Every Sunday， consistent backups are performed on your datab

第1题：

A server failed Thursday evening before the nightly backup. The backup scheme in place was full backups every Sunday, incremental backups on Monday, Wednesday, and Friday, and differential backups on Tuesday,Thursday, and Saturday. To fully restore the server. which of the following is the LEAST amount of backup sets required?（）

• A、One
• B、Two
• C、Three
• D、Four

第2题：

Due to operational commitments， a system has a very short backup window during the week， but is not used from Saturday morning through Sunday at Midnight. Which of the following minimizes backup time， while providing the best data restore coverage？（）

• A、Full backups every night
• B、Differential backups every night
• C、Full backup Saturday night， incremental backups the rest of the week
• D、Full backup Saturday night， differential backups the rest of the week

第3题：

第4题：

Which two statements are true about the duplexing of the backups taken by RMAN？（）  

• A、 It’s only supported for the backups performed on the tape
• B、 It is not supported for backup operations that produce image copies
• C、 Duplex backups need a parallelism for the device to be equal to number of copies
• D、 Duplex backups can be performed to either disk or tape， but cannot be performed on tape and disk simultaneously

第5题：

Which two statements are true about the duplexing of the backups taken by RMAN? （）(Choose two.)

• A、It's only supported for the backups performed on the tape
• B、It is not supported for backup operations that produce image copies
• C、Duplex backups need a parallelism for the device to be equal to number of copies
• D、Duplex backups can be performed to either disk or tape, but cannot be performed on tape and disk simultaneously

第6题：

Due to operational commitments， a system has a very short backup window during the week， but is not used from Saturday morning through Sunday at Midnight.  Which of the following minimizes backup and recovery time， while providing complete data restore coverage （）

• A、Full backups every month， daily incremental backups
• B、Full backups every month， daily differential backups
• C、Full backup Saturday night， incremental backups the rest of the week
• D、Full backup Saturday night， differential backups the rest of the week

第7题：

Every Sunday， consistent backups are performed on your database. Because of a user error， you performed an incomplete recovery on Tuesday and opened the database with the RESETLOGS option. A user error occurs again on Thursday， which necessitates an incomplete recovery. Sunday’s backup is the most recent backup available. What would you do in this scenario？（）

• A、recovery cannot be performed because a backup was not performed after the last incomplete recovery
• B、restore all the files from Sunday’s backup， and then perform an incomplete recovery up to the point in time when the user error occurred on Thursday
• C、restore all the files from Sunday’s backup， and then recover up to the point in time when the RESETLOGS operation was performed on Tuesday
• D、restore all the files from Sunday’s backup， and open the database to reset the database to the point in time when the backup was performed on Sunday

第8题：

A full backup is performed every Sunday and incremental backups are performed daily Monday through Saturday.  How many tapes would be required to perform a full restore if a complete failure occurred on Thursday before the incremental backup？（）

• A、 2
• B、 3
• C、 4
• D、 5

第9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.

第10题：

Which two requirements are critically important to implement for your database backup strategy if you require a 24 hours a day， 7 days a week production environment？（）

• A、ARCHIVELOG mode.
• B、NOARCHIVELOG mode.
• C、Open database backups.
• D、Consistent whole backups.