The reliability of a hard-disk drive is typically described in terms of a quantity called mean time between failures (MT

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The reliability of a hard-disk drive is typically described interms of a quantity called mean time between failures (MTBF).Although this quantity is called a “time,” the MTBF actually ismeasured in drive-hours per failure. If a system contains 1200drives, each of which has a 985,000-hour MTBF, how often a drivefailure will occur in that disk farm per year?(2 point for correct answer and 3 points for calculation steps)