CompTIA
220-1201 · Question #379
Which of the following cable types must be used when running copper network cable through a suspended ceiling that is used for air ventilation?
The correct answer is A. Plenum. Plenum-rated cable is required in air-handling spaces such as suspended ceilings used for ventilation because it has fire-resistant insulation that emits minimal toxic smoke if burned.
Submitted by javi_es· Mar 30, 2026Networking
Question
Which of the following cable types must be used when running copper network cable through a suspended ceiling that is used for air ventilation?
Options
- APlenum
- BMultimode
- CCoaxial
- DTwisted pair
How the community answered
(43 responses)- A86% (37)
- B9% (4)
- C2% (1)
- D2% (1)
Explanation
Plenum-rated cable is required in air-handling spaces such as suspended ceilings used for ventilation because it has fire-resistant insulation that emits minimal toxic smoke if burned.
Topics
#Plenum cabling#Network cabling standards#Cable fire safety
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