Oracle OCP 1Z0 053 Q662(rman change tracking file)

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


當整個資料庫restore，recovery後，change tracking file會被clear

參考：http://blog.csdn.net/rlhua/article/details/14551945

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