Multiple choice

Which of the following transmission techniques let computer to alternatiyely send and receive data?

  1. Simplex

  2. Half duplex

  3. Full duplex

  4. Multiplexing

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Half-duplex communication permits bidirectional data transfer, but not concurrently: devices take turns transmitting and receiving. This contrasts with simplex (unidirectional only) and full-duplex (simultaneous two-way). Walkie-talkies exemplify half-duplex behavior.