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    Question

    Which of the following are the layers of a data

    warehouse?
    A Data Extraction Layer, Data Source Layer, Staging Area Correct Answer Incorrect Answer
    B Data Modelling Layer, Data Source Layer, Staging Area Correct Answer Incorrect Answer
    C Data Extraction Layer, Data Transimission Layer, Staging Area Correct Answer Incorrect Answer
    D Data Modelling Layer, Data Source Layer, Extraction Area Correct Answer Incorrect Answer
    E Data Extraction Layer, Data Access Layer, Staging Area Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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