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To provide high availability and data consistency, in a production sharded cluster, each shard is a ___________

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To provide high availability and data consistency, in a production sharded cluster, each shard is a ___________

(a) replica set

(b) cluster

(c) partition

(d) all of the mentioned

This question was posed to me in quiz.

This intriguing question originated from Sharding Introduction topic in section Sharding Concepts, Mechanics and Sharded Cluster of MongoDB

1 Answer

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Best answer
Correct answer is (a) replica set

Easiest explanation: Each shard stores less data as the cluster grows.

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