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NETWORK ARCHITECTURE & CLASSIFICATION - Coggle Diagram

- - - - one or more computers act as a server and the other computers on the network request services from the server
    - - What the client do ?
        
        A client makes a request for data that is stored on a server.
      - What the server do ?
        
        controls access to the hardware, software, and other resources on the network.
    - - Backup- All data is stored centrally
      - Centralized-resources and data security are controlled through the server
    - - When the server goes down all the computers
        connected to it become unavailable to use.
      - More expensive than a peer-to-peer network you
        have to pay for the start-up cost
  - - - Each computer, called a peer, has equal
        responsibilities and capabilities, sharing hardware (such as a printer), data, or
        information with other
        computers and mobile
        devices
    - - peer-to-peer network
        is a simple,
        inexpensive network
        that typically connects
        fewer than 10
        computers.
    - - Easy and simple to set up only requiring a hub or a
        switch to connect all computers together
      - You can access any file on the computer as-long as it
        is set to a shared folder
    - - Security is not good other than setting passwords for
        files that you don't want people to access.
      - It does not run efficient if you have many computers, it is best to used two to eight computers.
  - - - client-server
        
        Clients on the network (company employees) access the customer database on the server.
      - Peer-to-Peer
        
        p2p network is a simple, inexpensive network that typically connects fewer than 10 computers.
    - - client-server
        
        The server controls security of the
        network
      - Peer-to-Peer
        
        No central control over security.
- - - - Access server
      - Modems
      - router
    - - Security breaches
        
        the bigger the WAN, the more worth it is setup.
      - High configuration process
        
        Encryption of secure data such as financial transactions is necessary because it is even easier to capture data.
    - - High bandwidth
        
        WANs cover a large geographical area of more than 1000km.
      - sharing of software and resources
        
        share software applications and other resources with other users on the intrnet.
    - - 1.A network of bank cash dispenser
      - network of corporate offices
    - - WANs generally connect devices that are separated by a broader geographical area than can be served by a LAN.
    - - covers a
        large geographic area such as city
  - - - It is larger than a LAN in a single building but not large enough to be considered a WAN. The size usually ranges from 5 kilometers to 50 km.
  - - - broadband connection
      - router
      - modem
    - - a virus can spread easily.
      - As data is shared there is a greater need for security.
    - - Hardware and software can be shared.
      - All the users work can be stored in a central place.
    - - College Computer Lab
        Network
    - - It covers limited
        geographically area