Java

What methods can be used to ensure interaction between microservices in architecture?

Consider the possibility of using a linked list to add an element at the beginning of the list. In what cases is this justified?

Junior — Middle

СБЕР

What ensures the absence of conflicts between consumer groups when processing a single message in a message consumption system?

Middle — Middle+

СБЕР

Describe the tools and technologies used in your last project.

What needs to be done to prevent a program from crashing if a specific Bean is missing in the Spring context?

How do B-trees and hash indexes differ in the context of data organization and their search?

Junior — Middle

Т-Банк

Can you name classes declared with the final modifier in the standard JDK library?

What was the longest duration of your last project?

What is the main task of the Git version control system and why is it used in the development process?

What mechanisms can be used for secure management of user sessions with JWT, including the ability for users to terminate their active sessions?

What is the role of a foreign key in a database and why is it important?

Junior — Middle

Т-Банк

What design pattern would you apply to adapt the behavior of an object depending on the time of day?

Junior — Middle

СБЕР

How does ForkJoinPool differ from FixedThreadPool in thread management?

How can it be determined whether an Optional object contains a value?

What is the purpose of weak references in programming?

Junior — Middle

Т-Банк

Can you explain what the reactive web framework WebFlux is and what are its main advantages?

Junior — Middle

Aston

Tell us about your experience using database migration tools like Flyway.

Explain the concept of dynamic binding in object-oriented programming.

Which annotation is used to exclude a DTO field from automatic object mapping?

What is the difference between @Controller and @RestController annotations in Spring?

Junior — Middle

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