What does a block map contain in a file system snapshot?

A.
Address from which data is to be read when accessing the snapshot
B.
Original data when a write is issued to the target for the first time
C.
Blocks that have changed since the creation of the snapshot
D.
Blocks that have been modified in either the source or the target
The map will contain an address.
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good tip
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A. Address from Which Data is to be read when accessing the snapshot
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Correct answer is A
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