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Oracle 1Z0-025 Exam Syllabus Topics:

Oracle Backup and Recovery Sample Questions:

1. Which technique does Oracle use to perform full backups of data files?

A) The server process reads and backs up the entire file.
B) The server process reads the entire file and skips blocks that are unchanged from the last backup.
C) The server process reads the entire file and skips blocks assigned its temporary segments.
D) The server process reads the entire file and skips blocks that have never been used.
E) The server process reads the entire file and skips blocks that currently are not being used.

2. What is the effect of issuing an ALTER DATABASE OPEN RESETLOGS command on the primary database?

A) The standby database can only be used in read-only mode.
B) A new standby database incarnation will automatically be started.
C) Once the archived log files are applied to the standby database, the redo log of the standby database is reset.
D) It invalidates the standby database.

3. In which situation would you need to create a new control file for an existing database?

A) When all redo-log files are lost.
B) When RECOVERY_PARALLELISM needs to be changed.
C) When the name of the parameter file needs to be changed.
D) When MAXLOGMEMBERS needs to be changed.

4. In which mode is 'Closed database backups' the only backup option available?

A) READ ONLY mode.
B) NOARCHIVELOG mode.
C) ARCHIVELOG mode.
D) READ WRITE mode.

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

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

Solutions: