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Oracle Backup and Recovery Sample Questions:

1. How can a DBA disable one of the current archive destinations?

A) Issue the command ALTER SESSION SET LOG_ARCHIVE_DEST=DEFER.
B) Shut down the database and delete the archive destination dictionary at the operating system level.
C) Specify the initialization parameter LOG_ARCHIVE_DEST_STATE_n=DEFER.
D) It is not possible to disable archive destinations?

2. Which two tasks can a DBA perform using the export/import facility? (Choose two)

A) Transport tablespaces between databases.
B) Examine log files.
C) Make a logical backup of the rollback segment tablespace.
D) Recreate the control file.
E) Archive historical data.

3. Which two benefits do the command?
ALTER DATABASE MOUNT CLONE DATABASE
Offer for the tablespace point-in-time recovery? (Choose two)

A) It allows the SYSTEM tablespace to become a transportable tablespace.
B) It allows the POINT_IN_TIME_RECOVERY option on the export to function.
C) It allows the export to recover statistics on the tables.
D) It prevents accidental corruption of the primary database.
E) It allows you to remove a data file that has been added to the wrong tablespace.

4. The instance crashed after the current online redo-log becomes corrupt. Which action can the DBA take to open the database?

A) Recover the SYSTEM tablespace.
B) Perform a complete recovery of the database.
C) Skip recovery and open the database with the RESETLOGS option.
D) Perform a tablespace recovery.
E) Perform a time-based recovery that stops at the time that the current online redo-log became corrupt.

5. Which statement about 'time-based recovery' is true?

A) Recovery is stopped by pressing at <CTL-C> the recovery prompt.
B) Recovery is stopped when the specified method of recovery (CANCEL, TIME, or CHANGE)
C) Recovery is stopped after the database has committed all changes up to the specified point of time.
D) Recovery is stopped when the database has committed all changes up to the specified system changes number (SCN).
E) Recovery is stopped by entering CANCEL at the recovery prompt.

Solutions: