Node.js

Can you explain what interfaces mean in TypeScript?

What are the existing types of transaction isolation levels in database management systems?

Explain the differences between an inner join and an outer join in SQL.

Is there a risk of a short-term delay in the operation of a NoSQL database?

Could you explain the purpose of a primary foreign key in a database?

How can the execution of asynchronous tasks be controlled in software systems?

Can you explain what is meant by 'cluster' in the context of information technology?.

Какие цели и направления в развитии своих технических навыков вы планируете достигнуть в ближайшем будущем?

Junior — Middle

СБЕР

Can you explain the purpose and operation of PGBalancer in PostgreSQL?

Middle

СБЕР

How do you update and expand your knowledge of various programming languages?

Have you used the Passport.js library for authentication in Node.js projects?

Can you name and explain the main asynchronous operations or functions used in Node.js?

Can you list the main types of data streams?

What are the lifecycle stages of a class component and how to implement them?

Can you give an example of when a closure is used in JavaScript to store data or create private methods?

Have you participated in the development of a small project using microservice architecture as a backend developer?

How do you plan your work time and task priorities?

Explain the principle of optimistic locking and how it differs from pessimistic locking.

What information does the browser store in cache by default?

How to distinguish between method overloading and method overriding in object-oriented programming?