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Question 160

An index in a database is mainly used to:

  1. ASpeed up data retrieval
  2. BBack up data
  3. CStore duplicate data
  4. DEncrypt tables
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Correct answer: (A) Speed up data retrieval

Explanation

Indexes reduce search time at some storage cost.

From DSSSB TGT Computer Science Full Mock Test 4

This is question 160 of DSSSB TGT Computer Science Full Mock Test 4. 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.