mediumMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command on Router R1: R1# show…
A network engineer runs the following command on Router R1:
R1# show policy-map control-plane
Control Plane
Service-policy input: CoPP-IN
Class-map: CoPP-BGP (match-all) 500 packets, 30000 bytes 5 minute offered rate 1000 bps, drop rate 500 bps Match: access-group 120 police: cir 8000 bps, bc 1500 bytes, be 1500 bytes conformed 300 packets, 18000 bytes; actions: transmit exceeded 100 packets, 6000 bytes; actions: drop violated 100 packets, 6000 bytes; actions: drop
Based on this output, which statement is correct?
⚠ Common exam trap
Cisco often tests the interpretation of police counters (conformed, exceeded, violated) and the specific CIR value, leading candidates to mistakenly think that all packets are transmitted (option A) or that the police rate is double the CIR (option C) due to confusion with dual-rate policing.
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
✓
BGP traffic is being rate-limited and some packets are being dropped.
The output shows that under the CoPP-BGP class, the police command has a committed information rate (CIR) of 8000 bps. The counters indicate 100 packets exceeded and 100 packets violated, both with a drop action, while only 300 packets conformed and were transmitted. This confirms that BGP traffic is being rate-limited and some packets are being dropped, making option B correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
All BGP packets are being transmitted without any drops.
Why it's wrong here
The output shows exceeded and violated packets being dropped.
- ✓
BGP traffic is being rate-limited and some packets are being dropped.
Why this is correct
The police counters show packets are being dropped due to exceeding the CIR.
- ✗
The police rate is set to 16000 bps.
Why it's wrong here
The CIR is 8000 bps.
- ✗
The class-default is matching BGP traffic.
Why it's wrong here
BGP traffic is matched by the CoPP-BGP class.
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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.