Client-Server Architecture - Everything You Should Know

A network application known as client-server architecture, sometimes known as a client-server model, divides workloads and tasks between clients and servers housed on the same system or connected via a computer network. Client-server architecture often consists of workstations, PCs, or other devices belonging to many users that are linked to a central server over the Internet or another network. When the server receives a request for data from the client, it complies and transmits the requested data packets back to the user. A client sends a request using a network-capable device, the server accepts and processes the request, and then it provides the client with the response. This is an overview of how a client-server network operates.

Components of Client Server Architecture

Client-server architecture requires three components to function. Workstations, servers, and networking devices comprise the three components. Let us go over them in depth for a better understanding.

WORKSTATIONS − Client computers are another term for workstations. Workstations act as servers' subordinates, sending requests to access shared files and databases. As a primary repository of files, programs, databases, and management policies, a server requests information from workstations and performs several functions. Workstations are governed by guidelines set by the server.

SERVERS − Servers are defined as high-performance computing devices that serve as centralized storage locations for network files, programs, databases, and policies. Servers have ample storage space and memory to handle multiple requests coming in from various workstations at the same time. In a client-server architecture, servers can simultaneously serve as mail servers, database servers, file servers, and domain controllers.

NETWORKING DEVICES − In a client-server design, networking devices function as a method for connecting workstations and servers. Numerous network operations square measure applied to employ a type of networking device. A hub, as an example, is employed to link a server to various workstations. Information between 2 devices is often effectively transferred via repeaters. To segregate network segmentation, bridges square measure used.

Working of the client-server network

Users must input the website URL or file when dealing with servers as clients. The DNS server then returns the IP address of the web server in response to the browser's request for the DNS server to seek up the web server's address. The server then returns the website's files once the browser makes an HTTP request to the WEB Server's IP. The webpage is shown when the browser renders the files.

Types of Client-Server Architecture

Multiple levels of functionality are present in a client-server architecture. More information will improve our understanding.

1-TIER Architecture

In this subclass of client-server design, all choices, configuration options, and selling logic are contained on a single device. While 1-tier design provides a wide range of services, managing such an Associate in Nursing design might take time and effort. The volatility of information is typical of fault. It frequently results in the duplication of effort. The display, business, and information layers are just a few components that make up the 1-tier design. These layers incorporate the usage of a unique set of computer codes. In native systems or on shared media, the knowledge of this layer is usually unbroken.

2- Tier Architecture

The best setting is formed by this design. This style helps maintain information and business logic on the client's or server's aspect. It happens with the shopper's computer program and the server's information. Due to the lack of intermediaries between client and server in the 2-tier architecture, it is faster than the 1-tier system. It's regularly employed to ensure client clarity. One of the famous examples of a 2-tier design is the online ticket reservation process.

3- Tier Architecture

Contrary to 2-tier architecture, which has no middleware, 3-tier client-server design places middleware between the client and the server. The middleware will first acknowledge a request from the client to retrieve specific data from the server. Then it will be delivered to the server for additional processing. The identical procedure will be used when the server replies to the client. The three main layers that make up the 3-tier architecture framework are the display layer, application layer, and database tier. All three layers are governed at various ends. The middleware and server are in charge of the application layer and database tier, respectively, while the client's device is in order of the presentation layer. Since it includes a third layer that offers data control, the three-tier architecture is more secure, has an invisible database structure, and ensures data integrity.


Multi-tier design and N-tier design are similar terms. This variety of design is the scaled-down version of the opposite 3. Every performance, show, application process, and information management functionality is often placed in this style as a separate layer.


The Client-Server architecture is affected if the primary server fails. Because of the cost of sophisticated hardware and software tools, it is expensive to operate. This architecture needs specific OSs for networking. Traffic congestion can be brought on by an excessive number of concurrent users. Highly technological equipment is required for network maintenance, such as server machines.


The centralized network has total control over the activities and operations. Centralized control is possible overall networked devices. Users can access any file stored in the central storage at any time. Client-Server architecture offers a user-friendly interface, a simple method for finding files, and a management system for classifying files. It is simple to share resources between different platforms.

The peer-to-peer architecture, which is an alternative to the client-server system, is different.


The Client-server architecture helps us to communicate data with other computers, and devices, organizations. A networking model includes client-server architecture that enables multi-user updates via a graphical user interface to a shared database. Large and small businesses leverage networking to grow and digitize their operations, advertise their goods, and better understand news and events specific to their sectors.