OCP 1Z0 053 183

183.Which of the following RMAN structures can data from a datafile span? 
A. RMAN backup-set pieces spanning backup sets 
B. RMAN backup-set pieces within a given backup set 
C. RMAN backups 
D. RMAN channels 
E. None of the above 
Answer: B 

file:///G:/book/Oracle/E11882_01/backup.112/e10642/glossary.htm#i432144

backup set

A backup of one or more data files, control files, server parameter files, and archived redo log files. Each backup set consists of one or more binary files. Each binary file is called a backup piece. Backup pieces are written in a proprietary format that can only be created or restored by RMAN.

Backup sets are produced by the RMAN BACKUP command. A backup set usually consists of only one backup piece. RMAN divides the contents of a backup set among multiple backup pieces only if you limit the backup piece size using the MAXPIECESIZE option of the ALLOCATE CHANNEL or CONFIGURE CHANNEL command.

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