a duplex is the mode in which the communication channel is used in both directions at the same time.
a duplex is the mode in which the communication channel is used in both directions at the same time.
in which mode the communication channel is used in both directions at the same time?
a duplex
simplex communication









































simplex communication is a communication channel that sends information in one direction only.









































the international telecommunication union definition is a communications channel that operates in one direction at a time, but that may be reversible; this is termed half duplex in other contexts. a duplex communication channel requires two simplex channels operating in opposite directions.
simplex communication
communication channel









































a communication channel or simply channel refers either to a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio channel in telecommunications and computer networking. a channel is used to convey an information signal, for example a digital bit stream, from one or several "senders" (or transmitters) to one or several "receivers". a channel has a certain capacity for transmitting information, often measured by its bandwidth in hz or its data rate in bits per second.
communication channel