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    Question

    In a data cube, what does "slice" operation

    do?
    A Rotates the cube to show data from different perspectives Correct Answer Incorrect Answer
    B Selects a single dimension and reduces the cube by one dimension Correct Answer Incorrect Answer
    C Combines two or more dimensions Correct Answer Incorrect Answer
    D Performs data summarization Correct Answer Incorrect Answer
    E Joins fact tables Correct Answer Incorrect Answer

    Solution

    A slice fixes one dimension, creating a smaller sub-cube.

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