Answer / Lavi Kumari

The `__v` field in Mongoose represents the number of times a document has been saved to the database.

What is the importance of covered query?

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How do I start mongodb in ubuntu?

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How does mongodb store data on disk?

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What is schema in mongodb?

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What query language does mongodb use?

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Is mongodb better than mysql?

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What is difference between mongod and mongodb?

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Can journaling feature be used to perform safe hot backups?

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Is mongodb for big data?

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What are mongodb indexes?

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What is mongodb sharding?

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