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What is MongoDB read preference?

Read preference determines which replica set members MongoDB reads data from. Applications can choose primary, secondary, or nearest servers depending on consistency and performance requirements.

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What is MongoDB and why is it used?

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What is the difference between SQL and MongoDB?

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What are Collections and Documents in MongoDB?

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Jeevan Bhargav

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This answer is calibrated for technical interviews. Verify benchmarks in local sandboxes before deploying.