Back End

4.5

Back-end development refers to the server-side of a web or application that handles data processing, business logic, database interactions, and server management.

It’s the part of a website or app that users don’t see, but it powers everything they do.

Common languages used in back-end development include: JavaScript (Node.js) Python (Django, Flask) PHP Java (Spring Boot) C# (.NET Core) Ruby (Ruby on Rails) 🔌 Databases Used Relational: MySQL, PostgreSQL, SQL Server NoSQL: MongoDB, Firebase, CouchDB 📡 APIs and Communication Back-end services often expose APIs (Application Programming Interfaces) to allow the front end to retrieve and send data: RESTful APIs GraphQL JSON and XML formats.

Authentication & Authorization (Login systems, permissions) Data Management (CRUD operations: Create, Read, Update, Delete) Performance Optimization Security Practices (Encryption, validation, preventing attacks like SQL injection, XSS).

Java Full Stack Development workspace with computer screens showing code

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