CompTIA A+ Question I-69

Which of the following describes the MAIN difference between a plenum rated cable versus a non- plenum rated cable?

A. A reduced production of hazardous fumes when subjected to fire
B. The ability to be bent into tighter turning radiuses within conduit
C. A reduced noise level when bundled in groups of 20 or more
D. The ability to transmit data with fewer cross-talk interruptions

Correct Answer: A

Plenum cable is sheathed with fire retarded substance. Therefore, the production of hazardous fumes will be lower in plenum cable than in other cables not coated with fire retardant material.