What RMAN command must you use before you can back up a database using the recovery catalog？（）

A .  a list of files that require a backup within three days B .  a list of files that have not been backed up for three days C .  a list of files that RMAN recommends be backed up only once in every three days， based on low volatility D .  a list of files for which a backup has already been performed and may need a backup after three day

A . YYYY-DD-MM:HH24:SS:MI  B . YYYY-DD-MM:HH24:SS:MM  C . YYYY-MM-DD:HH24:MI:SS  D . YYYY-DD-MM:SS:MI:HH24

A . ’SQL ALTER DATABASE OPEN’； B . SQL ALTER DATABASE ’OPEN’； C . OPEN DATABASE； D . DATABASE OPEN

A . The target database must be open. B . The target database must be closed. C . The target database must be mounted. D . The target database must be mounted or open.

A .  After two days， the backup will be marked obsolete. B .  After two days， the backup will be deleted from the media. C .  If the RMAN repository has records of two or more recent backups of a file， then the older backup will be deleted from the media. D .  If the RMAN repository has records of two or more recent backups of a file， then the older backup will be marked obsolete.

A . CONFIGURE DEFAULT DEVICE TYPE TO TAPE MEDIA  B . CONFIGURE DEFAULT DEVICE TYPE TO TAPE  C . CONFIGURE DEFAULT DEVICE TYPE TO SBT  D . CONFIGURE DEFAULT DEVICE TYPE TO SBT_TAPE

A .  They will be renamed. B .  Nothing will happen to them. The backup set pieces do not exist. C .  They will be deleted immediately since they are not in the flash recovery area. D .  You will need to manually remove the physical files listed in the output of the commands. E .  They will become hidden files and removed 10 days later.

A .  A list of files that require a backup within 3 days B .  A list of files requiring more than 3 days of archivelogs to apply C .  A list of files that RMAN recommends be backed up only once in every three days，based on low volatility D .  A list of files for which a backup as already been performed in the last three days and which is  required to be backed up again based on the high number of transactions performed on them

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.

A .  While performing the backup of the datafile，data1.dbf，one backup set is created. B .  While performing the backup of the datafile，data1.dbf，two backup sets are created. C .  While performing the backup of the datafile，data1.dbf，three backup sets are created. D .  While performing the backup of the datafile，data1.dbf，the command for performing a backup of the datafile，data1.dbf，will fail.

A . a list of all the expired backups and copies B . a list of all those files that have been deleted in the last two days C . a list of all those files that have been recovered within the last two days D . a list of backups and copies that are outside the range covered by the current retention policy

A .  a list of files that require a backup within three days B .  a list of files requiring more than 3 days of archive logs to apply C .  a list of files that RMAN recommends be backed up only once in every three days，based on low volatility D .  a list of files for which a backup has already been performed in the last three days and which is required to be backed up again based on the high number of transactions performed on them

A . back up the control file to trace B . bring database to the MOUNT state C . open a connection to the RMAN recovery catalog， which contains the RMAN metadata for the target database D . set the database ID （DBID）， but only if the DB_NAME parameter associated with the target database is unique in the recovery catalog

A . SYSDBA B . SYSOPER C . No system privileges are required for the RMAN user. D . Only SYS user can connect and execute RMAN commands on a target database.

A . A list of files that require a backup within 3 days B . A list of files requiring more than 3 days of archivelogs to apply C . A list of files that RMAN recommends be backed up only once in every three days, based on low volatility D . A list of files for which a backup as already been performed in the last three days and which is required to be backed up again based on the high number of transactions performed on them

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.

A .  An incremental backup strategy will be used automatically. B .  Read-only datafiles will not be backed up as long as backups of those files already exist and those backups meet established retention criteria. C .  RMAN will configure itself for maximum performance at the cost of CPU. D .  RMAN will configure itself for minimal OS/CPU impact at the cost of time to back up the database. E .  RMAN will automatically compress backups.

A .  After two days，a backup will be marked obsolete B .  After two days，a backup will be deleted from the media C .  If the RMAN repository has records of two or more recent backups of a file，then older backups will be deleted from the media. D .  If the RMAN repository has records of two or more recent backups of a file then older backups will be marked obsolete.

A .  Create a backup of the database and recover all corrupted blocks found in the backup. B .  Run a backup validation and list all the logically corrupt blocks as well as physically corrupt blocks in the database. C .  Run a backup validation to populate V$COPY_CORRUPTION view， and then list any corrupt blocks recorded in the view. D .  Run a backup validation to populate V$DATABASE_BLOCK_CORRUPTION view， and then repair any corrupt blocks recorded in the view. E .  Run a backup validation， repair any corrupt blocks found during the validation process， and then update V$DATABASE_BLOCK_CORRUPTION view to indicate which corrupt blocks have been repaired.

A . a list of files that require a backup within three days B . a list of files that have not been backed up for three days C . a list of files that RMAN recommends be backed up only once in every three days， based on low volatility D . a list of files for which a backup has already been performed and may need a backup after three day

A .  back up the control file to trace B .  bring database to the MOUNT state C .  open a connection to the RMAN recovery catalog， which contains the RMAN metadata for the target database D .  set the database ID （DBID）， but only if the DB_NAME parameter associated with the target database is unique in the recovery catalog

A . The retention policy is cleared. B . RMAN does not consider any backup as obsolete. C . The retention policy is set to its default setting of redundancy 1. D . The retention policy is set to its default setting of recovery window 7.

A .  If you perform a backup across a network， then the backup will reduce the bandwidth. B .  If you perform a backup of a datafile， then the backup will be the same as the operating system copy of the datafile. C .  If you perform a backup of a single datafile， then the control file will not be backed up.  D .  The maximum size of each backup set is 10MB E .  The backups will be performed on the disk.

A . After two days, a backup will be marked obsolete B . After two days, a backup will be deleted from the media C . If the RMAN repository has records of two or more recent backups of a file, then older backups will be deleted from the media. D . If the RMAN repository has records of two or more recent backups of a file, then older backups will be marked obsolete.