Which statement correctly defines a NAND gate?

UP Police Computer Operator Grade A · 2016 · Computer Operator Grade A · 19 May 2016 Shift 1· Modified — slightly modified from the official paper; see the solution

1. A.

   A NAND gate is equal to negative AND (invert AND) gate.

2. B.

   A NAND gate is equal to NOR gate.

3. C.

   A NOR gate is equal to negative AND (invert AND) gate.

4. D.

   NOR gate is equal to negative OR (invert OR) gate.

Attempted by 46 students.