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Digital buses removed the need for error detection. True or false?

  • A.True, provided the cable is shielded
  • B.False, only on high speed buses
  • C.False, every bus in service carries some form of check
  • D.True, digital signals are immune to corruption

Answer: C

Noise, interference and hardware faults corrupt digital signals just as they do analogue ones. What digital transmission adds is the ability to detect the corruption rather than immunity from it. Detection is what changed.

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