C# Interview Questions and Answers

These are the C# questions you'll encounter in technical interviews, each with a detailed written answer. Master core OOP concepts, then progress through async/await, LINQ, and the .NET ecosystem.

Last updated: Sep 21, 2026
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What is C#?

C# is a modern, object-oriented language developed by Microsoft. It runs on the .NET Framework and is used for web development, game development (Unity), desktop applications, and backend systems.

C# interviews focus on object-oriented design, async/await, LINQ, delegates, and the .NET ecosystem. You'll discuss memory management, garbage collection, and how to write clean, maintainable code.

C# proficiency is essential for .NET developers and critical for Unity game development. Master the language and you'll be competitive for a wide range of roles.

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