C#

How to determine before the last element in a singly linked list?

Junior — Middle

СБЕР Тех

What are the protocols for data exchange between the server and the client?

What are the disadvantages of microservice architecture?

What is the concept of garbage collection in C#?

What are events in C#?

What is a garbage collector in C#?

Can you explain the mechanism of the IEnumerable interface and its application?

What is change tracking?

Why is it necessary to use an API between the database and the client application?

Which APIs can be called RESTful?

What data types in C# are value types, and which are reference types?

What advantages does LINQ provide in C#?.

Did you have a military ID?

Junior — Middle

OZON

Which APIs can be called RESTful?

When is a database query sent?

How does ORM optimize the generated SQL code in terms of performance?

Are all HTTP methods idempotent?

Is the DELETE operation idempotent?

Have you ever created test scenarios or automated checks for your code?

What is the difference between ref and out parameters, as well as boxing and unboxing concepts?