Free 1Z0-060 Web TestEngine Demo

Q19 Multiple choice

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? (Choose three.)

Select all that apply.

A
Backup change tracking will sometimes reduce I/O performed during cumulative incremental backups.
B
The change tracking file must always be backed up when you perform a full database backup.
C
Block change tracking will always reduce I/O performed during cumulative incremental backups.
D
More than one database block may be read by an incremental backup for a change made to a single block.
E
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.

1Z0-060 Web TestEngine demo