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    Question

    Which of the following is NOT a data transformation

    activity?
    A Filtering Correct Answer Incorrect Answer
    B Aggregation Correct Answer Incorrect Answer
    C Encryption Correct Answer Incorrect Answer
    D Joining Correct Answer Incorrect Answer
    E Normalization Correct Answer Incorrect Answer

    Solution

    Encryption is a security measure, not a transformation step. Transformation involves changing data format, structure, or values.

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