Which of the following is a characteristic of optical fibers?

Optical fibers are designed to transmit data through light, which is a fundamental characteristic that distinguishes them from traditional copper wiring. The core of an optical fiber is made of glass or plastic through which light signals are transmitted. This mode of data transmission allows for higher bandwidths and longer distances without significant loss of signal quality compared to electrical signals traveling through copper conductors.

The ability to use light also makes optical fibers immune to electromagnetic interference, which means they can operate effectively in environments where electrical signals might be disrupted by external electromagnetic fields. This gives them a significant advantage in various applications, including telecommunications, where reliable data transmission is crucial. Additionally, optical fibers can be used in a variety of environmental conditions, not limited to hot environments, making the assertion that they operate only in such conditions inaccurate.