Discussion
Backward recovery is used to reverse the changes made by transactions that have aborted, or terminated abnormally.
Answer: A
Correct answer: True
Backward recovery, or rollback, applies the before-images in reverse order to undo the effects of a transaction that did not complete. It restores the database to the state it held before the transaction began, which is what makes atomicity possible - a transaction either happens entirely or not at all.
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