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软件可用性是指在某个给定时间点上程序能够按照需求执行的概率,其定义为(11)。(MTTF:Mean Time To Failure;MTTR:Mean Time To Repair)

  • A.可用性=×100%
  • B.可用性=×100%
  • C.可用性=×100%
  • D.可用性=×100%
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