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Question 46

What is data encryption standard (DES)?

  1. ABlock cipher
  2. BStream cipher
  3. CBit cipher
  4. DNone of the above
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Correct answer: (A) Block cipher

Explanation

DES is a symmetric block cipher that encrypts data in 64-bit blocks with a 56-bit key.

From DSSSB TGT Computer Science Practice Set 5

This is question 46 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.