A. Opening the database in RESTRICTED mode
B. Opening the database with the RESETLOGS option
C. Setting a new DBID for the newly restored database
D. Restoring the server parameter file （SPFILE） to the new host
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A. ALTER DATABASE FLASHBACK ON
B. GRANT SELECT any transaction TO scott
C. GRANT EXECUTE ON dbms_flashback TO scott
D. ALTER DATABASE ADD SUPPLEMENTAL LOG DATA
E. ALTER TABLESPACE undots1 RETENTION GUARANTEE
F. ALTER DATABASE ADD SUPPLEMENTAL LOG DATA （PRIMARY KEY） COLUMNS
Examine the following RMAN script：
RMAN> run { debug on；
allocate channel c1 type disk； backup datafile 5； }
Which statement describes the purpose of the script？（）
A. The data file is checked for physical corruption and backed up if found clean.
B. The backup of data file 5 is performed and the interactive messages during the backup are suppressed.
C. The existing backup for the data file is checked and the backup is performed if there are changes in the data file after the last backup.
D. The backup of data file 5 is performed and all SQL statements that are executed during RMAN compilation and their results are displayed
A. An upper limit on how far you can flash back the database，depending on the information in the redo logs
B. An upper limit on how far you can flash back the database，depending on the information in the undo tablespace
C. The amount of time for which the flashback data is to be kept in the flash recovery area， provided that there is enough space
D. The amount of time for which the flashback data is guaranteed to be kept in the undo tablespace，provided that there is enough space
A. The ADR base keeps all diagnostic information in binary format
B. SQL*Plus provides the ADRI script， which can be used to work with ADR
C. The ADR can be used for problem diagnosis only when the database is open
D. The ADR can be disabled by settting the DIAGNOSTIC_DEST parameter to null
E. The ADR can be used for problem diagnosis even when the database instance is down
F. The ADR base is shared across multiple instances
A. Backup compression should be enabled
B. Parallelism for the channel should be set to 2
C. All the files must be backed up as backup sets
D. The backup may be stored either on disk or on media with media manager
A. Setting the FAST_START_MTTR_TARGET to set the mean time to recover
B. Setting the RECOVERY_PARALLELISM parameter to twice the number of CPUs
C. Using the DB_RECOVERY_FILE_DEST parameter to set the location for flash recovery area
D. Using the DB_RECOVERY_FILE_DEST_SIZE parameter to define the disk space limit for the recovery files created in the flash recovery area
A. Multiple change tracking files can be created for a database.
B. The change tracking file must be created after the first level 0 backup.
C. RMAN does not support backup and recovery of the change tracking file.
D. The database clears the change tracking file and starts tracking changes again，after whole database restore and recovery operations.
You want to configure the Flashback Database feature and retain flashback logs for three days.
Presently the database is open and configured in ARCHIVELOG mode. The following steps must be performed in the correct sequence to do this：
1. Set the retention target：
SQL> ALTER SYSTEM SET DB_FLASHBACK_RETENTION_TARGET=4320；
2. Enable Flashback Database：
SQL> ALTER DATABASE FLASHBACK ON；
3. Mount the database：
SQL> STARTUP MOUNT EXCLUSIVE
4. Shutdown the instance： SQL> SHUTDOWN IMMEDIATE
5. Open the database：
SQL> ALTER DATABASE OPEN；
Choose the correct sequence.（）
A. 4， 1， 3， 2， 5
B. 4， 3， 1， 2， 5
C. 2， 4， 3， 5， 1
D. 4， 2， 5， 3， 1
A. ALTER DISKGROUP misc MOUNT
B. ALTER DISKGROUP misc DROP DISK misc2
C. ALTER DISKGROUP misc CHECK ALL NOREPAIR
D. ALTER DISKGROUP misc RESIZE ALL SIZE 1023m
E. ALTER DISKGROUP dgroupA ADD DISK ’/devices/A*’
最新试题
Tape streaming is not happening while performing RMAN tape backup. On investigation， you find that it is not because of the incremental backup or the empty file backup and that RMAN is sending data blocks to the tape drive fast enough. What could be a solution to make tape streaming happen during the backup？（）
You are using Recovery Manager （RMAN） with a recovery catalog to back up your production database. The backups and the archived redo log files are copied to a tape drive on a daily basis. Because of media failure， you lost your production database completely along with the recovery catalog database. You want to recover the target database and make it functional. You consider performing the following steps to accomplish the task： 1） Restore an autobackup of the server parameter file.2） Restore the control file 3） Start the target database instance 4） Mount the database 5） Restore the data files 6） Open the database with RESETLOGS option 7） Recover the data files 8） Set DBID for the target database Which option illustrates the correct sequence that you must use？（）
Which two client requests are captured during database replay Capture？（）
Which command creates an image copy？（）
Indentify two advantages of using recovery catalog instead of the control file of the database in Recovery Manager （RMAN）.（）
Examine the following RMAN command： RMAN> CONFIGURE ENCRYPTION FOR DATABASE ON； RMAN> BACKUP DATABASE PLUS ARCHIVELOG； Which prerequisite must be met before accomplishing the backup？（）
Which three tasks can be performed using a duplicate database？（）
The BACKUP_TAPE_IO_SLAVES parameter is set to FALSE for the database instance. Which statement is true while performing a tape backup in an RMAN session？（）
Which option is best practice for creating a recovery catalog owner in the catalog database？（）
Which two commands never trigger an implicit rebalancing within the disk group？（）