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Question 21Asked in UGC NET Computer Science, June 2015 (Paper II & III, Selected Questions)

Database applications were built directly on top of file system to overcome the following drawbacks of using file-systems :

Database applications were built directly on top of file system to overcome the following drawbacks of using file-systems : (1) Data redundancy and inconsistency (2) Difficulty in accessing Data (3) Data isolation (4) Integrity problems
  1. A(1)
  2. B(1) and (4)
  3. C(1), (2) and (3)
  4. D(1), (2), (3) and (4)
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Correct answer: (D) (1), (2), (3) and (4)

Explanation

Traditional file system has all mentioned drawbacks. Database applications built by using tables are used to overcome them. eg : Normalization and integrity constraints reduces redundancy & inconsistency. Select * from table provide easy access to data references, joins etc removes data is action primary & foreign key along with check predicates solves integrity problem

From UGC NET Computer Science PYQ, June 2015 (Paper II & III, Selected Questions)

This is question 21 of UGC NET Computer Science PYQ, June 2015 (Paper II & III, Selected Questions). 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.