Number Systems and Codes Questions and Answers

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Q91
Convert 52716 to binary.
  • A 343
  • B 001101000111
  • C 010100100111
  • D 011100100101
Answer: Option C
Q92
Convert 5278 to binary.
  • A 011100111
  • B 101010111
  • C 343
  • D 111010101
Answer: Option B
Q93
The base of the hexadecimal system is:
  • A eight.
  • B sixteen.
  • C ten
  • D two.
Answer: Option B
Q94
Assign the proper even parity bit to the code 1100001.
  • A 11100001
  • B 1100001
  • C 01100001
  • D 01110101
Answer: Option A
Q95
Select one of the following statements that best describes the parity method of error detection.
  • A Parity checking is best suited for detecting single-bit errors in transmitted codes.
  • B Parity checking is not suitable for detecting single-bit errors in transmitted codes.
  • C Parity checking is capable of detecting and correcting errors in transmitted codes.
  • D Parity checking is best suited for detecting double-bit errors that occur during the transmission of codes from one location to another.
Answer: Option A
Q96
Which of the following is the primary advantage of using the BCD code instead of straight binary coding?
  • 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.
Answer: Option B
Q97
How many BCD code bits and how many straight binary bits would be required to represent the decimal number 643?
  • A 12 BCD, 12 binary
  • B 12 BCD, 10 binary
  • C 12 BCD, 9 binary
  • D 16 BCD, 9 binary
Answer: Option B
Q98
When using the repeated division by 2 method of converting from decimal to binary, one must write the first remainder as the:
  • A MSB
  • B MSB, provided the following sequence of remainders are written in descending order until the final remainder is achieved.
  • C LSB
  • D LSB, provided the final remainder is used to replace the original LSB, which is then moved to the MSB position.
Answer: Option A
Q99
In ASCII code, the hexadecimal sequence 53 54 55 44 45 4E 54 decodes to STUDENT.
  • A TRUE
  • B FALSE
Answer: Option A
Q100
A decimal number is converted to BCD by replacing each decimal digit with the appropriate 3-bit binary code.
  • A TRUE
  • B FALSE
Answer: Option B

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