Oracle 1Z0-025 : Backup and Recovery

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Oracle Backup and Recovery Sample Questions:

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

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

2. A tablespace becomes unavailable because of a failure. The database is running in
NOARCHIVELOG mode?
What should the DBA do to make the database available?

A) There is no possibility too make the database available.
B) Perform a tablespace recovery.
C) Perform a complete database recovery.
D) Restore the data files, redo log files, and control files from an earlier copy of a full database backup.

3. You have determined that one of the data files belonging to the SYSTEM tablespace is corrupt. Which complete media recovery scenario do you choose?

A) Complete recovery - opened database, initially closed.
B) Complete recovery - opened database, initially opened.
C) Complete recovery - mounted database.
D) You cannot recover from the corruption of a database file belonging to the SYSTEM tablespace except by going back to the last full backup.

4. During an opened database backup, a power failure occurs. Which SQL statement do you issue to resolve this situation after mounting the database?

A) ALTER DATABASE n END BACKUP
B) ALTER DATABASE DATAFILE n END BACKUP
C) ALTER TABLESPACE name DATAFILE n END BACKUP
D) ALTER DATABASE OPEN RESETLOGS

5. The alert log can contain specific information about which database backup activity?

A) Placing tablespace in begin and end backup mode.
B) Performing an operating system backup of the database files.
C) Placing datafiles in begin and end backup mode.
D) Changing the database backup mode from open to close.

Solutions: