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Question 45

The data blocks of a very large file in UNIX file system are allocated using

  1. Acontiguous allocation
  2. Blinked allocation
  3. Cindexed allocation
  4. Dan extension of indexed allocation
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Correct answer: (D) an extension of indexed allocation

Explanation

UNIX inodes use an extended indexed scheme: 12 direct block pointers plus single, double and triple indirect blocks. This lets very large files be addressed.

From DSSSB TGT Computer Science Practice Set 3

This is question 45 of DSSSB TGT Computer Science Practice Set 3. 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.