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Computer MCQs (page 27 of 48)

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

Practise 10 questions Timed test

954 questions. Select an option to check your answer, or open "Show answer". Showing 521–540.

  1. 521.

    What is the decimal value of the binary number 10101110?

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    Answer: C. 174

    10101110 = 128 + 32 + 8 + 4 + 2 = 174.

  2. 522.

    What is the decimal value of the binary number 10110001?

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    Answer: B. 177

    10110001 = 128 + 32 + 16 + 1 = 177.

  3. 523.

    What is the decimal value of the binary number 10110110?

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    Answer: B. 182

    10110110 = 128 + 32 + 16 + 4 + 2 = 182.

  4. 524.

    What is the decimal value of the binary number 10110111?

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    Answer: C. 183

    10110111 = 128 + 32 + 16 + 4 + 2 + 1 = 183.

  5. 525.

    What is the decimal value of the binary number 10111000?

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    Answer: A. 184

    10111000 = 128 + 32 + 16 + 8 = 184.

  7. 526.

    What is the decimal value of the binary number 10111001?

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    Answer: B. 185

    10111001 = 128 + 32 + 16 + 8 + 1 = 185.

  8. 527.

    What is the decimal value of the binary number 10111010?

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    Answer: C. 186

    10111010 = 128 + 32 + 16 + 8 + 2 = 186.

  9. 528.

    What is the decimal value of the binary number 10111100?

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    Answer: C. 188

    10111100 = 128 + 32 + 16 + 8 + 4 = 188.

  10. 529.

    What is the decimal value of the binary number 10111101?

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    Answer: A. 189

    10111101 = 128 + 32 + 16 + 8 + 4 + 1 = 189.

  11. 530.

    What is the decimal value of the binary number 10111110?

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    Answer: D. 190

    10111110 = 128 + 32 + 16 + 8 + 4 + 2 = 190.

  12. 531.

    What is the decimal value of the binary number 10111111?

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    Answer: C. 191

    10111111 = 128 + 32 + 16 + 8 + 4 + 2 + 1 = 191.

  13. 532.

    What is the decimal value of the binary number 11000000?

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    Answer: C. 192

    11000000 = 128 + 64 = 192.

  14. 533.

    What is the decimal value of the binary number 11000001?

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    Answer: C. 193

    11000001 = 128 + 64 + 1 = 193.

  15. 534.

    What is the decimal value of the binary number 11000110?

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    Answer: B. 198

    11000110 = 128 + 64 + 4 + 2 = 198.

  16. 535.

    What is the decimal value of the binary number 11000111?

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    Answer: C. 199

    11000111 = 128 + 64 + 4 + 2 + 1 = 199.

  18. 536.

    What is the decimal value of the binary number 11001000?

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    Answer: B. 200

    11001000 = 128 + 64 + 8 = 200.

  19. 537.

    What is the decimal value of the binary number 11001001?

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    Answer: B. 201

    11001001 = 128 + 64 + 8 + 1 = 201.

  20. 538.

    What is the decimal value of the binary number 11001010?

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    Answer: C. 202

    11001010 = 128 + 64 + 8 + 2 = 202.

  21. 539.

    What is the decimal value of the binary number 11001011?

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    Answer: A. 203

    11001011 = 128 + 64 + 8 + 2 + 1 = 203.

  22. 540.

    What is the decimal value of the binary number 11001110?

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    Answer: B. 206

    11001110 = 128 + 64 + 8 + 4 + 2 = 206.