Beginner

Beginner Cosmos DB Interview Questions

Starting out with Cosmos DB? These 14 beginner-friendly Cosmos DB interview questions cover the fundamentals hiring managers expect from entry-level candidates — with plain-English answers, runnable code and the mistakes that trip people up.

14Questions14Beginner

14 Cosmos DB questions

  1. 1What is the difference between a Container and a Database in Cosmos DB?Beginner
  2. 2What is the Azure Cosmos DB Change Feed?Beginner
  3. 3What is Time to Live (TTL) in Cosmos DB?Beginner
  4. 4Explain the role of Throughput (Provisioned vs Autoscale).Beginner
  5. 5What is the 'id' property in Cosmos DB and how is it used?Beginner
  6. 6What is the difference between Logical and Physical partitions?Beginner
  7. 7What is a Partition Key and why is it mandatory?Beginner
  8. 8What are the different APIs supported by Azure Cosmos DB?Beginner
  9. 9Explain Request Units (RUs) in Cosmos DB.Beginner
  10. 10What is Azure Cosmos DB and what are its key features?Beginner
  11. 11What is a Partition Key in Cosmos DB?Beginner
  12. 12What is Azure Cosmos DB?Beginner
  13. 13Cosmos DB Advanced Interview Question 10Beginner
  14. 14Cosmos DB Advanced Interview Question 7Beginner

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Frequently asked questions

How many beginner Cosmos DB interview questions are there?

This page covers 14 beginner-level Cosmos DB interview questions, each with a short answer, a deeper explanation, code examples, common mistakes and follow-up questions.

Are these Cosmos DB questions suitable for beginner interviews?

Yes. Every question is tagged beginner difficulty and chosen to match what interviewers expect at that level, so you can focus your preparation without wading through questions that are too easy or too hard.

How should I practise these Cosmos DB questions?

Read the short answer first, attempt the question yourself, then expand the detailed explanation and real-world example. Review the common mistakes and follow-up questions to make sure you can handle interviewer probing.