Networks

Networks

1. Types of Networks

   • LAN- Local Area Network
     • Advantages
       • You can save files and get them on other devices on the same network
       • You can share resourses such as printers or the wifi
       • Can use the same username and password on each device
       • share logins
       • Share websites
     • Disadvantages
       • Can get expensive
       • A lot could go wrong
       • Need experienced people to set it up
   • WAN- Wide Area Netork
     • Advantages
       • Share the same usernames and passwords for your account
       • share websites
     • Disadvantages
       • If one computer gets hacked then it is easy for the hacker to get to the other computers on the network
       • Could take a long time to set up

2. Topologies

   • Bus
     • Advantages
       • Cheap to install
     • Disadvantages
       • High chance of catastrophic failture
       • lots of collisions
       • slows down as more computers are added
   • Ring
     • Advantages
       • Cheap to install
       • No collisions
     • Disadvantages
       • High chance of catastrophic failture
       • Difficult to expand
   • Star
     • Advantages
       • Low chance of failture
       • No collisions
     • Disadvantages
       • Expensive
       • Depends on a switch

3. Internet

   • Mesh Topology
     • Where the Network is connected to at least one other network so it can take more than one rout
   • Routing
     • Where the shortest rout i calculated as a "cost".
   • Packets
     • Where all data on the internet is in small chunks