A full backup is performed every Sunday and incremental backups are performed daily Monday through Saturday. How many tapes would be required to perform a full restore if a complete failure occurred on Thursday before the incremental backup?（）A. 2B. 3C. 4D. 5

单项选择题

A full backup is performed every Sunday and incremental backups are performed daily Monday through Saturday. How many tapes would be required to perform a full restore if a complete failure occurred on Thursday before the incremental backup?（）

A. 2
B. 3
C. 4
D. 5

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