🔄What is the client-server model?

Client sends request → Server sends response

Client👤

Requests service
Examples:

• Browser 🌐
• WhatsApp 💬
• ATM 🏧
• Email 📧

Server🖥️

Provides service
Types:

• Web server 🌍
• File server 📁
• Mail server 📧
• Database server 🗄️

Communication Steps📡

1️⃣ Request sent
2️⃣ Server processes
3️⃣ Response received

 Real-Life Examples🌍

Web browsing 🌐
WhatsApp messaging 💬
ATM transaction 🏧
Online shopping 🛒

 Client-Server vs Peer-to-Peer⚖️

Client-Server → Central server 🖥️
Peer-to-Peer → No central server 🔗

Importance ⭐

• Centralized management 🗄️
• Better security 🔐
• Easy backup 💾
• Scalable 📈

Key Points 📌

• Server always ON 🔌
• Client initiates communication
• Request-Response model 🔄

Interview Answer 🎓

Client-server is a network architecture where clients request services and servers respond with data or resources.