If you lost your entire database,including the database spfile,control files,online redo logs,and database datafiles,what kind of recovery would be required with RMAN?()  A、 Complete database recovery.B、 Incomplete database recovery.C、 Approximate database recovery.D、 Archived database recovery.E、 The database could not be recovered with RMAN.

If you lost your entire database,including the database spfile,control files,online redo logs,and database datafiles,what kind of recovery would be required with RMAN?()  

  • A、 Complete database recovery.
  • B、 Incomplete database recovery.
  • C、 Approximate database recovery.
  • D、 Archived database recovery.
  • E、 The database could not be recovered with RMAN.

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英译中:The shirt lost a button, could you sew it on for me?

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At database startup, you discover that one of the disks containing an index tablespace has been lost due to a media failure. A backup of the lost index tablespace is not available. You have all the necessary scripts to recreate the indexes. You need to re-create the indexes in a new index tablespace. Which action must you perform before re-creating the indexes?()A、 Start the database in OPEN mode, and create a new index tablespace.B、 Start the database in OPEN mode, and drop the lost index tablespace from the database.C、Start the database in MOUNT mode, create a new index tablespace, and drop the lost index tablespace from the database.D、 Start the database in MOUNT mode, drop the lost index tablespace from the database, open the database, and create a new index tablespace.

Redo log files are multiplexed in your database. The disk in which you have one of the redo log members is highly fragmented. In the process of defragmentation you lose the redo log member, which is not a member of the current group. How would you recover from the loss of the redo log member?()A、SMON would automatically restore the lost file.B、You would need to restore the whole database from the last backup.C、You would need to restore the file from the last full database backup.D、You would need to use flashback technology to restore the lost redo log member.E、You would need to use Recovery Manager (RMAN) to restore the lost redo log member.F、You would need to restore the missing log file by copying one of the remaining files from the same group.

When you are performing media recover, and an archived log is lost or corrupt, which type of recover must you perform?()A、Until SCNB、Until timeC、Until cancelD、Recover using backup control file.

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单选题In your production database, users report that they are unable to generate reports on an important table because it does not contain any data. While investigating the reason, you realize that another user executed the TRUNCATE TABLE command, which accidentally caused the data to be lost. Now you want to recover the lost data of the table without affecting objects in other schemas. Which method must you use to recover the lost data?()AComplete Recovery with online redo logBComplete Recovery with archived redo logCTablespace Point-in-Time Recovery (TSPITR)DIncomplete Recovery with system change number (SCN)

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单选题Your database is configured in NOARCHIVELOG mode. Due to a media failure, you have lost one of the datafiles belonging to a read-only tablespace. You know that the last backup was performed after the tablespace was made read-only. Which action should you take to restore the missing datafile in the minimum amount of time?()A Restore all the datafiles from the backup.B Restore only the lost datafile from the backup.C Restore all the datafiles for the lost tablespace from the backup.D Restore all the datafiles for the lost tablespace and all the SYSTEM and SYSAUX datafiles from the backup.

单选题Which statement about recovering from the loss of a redo log group is true?()A If the lost redo log group is ACTIVE, you should first attempt to clear the log file.B If the lost redo log group is CURRENT, you must clear the log file.C If the lost redo log group is ACTIVE, you must restore,perform cancel-based incomplete recovery,and open the database using the RESETLOGS option.D If the lost redo log group is CURRENT, you must restore,perform cancel-based incomplete recovery,and open the database using the RESETLOGS option.

单选题Telephone enquiry Clerk: Lost property department. Can I help you?  Phone caller: ______ I left it on the "Margate Mermaid" when we cross from Olsten yesterday morning.AI want you help me find my lost camera.BI wonder if you have a camera of mine.CDo you think if you have a camera of mine?DI doubt if you could help me find my lost camera.