RMAN will attempt to make the backup run as fast as possible without any IO limitations.
RMAN will automatically restrict the number of channels in use to one.
RMAN will spread the backup IO over the total duration stated in the backup command.
RMAN will skip any datafile that currently is involved in an IO operation. RMAN will retry backing up the datafile later and an error will be raised at the end of the backup if the datafile cannot be backed up.
Datafiles will be backed up; those having the lowest current number of IO operations will be backed up first.
第1题:
What does the minimize load database parameter mean when backing up a database?()
第2题:
Your PROD database has been started using the server parameter file. In your PROD database you are using RMAN for backup and recovery operations. You issue the following commands from the RMAN prompt: RMAN> CONFIGURE CONTROLFILE AUTOBACKUP OFF; RMAN> BACKUP DATABASE; Which files from the database will be backed up as a result of this BACKUP command?()
第3题:
Multiple RMAN sessions are connected to the database instance.Examine the following output when backup commands are running in server sessions:What could have helped you to correlate server sessions with channels?()
A. Implement RMAN multiplexing
B. Set the DEBUG ON in the RMAN script
C. Specify the command ID in the RMAN script
D. Use a tag with the RMAN BACKUP command
第4题:
Your database is running in the ARCHIVELOG mode. You have configured RMAN for backup and recovery operations. You execute the following command from the RMAN prompt: RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON; After executing this command, in which of the following cases will RMAN make an auto-backup of the control file? ()
第5题:
When you are allowing RMAN to backup your archived redo log files,how does RMAN know which archived redo logs to back up from your archive log destination?()
第6题:
Your database runs in NOARCHIVELOG mode, and is backed up every night using RMAN scripts. However, last night your assistant DBA performed a manual operating system backup, instead of running the scripts. Today your database crashed and you now want to use the backups from last night. What do you need todo?()
第7题:
You want to perform the database backup when user activity on your system is low, such as between 12:00 a.m. and 2:00 am. Which command terminates with an error if the backup is not complete at the end of the specified duration?()
第8题:
Identity two advantages of using a recovery catalog in-load of the control File of the target database Recovery Manager (RMAN).()
第9题:
You have created a script in the recovery catalog called backup_database. Which of the following commands would successfully execute that script?()
第10题:
It is a holiday and no transactions are being performed on the database. You took a consistent backup of your database without using Recovery Manager (RMAN). How would you make use of this consistent backup in RMAN?()