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300-410 Practice Question: Which TWO configuration steps are required to…
Which TWO configuration steps are required to implement Control Plane Policing (CoPP) on a Cisco IOS-XE router? (Choose TWO.)
⚠ Common exam trap
Cisco often tests the distinction between applying the policy map under 'control-plane' configuration mode versus under a physical interface, as candidates mistakenly use 'interface GigabitEthernet0/0' instead of 'control-plane' to attach the CoPP policy.
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
✓
Create a policy map that defines a police action for the classified traffic.
A policy map is required to define the police action (e.g., 'police rate 10000 conform-action transmit exceed-action drop') that enforces rate limiting on the classified traffic. Without a policy map specifying the policing parameters, CoPP cannot apply any QoS action to the control plane traffic. Option C is correct because a class map is necessary to classify the specific traffic types (e.g., SSH, BGP, ICMP) that should be subjected to policing, using match statements based on access lists or protocol headers.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Apply the policy map to a physical interface using the 'service-policy input' command.
Why it's wrong here
CoPP is applied to the control plane, not to physical interfaces.
- ✓
Create a policy map that defines a police action for the classified traffic.
Why this is correct
A policy map with a 'police' command is required to specify the rate and action for CoPP.
- ✓
Create a class map to match the traffic that should be policed.
Why this is correct
A class map defines the traffic classification criteria (e.g., match access-group) for CoPP.
- ✗
Configure a 'shape average' command in the policy map to limit traffic rate.
Why it's wrong here
CoPP uses 'police' for rate-limiting, not 'shape'; shaping is for interface queues.
- ✗
Apply the policy map to the control plane using the 'service-policy input' command under the interface configuration mode.
Why it's wrong here
The 'service-policy input' command is used under 'control-plane' configuration mode, not interface mode.
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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.