You issue the following command on the RMAN prompt. REPORT NEED BACKUP DAYS 5; Which statement is true about executing this command?（）
A、It will display a list of files that need incremental backup
B、It will display a list of files that need backup after five days
C、It will display a list of files that were backed up in the last five days
D、It will display a list of files that have not been backed up in the last five days
E、It will apply the current retention policy to determine the files that need to be backed up
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You executed the following commands in a database session:
What could have caused the recycle bin to clean up?（）A、 There is demand for space from the new table
B、 The undo tablespace does not have sufficient free space
C、 The new table name is the same as the table name in the recycle bin
D、 The temporary tablespace that is assigned to you does not have sufficient free space
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To view the results of the most recent Automatic SQL Tuning Advisor task，which sequence should you follow？（）
A、 EM Database home page，Software and Support，SQL Advisors，Automatic SQL Tuning Advisor
B、 EM Database home page，Software and Support，Advisor Central，SQL Advisors，Automatic SQL Tuning Advisor
C、 EM Database home page，Software and Support，Support Workbench，Advisor Central，SQL Advisors，Automatic SQL Tuning Advisor
D、 Either B or C
E、 All of the above
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Which command is used to begin a tablespace point-in-time recovery？（）
A、 Restore tablespace
B、 Recover tablespace
C、 Tablespace recover
D、 Recover to time
E、 recover datafile
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In Recovery Manager (RMAN), you are taking image copies of the data files of your production database and rolling them forward at regular intervals. You attempt to restart your database. After a regular maintenance task, you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the data file by using the image copy. Because a media failure caused the data file to be damaged, you want to place the data file in a different location while restoring the file. Which option must you consider for this task?（）
A、using only the RMAN SWITCH command to set the new location for the data file
B、placing the database in the MOUNT state for the restore and recovery operations.
C、using an RMAN RUN block with the SET NEWNAME and then the SWITCH command.
D、configuring two channels: one for the restore operation and the other for the recovery operation
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Which of the following is not a valid linguistic sort element？（）
A、 Accent expansion
B、 Canonical equivalence
C、 Reverse secondary sorting
D、 Ignorable characters
E、 Character rearrangement