Java

Which metric is most relevant for evaluating improvements after optimizing a slow query?

Can you tell about your experience of implementing and using Quarkus in previous projects?

Is it mandatory to use a try-catch block if the called method declares throws?

Do you consider the potential load and performance when developing a specific piece of code?

What is symmetry?

Have you received tasks from the team leader to perform?

Junior — Middle

СБЕР

How was your application process and internship selection conducted?

Can TCP protocol be considered blocking in the context of synchronous data transfer?

How to distinguish HTTP methods GET, POST, PUT, PATCH, and DELETE in the context of REST API?

What protocol is used during data exchange in REST API?

When using collections, in which cases is iteration faster: in ArrayList or in LinkedList?

Junior — Middle

IT One

Can you name the main modules of the Spring framework that you use or know?

What are the main principles of service design to minimize data or resource loss?

Junior — Middle

ОТП Банк

What methods of asynchronous data processing are available in Spring Framework?

What is the temporal complexity of obtaining the last element in a doubly linked list?

How did the team interact and discuss tasks during the work process?

At the application startup phase, what will be initialized first: XML configuration, Java code for configuration, or the @Configuration annotation?

Explain what the @Transactional annotation does in the context of transaction management in Java applications?

Junior — Middle

ОТП Банк

What is the function of application servers if servlet containers exist?

What sorting and filtering methods of data with SQL are you familiar with?