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Question 24Asked in DSSSB TGT Computer Science (Technical), 7 Aug 2021, Shift 2

In a multiplexer, the number of input is 'n'and the number of select lines is 'm'. Which of the following is correct?

  1. A2^m = n
  2. B2^n = m
  3. C2m = n
  4. D2n = m
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Correct answer: (A) 2^m = n

Explanation

m select lines can choose one of 2^m inputs, so a multiplexer with n inputs needs 2^m = n (e.g. 8 inputs need 3 select lines).

From DSSSB TGT Computer Science PYQ (Technical), 7 Aug 2021, Shift 2

This is question 24 of DSSSB TGT Computer Science PYQ (Technical), 7 Aug 2021, Shift 2. 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.