Which of the following components connect the transmitter and receiver in a fiber-optic system?

In a fiber-optic system, optical fibers are the critical components that directly connect the transmitter and receiver. These fibers are designed to transmit light signals over long distances with minimal loss. The operation hinges on the principle of total internal reflection, which allows the light to travel through the fiber core while being confined within it, effectively carrying data in the form of light pulses.

Jumper cables and switching devices serve different purposes in a network. Jumper cables are typically used to make connections within a local area or between different equipment, but they aren't specific to the transmission medium of fiber optics. Switching devices facilitate the routing of data within a network but do not physically connect the transmitter to the receiver. Amplifiers may enhance the signal strength along the fiber, but they are not responsible for the core function of connecting the transmitter and receiver directly. Therefore, optical fibers stand out as the essential components that enable communication in a fiber-optic system.