Number Systems and Codes problems
- 1. Convert the following hexadecimal number to binary.
14B16
Options- A. 1011010000012
- B. 0001010010112
- C. 0001010011012
- D. 1101010000012 Discuss
Correct Answer: 0001010010112
- 2. How many bits are in an ASCII character?
Options- A. 16
- B. 8
- C. 7
- D. 4 Discuss
Correct Answer: 7
- 3. A binary number's value changes most drastically when the ________ is changed.
Options- A. MSB
- B. frequency
- C. LSB
- D. duty cycle Discuss
Correct Answer: MSB
- 4. 3428 is the decimal value for which of the following binary-coded decimal (BCD) groupings?
Options- A. 11010001001000
- B. 11010000101000
- C. 011010010000010
- D. 110100001101010 Discuss
Correct Answer: 11010000101000
- 5. The sum of 11101 + 10111 equals ________.
Options- A. 110011
- B. 100001
- C. 110100
- D. 100100 Discuss
Correct Answer: 110100
- 6. The sum of the two BCD numbers, 0011 + 0011, is ________.
Options- A. 0110
- B. 0111
- C. 0011
- D. 1100 Discuss
Correct Answer: 0110
- 7. Convert binary 1001 to hexadecimal.
Options- A. 916
- B. 1116
- C. 10116
- D. 1016 Discuss
Correct Answer: 916
- 8. Which of the following is the primary advantage of using the BCD code instead of straight binary coding?
Options- A. Fewer bits are required to represent a decimal number with the BCD code.
- B. The relative ease of converting to and from decimal.
- C. BCD codes are easily converted to hexadecimal codes.
- D. BCD codes are easily converted to straight binary codes. Discuss
Correct Answer: The relative ease of converting to and from decimal.
- 9. 3 × 101 + 7 × 100 is equal to ________.
Options- A. 3.7
- B. 37
- C. 10
- D. 370 Discuss
Correct Answer: 37
- 10. The 2's complement of 11100111 is ________.
Options- A. 11100110
- B. 00011001
- C. 00011000
- D. 00011010 Discuss
Correct Answer: 00011001
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