单项选择题X 纠错
A.to uniquely identify the archived log files with the restore operation
B.to uniquely identify the archived log files with the redo log group number
C.to uniquely identify the archived log files for each incarnation of the database
D.to uniquely identify the archived log files with the number of recovery operations performed
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单项选择题
A.You must recover all data files to the required system change number (SCN).
B.You must recover all data files, except those that are offline, to the required SCN .
C.You must recover all data files belonging to the USERS tablespace to the required SCN.
D.You cannot recover all data files because segment space management is performed manually for the undo tablespace.
多项选择题
A.open the database with the RESETLOGS option
B.open the database with the RESTRICTED option
C.recover all the data files to the same system change number (SCN)
D.recover to the required SCN only that data file in which the error occurred
单项选择题
A.RMAN recovers up to log sequence 230, but not including 230.
B.RMAN returns an error because the log sequence number mentioned in the command should be 229.
C.RMAN returns an error because the log sequence number mentioned in the command may never be missing.
D.RMAN recovers up to and including log sequence 229 but then returns an error because log sequence 230 is missing.
多项选择题
A.RMAN image copies
B.RMAN database backups
C.RMAN tablespace backups
D.usermanaged backups placed in the flash recovery area
E.usermanaged backups that have been cataloged with RMAN
F.usermanaged data file backups for which the full path name is specified
单项选择题
A.only case 1
B.only case 2
C.only case 3
D.case 1 and 2
E.case 2 and 3
F.case 1 and 3
G.all cases: case 1, case 2 and case 3
单项选择题
A.A user table was lost at the specified time.
B.A redo log file was lost at the specified time.
C.The backup control file is on a faster disk than the current one.
D.The current control file has a different path compared with the intended time of recovery.
E.The current control file does not match the physical structure of the database at the intended time of recovery.
单项选择题
A.timebased recovery
B.log sequence recovery
C.cancelbased recovery
D.changebased recovery
多项选择题
A.You find that one of the redo log members in each redo log group is lost.
B.You find that a data file that belongs to the USERS tablespace is damaged.
C.You find that a data file that belongs to the SYSTEM tablespace is damaged.
D.You find that the current redo log group is damaged and is not available for recovery.
E.You realized while performing a recovery that an archived redo log file needed for recovery is lost.
单项选择题
A.until Thursday morning
B.until last Sunday’s backup
C.until Wednesday evening
D.until that point in time when the database is opened
E.until that point in time when the recovery is performed
F.until that point in time when the table is dropped and purged
单项选择题
A.restore all the data files from last Sunday’s backup, and then perform a timebased recovery
B.restore all the data files from last Sunday’s backup, and then perform a cancelbased recovery
C.restore all the data files from last Sunday’s backup, and then perform a changebased recovery
D.restore only data files that belong to the SYSTEM tablespace from last Sunday’s backup, and then perform a complete recovery