C#

Do you use Entity Framework in your projects?

Where is the incoming request from the user processed on the server?

Under what conditions does using an index improve SQL query processing speed?

What technologies and tools were involved in creating your CRM system?

Can you explain what is meant by a method called on a specific instance of a class?

Explain the concept of synchronization context and its role in multithreaded programming.

What is the purpose of using window transactions in SQL and how do they differ from regular transactions?

Can variables or fields be declared in an interface?

Can you explain what a Set collection is in the context of Entity Framework?

What are the main differences between an interface and a class in object-oriented programming?

How do you determine the need for indexing in SQL queries?

What are the consequences of canceling an operation using CancellationToken?

What does the letter 'S' in the SOLID principles for object-oriented design stand for?

In what cases is a comparison of reference data types performed?

In what situations and stages of development is a controller usually created in the application architecture?

Junior — Middle

Andersen

Explain the difference between Semaphore and Mutex mechanisms in the context of resource management.

Describe how you have applied the features of Keycloak in your projects.

Explain what a string data type is and how it is used in programming.

What are the differences between the data structures Dictionary and HashSet in terms of their usage and internal implementation?

Where in tests is the behavior logic of objects implemented?