# Welcome to the Computer Architecture MCQs Page

Dive deep into the fascinating world of Computer Architecture with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Computer Architecture, a crucial aspect of GATE CSE Exam. In this section, you will encounter a diverse range of MCQs that cover various aspects of Computer Architecture, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within GATE CSE Exam.

Check out the MCQs below to embark on an enriching journey through Computer Architecture. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of GATE CSE Exam.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Computer Architecture. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

### Computer Architecture MCQs | Page 1 of 20

Q1.
Which one of the following expressions does NOT represent exclusive NOR of x and y?
Answer: (d).x' ^ y' where ^ is XOR
Q2.
The simplified SOP (Sum Of Product) form of the boolean expression (P + Q' + R') . (P + Q' + R) . (P + Q + R') is
Answer: (b).(P + Q'.R')
Q3.
The minterm expansion of f(P, Q, R) = PQ + QR' + PR' is
Answer: (a).m2 + m4 + m6 + m7
Q4.
What is the minimum number of gates required to implement the Boolean function (AB+C)if we have to use only 2-input NOR gates?

a.

2

b.

3

c.

4

d.

5

Q5.
If P, Q, R are Boolean variables, then (P + Q')(PQ' + PR)(P'R' + Q') simplifies
Q6.
How many 3-to-8 line decoders with an enable input are needed to construct a 6-to-64 line decoder without using any other logic gates?

a.

7

b.

8

c.

9

d.

10

Q7.
Consider the following Boolean function of four variables: f(w,x,y,z) = ∑(1,3,4,6,9,11,12,14) The function is:
Answer: (b).independent of two variables
Q8.
Let f(w, x, y, z) = ∑(0, 4, 5, 7, 8, 9, 13, 15). Which of the following expressions are NOT equivalent to f?
Answer: (d).x'y'z' + wx'y' + w'y
Q9.
Define the connective * for the Boolean variables X and Y as: X * Y = XY + X' Y'. Let Z = X * Y.
Consider the following expressions P, Q and R.

P: X = Y⋆Z
Q: Y = X⋆Z
R: X⋆Y⋆Z=1

Which of the following is TRUE?
Answer: (d).All P, Q, R are valid
Q10.
Suppose only one multiplexer and one inverter are allowed to be used to implement any Boolean function of n variables. What is the minimum size of the multiplexer needed?
Answer: (c).2^(n-1) line to 1 line
Page 1 of 20

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