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Which of the following database command is used for mapreduce function?

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Which of the following database command is used for mapreduce function?

(a) mapReduce

(b) mapperRed

(c) redmap

(d) none of the mentioned

I got this question during an interview for a job.

This intriguing question originated from Map-Reduce in chapter Aggregation Concepts and Aggregation Mechanics of MongoDB

1 Answer

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Best answer
The correct answer is (a) mapReduce

To explain: For map-reduce operations, MongoDB provides the mapReduce database command.

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