Q. Communication circuits that transmit data in both directions but not at the same time are operating in
✅ Correct Answer: (D)
a half duplex mode
Explanation:
Half duplex communication allows data transmission in both directions, but only one direction at a time. Example: Walkie-talkies.
- Simplex allows data transmission in only one direction. Example: TV broadcasting.
- Full duplex allows data transmission in both directions simultaneously. Example: Telephone calls.
Therefore, "transmit data in both directions but not at the same time" refers to half duplex.
Explanation by: Mr. Dubey
Half duplex communication allows data transmission in both directions, but only one direction at a time. Example: Walkie-talkies.
- Simplex allows data transmission in only one direction. Example: TV broadcasting.
- Full duplex allows data transmission in both directions simultaneously. Example: Telephone calls.
Therefore, "transmit data in both directions but not at the same time" refers to half duplex.