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單項選擇題

An administrator performs a full backup every Saturday evening and daily incremental backups the  rest  of  the  week.  The  system  failed  on  Thursday  and  must  be  restored.  
Which  backup  tapes  will  be  required to restore the system to its most recent recoverable state()

A.Saturday’s full backup tape
B.Wednesday’s backup tape
C.Saturday’s full backup and Wednesday’s incremental backup tapes
D.Saturday’s full backup and Sunday’s through Wednesday’s incremental backup tapes

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