82.You are managing an Oracle Database 11g database with the following backup strategy: 1) On Sunday

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本文详细介绍了Oracle Database 11g中一种特定的备份策略：周日进行增量级别0磁带备份，周一到周六则执行累积增量级别1磁带备份。文中解释了这两种备份方式的具体含义及其实现原理，帮助读者理解Oracle数据库备份机制。

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82.You are managing an Oracle Database 11g database with the following backup strategy:
1) On Sunday, an incremental level 0 tape backup is performed.
2) Monday through Saturday, a cumulative incremental level 1 tape backup is performed.
Which two statements are true regarding the backups performed? (Choose two.)
A.The backup performed in step 1 backs up all blocks that have ever been in use in the database.
B.The backup performed in step 2 copies all the blocks changed since the most recent level 0 backup.
C.The backup performed in step 1 backs up all the blocks changed since the most recent level 1 backup.
D.The backup performed in step 2 backs up all blocks that have changed since the most recent incremental backup at level 1.
答案：AB
解析：cumulative incremental指的是，它备份上一个级别0备份以来所有发生了变化的块