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Kerala PSC Daily Quiz: Operating Systems and Applications

All 20 questions from this finished quiz, with the correct answer and explanation. Finished 12 Nov 2026, 8:19 am IST.
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  1. 1. Which software acts as an intermediary between computer hardware and user applications, managing resources and running programs?

    A. Operating system

    B. Word processor

    C. Spreadsheet

    D. Web browser

    Answer: A. Operating system

    Why: The operating system manages hardware resources and provides the platform on which application software runs.

  2. 2. Which keyboard shortcut is commonly used to copy the selected text in Windows applications?

    A. Ctrl + X

    B. Ctrl + V

    C. Ctrl + C

    D. Ctrl + Z

    Answer: C. Ctrl + C

    Why: Ctrl + C copies the selection, Ctrl + X cuts it, Ctrl + V pastes it and Ctrl + Z undoes an action.

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