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
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You are working on Oracle Database 10g， which is in ARCHIVELOG mode. All the archived log files are intact.
In which scenario would performing a recovery require the opening of the database with the RESETLOGS option？（）
A.loss of a tempfile
B.loss of a system data file
C.loss of one of the control files
D.loss of one of the tablespaces
E.loss of a member from each redo log group
F.loss of the only member of an unarchived redo log group
You are using Oracle Database 10g. The LOG_ARCHIVE_FORMAT parameter is set to
’LOG%t_%s_%r.dbf’.
Why is %r used in the file name format？（）
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
View the Exhibit.
One of the important tables in the USERS tablespace was dropped and purged from the recycle bin at 9：00 a.m. You noticed this at 11：00 a.m. and you want to perform an incomplete recovery to recover the table.
Which statement is true？（）
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.
Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error， you decided to perform an incomplete recovery.
Which two tasks would you be required to perform in the recovery process？ （）
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
Your database operates in ARCHIVELOG mode. The redo log files are not multiplexed and one of the online redo logs is missing. The missing redo log sequence， 230， is not archived， and it contained information from 10：35 a.m. onwards.
The current time is 11：00 a.m. Because of a disk crash， you executed the following command to perform an incomplete recovery：
RMAN> RUN {
2> SET UNTIL SEQUENCE 230 THREAD 1;
3> ALTER DATABASE MOUNT;
4> RESTORE DATABASE;
5> RECOVER DATABASE;
6> ALTER DATABASE OPEN RESETLOGS;
7> };
With reference to this scenario， which statement is true？（）
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.
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
Consider the recovery steps in each of the cases given below：
Case 1：
Shut down the database and perform a backup.
Restore all the data files.
Mount the database.
Recover the database.
Without applying all the redo log files， open the database using the RESETLOGS option.
Back up the database.
Case 2：
Shut down the database and perform a backup.
Restore only the data files of the tablespace where user error damaged the data.
Mount the database.
Recover the database.
Open the database with the RESETLOGS option.
Back up the database.
Case 3：
Shut down the database
Restore the data files
Open the database
Perform recovery to the current point in time.
Which case has the correct steps for an incomplete recovery？（）
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
You performed an incomplete recovery on your Oracle Database 10g database using the following command：
SQL> RECOVER DATABASE
2 UNTIL TIME ’20040805：12：10：03’
3 USING BACKUP CONTROLFILE;
In which situation would the above recovery be required？（）
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.
The current time is 12：00 noon. You want to recover the USERS tablespace from a failure that occurred at 11：50 a.m. You discover that the only member of an unarchived redo log group containing information from 11：40 a.m. onwards is corrupt.
With reference to this scenario， if you are not using Recovery Manager （RMAN）， which recovery method would you use？（）
A.timebased recovery
B.log sequence recovery
C.cancelbased recovery
D.changebased recovery
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.
最新试题
You lost the index tablespace in your database. You are not able to use tablespace pointintime recovery on the index tablespace. What could be the reason for this？（）
You have only two redo log groups and these groups get overwritten several times in a day. Your database operates in NOARCHIVELOG mode and usermanaged consistent backups are performed every Sunday night. On Thursday morning， you find that an important table has been dropped and purged. With reference to this scenario， up to what point in time can the data be recovered？（）
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？（）
In your database， all the tablespaces are locally managed. You started Recovery Manager （RMAN） using recovery catalog and restored the control file by using the following command： RMAN> RESTORE CONTROLFILE; Which two operations do you need to perform after restoring the control file from backup？（）
In which case would you use the Flashback Database feature to perform a recovery？（）
A data file became corrupted in your database due to bad sectors on the disk. Because of corruption， you lost all the important tables in that data file.Which method would you use for recovery？（）
Your database operates in ARCHIVELOG mode and usermanaged consistent backups are performed every Sunday night. On Tuesday， at 9：00 a.m. the current log sequence number was 369. Also， on Tuesday you lost the data file belonging to the SYSTEM tablespace and an archivelog file （sequence number 356） that contained redo entries between 8：00 a.m. and 8：30 a.m. With reference to this scenario， what would you do to recover the database？（）
You configured the flash recovery area in the database. Which two files would you expect to find in the flash recovery area？ （）
View the Exhibit and examine the Flashback Database architecture. Identify the missing component （shown with a "？"） in the Flashback Database architecture.（）
You are working on Oracle Database 10g， which is in ARCHIVELOG mode. All the archived log files are intact. In which scenario would performing a recovery require the opening of the database with the RESETLOGS option？（）