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In a time - division switch, which governs the destination of a packet stored in RAM?

  • A.TDM bus
  • B.Crosspoint
  • C.crossbar
  • D.Control unit

Answer: D

Correct answer: Control unit

In a time-division switch the samples sit in RAM and the control unit decides the order in which they are read out, which is what determines where each one goes. The memory holds the data; the control unit does the switching.

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