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______________ is used to minimize unnecessary redos during recovery.

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______________ is used to minimize unnecessary redos during recovery.

(a) Dirty page table

(b) Page table

(c) Dirty redo

(d) All of the mentioned

This question was addressed to me in examination.

This interesting question is from ARIES topic in chapter Recovery System of Database Management

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The correct option is (a) Dirty page table

The best explanation: Dirty pages are those that have been updated in memory, and the disk version is not up-to-date.

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