OCP 1Z0 053 132

132.You are managing an Oracle Database 11g database. You want to take the backup of MULT_DATA, a 
big file tablespace of size 100 TB on tape drive, but you have tapedrives of only 10 GB each. Which 
method would accomplish the task quickly and efficiently? 
A. parallel image copy backup 
B. backup with MAXPIECESIZE configured for the channel 
C. parallel backup with MAXPIECESIZE configured for the channe 
D. intrafile parallel backup 
Answer: D

http://docs.oracle.com/cd/E11882_01/backup.112/e10642/rcmbckad.htm#BRADV257

Dividing the Backup of a Large Data File into Sections

If you specify the SECTION SIZE parameter on the BACKUP command, then RMAN creates a backup set in which each backup piece contains the blocks from one file section. A file section is a contiguous range of blocks in a file. This type of backup is called a multisection backup.