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Which type of backup must be performed first with an incremental backup?()

  • A、 Level 1
  • B、 Level 0
  • C、 Level 2
  • D、 Level 3

参考答案

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考题 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

考题 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()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.

考题 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

考题 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

考题 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?()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.

考题 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?()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.

考题 单选题You are migrating your production database from non-ASM to ASM storage. You used the RMAN utility to migrate the database from non-ASM to ASM storage. Which type of backup command script will you use for migrating the database from non-ASM to ASM storage?()A  BACKUP AS BACKUPSETB  BACKUP AS COPYC  BACKUP AS COMPRESSED BACKUPSETD  BACKUP INCREMENTAL LEVEL n CUMULATIVE