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Statement I: a real time system must be fast. Statement II: a real time system must meet its deadlines.

  • A.the first statement is true and the second is false
  • B.the first statement is false and the second is true
  • C.both statements are true and the second explains the first
  • D.both statements are true but the second does not explain the first

Answer: B

Speed is neither necessary nor sufficient: a slow system with generous deadlines is real time and a fast one with unbounded worst-case behaviour is not. Predictability rather than throughput is the property being claimed.

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