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Question 6

Which of the following statements is not correct?

  1. ALinked allocation of disk space allows only sequential access of data.
  2. BIndexed allocation of disk space allows direct access to disk blocks.
  3. CThere is no internal fragmentation in contiguous allocation of disk space.
  4. DThere is no external fragmentation in linked allocation of disk space.
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Correct answer: (C) There is no internal fragmentation in contiguous allocation of disk space.

Explanation

Contiguous allocation does suffer internal fragmentation, since a file's last block is usually only partly filled; its main problem is external fragmentation. The other three statements are correct.

From DSSSB TGT Computer Science Practice Set 5

This is question 6 of DSSSB TGT Computer Science Practice Set 5. 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.