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Point out the wrong statement.

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Point out the wrong statement.

(a) moveChunks provides the ability to combine chunks on a single shard

(b) setShardVersion is used to set the config server version

(c) shardCollection enables the sharding functionality for a collection, allowing the collection to be sharded

(d) none of the mentioned

I had been asked this question in exam.

This intriguing question comes from Sharded Cluster Data Management in section Sharding Concepts, Mechanics and Sharded Cluster of MongoDB

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Correct answer is (d) none of the mentioned

Easiest explanation: For a sharded collection, mergeChunks combines contiguous chunk ranges on a shard into a single chunk.

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