What does duplex transmission refer to in networking?

Duplex transmission is a term used in networking to describe the capability of data signals to flow in both directions over a communication channel or medium. This characteristic is fundamental in various networking technologies, allowing for more efficient communication. In full duplex, for example, devices can send and receive data simultaneously, which significantly enhances the performance of the network compared to half-duplex, where data transmission can only occur in one direction at a time.

This ability to handle bidirectional communication is essential for many applications, including voice calls and video conferencing, where having simultaneous two-way communication improves user experience. Therefore, the ability for information to flow in both directions across the cable is what defines duplex transmission in networking.