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Hadoop - Quiz(MCQ)
Which of the following class is provided by the Aggregate package?
A)
Map
B)
Reduce
C)
Reducer
D)
None of the above

Correct Answer :   Reducer


Explanation : Aggregate provides a special reducer class and a special combiner class, and a list of simple aggregators that perform aggregations such as “sum”, “max”, “min” and so on over a sequence of values.

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