多项选择题

Your database is running in ARCHIVELOG mode. One of the data files, USERDATA01.dbf, in the USERS tablespace is damaged and you need to recover the file until the point of failure. The backup for the datafile is available. 
Which three files would be used in the user-managed recovery process performed by the database administrator (DBA)?() 

A. Redo logs 
B. Control file
C. The latest backup of only the damaged data file
D. The latest backup of all the data file in the USERS tablespace
E. Temporary files of temporary tablespace
F. Archive Logs since the latest backup to point of failure


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2.单项选择题You need to maintain a record of all transactions on some tables for at least three years. Automatic undo management is enabled for the database. What must you do accomplish this task?()

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

3.多项选择题You have enabled backup optimization for the RMAN environment. Identify two criteria on which RMAN will skip the file, if it has already been backed up.()

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

4.单项选择题

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.

5.单项选择题

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

6.多项选择题Which three types of files can be automatically placed in the flash recovery area fast recovery area in 11g Release 2?()

A. Alert log file
B. Archived redo log files
C. Control file autobackups
D. Server Parameter file (SPFILE)
E. Recovery Manager (RMAN) backup piece

7.单项选择题You want to use the automatic management of backup and recovery operations features for your database. Which configuration must you set?()

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.

8.多项选择题

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.

9.单项选择题

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.

10.多项选择题You are managing a 24*7 database. The backup strategy for the database is to perform user-managed backups. Identify two prerequisites to perform the backups.() 

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

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