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Question 27Asked in DSSSB TGT Computer Science (Technical), 7 Aug 2021, Shift 2

Which of the following is an alternative to the log-based recovery schemes in database recovery system?

  1. AShadow paging
  2. BDe fragmentation
  3. CPre paging
  4. DDemand paging
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Correct answer: (A) Shadow paging

Explanation

Shadow paging is a recovery technique that needs no log: it keeps a shadow page table unchanged and a current page table for updates, and commits by switching tables.

From DSSSB TGT Computer Science PYQ (Technical), 7 Aug 2021, Shift 2

This is question 27 of DSSSB TGT Computer Science PYQ (Technical), 7 Aug 2021, Shift 2. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.