network

network

1. lan [local area netwok]

   • hardware needed
     • wifi extender
     • ethernet cable
     • server
     • network interface card
     • router
   • devices that connect over a small geographical area
   • Advantages
     • it allows devices to communicate with other devices
   • Disadvantages
     • only covers limited data
   • ways to connect to wan
     • wifi
       • wireless connection
       • disadvantages
         • it is not as quick as ethernet
       • advantages
         • it is cheap and it is more secure
     • ethernet
       • wired connection
       • advantages
         • it gives you a better connection therefore , you wouldn't have a cable going accross the world
       • disadvantages
         • ethernet is a cable therefore it is not portable
   • ways to connect to lan
     • wifi
       • wireless connection
       • disadvantage
         • if a person has you wifi password then they can connect without you consent
       • advantage
         • its cheap
     • ethernet
       • wired connection
       • disadvantage
         • the cablei itself is quite expensive
       • advantage
         • quicker data transfer speed than wifi

2. Wan [wide area network]

   • networks connected over a large geographical area
   • Advantages
     • its used for global bussiness
   • Disadvantages
     • its quite expensive and you need a stronger firewall
   • hardware needed
     • modem
     • telephone line
     • satelite link