You want to set the following initialization parameters for your database instance：
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.
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A database instance is using an Automatic Storage Management (ASM) instance, which has a disk group, DGROUP1, created as follows:
What happens when the whole CONTROLLER1 Failure group is damaged?（）
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.
The EMP table has some discrepancy in data entry with a particular employee ID. You execute 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
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 terminate 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. 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
Examine the following commands and their output:
SQL> SELECT ename, sal FROM emp WHERE ename='JAMES'; ENAME SAL JAMES 1050
QL> UPDATE emp SET sal=sal+sal*1.2 WHERE ename='JAMES';
1 row updated.
SQL> SELECT ename, sal FROM emp WHERE ename='JAMES'; ENAME SAL JAMES 2310
View the exhibit and examine the Flashback Version Query that was executed after the preceding commands.
What could be the possible cause for the query not displaying any row?（）
A. Flashback logging is not enabled for the database.
B. The changes made to the table are not committed.
C. Supplemental logging is not enabled for the database.
D. The database is not configured in ARCHIVELOG mode.
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
最新试题
Examine the following RMAN script:Which statement describes the purpose of the script?（）
You want to enable automatic PGA memory management in your database. Which setting is required to achieve this?（）
Which three functions are performed by the SQL Tuning Advisor? （）
You are working in an online transaction processing (OLTP) environment. You use the FLASHBACKTABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command, the system change number (SCN) was 663571. After flashing back the CUSTOMERS table, you realize that the table is not in the correct state. Now, you need to reverse the effects of the FLASHBACK TABLE command.Which is the fastest and the most efficient option to reverse the effects of the FLASHBACK TABLE command?（）
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:Which option illustrates the correct sequence that you must use?（）
Identify the persistent configuration setting for the target database that can be set for the backup by using RMAN.（）
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?（）
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?（）
After you have restored and recovered a database to a new host by using a previously performed Recovery Manager (RMAN) backup, which is the best option you would consider for the new database?（）