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    Question

    An RDBMS provides mechanisms for data integrity, such as

    primary keys and foreign keys, which are generally lacking in:
    A Object-Oriented Databases Correct Answer Incorrect Answer
    B NoSQL Databases Correct Answer Incorrect Answer
    C Hierarchical Databases Correct Answer Incorrect Answer
    D Flat-file systems Correct Answer Incorrect Answer
    E Network Databases Correct Answer Incorrect Answer

    Solution

    Flat-file systems

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