You are working on an Oracle Database 10g database. Because of data loss， you decided to perform a Flashback Database operation using the following command：
SQL> FLASHBACK DATABASE TO TIMESTAMP（SYSDATE 5/24）;
Which two statements are true？ （）
A.SYSDATE should not be used with TIMESTAMP.
B.The database must have multiplexed redo log files.
C.The database must be in the MOUNT state to execute the command.
D.The database must be opened with the RESETLOGS option after the flashback operation.
E.The entire database needs to be restored from the most recent backup before the flashback operation.
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A.Flashback Drop
B.Flashback Table
C.Flashback Database
D.Flashback Version Query
E.Flashback Transaction Query
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？（）
A.flash back all the tables in the data file， one by one
B.restore the data file to a new location and perform a media recovery
C.flash back the database; there is no need to restore the data file
D.restore the data file from the most recent backup and flash back the database
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
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
最新试题
The loss of the control file forced you to recreate the control file. After recreating it and opening the database， you find that some of the data files are named as MISSINGnnnnn， where nnnnn is a fivedigit number starting with 0. What could be the possible reason？（）
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？（）
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？（）
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？（）
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？ （）
On Tuesday， a junior DBA dropped an important application user account， whose schema has important tables. You are asked to recover all the objects in the schema. On investigation， you find that the user account was dropped at 11：00 a.m. and Sunday’s backup is the most recent backup. Which flashback feature would you use？（）
You configured the flash recovery area in the database. Which two files would you expect to find in the flash recovery area？ （）
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？（）
You performed a backup of the flash recovery area by using the following command for the first time：RMAN> BACKUP RECOVERY AREA; Which files in the flash recovery area are backed up？（）
In which case would you use the Flashback Database feature to perform a recovery？（）