Which of the following is a type of transmission mode? I. Simplex mode II.…
2021
Which of the following is a type of transmission mode?
I. Simplex mode
II. Half simplex mode
III. Duplex mode
- A.
I and II
- B.
II and III
- C.
I and III
- D.
I, II and III
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Correct answer: C
Transmission mode refers to the way data is transmitted between devices. There are three main types:
Simplex: Data flows in one direction only. Example: Keyboard → Computer
Half-duplex: Data flows in both directions, but one at a time. Example: Walkie-talkie
Full-duplex: Data flows in both directions simultaneously. Example: Telephone
So, “Half simplex mode” is not a valid transmission mode term.