CCNA Network Infrastructure and Connectivity Practice Question
This 200-301 practice question tests your understanding of network infrastructure and connectivity. 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.
Drag and drop the items on the left to the correct descriptions on the right.
Drag a concept onto its matching description — or click a concept then click the description.
Concepts
Matches
Displays optical transceiver diagnostic information including temperature and Tx/Rx power
Shows Ethernet physical layer diagnostics such as cable length, MDI/MDIX, and pair status
10 Gigabit Ethernet short-reach multimode fiber transceiver for 850 nm up to 300 m
Copper twisted-pair cabling standard supporting 10GBASE-T up to 100 meters
Small form-factor duplex fiber optic connector used with SFP/SFP+ modules
Correct answer & explanation
show interface transceiver outputs Digital Optical Monitoring (DOM) data such as temperature, voltage, and Tx/Rx power for installed transceivers. show controllers ethernet-controller phy displays physical layer diagnostics including cable length estimates, MDI/MDI-X status, pair swaps, and link quality counters. SFP-10G-SR is a multimode fiber transceiver supporting 10 Gigabit Ethernet at 850nm over distances up to 300 meters. Cat6a is enhanced copper twisted-pair cabling rated for 10GBASE-T up to 100 meters with improved alien crosstalk performance. LC connectors are the small form-factor duplex fiber connectors commonly used with SFP and SFP+ optical modules.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 200-301 question in full detail.
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.
Network Infrastructure and Connectivity — This question tests Network Infrastructure and Connectivity — Read the scenario before looking for a memorised answer..
What exam trap should I watch out for?
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.
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.
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Question Discussion
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