多项选择题

What is the purpose of the RMAN recovery catalog？（）

A. Make backups faster
B. Store RMAN metadata
C. Store RMAN scripts
D. Provide the ability to do centralized backup reporting
E. Make recovery faster

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单项选择题

A shoot-out has erupted between your MS development teams using .NET and your Linux development teams using Java.
Knowing that your database is in danger，which command would you use to back up your NOARCHIVELOG mode database using RMAN with compression？（）

A. backup database all
B. backup compressed database
C. backup as compressed backupset database
D. backup as compressed backup database plus archivelog all
E. backup as compressed backupset database plus compress archivelog all

单项选择题

Which RMAN backup command is used to create the block-change tracking file？（）

A. alter database create block change tracking file
B. alter database enable block change file
C. alter database enable block change tracking using file ，/ora01/opt/ block_change_tracking.fil
D. alter system enable block change tracking using file ’/ora01/opt/block_ change_tracking.fil’
E. alter system block change tracking on

单项选择题

Which of the following RMAN structures can data from a datafile span？（）

A. RMAN backup-set pieces spanning backup sets
B. RMAN backup-set pieces within a given backup set
C. RMAN backups
D. RMAN channels
E. None of the above