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  3. 2nd Class
  4. Computers Science

2nd Class Computers Science Sample Paper Computer Science Olympiad Model Test Paper-7

  • question_answer
    Which one of the following extensions of file represents the file is a backup copy of another file?

    A) .txt                              

    B) .bak

    C) .corn                            

    D) All of these

    Correct Answer: B

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