A. Enable supplemental logging for the database.
B. Specify undo retention guarantee for the database
C. Create Flashback Data Archive in the tablespace where the tables are stored.
D. Create Flashback Data Archive and enable Flashback Data Archive for specific tables
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A. The data file backup is done with multiple channels
B. The data files is in the read-write mode after being backed up in the read only mode
C. The backup was taken after the data files was taken offline-normal or is in the read only mode
D. The data file backup complies with the back retention policy and the backup duplexing fe ture
You want to set the following initialization parameters for your database instance：
LOG_ARCHIVE_DEST_1 = ’LOCATION=/disk1/arch’ LOG_ARCHIVE_DEST_2 = ’LOCATION=/disk2/arch’ LOG_ARCHIVE_DEST_3 = ’LOACTION=/disk3/arch’ LOG_ARCHIVE_DEST_4 = ’LOCATION=/disk4/arch MANDATORY’
Identify the statement that correctly describes this setting.（）
A. The MANDATORY location must be a flash recovery area.
B. The optional destinations may not use the flash recovery area.
C. This setting is not allowed because the first destination is not set as MANDATORY.
D. The online redo log file is not allowed to be overwritten if the archived log cannot be created in the fourth destination.
Before a Flashback Table operation，you execute the following command：
ALTER TABLE employees ENABLE ROW MOVEMENT；
Why would you need this to be executed？（）
A. Because row IDs may change during the flashback operation
B. Because the object number changes after the flashback operation
C. Because the rows are retrieved from the recycle bin during the flashback operation
D. Because the table is moved forward and back to a temporary during the flashback opertion
A. Alert log file
B. Archived redo log files
C. Control file autobackups
D. Server Parameter file （SPFILE）
E. Recovery Manager （RMAN） backup piece
A. Enable the flash recovery area and specify it as the archived redo log destination.
B. Disable the flash recovery area and start the database instance in ARCHIVELOG mode.
C. Enable the flash recovery area but do not specify it as the archived redo log destination.
D. Disable the flash recovery area and start the database instance in NOARCHIVELOG mode.
Examine the following command used to perform incremental level 0 backup：
RMAN> BACKUP INCREMENTAL LEVEL 0 DATABASE；
To enable the block change tracking， after the incremental level 0 backup you issued the following command：
SQL> ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ’/mydir/ rman_change_track.f’；To perform incremental level 1 cumulative backup， you issued the following command：
RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE；
Which two statements are true in the above situation？（）
A. The block change tracking data will be used only from the next incremental 0 backup.
B. The incremental backup will use change tracking data for accomplishing the backup.
C. The incremental backup will not use change tracking data for accomplishing the backup.
D. The block track file will scan all the blocks and create bitmap for all the blocks backed up in the level 0 backup.
To accomplish user-managed backup for the USERS tablespace， you issued the following command to put the database in backup mode：
SQL> ALTER TABLESPACE users BEGIN BACKUP；
While copying the file to the backup destination a power outage caused the instance to te minate abnormally.
Which statement is true about the next database startup and the USERS tablespace？（）
A. The database will open，and the tablespace automatically comes out of the backup mode.
B. The database will be mounted，and recovery must be performed on the USERS tablespace.
C. The database will be mounted，and data files in the USERS tablespace must be taken out of the backup mode.
D. The database will not be mounted，and you must restore all the data files for the USERS tablespace from the backup，and perform recovery.
A. The database must be opened in restricted mode.
B. The database must be configured to run in ARCHIVELOG mode.
C. The tablespaces are required to be in backup mode before taking the backup.
D. The tablespaces are required to be in read-only mode before taking the backup
Examine the following scenario：
-Database is running in ARCHIVELOG mode.
-Complete consistent backup is taken every Sunday.
-On Tuesday the instance terminates abnormally because the disk on which control files are located gets corruptedThe disk having active online redo log files is also corrupted.
The hardware is repaired and the paths for online redo log files and control files are still valid.
Which option would you use to perform the recovery of database till the point of failure？（）
A. Restore the latest whole backup，perform complete recovery，and open the database normally
B. Restore the latest whole backup，perform incomplete recovery，and open the database with the RESETLOGS option.
C. Restore the latest backups control file，perform complete recovery，and open the database with the RESETLOGS option.
D. Restore the latest backup control file，perform incomplete recovery using backup control file，and open the database with the RESETLOG option.
A. Limiting the input/output （I/O） bandwidth consumption
B. Specifying the size of backup sets and backup pieces
C. Specifying vendor-specific information for a media manager
D. Specifying the parallelism for backup and restore operations
最新试题
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.（）
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 two commands never trigger an implicit rebalancing within the disk group？（）
Which three statements are true about windows？（）
While Monitoring the space usage in your database that is in ARCHIVELOG mode you observed that the flash recovery area does not have enough free space to accommodate any more files and you do not have necessary permissions to add more space to it. Identify the two events that can occur in the event of a log switch？（）
Which three functions are performed by the SQL Tuning Advisor？（）
You want to take a complete database backup using RMAN. The backup should consist onlythe used blocks from your database. Which two statements are true about this backup operation？（）
User SCOTT wants to back out the transactions on the REGIONS table in his schema. As a DBA， which commands must you execute to enable SCOTT to flash back the transactions？（）
In Recovery Manager （RMAN）， you are taking image copies of the datafiles of your production database and rolling them forward as regular intervals. You attempt to restart your database instance after a regular maintenance task， you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the datafile by using the image copy. You could perform the following steps to accomplish this： 1） Mount the database 2） Take the data file offline 3） Bring the data file online 4） Use the RMAN SWITCH TO command to switch the image copy 5） Apply the archived redo logs 6） Open the database 7） Use the RMAN RESTORE TO command to switch to the image copy Which two options illustrate the correct sequence of steps that you could follow？（）
Which command creates an image copy？（）