Consider the 2-bit multiplexer (MUX) shown in the figure. For OUTPUT to be the…

Consider the 2-bit multiplexer (MUX) shown in the figure. For OUTPUT to be the XNOR of C and D, the values for A0, A1, A2, and A3 are

Answer: D. A0 = 1, A1 = 0, A2 = 0 and A3 = 1 — Output for XNOR is = C’D’ + CD Therefore answer should be 1001 as in C’D’ A0 will be selected and in CD A3 will be selected and in rest A1 and A2

1. A.

   A0 = 0, A1 = 1, A2 = 1 and A3 = 0

2. B.

   A0 = 0, A1= 0, A2 = 1 and A3 = 1

3. C.

   A0 = 1, A1 = 1, A2 = 0 and A3 = 0

4. D.

   A0 = 1, A1 = 0, A2 = 0 and A3 = 1

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