Oracle OCP 1Z0-053 Q693(RMAN Image Copy)
693. Which two statements are true about an image copy backup? (Choose two.)
A. It may only be taken to disk.
B. It will contain only the used blocks.
C. It will contain all used and unused blocks.
D. It can be performed on disk as well as on tape.
Answer:AC
参考：http://docs.oracle.com/cd/E11882_01/backup.112/e10643/rcmsynta007.htm#CHDEHBEJ
Creates image copies (rather than backup sets).
A. It may only be taken to disk.
B. It will contain only the used blocks.
C. It will contain all used and unused blocks.
D. It can be performed on disk as well as on tape.
Answer:AC
参考：http://docs.oracle.com/cd/E11882_01/backup.112/e10643/rcmsynta007.htm#CHDEHBEJ
Creates image copies (rather than backup sets).
An image copy is a byte-for-byte identical copy of the original file. You can create image copy backups of data files, data file copies, and archived redo log files. Image copy files can only exist on disk. When using incrementally updated backups, the level 0 incremental must be an image copy backup.
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