C# interview questions

What is the difference between out and ref parameters

Common mistakes when handling exceptions in C#

Parallel For vs Parallel ForEach in C#

Concurrent Collections in C#: Understanding Race Conditions and Deadlocks

Jagged Arrays vs Multidimensional Arrays in C#

What is a LinkedList in C#

Collection was modified; enumeration operation may not execute.

What are indexers in C#?

What is HashSet in C#?

How to calculate the difference between two dates in C#?

What is the volatile modifier in C#?

What are anonymous types in C#

Why use var in c#?

What is operator overloading in C#?

How to Pass or Access Command line Arguments in C#

How to Loop Through an Enum in C#

String vs string in C#

Double vs Decimal in C#. Which one should I use and when?

What is StringBuilder in C#?

What is LINQ in C#?

What are tuples in C#?

Randomize a List in C#

What are generics in c#?

What is the difference between method overriding and method overloading in C#?

How do I encrypt and decrypt a string in C#

What is a NullReferenceException and how do I fix it?

Shallow Copy and Deep Copy in C#

What is a deadlock in C#

What are memory leaks in C#

What is an assembly in C#

What is a Record in C#

What is the difference between is and as operators in C#?

What are the differences between .NET Framework, .NET Core, and .NET 7,.NET 8,.NET 9?

What is the difference between a virtual method and an abstract method in C#?

What is a delegate in C#

What is the garbage collector, and how does it work in C#?

What is the difference between early binding and late binding in C#

What is the difference between a sealed class and a static class in C#?

What is the Singleton Design Pattern in C#?

What is the difference between managed and unmanaged code in C#?

What is the IDisposable interface and how is it used in C#?

What is the difference between a shallow copy and a deep copy in C#?

What is the difference between string and StringBuilder in C#?

What is the ThreadPool in C#?

What is the async and await pattern in C#?

What is the difference between Task and Thread in C#?

Tuples in C# explained in 7 minutes

The difference between IEnumerable and IQueryable in C#?

Custom exceptions in C# explained in under 5 minutes, with code examples

Partial classes in C# explained in under 3 minutes