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Which three statements are true about windows?（）

A. Only one window can be open at any given time
B. Consumer groups are associated with windows
C. Windows work with job classes to control resource allocation
D. The database service name must be provided during windows creation
E. Windows can automatically start job or change resource allocation among jobs for various time periods.

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Identify the persistent configuration setting for the target database that can be set for the backup by using RMAN.（）

A. Backup retention policy
B. Default backup device type
C. Default destinations for backups
D. Multiple backup device types for single backup
E. Default section size for backups

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While Monitoring the space usage in your database that is in ARCHIVELOG mode you observed that the flash recovery area does not have enough free space to accommodate any more files and you do not have necessary permissions to add more space to it.
Identify the two events that can occur in the event of a log switch?（）

A.An entry is created in the alert log file and the database instance continues to function normally
B.The log switch hangs occur for transactions until free space is available in the flash recovery area
C.The Oracle database server deletes a file that is on the obsolete file list to make free space in the flash recovery area Oracle
D.The database instance status is implicitly changed to RESTRICTED mode and file creations to the flash recovery area are prevented

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Which three statements are true about windows?（）

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Identify the persistent configuration setting for the target database that can be set for the backup by using RMAN.（）

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