1.

In the __________ phase, the system replays updates of all transactions by scanning the log forward from the last checkpoint.(a) Repeating(b) Redo(c) Replay(d) UndoThis question was posed to me in a job interview.My question comes from Recovery in chapter Recovery System of Database Management

Answer»

Right CHOICE is (B) Redo

The EXPLANATION is: Undo brings the PREVIOUS contents.



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