Q4: Choose the correct answer: 1) Total number of inputs in a half adder is (a)2 (b) 3 (c) 4 (d) 1 2) The expression X = A + B means (a) A OR B (b) A AND B (c) A XOR B (d) A XNOR B 3)Which number...

Extracted text: Q4: Choose the correct answer: 1) Total number of inputs in a half adder is (a)2 (b) 3 (c) 4 (d) 1 2) The expression X = A + B means (a) A OR B (b) A AND B (c) A XOR B (d) A XNOR B 3)Which number system has a base 16 (a)Hexadecimal (b)Оctal (c)Binary (d)Decimal 4) According to boolean law: A + 1 =? (а) 1 (b) A (c) A' (d) 0 5) l's complement of 1011001 is: (a) 0100111 (b) 0101100 (c) 0100110 (d) 0110110 6) DeMorgan's Law states that: (a) (A+B)' = A*B (b)(АB) %3D А' + B' (c)(АВ) %3D А' + В (d)(АB)' %3D А + в 7) The o/p of half adder is in the form of : (a) Sum (b) Сarry (c) Sum and Carry (d) None of these 8) are arithmetic gates. (a) NOT (b) NAND & NOR (c)X-OR & X-NOR (d) AND &OR