AI-powered Back-end Developer mock interviews

How do you handle race conditions and ensure data consistency in a multi-threaded server-side application? Can you describe a specific scenario where this could be a critical issue and how you would mitigate it?

Can you explain the difference between synchronous and asynchronous programming in the context of server-side logic? Provide an example of when you would choose one over the other.

Can you explain the concept of database sharding and its importance in a high-traffic application?

How would you approach optimizing a database query that is performing poorly due to a large dataset? Please provide specific strategies you would consider.

Describe the process of handling and logging errors in a RESTful API, including best practices for providing meaningful error responses to clients.

Explain the concept of rate limiting in API development and discuss its importance in ensuring system reliability and security.

Explain the concept of OAuth 2.0 and how it is used in securing APIs.

Can you discuss the importance of implementing rate limiting in API security and provide examples of how it can prevent attacks?

Discuss the challenges and strategies involved in maintaining consistency and coherence in a distributed API system as it scales to handle increased traffic and load.

Can you explain the concept of horizontal scaling in the context of API design and how it differs from vertical scaling?

Describe a situation where you had to communicate a complex idea to a non-technical stakeholder. How did you ensure effective communication and understanding? What strategies did you use to overcome any potential misunderstandings?

Can you provide an example of a time when you had to navigate a challenging team dynamic to successfully deliver a project? How did you approach the situation and what was the outcome?