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Question 26Asked in DSSSB TGT Computer Science (Technical), 7 Aug 2021, Shift 2

Both the inputs of NAND gate are connected to A. What will be the output?

  1. A0
  2. B1
  3. CA
  4. DA' (complement of A)
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Correct answer: (D) A' (complement of A)

Explanation

A NAND gate with both inputs at A gives (A·A)' = A', so it acts as a NOT gate.

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

This is question 26 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.