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CCD-333 · Question #51
In a MapReduce job, the reducer receives all values associated with the same key. Which statement is most accurate about the ordering of these values?
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Question
In a MapReduce job, the reducer receives all values associated with the same key. Which statement is most accurate about the ordering of these values?
Options
- AThe values are in sorted order.
- BThe values are arbitrarily ordered, and the ordering may vary from run to run of the same
- CThe values are arbitrarily ordered, but multiple runs of the same MapReduce job will always
- DSince the values come from mapper outputs, the reducers will receive contiguous sections of
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