GATE CS 2021 : Digital Logic Rapid Quiz-1 (App update required to attempt this test)

Number of covering function for a function f is, where function is given as

f(a,b,c,d) = ad+bc

If there is 3 variable use for function. Then the difference of number of neutral function possible and number of self-dual function is ____.

A, B and C are the inputs to a full subtractor. S₁ and S₀ are select lines of a multiplexer. Which of the following must be the information lines of a  multiplexer ,I₃ to produce borrow output of full subtractor at the output  of a MUX. (Multi Select Question)

Which of the following is the slowest adder?

How many adders are required to implement the following expressions:

D = A’BC + AB’C

E = A XOR B XOR C

F = A’C + ABC’ + B’C

Which of the following is correct