The answer is to use plenum-rated cable and verify its integrity with a cable tester. Plenum-rated cable is required in air-handling spaces like ceiling plenums because its fire-resistant jacket and insulation produce minimal smoke and are self-extinguishing, preventing the spread of flames and toxic fumes through the building’s ventilation system. A cable tester is the correct tool to verify integrity after installation, as it checks for continuity, proper wiring, shorts, and signal performance, ensuring the cable meets operational standards. On the CompTIA A+ Core 1 220-1201 exam, this question tests your understanding of fire safety codes and physical network installation tools, often appearing as a scenario where you must distinguish plenum from PVC (riser) cable. A common trap is confusing a tone generator and probe (used for tracing cables) with a cable tester, which actually validates electrical connectivity. Memory tip: think “Plenum = Fire Prevention, Tester = Connection Perfection.”
220-1201 Networking Tools Practice Question
This 220-1201 practice question tests your understanding of networking tools. 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.
You are setting up a new branch office and need to run Ethernet cables through ceiling plenums. You must ensure the cables meet fire safety codes. Which type of cable should you use, and which tool would you use to verify its integrity after installation?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use plenum-rated cable; verify with a cable tester
This question tests knowledge of plenum-rated cable and verification tools. Plenum-rated cable has fire-resistant insulation for use in air-handling spaces. A cable tester verifies the cable's integrity after installation.
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.
✓
Use plenum-rated cable; verify with a cable tester
Why this is correct
Plenum-rated cable meets fire codes for ceiling spaces, and a cable tester checks for proper termination and continuity.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use PVC cable; verify with a multimeter
Why it's wrong here
PVC cable is not fire-rated for plenums and may produce toxic smoke; a multimeter cannot test Ethernet integrity.
✗
Use shielded cable; verify with a toner probe
Why it's wrong here
Shielded cable is for reducing interference, not fire safety; a toner probe identifies cables but does not verify integrity.
✗
Use fiber optic cable; verify with a loopback plug
Why it's wrong here
Fiber optic cable is not typically used for standard Ethernet drops in offices, and a loopback plug is for copper NICs.
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 220-1201 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 220-1201 question in full detail.
Identify which 220-1201 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.
Networking Tools — This question tests Networking Tools — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use plenum-rated cable; verify with a cable tester — This question tests knowledge of plenum-rated cable and verification tools. Plenum-rated cable has fire-resistant insulation for use in air-handling spaces. A cable tester verifies the cable's integrity after installation.
What should I do if I get this 220-1201 question wrong?
Identify which 220-1201 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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