Gate CS-2014-3 Question Paper With Solutions

Q. 18 Consider the following combinational function block involving four Boolean
variables x,y,a,b where x,a,b are inputs and y is the output.

f (x, y, a, b)
{
   if (x is 1) y = a;
   else y = b;
}

Which one of the following digital logic blocks is the most suitable for implementing
this function?

(A) Full adder

(B) Priority encoder

(C) Multiplexor

(D) Flip-flop

Answer: (C)

Explanation:

Gate CS-2014-3 Question Paper With Solutions

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