______________ rolls back all transactions that were incomplete at the time of crash.
A. Analysis pass
B. Redo pass
C. Undo pass
D. None of the mentioned
Answer:A
______________ rolls back all transactions that were incomplete at the time of crash.
A. Analysis pass B. Redo pass C. Undo pass D. None of the mentioned
Explanation:It performs a single backward scan of the log, undoing all transactions in undo-list.