053-586

Consider the following command:
Backup database plus archivelog delete input;
How many backup sets would be created by this command if the following were true:
Control-file auto backups were enabled.
The size of backup sets was not restricted.
One channel was allocated.
A. 1
B. 2
C. 3
D. 4
E. 5

　　The following backup sets would be created:
　　　　One for an archive log backup before the main backup.
　　　　One for the main backup.Since we are using a single channel with no backup-set size restriction,RMAN would create a single backup set.
　　　　One for an archive log backup after the main backup.
　　　　One for the control-file autobackup.