Question: answer ( MCQ ) : Database transaction durability ensures that in the event of a system failure A . a transaction is not lost once

answer (MCQ): Database transaction durability ensures that in the event of a system failure
A. a transaction is not lost once it has been committed.
B. a transaction is completed uninterrupted.
C. a transaction is revered before it is executed.
D. a transaction is saved before failure occurs.

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