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Point out the correct statement.

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Point out the correct statement.

(a) Config servers are not replica sets

(b) Sharding requires a number of mongod instances with different configurations

(c) The config servers store the cluster’s metadata, while the cluster distributes data among one or more shard servers

(d) None of the mentioned

This question was addressed to me during an interview.

The query is from Run-time Database Configuration in chapter GridFS, BSON Datatype and Administration Concepts of MongoDB

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The correct answer is (d) None of the mentioned

The best explanation: The command line and configuration file interfaces provide MongoDB administrators with a large number of options and settings for controlling the operation of the database system.

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