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A sporadic task differs from an aperiodic one in having

  • A.a guaranteed minimum interval between arrivals
  • B.a fixed period like a periodic task
  • C.no deadline of any kind attached to it
  • D.a deadline longer than its own period

Answer: A

The minimum interarrival time is what makes the load boundable and therefore analysable; an aperiodic task may in principle arrive at any rate and cannot be guaranteed. Most real event handling is sporadic once the physics is examined.

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