Digital Electronics-Number Systems and Codes

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