C#

Provide an example of implementing the 'Builder' design pattern in C#.

What is IQueryable in the context of C#?

Are there any restrictions on data types when using keys?

Why are non-relational databases needed?

What is the difference between executing an asynchronous function and using the await operator to wait for the result?

What is connectedness and connectivity in the context of C# programming?

Have you used transaction management mechanisms in SQL databases in your projects?

What is the main purpose of using hash tables in programming?

Is it possible to restrict the types that a user will pass through a template in C#?

What is the difference between static and non-static classes?

What are the main differences between value types and reference types in .NET?

Middle

Selecty

What are the advantages of using the 'using' block in C#?

В чем разница между типами string и StringBuilder в C#?

What is the main purpose of the Outbox pattern in system architecture?

How does the asynchronous method work in C#?

How is inheritance implemented in .NET?

What is the purpose of an interface and an abstract class, and what are the differences?

Senior

СБЕР

What is multithreading, what tasks does it solve, and what synchronization primitives do you know? How does SemaphoreSlim differ from Semaphore and what is a Mutex?

Can you name the most common index types used in database management systems?

How does simultaneous access of multiple threads to shared variables in an application affect it?