- A
Check interface statistics for CRC errors, runts, or giants; verify duplex and speed settings; replace faulty cables or transceivers; monitor interface to confirm resolution.
This is the correct sequence: first gather statistics to identify the issue, then verify and correct configuration (duplex/speed), replace hardware if needed, and finally confirm the fix by monitoring.
- B
Replace the cable immediately; then check interface statistics; if errors persist, adjust duplex settings; finally, monitor the interface.
Why wrong: This is incorrect because replacing the cable without first checking statistics or verifying configuration is premature and may not address the root cause.
- C
Verify duplex and speed settings; then replace the cable; check interface statistics; finally, monitor the interface.
Why wrong: This is incorrect because checking statistics should come before verifying duplex/speed to identify the specific issue, not after.
- D
Monitor the interface for errors; then replace the cable; if errors continue, adjust duplex settings; finally, check interface statistics.
Why wrong: This is incorrect because monitoring should be the final step to confirm resolution, not the first. Also, checking statistics should be done early to identify the problem.
Quick Answer
The correct order is to first check interface statistics for CRC errors, runts, or giants, then verify duplex and speed settings, replace faulty cables or transceivers, and finally monitor the interface to confirm resolution. This sequence is essential because CRC errors and runts are often symptoms of a physical-layer problem, such as a duplex mismatch where one side is set to full-duplex and the other to half-duplex, causing collisions and frame corruption. On the CCNA 200-301 v2 exam, this drag-and-drop task tests your ability to apply a systematic troubleshooting methodology for interface flapping and duplex mismatch scenarios, a common real-world Cisco IOS-XE issue. A frequent trap is jumping straight to cable replacement without first verifying duplex settings, which wastes time if the root cause is a misconfiguration. Remember the mnemonic “Check, Verify, Replace, Monitor” to lock in the logical flow from symptom identification to resolution confirmation.
CCNA Network Infrastructure and Connectivity Practice Question
This 200-301 practice question tests your understanding of network infrastructure and connectivity. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Drag and drop the following steps into the correct order to isolate and resolve interface CRC errors, duplex mismatches, and flapping on a Cisco IOS-XE switch.
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
Check interface statistics for CRC errors, runts, or giants; verify duplex and speed settings; replace faulty cables or transceivers; monitor interface to confirm resolution.
Start with checking statistics to identify issues, then verify duplex and cable, replace hardware if needed, and finally confirm resolution.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Check interface statistics for CRC errors, runts, or giants; verify duplex and speed settings; replace faulty cables or transceivers; monitor interface to confirm resolution.
Why this is correct
This is the correct sequence: first gather statistics to identify the issue, then verify and correct configuration (duplex/speed), replace hardware if needed, and finally confirm the fix by monitoring.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Replace the cable immediately; then check interface statistics; if errors persist, adjust duplex settings; finally, monitor the interface.
Why it's wrong here
This is incorrect because replacing the cable without first checking statistics or verifying configuration is premature and may not address the root cause.
- ✗
Verify duplex and speed settings; then replace the cable; check interface statistics; finally, monitor the interface.
Why it's wrong here
This is incorrect because checking statistics should come before verifying duplex/speed to identify the specific issue, not after.
- ✗
Monitor the interface for errors; then replace the cable; if errors continue, adjust duplex settings; finally, check interface statistics.
Why it's wrong here
This is incorrect because monitoring should be the final step to confirm resolution, not the first. Also, checking statistics should be done early to identify the problem.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The 200-301 exam frequently reuses these exact scenarios with slightly different constraints.
✓Check interface statistics for CRC errors, runts, or giants; verify duplex and speed settings; replace faulty cables or transceivers; monitor interface to confirm resolution.Correct answer▾
Why this is correct
This is the correct sequence: first gather statistics to identify the issue, then verify and correct configuration (duplex/speed), replace hardware if needed, and finally confirm the fix by monitoring.
✗Replace the cable immediately; then check interface statistics; if errors persist, adjust duplex settings; finally, monitor the interface.Wrong answer — click to see why▾
Why this is wrong here
The step order is reversed; troubleshooting should start with data collection, not hardware replacement.
Why candidates choose this
Candidates might think hardware is the most common cause and jump to replacement first, but best practice is to gather evidence first.
✗Verify duplex and speed settings; then replace the cable; check interface statistics; finally, monitor the interface.Wrong answer — click to see why▾
Why this is wrong here
The order is illogical; you need to see the errors before adjusting settings, and replacing the cable before checking statistics may be unnecessary.
Why candidates choose this
Candidates might think verifying configuration is the first step, but statistics provide the evidence needed to guide further actions.
✗Monitor the interface for errors; then replace the cable; if errors continue, adjust duplex settings; finally, check interface statistics.Wrong answer — click to see why▾
Why this is wrong here
The sequence is reversed; monitoring is for verification after corrective actions, and statistics should be checked before making changes.
Why candidates choose this
Candidates might think monitoring is a good starting point, but it is a passive step that should follow active troubleshooting.
Analysis generated from the official 200-301blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
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.
Detailed technical explanation
How to think about this question
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.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 200-301 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
Got this wrong? Here's your next step.
Identify which 200-301 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.
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Network Infrastructure and Connectivity — study guide chapter
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FAQ
Questions learners often ask
What does this 200-301 question test?
Network Infrastructure and Connectivity — This question tests Network Infrastructure and Connectivity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Check interface statistics for CRC errors, runts, or giants; verify duplex and speed settings; replace faulty cables or transceivers; monitor interface to confirm resolution. — Start with checking statistics to identify issues, then verify duplex and cable, replace hardware if needed, and finally confirm resolution.
What should I do if I get this 200-301 question wrong?
Identify which 200-301 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.
What is the key concept behind this question?
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 →
Same concept, more angles
1 more ways this is tested on 200-301
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Drag and drop the following steps into the correct order to isolate CRC errors, duplex mismatches, and flapping on a Cisco IOS-XE interface.
medium- ✓ A.Enter configuration mode, enable debugs, monitor logs, analyze data, apply fixes and verify.
- B.Enable debugs, enter configuration mode, monitor logs, analyze data, apply fixes and verify.
- C.Monitor logs, enter configuration mode, enable debugs, analyze data, apply fixes and verify.
- D.Enter configuration mode, monitor logs, enable debugs, analyze data, apply fixes and verify.
Why A: First enter configuration mode, then enable debugs to capture errors, monitor logs, analyze the data, and finally apply fixes and verify.
Last reviewed: Jun 6, 2026
This 200-301 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 200-301 exam.
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