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9th Grade > Mathematics

NUMBER SYSTEMS MCQs

Total Questions : 197 | Page 16 of 20 pages
Question 151. . How many BCD code bits and how many straight binary bits would be required to represent the decimal number 643?
  1.    12 BCD, 12 binary
  2.    12 BCD, 10 binary
  3.    12 BCD, 9 binary
  4.    16 BCD, 9 binary
 Discuss Question
Answer: Option B. -> 12 BCD, 10 binary
Question 152. . When using the repeated division by 2 method of converting from decimal to binary, one must write the first remainder as the:
  1.    MSB
  2.    MSB, provided the following sequence of remainders are written in descending order until the final remainder is achieved.
  3.    LSB
  4.    LSB, provided the final remainder is used to replace the original LSB, which is then moved to the MSB position.
 Discuss Question
Answer: Option C. -> LSB
Question 153. . The base of the hexadecimal system is:
  1.    eight.
  2.    sixteen.
  3.    ten.
  4.    two.
 Discuss Question
Answer: Option B. -> sixteen.
Question 154. . Select one of the following statements that best describes the parity method of error detection.
  1.    Parity checking is best suited for detecting single-bit errors in transmitted codes.
  2.    Parity checking is not suitable for detecting single-bit errors in transmitted codes.
  3.    Parity checking is capable of detecting and correcting errors in transmitted codes.
  4.    Parity checking is best suited for detecting double-bit errors that occur during the transmission of codes from one location to another.
 Discuss Question
Answer: Option A. -> Parity checking is best suited for detecting single-bit errors in transmitted codes.
Question 155. 0. Hex 4B5258 is ________ in ASCII code.
  1.    FGM
  2.    KLM
  3.    KRX
  4.    JQW
 Discuss Question
Answer: Option C. -> KRX
Question 156. 3. Hexadecimal 16 is ________ in decimal.
  1.    3210
  2.    2210
  3.    2510
  4.    2710
 Discuss Question
Answer: Option B. -> 2210
Question 157. . A complete alphanumeric code would include 26 lowercase letters, 26 uppercase letters, 10 numeric digits, 7 punctuation marks, and anywhere from ________ to ________ other characters.
  1.    5, 10
  2.    10, 15
  3.    10, 20
  4.    20, 40
 Discuss Question
Answer: Option D. -> 20, 40
Question 158. 2. The ________ code represents alphanumeric characters as seven-bit binary numbers.
  1.    ASCII
  2.    octal
  3.    alphanumeric
  4.    Boy Scout
 Discuss Question
Answer: Option A. -> ASCII
Question 159. 1. Most computers store data in strings of ________ bits called a ________.
  1.    8, word
  2.    8, byte
  3.    16, word
  4.    16, byte
 Discuss Question
Answer: Option B. -> 8, byte
Question 160. 4. Hexadecimal F2 is ________ in binary.
  1.    11100011
  2.    10100001
  3.    11110010
  4.    11111100
 Discuss Question
Answer: Option C. -> 11110010

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