Top 25 Back-End Developer Interview Questions and Answers

What is the role of a Back-End Developer?

What is RESTful API?

Explain the difference between SQL and NoSQL databases.

What is middleware?

How do you ensure the security of an API?

What is the significance of using version control systems?

What are microservices?

Can you explain the MVC architecture?

How do you handle error logging in your applications?

What is CORS and why is it important?

What is the purpose of using Docker in back-end development?

How do you optimize a database query?

What is the difference between synchronous and asynchronous programming?

Can you explain what a web server is?

What is session management in web applications?

How do you handle database migrations?

What is OAuth?

What are the advantages of using a framework for back-end development?

What is load balancing and why is it important?

How do you implement logging in your applications?

What is a CDN and how does it work?

What is the role of caching in web applications?

How do you ensure code quality in your projects?

What is the significance of a unit test?

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