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UGC-NET | UGC NET CS 2016 Aug - III | Question 43

An Operating System (OS) crashes on the average once in 30 days, that is, the Mean Time Between Failures (MTBF) = 30 days. When this happens, it takes 10 minutes to recover the OS, that is, the Mean Time To Repair (MTTR) = 10 minutes. The availability of the OS with these reliability figures is approximately :

(A)

96.97%

(B)

97.97%

(C)

99.009%

(D)

99.97%

Answer

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