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Question 14Asked in DSSSB TGT Computer Science (Technical), 12 Sep 2025, Shift 2 (1:00 PM)

Which of the following best describes the function of a NOT gate?

  1. AIt performs logical multiplication.
  2. BIt passes the input as output without change.
  3. CIt performs logical addition.
  4. DIt inverts the input signal.
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Correct answer: (D) It inverts the input signal.

Explanation

A NOT gate (inverter) has one input and outputs its complement: 0 becomes 1 and 1 becomes 0. AND is logical multiplication and OR is logical addition.

From DSSSB TGT Computer Science PYQ (Technical), 12 Sep 2025, Shift 2 (1:00 PM)

This is question 14 of DSSSB TGT Computer Science PYQ (Technical), 12 Sep 2025, Shift 2 (1:00 PM). 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.