intro Flashcards

(18 cards)

1
Q

Qu’est-ce qu’un navigateur dans une application web ?

A

It’s the user interface. It shows the web page and runs JavaScript, HTML, CSS.

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2
Q

À quoi sert le DNS ?

A

It finds the IP address for a domain name.

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3
Q

Rôle d’un équilibreur de charge ?

A

It shares the traffic between many servers.

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4
Q

Qu’est-ce qu’un pare-feu (firewall) ?

A

It blocks bad traffic and protects the system.

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5
Q

C’est quoi un serveur d’application ?

A

It runs the backend code (business logic).

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6
Q

Pourquoi utiliser un cache ?

A

It saves frequent data to answer faster.

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7
Q

À quoi sert le CDN ?

A

It sends static files (images, CSS) close to the user.

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8
Q

C’est quoi un microservice ?

A

A small service that does one specific job.

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9
Q

Rôle d’une API Gateway ?

A

One entry point for all APIs.

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10
Q

Qu’est-ce qu’un file d’attente des tâches ?

A

It’s for long tasks that don’t need to finish now (async).

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11
Q

Pourquoi faire des logs et monitoring ?

A

To check what happens in the system.

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12
Q

Définir une API REST ?

A

It’s an API that uses HTTP methods (GET, POST) with JSON.

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13
Q

Qu’est-ce qu’un WebSocket ?

A

It’s for real-time communication (like chat).

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14
Q

C’est quoi une base de données SQL ?

A

It stores data in tables with rows and columns.

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15
Q

Et une base de données NoSQL ?

A

It stores data in flexible ways (JSON, graphs, etc.).

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16
Q

À quoi sert Docker ?

A

It’s for packaging apps in containers.

17
Q

Rôle de Kubernetes ?

A

It manages many containers and scales them.

18
Q

Qu’est-ce que le SDLC ?

A

It’s the Software Development Life Cycle: plan, code, test, deploy, maintain.