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MongoDB process collection of documents using _________ operations.

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MongoDB process collection of documents using _________ operations.

(a) Hbase

(b) Hive

(c) Map-reduce

(d) None of the mentioned

The question was posed to me in a job interview.

This is a very interesting question from CRUD Concepts in portion MongoDB CRUD Concepts and Operation of MongoDB

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Best answer
Right choice is (c) Map-reduce

The explanation: In addition to the basic queries, MongoDB provides several data aggregation features.

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