To enable faster incremental backups,

To enable faster incremental backups, you enabled block change tracking for the database.Which two statements are true about the block change tracking file?（）

A Multiple change tracking files can be created for a database.
B The change tracking file must be created after the first level 0 backup.
C RMAN does not support backup and recovery of the change tracking file.
D The database clears the change tracking file and starts tracking changes again, after whole database restore and recovery operations.

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参考解析：

分类：OCP 11G认证考试题库

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