C#

What is the difference between async void methods and async Task methods?

How to embed your middleware? Where to register it? In what sequence is it executed?

What is a pure function?

What concurrent collections do you know and what are they used for?

What is Middleware and what is it used for?

How interested are you in the described field and position?

What is the purpose of HAVING?

What are transaction isolation levels?

What is ValueTask and when should it be used?

How does a queue structurally differ from a stack?

Can the lock operator be used to block access in asynchronous code?

Tell me about the Dispose pattern (IDisposable).

What is a higher-order function? Provide an example of a JavaScript function that accepts or returns a function.

Working with databases — Entity Framework, Dapper, index building?.

What is the difference between RabbitMQ and Kafka?

What are the advantages of NoSQL databases over relational ones? What is the CAP theorem?

How do HTTP and TCP relate? How do UDP and TCP relate?

What is try/catch/finally and what are they used for?

Why can't you write async code inside a lock?

Is it necessary to override GetHashCode and Equals together? Can you override only one of them?