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    Question

    Which database management system feature helps ensure

    that all transactions are completed successfully and consistently?   
    A Data Integrity Correct Answer Incorrect Answer
    B Atomicity Correct Answer Incorrect Answer
    C Concurrency Control Correct Answer Incorrect Answer
    D Durability Correct Answer Incorrect Answer
    E Consistency Correct Answer Incorrect Answer

    Solution

    Atomicity is a property of database transactions that ensures each transaction is completed entirely or not at all. This means that if a transaction cannot be completed successfully, it will be rolled back to its previous state, maintaining the database's integrity and consistency. a) Data Integrity ensures the accuracy and consistency of data but is not specifically about transaction completion. c) Concurrency Control manages simultaneous transaction execution but does not guarantee complete transaction success. d) Durability ensures that once a transaction is committed, it is permanent, but it does not address incomplete transactions. e) Consistency ensures that transactions lead to a valid state of the database but does not handle incomplete transactions directly.

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