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May 18, 2026 · 1 min read

Can you explain how MongoDB handles indexing and how you would choose which fields to index in a large collection?

MongoDB uses B-trees to manage indexes, which allows for efficient querying. When deciding which fields to index, I consider the frequency of queries, the selectivity of the fields, and whether…

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📅 May 18, 2026 ⏱ 1 min read

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Can you explain how MongoDB handles indexing and how you would choose which fields to index in a large collection?

COVER // CAN YOU EXPLAIN HOW MONGODB HANDLES INDEXING AND HOW YOU WOULD CHOOSE WHICH FIELDS TO INDEX IN A LARGE COLLECTION?

MongoDB uses B-trees to manage indexes, which allows for efficient querying. When deciding which fields to index, I consider the frequency of queries, the selectivity of the fields, and whether the fields are involved in sorting or filtering operations.

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