Languages interview preparation

C# & .NET Interview Questions & Practice

Enterprise-grade C# and the .NET ecosystem — OOP, LINQ, async/await, ASP.NET Core, EF Core, and modern .NET performance patterns.

Practice C# & .NET interview questions across beginner, intermediate, and advanced difficulty levels. Each session is built to help you review core concepts, spot gaps, and prepare for technical interviews.

What you will practice

Core C# & .NET concepts and terminology
Practical patterns, trade-offs, and production scenarios
Timed mock interview questions with explanations

Start the C# & .NET practice course or browse all 77 technology courses.

5,411+ hand-crafted questions across 77 technologies across the full Mock Interview Prep question bank.