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networking - Coggle Diagram

- - - - covers a small geographical area
      - the infrastructure is owned by a individual or small company's
    - - controlled by 3rd partys
      - covers a large geographical area
  - - - Provides the physical connection to a network for wireless devices it sends and receives radio signals.
    - - Connects LANS to the internet splits data into packets with the correct header and relevant data.
    - - Transfers data from one device to another works out the mac address and only sends data too who needs it.
    - - .Can be wired or wireless required by a device connected to the internet
  - - - a computer that provides a service to store files and distribute them
- - - - Used in software such as email clients and web browser encodes the data so it can be understood by the récipient formats the data and attaches a header depending on the protocol used either by smtp or https.
    - - -attaches the Ip address of the sender attaches the Ip address of the recipient
    - - Attaches the MAC address of the sender and recipient this allows the individual device that needs the data to be identified.
    - - Splits data into packets a sequence number is added (1,2,3,e.t.c of x) so that the packet can be reconstructed once received. this is also required for error checking fir lost packets. Happens at the router and uses TCP
  - - - hypertext transfer protocol
      - https safe version
    - - ftp file transfer protocol
      - TCP/IP
        
        transmission-control protocol/internet protocol
    - - post office protcol
      - internet message access protocol
      - simple mail protocol