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Network Architecture


Client Server Architecture


Client-Server architecture is a popular network based architecture. In this architecture, each computer acts as either server or client.

 

A centralised host computer that receives requests, process it and provides suitable response back is known as server.

Workstations that initiate the request are clients.

In client-server architecture, we have a centralized server which receives request from clients (another computers). On receiving the request, server process it, executes the required tasks and sends the response back to the client. In short we can say, service requests are made by clients while the service is provided by server.

 

client-server architecture by tutorialsinhand.com

 

In client server relationship, both the client and server carries out some data processing tasks at their end.

 

Examples of client-server architecture

  • Internet,
  • WWW,
  • Email,
  • Network Printers


Important components in client-server architecture

  • clients,
  • server(s),
  • network

Advantages of client-server network

There are several advantages that client-server architecture has to offer:

 

Resource Sharing

Client-Server architecture enhances resource sharing. Like a single resource (say printer) can be shared by multiple clients (computers) coming up with requests (printing requests). Server will manage these request and would let these request served based on FIFO or some other algorithm.

This ensures effective and maximum utilization of available resources in the network.

 

Easy Maintenance

As all the requests are served from the server so managing and maintaining resources becomes easy. Resources can be placed on server from where they can be requested by the clients easily. It’s not required to individually place the resources on every client.

Less Memory for client:

As we don't need all the resources to be installed or stored on the client machines so they can work with low memory. The resource that is required is requested from the server and supplied on demand.

 

Cost-effective for organization

This architecture helps reduce installation cost for the organization in long run.

 

Disadvantage of client-server network

There are several advantages that client-server architecture has to offer:

 

Propagation of viruses or malware

As we know the resource in client-server architecture is shared so in case a single file on the server contains virus then it is sure to impact all the system on the network that access that affected resource.

Proper check is required on all the resources that is placed on the server by network admin.

 

Servers can be bottlenecked

As number of clients can try to connect to a server simultanously so this can also result in servers to get bottlenecked thus impacting their speed and accuracy of service on certain occasions.



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