Here are some interview questions specifically focused on C#:
- What is C#, and what are its key features and advantages?
- Explain the difference between value types and reference types in C#.
- How do you declare variables and constants in C#? Describe the differences between var, let, const, and readonly.
- What is object-oriented programming (OOP), and how does C# support it? Discuss the four pillars of OOP.
- Describe the difference between abstract classes and interfaces in C#. When would you use each one?
- What are access modifiers in C#? Explain the differences between public, private, protected, and internal.
- How does exception handling work in C#? Describe the try-catch-finally blocks and when you would use them.
- Explain the concept of generics in C#. How do you create and use generic types and methods?
- What is LINQ (Language Integrated Query), and how does it work in C#? Provide examples of how to use LINQ to query data.
- Describe the concept of delegates and events in C#. How do you use them to implement event-driven programming?
- Explain the difference between a class and a struct in C#.
- Discuss the concept of asynchronous programming in C#. How do you use async and await to handle asynchronous operations?
- What are extension methods in C#? Provide examples of when and how to use extension methods.
- Describe the concept of reflection in C#. How do you use reflection to inspect and manipulate types at runtime?
- Discuss your experience with C# frameworks and libraries (e.g., ASP.NET, .NET Core, Entity Framework). What are the advantages of using these frameworks?
- Explain the concept of garbage collection in C#. How does the garbage collector work, and how do you manage resources?
- What are the different types of collections in C#? Provide examples of collection classes and their uses.
- Describe the difference between IEnumerable and IQueryable in C#. When would you use each one?
- How do you handle concurrency and synchronization in C#? Explain the concepts of locks, threads, and thread synchronization mechanisms.
- Discuss your experience with unit testing in C#. What frameworks and tools have you used for unit testing?
These questions should help evaluate a candidate's understanding and experience with C#. Feel free to modify and add questions based on the specific requirements and level of expertise you are looking for.
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