Question

A communication system where device A and device B communicate in such a way that at one time either only Device A can transmit or device B can transmit is known as

• A. Uniplex
• B. Monoplex
• C. Simplex
• D. Half duplex

Hint:

Half duplex allows two-way communication, but one direction at a time.

Answer 1

The Correct Option is D

Concept:
Communication systems differ based on direction of data flow.
Step 1:
In half duplex communication:
• Both devices can transmit
• But not at the same time
Step 2:
Simplex allows one-way communication only.
Step 3:
Walkie-talkie is a half duplex device.
Step 4:
\[ \boxed{\text{Half duplex}} \] \[ \boxed{\text{Correct Option = (4)}} \]