Quick Answer
The answer is that all traffic in class ATTACK is being dropped. This is because the output from the `show policy-map control-plane` command reveals that all 100 packets in the ATTACK class exceeded the configured committed information rate (CIR) of 8000 bps, triggering the policer’s exceed action to drop every packet. In CoPP (Control Plane Policing), when a class-map’s traffic rate surpasses the CIR, the policer enforces the configured action—here, “drop” for exceeded packets—resulting in zero packets being transmitted. On the Cisco CCNP ENARSI 300-410 exam, this scenario tests your ability to interpret CoPP statistics and understand how policers handle control-plane traffic, a common topic in troubleshooting router stability. A frequent trap is confusing “conformed” and “exceeded” counters; remember that “exceeded” always means the policer enforced the drop action. Memory tip: “Exceeded equals ejected”—if you see exceeded packets, they are gone.
This 300-410 practice question tests your understanding of mpls operations. 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.
A network engineer runs the following command on Router R1:
R1# show policy-map control-plane
Control Plane
Service-policy input: CoPP
class-map: MANAGEMENT (match-all) 5 packets, 500 bytes 5 minute offered rate 0 bps police: cir 8000 bps, bc 1500 bytes conformed 5 packets, 500 bytes; actions: transmit exceeded 0 packets, 0 bytes; actions: drop conformed 0 bps, exceed 0 bps
class-map: ATTACK (match-all) 100 packets, 10000 bytes 5 minute offered rate 0 bps police: cir 8000 bps, bc 1500 bytes conformed 0 packets, 0 bytes; actions: transmit exceeded 100 packets, 10000 bytes; actions: drop conformed 0 bps, exceed 0 bps
Based on this output, what is happening to traffic matching class ATTACK?
All traffic in class ATTACK is being transmitted.
Why wrong: Conformed packets are 0, so no packets are transmitted.
All traffic in class ATTACK is being dropped.
Exceeded 100 packets, all dropped.
Traffic in class ATTACK is being rate-limited but not dropped.
Why wrong: The exceed action is drop, not transmit.
Traffic in class ATTACK is being marked down.
Why wrong: No marking action is shown; only transmit and drop.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
All traffic in class ATTACK is being dropped.
The output shows that for class ATTACK, 100 packets were exceeded and dropped. This means the traffic rate exceeded the committed information rate (CIR) of 8000 bps, and all packets were dropped as per the exceed action.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
All traffic in class ATTACK is being transmitted.
Why it's wrong here
Conformed packets are 0, so no packets are transmitted.
All traffic in class ATTACK is being dropped.
Why this is correct
Exceeded 100 packets, all dropped.
Related concept
Read the scenario before looking for a memorised answer.
Traffic in class ATTACK is being rate-limited but not dropped.
Why it's wrong here
The exceed action is drop, not transmit.
Traffic in class ATTACK is being marked down.
Why it's wrong here
No marking action is shown; only transmit and drop.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
No marking action is shown; only transmit and drop.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the 300-410 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Identify which 300-410 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
MPLS Operations — study guide chapter
Learn the concepts, then practise the questions
MPLS Operations practice questions
Targeted practice on this topic area only
All 300-410 questions
2,152 questions across all exam domains
Cisco CCNP ENARSI 300-410 study guide
Full concept coverage aligned to exam objectives
300-410 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise 300-410 questions linked to Layer 3 Technologies.
Practise 300-410 questions linked to EIGRP Troubleshooting.
Practise 300-410 questions linked to OSPF Troubleshooting (v2/v3).
Practise 300-410 questions linked to BGP Troubleshooting.
Practise 300-410 questions linked to Route Redistribution.
Practise 300-410 questions linked to Policy-Based Routing (PBR).
Practise 300-410 questions linked to VRF-Lite.
Practise 300-410 questions linked to Route Maps and Route Filtering.
Practise 300-410 questions linked to Administrative Distance.
Practise 300-410 questions linked to Route Summarization.
Practise 300-410 questions linked to Bidirectional Forwarding Detection (BFD).
Practise 300-410 questions linked to VPN Technologies.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
MPLS Operations — This question tests MPLS Operations — Read the scenario before looking for a memorised answer..
The correct answer is: All traffic in class ATTACK is being dropped. — The output shows that for class ATTACK, 100 packets were exceeded and dropped. This means the traffic rate exceeded the committed information rate (CIR) of 8000 bps, and all packets were dropped as per the exceed action.
Identify which 300-410 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
Last reviewed: Jun 18, 2026
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.