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Question 30Asked in DSSSB TGT Computer Science (Technical), 1 Aug 2021, Shift 1

In a demultiplexer,the number of output lines is n and the number of select lines is m. Which of the following is correct?

  1. An = 2^m
  2. Bm = 2^n
  3. Cn = 2m
  4. Dm = 2n
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Correct answer: (A) n = 2^m

Explanation

A demultiplexer with m select lines routes the input to one of 2^m outputs, so n = 2^m (e.g. 1-to-8 DEMUX has 3 select lines).

From DSSSB TGT Computer Science PYQ (Technical), 1 Aug 2021, Shift 1

This is question 30 of DSSSB TGT Computer Science PYQ (Technical), 1 Aug 2021, Shift 1. 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.