Electromagnetic interference is least likely to affect which type of cable?

Fiber optic cable is least likely to be affected by electromagnetic interference (EMI) because it transmits data using light rather than electrical signals. Unlike copper-based cables, such as unshielded twisted pair, coaxial cable, and shielded twisted pair, fiber optic cables do not rely on electrical currents, making them immune to the effects of EMI. This characteristic is particularly beneficial in environments where there are high levels of electromagnetic activity, such as near industrial equipment or radio transmission towers.

The use of light for data transmission not only minimizes the impact of electromagnetic interference but also allows for higher bandwidth and longer distances without signal degradation. This highlights why fiber optic cables are often chosen for critical data communications in diverse settings.