MongoDB

⏷ 1. What is MongoDB, and how is it different from relational databases?

⏷ 2. Explain the document-oriented model in MongoDB

⏷ 3. What are collections and documents in MongoDB?

⏷ 4. What are BSON and JSON in MongoDB?

⏷ 5. How do you model relationships in MongoDB (e.g., embedding vs. referencing)?

⏷ 6. What are the advantages of using embedding over referencing in MongoDB?

⏷ 7. How does MongoDB handle schema design?

⏷ 8. How do you design a one-to-many relationship in MongoDB?

⏷ 9. How do you design a many-to-many relationship in MongoDB?

⏷ 10. How do you query documents in MongoDB?

⏷ 11. How do you insert, update, delete documents in MongoDB?

⏷ 12. What is the difference between findOne() and find() in MongoDB?

⏷ 13. What are indexes in MongoDB?

⏷ 14. How do you create an index in MongoDB?

⏷ 15. What types of indexes are available in MongoDB?

⏷ 16. How do you create an index in MongoDB?

⏷ 17. What are the performance considerations for indexes in MongoDB?

⏷ 18. What is the aggregation framework in MongoDB?

⏷ 19. How does the $match stage work in aggregation?

⏷ 20. How does the $group stage work in aggregation?

⏷ 21. What is the difference between the aggregation framework and map-reduce in MongoDB?

⏷ 22. How do you perform complex transformations using the aggregation framework?