Which type of backup backs up only data blocks modified since the most recent backup at the same level or lower?（）<br>A:Differential incremental backup<br>B:Different incremental backup <br>C:Cumulative backup <br>D:Cumulative incremental backup

Which type of backup backs up only data blocks modified since the most recent backup at the same level or lower?（）
A:Differential incremental backup
B:Different incremental backup
C:Cumulative backup
D:Cumulative incremental backup

出自：Oracle认证

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