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Oracle Backup and Recovery Sample Questions:

1. When would a DBA need to perform a media recovery?

A) After instance failure occurs.
B) When a data file is not synchronized with the other data files, redo logs, and control files.
C) After abnormal termination of client program.
D) After the failure of an Oracle background process.
E) After the database is shutdown by using SHUTDOWN TRANSACTIONAL.

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

3. You perform an incomplete recovery using RMAN. You write the following script:
RUN{
SET UNTIL TIME='yyyy-nm-dd:hh:mi:ss';
RESTORE DATABASE;
RESTORE DATABASE;
SQL"alter database open resetlogs";
Which command is missing?

A) ALLOCATE CHANNEL cname TYPE DISK;
B) SET LIMIT CHANNEL cname KBYTES 4194304
C) RELEASE CHANNEL;
D) RESYNC CATALOG;

4. 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.

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

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

Solutions: