Digital Logic Design – Digital Electronics MCQs Set-2 Contain the randomly compiled Digital Electronics Multiple Choice Questions Answers from various reference books and Questions papers for those who is preparing for the various Competitive Exams,Interviews and University Level Exams.

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1. In direct conversion from binary to hexadecimal, if the last group does not have 4- bits, then it is padded with ______________ to make it four bits.

  • Zeros
  • Ones
  • Two zeros and two ones
  • One zero and three ones

2. What is the hex equivalent of 916, a 4-bit binary number?

  •  11112
  •  10012
  •  01102
  •  11002

3. The sign information has to be encoded along with the ___________ to represent the integers completely.

  • No. of bits
  • Position
  • Magnitude
  • Weight

4. Which one is the possible technique for representing signed integers?

  • Signed Magnitude Representation
  • Diminished Radix-Complement Representation
  • Radix-Complement Representation
  • All of the above

5. What is used to represent the signed magnitude?

  • MSB
  • LSB
  • Both
  • None of the above

6. What is the corresponding hex number of the signed magnitude -127?

  •  (7F)16
  •  (FF)16
  •  (00)16
  •  (80)16

7. What are the two ways of representing the 0 with signed magnitude representation?

  • -0 and -0
  •  +0 and +0
  •  -0 and +0
  • None of the above

8. (FA)16 is the ________ one’s complement representation of -5.

  •  4-bit
  •  8-bit
  •  16-bit
  • 2-bit

9. 2’s complement is used to represent signed integers, especially __________ integers.

  • Negative
  • Positive
  • Both A and B
  • None of the above

10. In ___________________, to encode a negative number, first the binary representation of its magnitude is taken, complement each bit and then add 1.

  •  Signed integer representation
  • 1’s complement representation
  • 2’s complement representation
  • Radix complement representation
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