Answer / Pran Ranjan

A replica set is a group of MongoDB instances that maintain the same data, providing high availability and data durability. It allows for automatic failover in case one or more nodes fail.

Is mongodb atlas free?

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Is it required to call ‘getlasterror’ to make a write durable?

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Can mongodb store binary data?

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In mongodb how do you use $set to update a nested value?

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What is a covered query in mongodb?

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Is mongodb open source?

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Is mongodb better than sql?

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Does mongodb need a lot space of random access memory (ram)?

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How much does mongodb cost?

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Is mongodb better than other sql databases? If yes then how?

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Where mongodb data is stored?

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Is mongodb orm?

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