Question

    What is the purpose of a lock in concurrency

    control?
    A To prevent multiple transactions from accessing the same data simultaneously Correct Answer Incorrect Answer
    B To allow multiple transactions to access the same data simultaneously Correct Answer Incorrect Answer
    C To ensure the durability of the data Correct Answer Incorrect Answer
    D To synchronize the execution of transactions Correct Answer Incorrect Answer

    Solution

    To prevent multiple transactions from accessing the same data simultaneously

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