Digital Computer Electronics MCQ – Set 09 :: Computer Science Engineering

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Q1. Which of the following is a universal gate?

(B) OR

Answer: (D) NAND

Q2. Conversion of decimal number 4210 to it’s octal number equivalent is

(A) 578
(B) 428
(C) 478
(D) 528

Answer: (D) 528

Q3. Conversion of binary number 1100012 to its decimal number is

(A) 2710
(B) 4910
(C) 3910
(D) 50105010

Answer: (B) 4910

Q4. What table shows the electrical state of a digital circuit’s output for every possible combination of electrical states in the inputs?

(A) Function table
(B) Truth table
(C) Routing table
(D) ASCII table

Answer: (B) Truth table

Q5. An XOR gate recognizes only words with an __ number of 1’s.

(A) Even
(B) Odd
(C) Different
(D) None of the above

Answer: (B) Odd

Q6. What does 4k represent?

(A) 4000
(B) 4096
(C) 40
(D) 400

Answer: (B) 4096

Q7. How many memory locations can 14 address bits access?

(A) 16,384
(B) 8,192
(C) 4,096
(D) 14

Answer: (A) 16,384

Q8. The digits used in a binary number system are and

(A) 9 and 0
(B) 0 and 1
(C) 1 and 2
(D) 3 and 4

Answer: (B) 0 and 1

Q9. A __ is a group of devices that store digital data.

(A) Circuits
(B) Register
(C) Variations
(D) Bit

Answer: (B) Register

Q10. Flip-flop outputs are always

(A) Complimentary
(B) The same
(C) Independent of each other
(D) Same as inputs

Answer: (B) Register

Q11. Conversion of an octal number 1108 to its decimal number is

(A) 7010
(B) 7210
(C) 7310
(D) 11010

Answer: (B) 7210

Q12. Conversion of binary number 11000012 to hexadecimal is

(A) 5716
(B) 6116
(C) 5116
(D) 4316

Answer:(B) 6116

Q13. What advantages do ICs have over discrete-device circuits due to their greater complexity (i.e. more circuitry in less area)

(A) Smaller size
(B) Higher reliability
(C) Lower cost
(D) All of the above

Answer: (D) All of the above

Q14. Express -7 as 16-bit signed binary numbers.

(A) 0000 0000 0000 0111
(B) 1000 0000 0000 0111
(C) 0111 0000 0000 0001
(D) 0111 0000 0000 0000

Answer: (B) 1000 0000 0000 0111

Q15. The XOR gates are ideal for testing parity because even-parity words produce a output and odd-parity words produce a output

(A) Low, high
(B) High, low
(C) Odd, even
(D) Even, odd

Answer: (A) Low, high

Digital Computer Electronics MCQ – All Set

Digital Computer Electronics Multiple Choice Questions – Set 01
Computer Electronics Degree Questions & Answers – Set 02
Digital Electronics MCQ Practice Test – Set 03
Computer Science Degree Electronics Exam Questions – Set 04
Digital Computer Science Questions & Answers – Set 05
Digital Science Interview Questions & Answers – Set 06
Digital Computer Electronics Interview Questions – Set 07
Computer Science Degree Electronics Questions – Set 08
Digital Computer Electronics Questions – Set 09
Computer Electronics Digital Questions & Answers – Set 10
Exam Preparation Questions Digital Computer Electronics – Set 11
Computer Based Test Computer Electronics – Set 12
Digital Electronics Objective Questions – Set 13
Digital Computer Electronics Quiz Questions – Set 14
digital computer electronics quiz questions set 15 pdf

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