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Point out the correct statement.

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Point out the correct statement.

(a) A database is a set of key-value pairs

(b) A MongoDB deployment hosts a number of databases

(c) A document holds a set of collections

(d) All of the mentioned

This question was addressed to me during an interview.

This is a very interesting question from Getting Started with MongoDB topic in division MongoDB CRUD Concepts and Operation of MongoDB

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Correct choice is (b) A MongoDB deployment hosts a number of databases

The best I can explain: A database holds a set of collections. A collection holds a set of documents.

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