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300-410 Practice Question: Which statement about CoPP and IPv6 control plane…

Which statement about CoPP and IPv6 control plane traffic is correct?

⚠ Common exam trap

Cisco often tests the misconception that CoPP is IPv4-only, but the trap here is that CoPP is protocol-agnostic and can police IPv6 traffic using the same MQC framework, including within a single policy-map.

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

✓

CoPP can police IPv6 traffic using the same policy-map as IPv4

C is correct because Control Plane Policing (CoPP) uses MQC (Modular QoS CLI) policy-maps that can match both IPv4 and IPv6 traffic via class-maps referencing ACLs or protocol headers. The same policy-map can contain separate class entries for IPv4 and IPv6 traffic, allowing unified policing of control plane packets regardless of IP version. This is explicitly supported in Cisco IOS/IOS-XE, and CoPP is not limited to IPv4.

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 does not support IPv6 traffic

    Why it's wrong here

    CoPP fully supports IPv6 control plane traffic.

  • ✗

    IPv6 traffic is automatically classified as critical

    Why it's wrong here

    Classification depends on the ACL or class-map configuration, not on the IP version.

  • ✓

    CoPP can police IPv6 traffic using the same policy-map as IPv4

    Why this is correct

    CoPP uses a single policy-map that can match both IPv4 and IPv6 traffic via ACLs or class-maps.

  • ✗

    IPv6 control plane traffic is not subject to CoPP

    Why it's wrong here

    IPv6 traffic is subject to CoPP just like IPv4 traffic.

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This 300-410 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 300-410 exam.