Which two statements are true about making RMAN image copies of a database?
A.
They can only be written to disk.
B.
They can be made only when the database is running in NOARCHIVELOG mode.
C.
They can be made only when the database is in MOUNT state.
D.
They consist of all used and unused blocks in the data files.
E.
They can be made only when the database is running in ARCHIVELOG mode.
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By default, RMAN creates backup sets rather than image copies. A backup set consists of one or more backup pieces, which are physical files written in a format that only RMAN can access. A multiplexed backup set contains the blocks from multiple input files. RMAN can write backup sets to disk or tape.
If you specify BACKUP AS COPY, then RMAN copies each file as an image copy, which is a bit-for-bit copy of a database file created on disk. Image copies are identical to copies created with operating system commands like cp on Linux or COPY on Windows, but are recorded in the RMAN repository and so are usable by RMAN. You can use RMAN to make image copies while the database is open.
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