1.

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 mentionedThe question was asked in an online interview.My question is based upon Serialization topic in division Hadoop I/O of Hadoop

Answer» CORRECT option is (c) reduce

Explanation: In some cases, it can be a SIMPLE SUM of the values.


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