Practice test

Data representation - Test Set 9

Review 7 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

7 questions

Questions and explanations

  1. Question 1

    In computer number system, what is the binary value for decimal number (5) 10
    1. (101)₂
    2. (1100)₂
    3. (1010)₂
    4. (11)₂
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  2. Question 2

    The binary equivalent of the hexadecimal number 7 BD is___________.
    1. 101110111101
    2. 01111 0111101
    3. 111010111101
    4. All of these
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  3. Question 3

    To convert a binary number to an octal number, we divide the binary number into groups of ____________.
    1. four
    2. two
    3. three
    4. None of these
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  4. Question 4

    Binary Coded Decimal (BCD) numbers express each digit as a group of 4 _________.
    1. bit
    2. nibble
    3. byte
    4. All of these
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  5. Question 5

    It is an 8-bit alphanumeric code developed by IBM, supports 256 symbols.
    1. Unicode
    2. Gray code
    3. BCD code
    4. EBCDIC
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  6. Question 6

    This code is extensively used in shaft encoders.
    1. EBCDIC
    2. Gray code
    3. Unicode
    4. BCD code
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  7. Question 7

    Which code uses 16 bits ?
    1. BCD code
    2. EBCDIC
    3. Unicode
    4. Gray code
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