You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature. Which statement will you use to enable the block change tracking feature?()
第1题:
You are shrinking the SCOTT.EMP table by executing the ALTER TABLE SCOTT.EMP SHRINK SPACE CASCADE statement. What is a prerequisite for shrinking the SCOTT.EMP table?()
第2题:
You want to drop the TBS1 tablespace from your database. You also want to delete the corresponding data files automatically, and not have to do it manually. What should you do?()
第3题:
You are maintaining your database in Oracle10g. While performing an incremental backup of the database, you want to back uponly those blocks that have changed since the last backup. Which file will you create to increase the performance of the backup operation while performing the incremental backup of the database?()
第4题:
To enable faster incremental backups, you enabled block change tracking for the database. Which two statements are true about the block change tracking file?()
第5题:
You enable block change tracking. You issue the following command: BACKUP INCREMENTAL LEVEL 0 DATABASE; The next day, you issue the following command: BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE; Which statement about the use of the change tracking file is true?()
第6题:
You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature.Which statement should you use to enable the block change tracking feature?()
第7题:
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING;
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE <path>;
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE <path>;
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING;
第8题:
the system change number
the locations of the redo log files
the locations of the datafiles
the physical location of all the database changes
第9题:
You must configure OMF in your database.
You must enable block change tracking feature in your database.
You must enable ROW MOVEMENT feature on the ORDERS table.
You must use the Flashback Version Query before using the Flashback Table feature.
第10题:
You must have change tracking enabled in your database
Your database must be running in NOARCHIVELOG mode
To back up a tablespace, it must be in backup mode
To back up a tablespace, it must first be taken offline
第11题:
redo log files
password file
control file
change tracking file
第12题:
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING
第13题:
You performed an incremental level 0 backup of a database: RMAN > BACKUP INCREMENTAL LEVEL 0 DATABASE; To enable block change tracking after the incremental level 0 backup, you issued this command: SQL > ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ‘ /mydir/rman_change_track.f’; To perform an incremental level 1 cumulative backup, you issued this command: RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE; Which three statements are true?()
第14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?()
第15题:
You have configured OMF in your database. You enabled the ALTER DATABASE ENABLE BLOCK CHANGE TRACKING; statement to enable the block change tracking feature. What information will be written in the change tracking file?()
第16题:
You are managing an Oracle Database 10g database that uses Oracle Managed Files (OMF). You enabled the block change tracking feature for the database. Which statement regarding the change tracking file is true?()
第17题:
You are managing a database for which incremental backups can be very time consuming. In order to perform optimized incremental backups you enable the block change tracking feature.How would you instruct RMAN to use the block change tracking feature when performing incremental backups?()
第18题:
You are performing flashback of the ORDERS table in the Scott’s schema because some important data is deleted in the table by mistake. The SCN number was 771513 at the time of deletion. You issued the following statement to perform Flashback Table: SQL> FLASHBACK TABLE ORDERS TO SCN 771513; What is the prerequisite to perform Flashback Table?()
第19题:
You need to mention it with every BACKUP command.
The block change tracking feature is used automatically by RMAN.
You need to configure it using the CONFIGURE command.
You need to set the necessary initialization parameters to direct RMAN to use the feature.
第20题:
Backup change tracking will sometimes reduce I/O performed during cumulative incremental backups.
The change tracking file must always be backed up when you perform a full database backup.
Block change tracking will always reduce I/O performed during cumulative incremental backups.
More than one database block may be read by an incremental backup for a change made to a single block.
The incremental level 1 backup that immediately follows the enabling of block change tracking will not read the change tracking file to discover changed blocks.
第21题:
Open the database in read-only mode.
Set the retention target with the DB_FLASHBACK_RETENTION_TARGET initialization parameter.
Enable the block change tracking feature.
Execute the ALTER DATABASE FLASHBACK ON statement.
第22题:
You must enable the block change tracking feature.
You must have enable the flashback feature.
You must use the OMF in your database.
You must define the tablespace of the SCOTT.EMP table for automatic segment space management.
第23题:
Multiple change tracking files can be created for a database.
The change tracking file must be created after the first level 0 backup.
RMAN does not support backup and recovery of the change tracking file.
The database clears the change tracking file and starts tracking changes again,after whole database restore and recovery operations.