy is active and how it is treating traffic.
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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