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2.2 NETWORK ARCHITECTURE - Coggle Diagram

- - - - Server
        
        Definition: A computer that serves information or other services to other computers in a network
        
        Types:
        
        Database server
        
        Stores and provides access to a database
        
        Network server
        
        Manages network traffic (activity)
        
        Print server
        
        Manages printers and documents being printed
        
        Web server
        
        Delivers requested web pages to your computer
        
        File server
        
        Stores and manages files
        
        Functions:
        
        Controls access to the hardware, software, and other resources on the network
        
        Provides a centralised storage area for programs, data, and information
      - Client
        
        Definition: A computer or device that requests and uses services or resources provided by a server
    - - Centralised - resources and data security are controlled through the server
      - Better management of files since files are stored in the server
      - Backup - All data is stored centrally as it is easy to backup
    - - Complex and costly to setup such as to purchase the server, network operating system and requires expert to maintain the network
      - When the server goes down, all the resources connected to it become unavailable to use
      - Cost and maintenance for client/server is more expensive than a peer-to-peer network
  - - - BitTorrent
      - LimeWire
      - Skype
      - SHAREit
    - - Home P2P network
      - Internet P2P network
    - - Easy and simple to setup only requires a hub or switch to connect all computers together
      - You can access any file on the computer as long as it is set to a shared folder
      - If one computer fails to work, all the other computers connected to it can continue to work
      - Does not require experts to maintain the network as each use takes care of their own machine
    - - Security in the P2P network is low and can be an issue. Virus, spyware, and malware can easily spread in the P2P network.
      - It does not run efficiently (tend to slow down) if you have many computers, it is best to use two to eight computers.
      - Data recovery or data backup can be difficult as each peer has their own back-up system