CompTIA Network+ (N10-009) — Question 460

Which of the following cables is the most appropriate to use when running bulk cables in ceilings?

Answer options

• A. Plenum
• B. Coaxial
• C. Ethernet
• D. DAC

Correct answer: A

Explanation

Plenum cables are specifically designed for use in spaces that facilitate air circulation for heating and air conditioning systems, such as ceilings, and they have a fire-resistant jacket. Coaxial, Ethernet, and DAC cables do not provide the same level of fire safety and are not suitable for plenum spaces.