- A
show policy-map control-plane
This command displays the CoPP policy applied to the control plane and per-class packet counters, essential for verifying CoPP operation.
- B
show control-plane host open-ports
This command shows open ports on the control plane and the CoPP class map associated with each port, useful for verifying CoPP coverage.
- C
show ip interface brief
Why wrong: This command shows interface IP addresses and status, not CoPP statistics or configuration.
- D
show access-lists
Why wrong: This command shows ACL hit counts but does not provide CoPP-specific per-class packet statistics or policy verification.
- E
show running-config | section policy-map
Why wrong: This command displays the CoPP policy configuration, but not operational statistics or current packet counts.
300-410 Control Plane Policing (CoPP) Practice Question
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 commands verify the operational status and packet statistics of a Control Plane Policing (CoPP) policy on a Cisco IOS-XE device? (Choose TWO.)
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 CoPP policy, including per-class match counters and action statistics (e.g., number of packets dropped or forwarded). This directly verifies that the policy is active and processing traffic as configured.
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
This command displays the CoPP policy applied to the control plane and per-class packet counters, essential for verifying CoPP operation.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
show control-plane host open-ports
Why this is correct
This command shows open ports on the control plane and the CoPP class map associated with each port, useful for verifying CoPP coverage.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
show ip interface brief
Why it's wrong here
This command shows interface IP addresses and status, not CoPP statistics or configuration.
- ✗
show access-lists
Why it's wrong here
This command shows ACL hit counts but does not provide CoPP-specific per-class packet statistics or policy verification.
- ✗
show running-config | section policy-map
Why it's wrong here
This command displays the CoPP policy configuration, but not operational statistics or current packet counts.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between configuration verification ('show running-config') and operational verification ('show policy-map control-plane'), trapping candidates who think viewing the config is sufficient to confirm live packet statistics.
Trap categories for this question
Command / output trap
This command shows interface IP addresses and status, not CoPP statistics or configuration.
Detailed technical explanation
How to think about this question
CoPP uses a special control-plane service policy applied under the 'control-plane' configuration. The 'show policy-map control-plane' command retrieves real-time counters from the hardware or software forwarding plane, including conform and exceed byte/packet counts for each class. In a real-world scenario, if a router is experiencing high CPU due to a control-plane attack, this command helps identify which class (e.g., SSH, ICMP) is being policed and how many packets are being dropped.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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 CoPP policy, including per-class match counters and action statistics (e.g., number of packets dropped or forwarded). This directly verifies that the policy is active and processing traffic as configured.
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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