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Oracle 1Z0-025 Exam Syllabus Topics:

Oracle Backup and Recovery Sample Questions:

1. Your database is in ARCHIVELOG mode, and you want to recover from a media failure taken up to the time of failure. Which files do you need to restore?

A) The damaged files, the redo-log files, and the control files from a backup taken after the database was set in ARCHIVELOG mode.
B) The damaged files and the redo log files from a backup taken after the database was set in ARCHIVELOG mode.
C) The damaged files from a backup taken after the database was set in ARCHIVELOG mode.
D) The damaged files from any valid backup.

2. What is the difference between using NOLOGGING operations in a single database environment and a standby database environment?

A) NOLOGGING operations can be used on the standby database, but not on the primary database.
B) The affected data file needs to be copied from the primary to the standby server.
C) NOLOGGING operations are not allowed when using a standby database.
D) The standby database becomes unavailable after a NOLOGGING operation has been used on the primary database.

3. Which statement about disabling archival destinations is true?

A) You can only disable optional archival destinations.
B) You can disable any archival destination as long as you have enough enabled archival destinations left to meet the LOG_ARCHIVE_MIN_SUCCESS threshold value.
C) You can disable archival destinations by specifying ARCHIVE_DEST_STATE_nn_DISABLE
D) You can only disable mandatory archival destinations as long as at least one mandatory archival destination is left.

4. What two actions occur during a checkpoint? (Choose two)

A) Oracle flushes the dirty blocks in the database buffer cache to disk.
B) Oracle performs a control file.
C) Oracle performs a log switch.
D) Oracle copies the online redo-log to the archive destinations.
E) Oracle performs a delayed block clean-out.

5. When starting up the database you find that an inactive, unarchieved redo-log group is corrupted. What should you do?

A) RECOVER REDOLOG GROUP 1;
B) ALTER DATABASE CLEAR UNARCHIEVED LOGFILE GROUP 1;
C) RECOVER DATABASE UNTIL CANCEL;
D) RECOVER DATABASE UNTIL TIME '1999-09-15:11:23:0';
E) ALTER DATABASE
RECOVER REDOLOG;

Solutions: