Computer MCQs (page 29 of 48)

Computer basics, hardware, software, networking, the internet, file formats, shortcuts and the people behind modern computing.

954 questions. Select an option to check your answer, or open "Show answer". Showing 561–580.

  1. 561.

    What is the decimal value of the binary number 11110011?

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    Answer: C. 243

    11110011 = 128 + 64 + 32 + 16 + 2 + 1 = 243.

  2. 562.

    What is the decimal value of the binary number 11110101?

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    Answer: C. 245

    11110101 = 128 + 64 + 32 + 16 + 4 + 1 = 245.

  3. 563.

    What is the decimal value of the binary number 11110110?

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    Answer: C. 246

    11110110 = 128 + 64 + 32 + 16 + 4 + 2 = 246.

  4. 564.

    What is the decimal value of the binary number 11111000?

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    Answer: B. 248

    11111000 = 128 + 64 + 32 + 16 + 8 = 248.

  5. 565.

    What is the decimal value of the binary number 11111010?

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    Answer: C. 250

    11111010 = 128 + 64 + 32 + 16 + 8 + 2 = 250.

  6. 566.

    What is the decimal value of the binary number 11111011?

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    Answer: C. 251

    11111011 = 128 + 64 + 32 + 16 + 8 + 2 + 1 = 251.

  7. 567.

    What is the decimal value of the binary number 11111100?

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    Answer: B. 252

    11111100 = 128 + 64 + 32 + 16 + 8 + 4 = 252.

  8. 568.

    What is the decimal value of the binary number 11111101?

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    Answer: A. 253

    11111101 = 128 + 64 + 32 + 16 + 8 + 4 + 1 = 253.

  9. 569.

    What is the decimal value of the binary number 11111110?

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    Answer: B. 254

    11111110 = 128 + 64 + 32 + 16 + 8 + 4 + 2 = 254.

  10. 570.

    What is the hexadecimal equivalent of decimal 82?

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    Answer: B. 52

    82 = 5×16^1 + 2×16^0, so it is 52 in hexadecimal.

  11. 571.

    What is the decimal value of the hexadecimal number 52?

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    Answer: B. 82

    52 = 5×16^1 + 2×16^0 = 82.

  12. 572.

    What is the hexadecimal equivalent of decimal 89?

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    Answer: B. 59

    89 = 5×16^1 + 9×16^0, so it is 59 in hexadecimal.

  13. 573.

    What is the decimal value of the hexadecimal number 59?

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    Answer: D. 89

    59 = 5×16^1 + 9×16^0 = 89.

  14. 574.

    What is the hexadecimal equivalent of decimal 96?

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    Answer: B. 60

    96 = 6×16^1 + 0×16^0, so it is 60 in hexadecimal.

  15. 575.

    What is the decimal value of the hexadecimal number 60?

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    Answer: B. 96

    60 = 6×16^1 + 0×16^0 = 96.

  16. 576.

    What is the hexadecimal equivalent of decimal 97?

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    Answer: D. 61

    97 = 6×16^1 + 1×16^0, so it is 61 in hexadecimal.

  17. 577.

    What is the decimal value of the hexadecimal number 61?

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    Answer: D. 97

    61 = 6×16^1 + 1×16^0 = 97.

  18. 578.

    What is the hexadecimal equivalent of decimal 100?

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    Answer: C. 64

    100 = 6×16^1 + 4×16^0, so it is 64 in hexadecimal.

  19. 579.

    What is the decimal value of the hexadecimal number 64?

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    Answer: B. 100

    64 = 6×16^1 + 4×16^0 = 100.

  20. 580.

    What is the hexadecimal equivalent of decimal 119?

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    Answer: D. 77

    119 = 7×16^1 + 7×16^0, so it is 77 in hexadecimal.