Endpoints on the main cable of a Bus topology that absorbs signals preventing back-and-forth relay are called what?

Endpoints on the main cable of a Bus topology that absorbs signals preventing back-and-forth relay are called what?

• A. Terminator
• B. Repeater
• C. Hub
• D. Switch

Answer: (A)

In a bus topology, signals travel along a single main cable and can reflect back from the ends. Placing a terminator at each end of the main cable absorbs those signals and matches the cable’s impedance, preventing reflections and interference. This is why the end devices on a bus require a terminator. A repeater would regenerate and extend the signal, not absorb it at the ends. A hub or switch are active network devices used in other topologies and do not terminate a bus to prevent reflections.

In a bus topology, signals travel along a single main cable and can reflect back from the ends. Placing a terminator at each end of the main cable absorbs those signals and matches the cable’s impedance, preventing reflections and interference. This is why the end devices on a bus require a terminator. A repeater would regenerate and extend the signal, not absorb it at the ends. A hub or switch are active network devices used in other topologies and do not terminate a bus to prevent reflections.