Which type of backup contains only the blocks that have changed since the last level 0 incremental backup?()A、a cumulative level 1 backupB、a differential level 1 backupC、a full backupD、a whole backup
Which type of backup contains only the blocks that have changed since the last level 0 incremental backup?()
- A、a cumulative level 1 backup
- B、a differential level 1 backup
- C、a full backup
- D、a whole backup
相关考题:
A system administrator needs to backup datavg which contains a database that pre-allocates files by padding them with nulls, similar to treating them as sparse files. In order to effectively backup and be able to restore the datavg files, which backup method should be used?()A.savevgB.tarC.cpioD.mksysb
Which of the following is the MOST likely connection type for a backup external modem?()A、IEEE 1394B、SCSIC、SerialD、SATA
Which command is used to configure RMAN to perform a compressed backup for every backup executed?()A、 BACKUP AS COMPRESSED BACKUPSET DATABASEB、 BACKUP AS COMPRESSED COPY OF DATABASEC、 CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO COMPRESSED BACKUPSETD、 CONFIGURE DEVICE TYPE DISK BACKUP TYPE COMPRESS E、 BACKUP DATABASE COMPRESS
You work as a database administrator for Certkiller .com. Your database is in NOARCHIVELOG mode and you want to perform a backup. Which type of backup would be appropriate in this case? ()A、Hot backupB、Online backupC、consistent backupD、incremental backupE、inconsistent backup
According to your backup strategy, you performed an incremental level 0 backup of yourdatabase. Which statement regarding this backup is true?()A、The backup is similar to image copy.B、The backup contains all used data blocks.C、The backup contains only unused data blocks.D、The backup contains all data blocks changed since the last incremental level 1 backup.
You performed the RMAN database backup with the KEEP option. Which two statements are true regarding this backup?()A、 The backup contains data files, the server parameter file,and the control file even if the control file autobackup is disabled.B、 The KEEP option overrides the configured retention policy.C、 The backup contains only data files and archived redo log files.D、 The KEEP option is an attribute of an individual backup piece.
You are managing an Oracle Database 11g database with this backup strategy: - Every Sunday night, level 0 backup is performed. - On Monday night and subsequent days, level 1 incremental backup is performed. The backups are not cumulative incremental. Which statement about Monday’s backup is true()A、The backup contains all the used blocks.B、The backup contains all the used and unused blocks.C、The backup contains blocks that have changed since the last level 0 backup.D、The backup contains blocks that have changed since the last level 1 backup taken last week.
Which type of backup backs up only data blocks modified since the most recent backup at the same level or lower?() A、 Differential incremental backupB、 Different incremental backupC、 Cumulative backupD、 Cumulative incremental backup
You performed the RMAN database backup with the KEEP option.Which two statements are true about this backup?() (Choose two)A、The KEEP option overrides the configured retention policyB、The KEEP option is an attribute of an individual backup pieceC、The backup contains only data files and archived redo log filesD、The backup contains data files, the server parameter file and the control file even if the control file auto backup is disabled
You work as a database administrator for Certkiller .com. According to your backup strategy, you performed an incremental level 0 backup of your database. Which statement regarding this backup is true?()A、The backup is similar to image copy.B、The backup contains all used data blocks.C、The backup contains only unused data blocks.D、The backup contains all data blocks changed since the last incremental level 1 backup.
You perform differential incremental level 1 backups of your database on each working day and level 0 backupon Sundays, to tape. Which two statements are true about differential incremental backups()A、The backup performed on Sundays contains all the blocks that have ever been used in the database.B、The backup performed on Sundays contains all the blocks that have changed since the last level 1 backup.C、The backup performed on each working day contains all the blocks that have changed since the last level 0 backup.D、The backup performed on Monday contains all the blocks that have changed since the level 0 backup, and every other working day contains all the blocks that have changed since the level 1 backup
You are performing a backup of your database across the network. While taking the backup, you want to save space on the storage media and reduce the network bandwidth. Which command will you issue to configure the required type of backup?()A、 CONFIGURE DEVICE TYPE TO sbt BACKUP TYPE TO BACKUPSET;B、 CONFIGURE DEVICE TYPE TO disk BACKUP TYPE TO COPY;C、 CONFIGURE DEVICE TYPE TO sbt BACKUP TYPE TO COMPRESSED BACKUPSET;D、 CONFIGURE DEVICE TYPE TO sbt BACKUP TYPE TO COMPRESSED COPY;
单选题You are performing a backup of your database across the network. While taking the backup, you want to save space on the storage media and reduce the network bandwidth. Which command will you issue to configure the required type of backup?()A CONFIGURE DEVICE TYPE TO sbt BACKUP TYPE TO BACKUPSET;B CONFIGURE DEVICE TYPE TO disk BACKUP TYPE TO COPY;C CONFIGURE DEVICE TYPE TO sbt BACKUP TYPE TO COMPRESSED BACKUPSET;D CONFIGURE DEVICE TYPE TO sbt BACKUP TYPE TO COMPRESSED COPY;
单选题You work as a database administrator for Certkiller .com. According to your backup strategy, you performed an incremental level 0 backup of your database. Which statement regarding this backup is true?()AThe backup is similar to image copy.BThe backup contains all used data blocks.CThe backup contains only unused data blocks.DThe backup contains all data blocks changed since the last incremental level 1 backup.
单选题Which type of backup backs up only data blocks modified since the most recent backup at the same level or lower?()ADifferential incremental backupBDifferent incremental backup CCumulative backup DCumulative incremental backup
多选题You performed the RMAN database backup with the KEEP option.Which two statements are true about this backup?() (Choose two)AThe KEEP option overrides the configured retention policyBThe KEEP option is an attribute of an individual backup pieceCThe backup contains only data files and archived redo log filesDThe backup contains data files, the server parameter file and the control file even if the control file auto backup is disabled
单选题Which type of backup must be performed first with an incremental backup?()A Level 1B Level 0C Level 2D Level 3
单选题A system administrator needs to backup datavg which contains a database that pre-allocates files by padding them with nulls, similar to treating them as sparse files. In order to effectively backup and be able to restore the datavg files, which backup method should be used?()AsavevgBtarCcpioDmksysb
多选题You perform differential incremental level 1 backups of your database on each working day and level 0 backup on Sundays, to tape. Which two statements are true about differential incremental backups()AThe backup performed on Sundays contains all the blocks that have ever been used in the database.BThe backup performed on Sundays contains all the blocks that have changed since the last level 1backup.CThe backup performed on each working day contains all the blocks that have changed since the lastlevel 0 backup.DThe backup performed on Monday contains all the blocks that have changed since the level 0 backup,and every other working day contains all the blocks that have changed since the level 1 backup.
多选题You plan to take a closed database backup using operating system commands. Which three SHUTDOWN options are appropriate for this type of backup?()AABORTBNORMALCIMMEDIATEDTRANSACTIONAL
单选题According to your backup strategy, you performed an incremental level 0 backup of your database. Which statement regarding this backup is true?()AThe backup is similar to image copy.BThe backup contains all used data blocks.CThe backup contains only unused data blocks.DThe backup contains all data blocks changed since the last incremental level 1 backup.
单选题You are managing an Oracle Database 11g database with this backup strategy: - Every Sunday night, level 0 backup is performed. - On Monday night and subsequent days, level 1 incremental backup is performed. The backups are not cumulative incremental. Which statement about Monday’s backup is true()AThe backup contains all the used blocks.BThe backup contains all the used and unused blocks.CThe backup contains blocks that have changed since the last level 0 backup.DThe backup contains blocks that have changed since the last level 1 backup taken last week.
单选题Which type of backup contains only the blocks that have changed since the last level 0 incremental backup?()Aa cumulative level 1 backupBa differential level 1 backupCa full backupDa whole backup
单选题You work as a database administrator for Certkiller .com. Your database is in NOARCHIVELOG mode and you want to perform a backup. Which type of backup would be appropriate in this case? ()AHot backupBOnline backupCconsistent backupDincremental backupEinconsistent backup
单选题Which type of backup backs up only data blocks modified since the most recent backup at the same level or lower?()A Differential incremental backupB Different incremental backupC Cumulative backupD Cumulative incremental backup
单选题Which command is used to configure RMAN to perform a compressed backup for every backup executed?()A BACKUP AS COMPRESSED BACKUPSET DATABASEB BACKUP AS COMPRESSED COPY OF DATABASEC CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO COMPRESSED BACKUPSETD CONFIGURE DEVICE TYPE DISK BACKUP TYPE COMPRESS E BACKUP DATABASE COMPRESS
单选题Which type of backup contains only the blocks that have changed since the last level 0 incremental backup?()A a cumulative level 1 backupB a differential level 1 backupC a full backupD a whole backup