Client-Server Architecture

1. Introduction

Client-Server Architecture is a model that divides tasks or workloads between service providers (servers) and service requesters (clients). This architecture underpins most networked applications, allowing for efficient resource management and scalability.

2. Key Concepts

Client: A device or application that requests services or resources from a server.
Server: A device or application that provides services or resources to clients.
Network: The communication medium that connects clients and servers.
Protocol: A set of rules that defines how data is transmitted over the network.

3. Types of Client-Server Architecture

Single-Tier Architecture
Two-Tier Architecture
Three-Tier Architecture
N-Tier Architecture

4. Step-by-Step Processes


graph TD;
    A[Client] -->|Request| B[Server]
    B -->|Response| A

1. The client sends a request to the server.

2. The server processes the request.

3. The server sends a response back to the client.

5. Best Practices

To ensure optimal performance and security in client-server architecture, consider the following best practices:

Use secure protocols (e.g., HTTPS).
Implement load balancing to distribute requests evenly.
Regularly update and patch server software.
Monitor performance and resource usage.
Design for scalability from the outset.

6. FAQ

What is the main advantage of client-server architecture?

The main advantage is the separation of concerns, which allows for better resource management, scalability, and easier maintenance.

Can a client be a server?

Yes, in some architectures, a client can also function as a server, allowing it to provide resources to other clients.

What protocols are commonly used in client-server communication?

Common protocols include HTTP, FTP, and TCP/IP.