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MongoDB scales horizontally using _________ for load balancing purpose.

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in MongoDB by (131k points)
MongoDB scales horizontally using _________ for load balancing purpose.

(a) Replication

(b) Partitioning

(c) Sharding

(d) None of the mentioned

The question was asked by my college professor while I was bunking the class.

My doubt is from Big data and MongoDB in portion MongoDB and noSQL Concepts of MongoDB

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The correct option is (c) Sharding

The explanation is: The user chooses a shard key, which determines how the data in a collection will be distributed.

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