Java

What is the purpose of a Consumer Group in Apache Kafka?

Junior — Middle

ООО АнтараIfellowAston

What other thread synchronization mechanisms in Java do you know, apart from wait and notify from java.util.concurrent?

Is message order preservation ensured when using Kafka?

How to ensure the sequence of receiving Consumer messages according to their sending in Kafka?

What strategies for Bean implementation exist in Spring and how to determine the most suitable in a specific situation?

Can you explain what the term 'atomic variable' means in programming?

Junior — Middle

ООО АнтараAstonООО Динамика+1

What specific behavior can occur in a regular binary tree that cannot be observed in a red-black tree structure?

What happens when calling a method with the @Transactional annotation inside a method that is not annotated with it in Spring?

What is the purpose of the Callable interface in programming?

Junior — Middle

AstonООО Антара

What task does the open-in-view setting in Spring Boot solve and why is it needed?

How do the Callable and Future interfaces in Java interact for asynchronous operations?

What is the main task of a load balancer and why is it used in distributed systems?

Can you give an example of a situation where using an atomic variable is justified and necessary for correct operation?

How is the operation of inserting an element into the central part of a doubly linked list evaluated in terms of complexity?

Junior — Middle

СБЕР БизнесProoftechОТП Банк+5

What is the role of the Future class in Java and what is it used for?

Can you explain what the CallableStatement interface is and in what cases it is used in working with databases?

Can you explain what a ForkJoin thread pool is and how it works?

Junior — Middle

AstonООО АнтараОТП Банк

Can you explain the principle of how ForkJoinPool in Java works and how it manages tasks for efficient parallel processing?

Can you explain how the memory model works in Java and what are its main principles?

Junior — Middle

EAGARТ-БанкООО Антара+1

Have you ever dealt with the N+1 problem in your projects?