WEEK 4: Differences Between Client Server Models - M199205zn/Datacomm-CS3 GitHub Wiki
In networking, Client/Server models define how devices communicate and share resources. The two primary models are:
- Traditional Client/Server Model
- Peer-to-Peer (P2P) Model
- A centralized network where a dedicated server provides resources, services, and data to multiple clients.
- The server manages access, security, and data storage, while clients request services from it.
✅ Centralized management and control
✅ High security and reliability
✅ Clients depend on the server for data access
✅ Suitable for large organizations
- Web Servers: Websites like Google, Facebook, and Amazon use centralized servers to store and manage user data.
- Email Servers: Gmail, Outlook, and Yahoo Mail rely on dedicated mail servers to send and receive emails.
- Database Servers: Businesses use SQL databases like MySQL or PostgreSQL to store and manage customer information.
- Cloud Storage: Services like Google Drive and Dropbox store files on remote servers, allowing clients to access them from anywhere.
- A decentralized network where each device (peer) acts as both a client and a server.
- Peers communicate directly with each other without a central server.
✅ No central server—each node shares and retrieves data directly
✅ Lower cost and easier setup
✅ Less secure compared to client/server models
✅ Ideal for small networks and file-sharing applications
- File Sharing Networks: BitTorrent, Limewire, and eMule allow users to share files directly.
- Blockchain Networks: Cryptocurrencies like Bitcoin and Ethereum operate on a decentralized P2P network.
- LAN-Based Sharing: Small office/home networks where computers share files without a central server.
- VoIP Communication: Skype and Zoom use P2P connections for direct communication between users.
| Feature | Client/Server Model | Peer-to-Peer (P2P) Model |
|---|---|---|
| Architecture | Centralized | Decentralized |
| Server Dependency | Requires a dedicated server | No dedicated server needed |
| Scalability | Highly scalable | Limited scalability |
| Security | More secure (centralized control) | Less secure (open sharing) |
| Performance | More efficient for large networks | Can slow down with high traffic |
| Example Use Cases | Websites, cloud computing, databases | File sharing, blockchain, small home networks |
- Client/Server networks are structured, secure, and best for large businesses and internet-based applications.
- P2P networks are more flexible and cost-effective but lack centralized control, making them ideal for small-scale applications and file sharing.