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Client Server Model in Networks

Client Server Model in Networks



Client Server Model in NetworksClient Server Model in Networks - Definition - The client-server model is a distributed communication Channel of networking processes between service requestors, clients and service providers. The client-server model is established within a network or the Internet. The client-server model is a core network concept which build functionality like email exchange, information exchanges, requested data exchanges and Web or database access. The protocol or set of rules which is backbone of the client-server model are:





  • Hypertext Transfer Protocol (HTTP)


  • Domain Name System (DNS)


  • Simple Mail Transfer Protocol (SMTP)


  • Telnet



Clients in Model >> Web browsers, chat applications, and email software etc.



Servers in Model >> Web, database, application, chat and email etc.



The client-server model differs from a peer-to-peer (P2P) model where communicating partners are client or server, each with equal power and responsibilities. The P2P model is also called decentralized networking while client-server model is centralized networking.



The client-server model explains before you how a server provides resources and services to one or more clients. Each of the servers provide resources to client devices, such as desktop computers, laptops, tablets, PCs, smartphones etc. Many Servers have a one-to-many relationship with clients, meaning a single server will provide resources to multiple clients at one time.



What are Advantages of Client Server Model?



Today Client-Server Networking Model is mostly used networking model. Below are the main advantages of Client Server Model in networking system.





  1. Client-Server Model exhibits many security features.


  2. Acquire full control over communication.


  3. A large number of computers can be connected in a network.





What are Disadvantages of Client Server Model?



Some of the Disadvantages of Client Server Model are given below.





  1. It is very expensive.


  2. It is very complex. Only trained technician can maintain and qualify the system.


  3. If the Server goes down, the whole network will go down and there will be no communications until the Server is up.



When a client requests a connection from a server, the server can either accept or reject the connection. If the connection is accepted, the server establishes and maintains a connection with the client over a specific protocol which are explain below. An email client may request an SMTP connection to a mail server in order to send a message. The SMTP application on the mail server will then request authentication from the client, such as the email address and password. If these credentials match an account on the mail server, the server will send the email to the intended recipient.



Examples: Online multiplayer gaming also uses the client-server model.



While Internet servers typically provide connections to multiple clients at a time, each physical machine holds and handle so much traffic. Therefore, popular online services divide clients across multiple physical servers, using a concept called distributed computing. In many cases, it does not matter which specific machine users are connected to, since the all servers provide the same service. Client Server Model in Networks

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