单项选择题
On Friday at 11:30 am you decided to flash back the database because of a user error that occurred at 8:30am.
Which option must you use to check whether a flashback operation can recover the database to the specified time?（）
A. Check the alert log file
B. Query the V$FLASHBACK_DATABASE_LOG view
C. Query the V$RECOVERY_FILE_DEST_SIZE view
D. Query the V$FLASHBACK_DATABASE_STAT view
E. Check the value assigned for the UNDO_RETENTION parameter
相关考题
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多项选择题
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 policy
B. The KEEP option is an attribute of an individual backup piece
C. The backup contains only data files and archived redo log files
D. The backup contains data files, the server parameter file and the control file even if the control file auto backup is disabled -
多项选择题
You need to perform a block media recovery on the tools01.dbf data file in the SALES database by using Recovery Manager (RMAN). Which two are the prerequisites to perform this operation? （）(Choose two)
A. You must configure block change tracking file
B. You must have first level 1 backups for RMAN to restore blocks
C. You must ensure that the SALES database is mounted or open
D. You must have full or level 0 backups for RMAN to restore blocks
E. You must take the tools01.dbf data file offline before you start a block media recovery -
单项选择题
Your database is running in ARCHIVELOG mode. You are performing a user-managed backup of the DATA1 tablespace. You place the DATA1 tablespace in backup mode by issuing the following statement： ALTER TABLESPACE data1 BEGIN BACKUP； While you are performing the backup， an error occurs that causes the instance to terminate abnormally. Which statement about the DATA1 tablespace is true？（）
A. The DATA1 tablespace is automatically taken out of backup mode when the instance aborts.
B. If you restart the database，the DATA1 tablespace will be automatically taken out of backup mode when the database is opened.
C. If you restart the database，the DATA1 tablespace will be automatically taken out of backup mode when the database is mounted.
D. If you restart the database，the database will not be opened.
