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    Question

    Shadow Paging

    avoids:
    A Undo logs Correct Answer Incorrect Answer
    B Redo logs Correct Answer Incorrect Answer
    C Checkpoints Correct Answer Incorrect Answer
    D Both undo & redo logging Correct Answer Incorrect Answer
    E Write-ahead logging Correct Answer Incorrect Answer

    Solution

    Shadow paging maintains two page tables (shadow + current), eliminating undo/redo logging.

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