-uses a server (a powerful computer with multi-user OS) to control all the clients on the network and grant or deny access to network resources e.g. internet, printer, files. The client makes requests, and displays the content requested (if granted)
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A client-server network has a central server with nodes connected to it. The server stores all the files and user data, and a user/client requests a file, and the server could grant or deny this request, depending on the user's restrictions. This also allows backups to be done all in one place, and a user's files can be accessed from any node connected to the network.
Peer-to-peer Networks
-all nodes on the network have equal status and can share data
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A peer-to-peer (P2P) network doesn't have a central server. This makes the network much cheaper and easier to maintain, so you also don't need a technician. In P2P nodes are connected to each other, and files are shared between the nodes. This results in less congestion, as there is no reliance on a central server. This also means that if a node breaks, the other nodes can still access their own files (just not the ones on that broken node). This contrasts with the client-server network, which is very reliant on the central server, so if that breaks then files can't be accessed by anyone. A work around for this is that you could have more than one server, so if one breaks then you still have another. Also, having a central server means backups can be done centrally, whereas in P2P backups are much harder to do, as you would need to do a backup on each device.
Networks
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