Node.js

What affects the performance of a Node.js application?

What is client-side rendering (CSR) and server-side rendering (SSR)? What is the main difference?

Can you explain what a data array structure is?

What is rate limit and how to bypass it?

Do you have experience working with PostgreSQL database management system?

What are the purposes of indexes in PostgreSQL?

What is HAVING and how does it differ from WHERE?

How to open a page in a new window when clicking on a link?

What tests have you written on the backend? What libraries did you use?

// [DATABASE] Design a database for users and their electronic wallets. // A user can own multiple electronic wallets in different currencies, but cannot own two wallets in the same currency. // Possible currencies: USD/EUR/RUB. The wallet should contain the current balance; // Currencies should have an additional name in Russian.

[name] asked: Do you know Vinci's competitors?

Do you prefer direct use of SQL queries or working with ORM for database interaction?

What is the virtual DOM in React?

How did you handle a situation where the client's requirements changed significantly during development?

What about your Italian language level? Are you studying it?

What are string locks and why are they needed?

What tables and entities are needed in the database to ensure the system is maintainable and auditable?

What can be included in a contextual window besides user messages? Why can a new empty chat be filled up to 15%?

[name] asked: Did you manage to learn what Vinci does?

What are transactions and the properties of ACID?