2. Sample Papers
  3. 5th Class
  4. Computers Science

5th Class Computers Science Sample Paper Computer Science Olympiad Model Test Paper-3

  • question_answer
    Which one of the following is the source of computer virus?

    A) Email

    B) Downloaded files

    C) Corrupted CD

    D) All of these

    E) None of these

    Correct Answer: D

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