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- 单项选择题Which of the following MOST correctly describes a hot spare？（）
A、A drive assigned to an array that will only hold parity information used for rebuilding a failedarray drive.
B、An external hard drive to which all data is replicated to for recovery in the event of a failure.
C、A drive assigned to an array that will automatically be used to rebuild a failed array drive.
D、An extra drive purchased and stored in the parts cabinet to replace failed drives.
- C
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