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Assertion (A): MIL-STD-1553 traffic timing is predictable to the microsecond.

Reason (R): Every transfer is a command from the controller followed by a defined response.

Select the correct answer from the options below.

  • A.Both A and R are true, but R is not the correct explanation of A
  • B.A is true but R is false
  • C.A is false but R is true
  • D.Both A and R are true, and R is the correct explanation of A

Answer: D

Both are true and the second is the mechanism. Response gaps are specified tightly, so the controller can schedule the entire bus in advance rather than reacting to what terminals happen to do. The schedule is fixed in advance.

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