C#

What is the difference between reference types and value types in C#?

What is the difference between the methods FirstOrDefault and SingleOrDefault?

What lifecycle methods of requests exist in ASP.NET Core?

How does routing work in ASP.NET?

What is the throw operator in C#?

What is the difference between Dictionary and HashSet?

How does string comparison work in C#? Are object references for strings compared?

What is the difference between Dictionary and ConcurrentDictionary?

What is transient in the context of C#?

What is a purchase order in Zen?

How to implement the Singleton pattern in C#?

What approaches exist within the EF Core ecosystem?

How to implement a Dictionary without using ConcurrentDictionary?

What is GVT used for?

What collections do you know in C#?

What is string interpolation and how does it allow variables to be used inside strings?

What is Dependency Injection used for in C# development?

What is synchronization context in C#?

What are the ref and out keywords in C#?

What are readonly access modifier fields used for?