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A video decoder that occasionally drops a frame is an example of

  • A.a system with no real time requirement at all
  • B.a firm real time system
  • C.a soft real time system
  • D.a hard real time system

Answer: C

The dropped frame degrades the experience without making the system fail or the result worthless, which is the definition of soft. A firm deadline would make the late frame valueless but harmless, and a hard one would make the miss a failure.

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