to recover a dropped tablespace
to recover data from a truncated table
to recover a data file that has been shrunk
to recover a database to the state that existed before the RESETLOGS operation
Which method would you use to undo the changes made by a particular transaction without affecting the changes made by other transactions?（）A、point-in-time recoveryB、execute the ROLLBACK command with transaction numberC、flashback the database to before the transaction was committedD、determine all the necessary undo SQL statements from FLASHBACK_TRANSACTION_QUERY and use them for recovery
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In which case would you use the Flashback Database feature to perform a recovery？（）A、to recover a dropped tablespaceB、to recover data from a truncated tableC、to recover a data file that has been shrunkD、to recover a database to the state that existed before the RESETLOGS operation
You executed the following query in your database： SELECT oldest_flashback_scn， oldest_flashback_time FROM V$FLASHBACK_DATABASE_LOG； What would you determine from the output？（）A、 The time when the last flashback operation in your database was performed.B、 The time when the first flashback operation in your database was performed.C、 A list of flashback operations performed in your database using SCN and time.D、 The approximate time and the lowest system change number （SCN） to which you can flash back your database.
You are working on an Oracle Database 10g database. For which purposes would you use the Flashback Transaction Query feature？ （）A、 To recover a dropped table.B、 To recover a dropped schema.C、 To recover data from a truncated table.D、 To view changes made by all the transactions during a given period of time.E、 To view changes made by a single transaction during a given period of time.
You disabled the Flashback Database feature by using the following command： SQL> ALTER DATABASE FLASHBACK OFF; What would be the effect of this command on the existing flashback logs？（）A、Flashback logs are not deleted.B、Flashback logs are deleted automatically.C、Flashback logs are deleted only if you are using Recovery Manager （RMAN）.D、Flashback logs are deleted only if you are using Oracle Managed Files （OMF）.E、Flashback logs are deleted only if you are using Automatic Storage Management （ASM）.
You executed the following query in your database： FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output？（）A、the time when the last flashback operation in your database was performedB、the time when the first flashback operation in your database was performedC、a list of flashback operations performed in your database using SCN and timeD、the approximate time and the lowest system change number （SCN） to which you can flash back your database
You are managing a database for which incremental backups can be very time consuming. In order to perform optimized incremental backups you enable the block change tracking feature.How would you instruct RMAN to use the block change tracking feature when performing incremental backups？（）A、 You need to mention it with every BACKUP command.B、 The block change tracking feature is used automatically by RMAN.C、 You need to configure it using the CONFIGURE command.D、 You need to set the necessary initialization parameters to direct RMAN to use the feature.
