C#

Why override the GetHashCode and Equals methods in a .NET class?

Junior — Middle

OZON

What types of data binding exist in C# and in which cases should they be used?

How is a many-to-many relationship implemented between tables in a database?

A colleague's task has come to your Code Review What problems do you see in the code?

What is the role of the AddAuthentication method in the user authentication process?

Explain what stored procedures are in database management systems and how they are used.

Tell about a specific situation from your practice that was particularly significant or instructive for you.

Can you show an example of using LINQ to perform queries on a collection?

How do the concepts of asynchronous programming and multithreading differ in software development?

How is exception handling implemented in the program?

How is the lifespan of an object determined after its registration in the dependency injection container?

Junior — Middle

OZON

Why is it important to distinguish objects by their processing or access time?

What is the JOIN operator in SQL?

What database have you worked with and how did you interact with it?

What are the memory volume limitations of the stack in software systems?

What is the role of using meaningful data types in programming?

Junior — Middle

OZON

In array A, there are prices for N items. There are K coupons that reduce the item's price by X. If t coupons are applied to an item with price a, its final cost will be max(a - t*X, 0). Return the minimum amount of money needed to buy all items. A = 8, 3, 10, 5, 13 K = 4 X = 7 result=12 --- Given an array a of n positive integers, are there three distinct indices i, j, k such that the sum a[i]+a[j]+a[k] ends with the digit m? For example, for m = 3 solve([20, 22, 19, 84]) => true // 20 + 84 + 19 = 123 solve([1,2,3]) => false

What is the difference between a destructor and a Finalize method in resource management of an object?

Can you explain what a task scheduler in an operating system is?

Junior — Middle

OZON

Explain what the 'protected' access modifier means in a programming language and how it is used in classes.