Examine the following commands and their output:SQL＞ SELECT ename, sal FROM emp WHERE e

A. Stored scripts in the recovery catalog

B. Backups that can be deleted from disk

C. Backup sets and images copies that are obsolete

D. Backups that do not have the AVAILABLE status in the RMAN repository

NCREMENTAL 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 USINGFILE ‘/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.

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.

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. 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

e the query as shown in the Exhibit to retrieve all versions of the row that exist between two SCNs.View the Exhibit.Which two statements about the results of the query shown in the Exhibit are correct?（）

A. The LAST_SCN value in the first row is NULL, which means that the versions of the row still exist at SCN 6636300. LAST_SCN

B. The LAST_SCN value in the second row in NULL, which means that the version of the row still exists at SCN 6636300.

C. The LAST_SCN value in the third row is 6636280, which means that the version of row exists above SCN 6636280.

D. The LAST_SCN value in the second row is NULL, which means that the version of the row no longer exists because it was deleted. LAST_SCN

A. The transactions that use the disk group will halt.

B. The mirroring of allocation units occurs within the CONTROLLER2 failure group.

C. The data in the CONTROLLER1 failure group is shifted to the CONTROLLER2 failure group and implicit rebalancing is triggered.

D. The ASM does not mirror any data and newly allocated primary allocation units (AU) are stored in the CONTROLLER2 failure group.

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.

A. The text alert log file will be available in Diag Trace

B. A copy alert log file will be kept in Diag Incident for every incident.

C. The XML version of the alert log file will be available in Diag Trace.

D. An Automatic Database Diagnostic Management (ADDM) report is generated and stored in the Health Monitor whenever an incident occurs.

being performed by Recovery Manager (RMAN). Identify two scenarios is which you must have a recovery catalog.（）

A. To store the backup information of multiple database

B. To restrict the amount of space that is used by the backups

C. To maintain a backup for a certain time is set by the CONTROL_FILE_RECORD_KEEP_TIME parameter.

D. To list the data files that were in a target database at a given time by using the AT option of REPORT SCHEMA command.