__Note:__We have tried to upload as much as we can, all the question and answers might be shuffled - Please find the answer below each question, some answers might be wrong please review on the last date(some answers might be changed) if you find any of the answer is wrong please comment down below.

**Question**

How many memory chips
of (64 x 2) are needed to provide a memory capacity of 2048 x 8?

A 32

B 128

C 4

D 16

Select one:

a. A

b. D

c. B

d. C

**The correct answer is : 128**

**Question**

In 2's complement
binary representation what is the magnitude of these two numbers
1001 & 11001

A -6 & 6

B 9 & 25

C -6 &
-6

D 9 & -6

Select one:

a. C

b. D

c. B

d. A

**The correct answer is :**-6 & -6

**Question**

Minimum no. of
two input NAND gate required to implement a Ex-OR function is

(A)2 (B)3

(C)4 (D)5

Select one:

a. A

b. D

c. B

d. C

**The correct answer is : 4**

**Question**

What is the logic
function implemented by the 2X1 mux shown below

A AND logic

B OR logic

C NAND logic

D Nor Logic

Select one:

a. d

b. A

c. c

d. b

**Question**

In Boolean expression
X+YZ equals

(A)(X+Y)(X+Z) (B)
(X'+Y)(X'+Z)

(C)(X+A)(X'+Z) (D)
(X+Y)Z

Select one:

a. C

b. D

c. A

d. B

**The correct answer is :** (X+Y)(X+Z)

**Question**

If a 3-input NOR gate
has eight input possibilities, how many of those possibilities will result in a
HIGH output?

A. 8
B. 4
C. 1
D. 0

Select one:

a. D

b. A

c. B

d. C

**The correct answer is : 1**

**Question**

A x-or B x-or C is
equal to A x-Nor B x-Nor C for

(A) A=0, B=1, C=0 (B)
A=1, B=0, C=1

(C) A=1, B=1, C=1 (D)
All of the above

Select one:

a. D

b. C

c. A

d. B

**The correct answer is :**

**All of the above**

**Question**

Gray code equivalent
of (1000)2 is

(A) (1111)G (B) (1100)G

(C) (1000)G (D) None of
these

Select one:

a. B

b. A

c. c

d. d

**The correct answer is :**

**(1111)G**

**Question**

What is the POS
of the function F(A, B, C, D) = ∑(0, 1, 2, 5, 8, 9, 10)

A (A’+B’)
.(C’+D’) .(B’+D)

B (A’+B’)
.(C+D’) .(B’+D)

C (A+B) .(C’+D’)
.(B’+D)

D (A’+B’) .(C’+D’)
.(B+D)

Select one:

a. D

b. C

c. A

d. B

**The correct answer is :** (A’+B’) .(C’+D’) .(B’+D)

**Question**

What is the minimum
number of 2 to 4 decoders with enable inputs are required to implement a
4 to 16 decoder

A 4

B 16

C 5

D 8

Select one:

a. B

b. C

c. D

d. A

**The correct answer is : 5**

Thank you so much.....

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