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Indresh Gehalot • 10.11K Points
Tutor II Computer 

Q. Which of the following communications modes support two-way traffic but in only one direction of a time ?

  • (A) simplex
  • (B) half-duplex
  • (C) three-quarters duplex
  • (D) All of the above
Correct Answer - Option(B)
Explanation by: Indresh Gehalot 
The correct answer is (b) half-duplex. In half-duplex communication mode, two devices can communicate with each other, but only one can transmit at a time, while the other can only receive. This means that two-way traffic is possible, but only in one direction at a time.

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