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In the __________ phase, the system replays updates of all transactions by scanning the log forward from the last checkpoint.

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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) Undo

This question was posed to me in a job interview.

My question comes from Recovery in chapter Recovery System of Database Management

1 Answer

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Best answer
Right choice is (b) Redo

The explanation is: Undo brings the previous contents.

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