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    Question

    Which of the following best describes a Data Warehouse?

    A A transactional database for real-time operations Correct Answer Incorrect Answer
    B A subject-oriented, integrated, time-variant, non-volatile collection of data Correct Answer Incorrect Answer
    C A system for random data storage Correct Answer Incorrect Answer
    D A flat file storing historical data only Correct Answer Incorrect Answer
    E An unstructured data repository Correct Answer Incorrect Answer

    Solution

    A data warehouse is defined as subject-oriented, integrated, time-variant, and non-volatile.

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