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Topic 1 - Data Representation (Hexadecimal Numbers)

Quiz by Mifthah Ahmed

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20 questions
Show answers
  • Q1
    What is the binary number 1001 1010 in hexadecimal?
    8B
    9A
    A9
    B8
    30s
  • Q2
    The hexadecimal EF can be converted to
    1101 1011
    1110 1111
    1111 0111
    1111 0001
    30s
  • Q3
    How is the number FF represented in binary?
    1010 1010
    0101 0101
    1111 0000
    1111 1111
    30s
  • Q4
    How is the hexadecimal 66 represented in binary?
    0001 1000
    1000 0001
    0110 0110
    1001 0001
    30s
  • Q5
    How is the hexadecimal A7 represented in binary?
    1010 0111
    0111 0111
    0111 1010
    1010 1010
    30s
  • Q6
    What is the base system for Hexadecimal?
    Base 10
    Base 8
    Base 2
    Base 16
    30s
  • Q7
    What does the term base 16 refer to?
    The number of characters that the hex system uses, 0-9 and A - F
    The number if items that can be represented using Hex
    The number of combinations that hex can hold
    The number that hex counts up until, 0 - 16
    30s
  • Q8
    One hex digit is equivalent to a __ bit binary sequence?
    2
    4
    8
    4
    30s
  • Q9
    Why is the hexadecimal system used?
    To complicate binary codes
    For computers to read easier
    To simplify binary codes
    So humans can not de-crypt binary
    30s
  • Q10
    What is a popular use of the hexadecimal system?
    Writing programs
    Programming network
    Shorthand for words
    Colour codes
    30s
  • Q11
    Why is hexadecimal used to represent color codes?
    To make it harder to understand
    To take up more space
    It is easier to and shorter to store hex over binary
    Because colors do not have a binary value
    30s
  • Q12
    What is the maximum number than can be represented by 1 hex character?
    16
    8
    4
    2
    30s
  • Q13
    Convert 11111 to Hexadecimal
    1F
    1E
    E1
    F1
    30s
  • Q14
    10110011 to Hex =
    A3
    C4
    B3
    2F
    30s
  • Q15
    0010101 to Hex =
    14
    11
    13
    15
    30s

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