The method of communication in which transmission takes place in both directions, but only one direction at a time is called
A
Simplex
B
Four wire circuit
C
Full Duplex
D
Half Duplex
Correct Answer: Half Duplex
A. Simplex:Simplex communication is a method of communication where transmission occurs in only one direction. It does not support two-way communication.
B. Four wire circuit:
A four-wire circuit refers to a communication channel that uses separate wires for transmission and reception, allowing for simultaneous two-way communication. However, this option does not describe the scenario where only one direction is allowed at a time.
C. Full Duplex:
Full duplex communication is a method where transmission can occur simultaneously in both directions. It allows for two-way communication simultaneously, which is not the case in the given scenario.
D. Half Duplex:
Half duplex communication is the correct answer. In this method, transmission can take place in both directions, but only one direction can occur at a time. The communication switches between the two directions, allowing communication in both directions but not simultaneously.
Therefore, the correct answer is:
D. Half Duplex
