mediumMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command to verify CoPP…
A network engineer runs the following command to verify CoPP (Control Plane Policing) with route-maps:
R1# show policy-map control-plane input class class-default
Control Plane
Service-policy input: CoPP
Class-map: class-default (match-any) 12234 packets, 1234567 bytes 5 minute offered rate 1000 bps, drop rate 0 bps Match: any police: cir 8000 bps, bc 1500 bytes, be 1500 bytes conformed 12234 packets, 1234567 bytes; actions: transmit exceeded 0 packets, 0 bytes; actions: drop violated 0 packets, 0 bytes; actions: drop
What does this output indicate?
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 CoPP policy is allowing all traffic and not dropping any packets.
The output shows the CoPP policy applied to the control plane. The class-default matches all traffic and polices it at 8000 bps. All packets have conformed and been transmitted, with no drops. This indicates that the CoPP policy is working and not dropping any traffic.
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 CoPP policy is dropping all traffic because the CIR is too low.
Why it's wrong here
The drop rate is 0 bps, so no traffic is being dropped.
- ✓
The CoPP policy is allowing all traffic and not dropping any packets.
Why this is correct
All packets have conformed to the police rate and have been transmitted, with no drops.
- ✗
The CoPP policy is only matching specific traffic classes.
Why it's wrong here
The class-default matches any traffic, not specific classes.
- ✗
The CoPP policy is not applied to the control plane.
Why it's wrong here
The output shows the policy is applied and active.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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