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Which among the following communications lines is best suited to interactive processing applications?

  • A.narrow band channel
  • B.simplex lines
  • C.full duplex lines
  • D.mixed band channels

Answer: C

Correct answer: full duplex lines

Interactive work means a rapid exchange in both directions, and a full duplex line carries both at once so neither side waits for the line to turn round. A simplex line carries one direction only.

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