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Production sharded clusters have exactly ______ config servers.

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Production sharded clusters have exactly ______ config servers.

(a) 1

(b) 2

(c) 3

(d) 4

I have been asked this question during a job interview.

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

1 Answer

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Best answer
The correct answer is (c) 3

Best explanation: Do not deploy production clusters without 3 config servers.

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