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Test about computer architecture P4

  1. Question 1. For signed integers, 8 bits, use the 'Offset Code 2' method, the representation value of 81 is:

    1. 0101 0001

      1. 0000 1100

    3. 0000 1110

      1. 0100 1010
  2. Question 2. There is a representation of '1111 1101' for signed integers, 8 bits, using the 'Offset Code 2' method, its value is:

    1. Does not exist

    2. - 3

    3. 3

      1. 253
  3. Question 3. For numbers with accents, addition on the computer gives false results when:
      1. Add two positive numbers, give negative results
      1. Add two negative numbers, giving positive results
      1. Have to remember out of the highest bit
      1. Both a and b
  4. Question 4. Strip of unsigned integers, n bits in the computer are:

    1. 0 -> 2.n

      1. 0 -> 2.n - 1

    3. 0 -> 2n - 1

      1. 0 -> 2n
  5. Question 5. Determine the value of signed integers represented by offset code two: A = 11011011

    1. 35

      1. -35
      1. -37
      1. 37
  6. Question 6. Perform the addition of two unsigned integers: 71 + 25
      1. 01100000
      1. 01010000
      1. 10100000
      1. 01101000
  7. Question 7. Add 2 integers with the following signs: -71 + (+25)
      1. 00101110
      1. 01011100
      1. 01101110
      1. 01011101
  8. Question 8. Why is memory hierarchy?
      1. For ease of management
      1. To reduce costs when designing
      1. To reduce the time to read data of the CPU
      1. Both the a, b, c are correct
  9. Sentence 9. Subtract 2 signed integers: 80 - 58
      1. 100110110
      1. 101010110
      1. 100010110
      1. 100011110
  10. Question 10. Perform multiplication 2 signed integers: 12 x 11
      1. 10000100
      1. 11000100
      1. 11000010
      1. 10001001
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