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The ________ method in the ModelCountReducer class “reduces” the values the mapper collects into a derived value.

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in Hadoop by (122k points)
The ________ method in the ModelCountReducer class “reduces” the values the mapper collects into a derived value.

(a) count

(b) add

(c) reduce

(d) all of the mentioned

The question was asked in an online interview.

My question is based upon Serialization topic in division Hadoop I/O of Hadoop

1 Answer

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by (888k points)
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Best answer
Correct option is (c) reduce

Explanation: In some cases, it can be a simple sum of the values.

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