单选题What does the minimize load database parameter mean when backing up a database?（）ARMAN will attempt to make the backup run as fast as possible without any IO limitations. BRMAN will automatically restrict the number of channels in use to one. CRMAN will spread the backup IO over the total duration stated in the backup command.DRMAN 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. EDatafiles will be backed up; those having the lowest current number of IO operations will be backed up first.
单选题
What does the minimize load database parameter mean when backing up a database?（）
A
RMAN will attempt to make the backup run as fast as possible without any IO limitations.
B
RMAN will automatically restrict the number of channels in use to one.
C
RMAN will spread the backup IO over the total duration stated in the backup command.
D
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.
E
Datafiles will be backed up; those having the lowest current number of IO operations will be backed up first.
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相关考题：
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 multiplexingB. Set the DEBUG ON in the RMAN scriptC. Specify the command ID in the RMAN scriptD. Use a tag with the RMAN BACKUP command
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What does the minimize load database parameter mean when backing up a database?（）A、RMAN will attempt to make the backup run as fast as possible without any IO limitations. B、RMAN will automatically restrict the number of channels in use to one. C、RMAN will spread the backup IO over the total duration stated in the backup command.D、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. E、Datafiles will be backed up; those having the lowest current number of IO operations will be backed up first.
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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？（）A、 control fileB、 all datafilesC、 password fileD、 online redo log fileE、 archive redo log fileF、 server parameter fileG、 only the SYSTEM datafile
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You have created a script in the recovery catalog called backup_database. Which of the following commands would successfully execute that script？（） A、 run { open script backup_database； run script backup_database }B、 run { engage script backup_database； }C、 run { run script backup_database； }D、 Run { execute script backup_database； }E、 The name backup_database is an invalid name for an RMAN script. Trying to run it from RMAN would result in an error.
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You observe that the senior database administrator always uses the following command when connecting to Recovery Manager （RMAN）， and then starts executing commands to backup the database files： $ rman target / What would be the effect of this command？（）A、RMAN would use the current operating system location to place the backup.B、RMAN would use the control file of the target database to maintain the backup.C、RMAN would use the recovery catalog of the target database to maintain the backup.D、RMAN would use the control file of the target database to maintain the backup metadata. E、RMAN would use the recovery catalog of the target database to maintain the backup metadata.
You issued the following RMAN command： RMAN CONFIGURE CONTROLFILE AUTOBACKUP ON； What is NOT an impact of using the above command？（）A、 When a successful backup is recorded in the RMAN repository， then a backup of the current control file is performed.B、 When a structural change is made to the database， then a backup of the current control file is performed.C、 When a successful backup is performed in the RMAN repository， then a backup of the spfile is performed.D、 When a structural change is made to the database， then a backup of the alert log file will be performed.
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You enable block change tracking. You issue the following command: BACKUP INCREMENTAL LEVEL 0 DATABASE; The next day, you issue the following command: BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE; Which statement about the use of the change tracking file is true?（）A、RMAN reads the block change tracking file only when it performs the incremental level 0 backup.B、RMAN reads the block change tracking file when it performs both incremental backups.C、RMAN reads the block change tracking file only when it performs the incremental level 1 backup.D、RMAN does not read the block change tracking file when it performs either incremental backup.
What is the purpose of the RMAN recovery catalog？（） A、 It must be used because all RMAN-related backup and recovery metadata information is contained in it.B、 It provides a convenient， optional， repository of backup- and recovery-related metadata.C、 It provides the ability to store RMAN scripts for global use by any database that has access to the repository.D、 It provides a means of storing all RMAN backup sets physically in an Oracle database server. E、 It provides the ability to store backup records for more than a year.
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单选题You observe that the senior database administrator always uses the following command when connecting to Recovery Manager （RMAN）， and then starts executing commands to backup the database files： $ rman target / What would be the effect of this command？（）ARMAN would use the current operating system location to place the backup.BRMAN would use the control file of the target database to maintain the backup.CRMAN would use the recovery catalog of the target database to maintain the backup.DRMAN would use the control file of the target database to maintain the backup metadata. ERMAN would use the recovery catalog of the target database to maintain the backup metadata.
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多选题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？ （）Awhen you change the name of a datafileBwhen you drop a table from the databaseCwhen you take an export of the databaseDwhen you back up the database using OS utilitiesEwhen you issue an ALTER SYSTEM SWITCH LOGFILE statementFwhen you issue a BACKUP command from inside the RMAN run block
单选题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？（）Acannot be used in RMANBby starting up the database againCby using the CATALOG command of RMANDby using the RECOVER CATALOG command in RMANEby re-creating the target control file to rebuild the RMAN repository
单选题In your database, the flash recovery area (FRA) is configured as the default for RMAN backups. You executed the following commands to configure the settings in RMAN: RMAN CONFIGURE DEVICE TYPE disk PARALLELISM 2 BACKUP TYPE TO BACKUPSET; RMAN CONFIGURE CHANNEL 1 DEVICE TYPE disk FORMAT '/home/oracle/disk1/%U'; RMAN CONFIGURE CHANNEL 2 DEVICE TYPE disk FORMAT '/home/oracle/disk2/%U'; You issue the following RMAN command to backup the database: RMAN RUN 2 { 3 ALLOCATE CHANNEL ch1 DEVICE TYPE disk; 4 BACKUP DATABASE; 5 } Which statement is true about the outcome?（）AOnly one channel is allocated and the backup is created in the flash recovery areaBOnly one channel is allocated and the backup is created in the destination specified for channel 1CTwo channels are allocated and backup sets are created in the destinations specified for channels 1 and 2DThree channels are allocated and backup sets are created in the destinations specified for channels 1, 2, and FRA
单选题You issued the following RMAN command： RMAN CONFIGURE CONTROLFILE AUTOBACKUP ON； What is NOT an impact of using the above command？（）A When a successful backup is recorded in the RMAN repository， then a backup of the current control file is performed.B When a structural change is made to the database， then a backup of the current control file is performed.C When a successful backup is performed in the RMAN repository， then a backup of the spfile is performed.D When a structural change is made to the database， then a backup of the alert log file will be performed.
多选题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？（）Acontrol fileBall datafilesCpassword fileDonline redo log fileEarchive redo log fileFserver parameter fileGonly the SYSTEM datafile
单选题You enable block change tracking. You issue the following command： BACKUP INCREMENTAL LEVEL 0 DATABASE； The next day，you issue the following command： BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE； Which statement about the use of the change tracking file is true？（）A RMAN reads the block change tracking file only when it performs the incremental level 0 backup.B RMAN reads the block change tracking file when it performs both incremental backups.C RMAN reads the block change tracking file only when it performs the incremental level 1 backup.D RMAN does not read the block change tracking file when it performs either incremental backup.
单选题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？（）AYou need to perform the restore and recover operations manually, because the backup was made manually. BFirst you need to resynchronize the catalog with the control file, and then you can use RMAN to recover the database. CFirst you need to add the backup to the catalog using the CATALOG command, and then you can use RMAN to recover the database. DYou can just use RMAN and recover the database, because RMAN automatically updates the catalog with the backup information.
单选题You set the recovery window to seven days and the backup optimization to ON using the CONFIGURE command of Recovery Manager （RMAN）. The most recent backup of the TOOLStablespace to disk was taken on January 3. The TOOLStablespace is read-only.On February 21， when you execute a command to back up all the tablespaces to disk， you find that RMAN backs up the TOOLS tablespace also， even though the contents of the tablespace have not changed after the backup on January 3. Because there are no changes made to the TOOLStablespace， you decide that the tablespace should not be backed up by RMAN. What can you do to skip backing up the TOOLStablespace without changing the current backup optimization setting？（）A configure a default device for RMAN backupsB temporarily disable the retention policy for RMAN backupsC configure automatic channel allocation for RMAN backupsD use the CONFIGURE command to reconfigure the recovery window to 60 days
多选题What is the purpose of the RMAN recovery catalog？（）AIt must be used because all RMAN-related backup and recovery metadata information is contained in it.BIt provides a convenient， optional， repository of backup- and recovery-related metadata.CIt provides the ability to store RMAN scripts for global use by any database that has access to the repository.DIt provides a means of storing all RMAN backup sets physically in an Oracle database server.EIt provides the ability to store backup records for more than a year.