Oracle认证考试多项选择题每日一练(2019.08.15)

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1 Which three actions are required to configure the Flashback Database? （）

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2 When a check point occurs the （）. （）. and （） are synchronized.

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3

View the Exhibit.You executed the following command to perform a backup of the USERS tablespace： RMAN> BACKUP TABLESPACE USERS； 
Which three types of files are backed up？ （）

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4 Which three statements about subqueries are true?（）

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5 Which two statements are true about the duplexing of the backups taken by RMAN？（）  

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