chapter 2- part2

Question 1

Qu’est-ce qu’une application Stateless?

Answer 1

A stateless app doesn’t save any data about you between requests. Each request is like a new one—nothing is saved. (Ex: REST API)

Question 2

C’est quoi une application Stateful?

Answer 2

A stateful app remembers you. It saves info like your cart, your login… (Ex: session, shopping cart)

Question 3

Pourquoi préférer Stateless pour les APIs?

Answer 3

Because it’s simpler, faster, more scalable. Each request is independent!

Question 4

Qu’est-ce que la programmation orientée objet (OOP)?

Answer 4

It’s about using objects and classes—like characters in a game, each has its own data and actions.

Question 5

Qu’est-ce que la programmation fonctionnelle?

Answer 5

It’s like math functions: no side effects, pure, simple functions that just take input and give output.

Question 6

Qu’est-ce que l’asynchrone?

Answer 6

It’s doing multiple things at the same time—like sending emails and serving pages while waiting for a big task to finish.

Question 7

C’est quoi la gestion des erreurs?

Answer 7

It’s catching and handling errors (like 404, 500) to avoid crashes and give good responses.

Question 8

C’est quoi le monitoring?

Answer 8

It’s tracking your app’s health—checking logs, errors, performance, and alerts when stuff breaks.

Question 9

Donne un exemple d’outils de monitoring.

Answer 9

Tools like Sentry, New Relic, Prometheus, or ELK.