CompTIA 220-802 Certification Practice Test

Answer: D - The media type that is least susceptible to cross talk is fiber optic. Fiber optic is advantageous for long-distance communication because light propagates through the fiber with little attenuation compared with other electrical standards. This allows long distances to be spanned with few repeaters.

Key Takeaway: Crosstalk refers to any phenomenon by which a signal transmitted on one circuit or channel of a transmission system creates an undesired effect in another circuit or channel. It is usually caused by undesired capacitive, inductive, or conductive coupling from one circuit, part of a circuit, or channel to another.