Networks

Networks

1. types of topology

   • bus
     • when all the computers connects at one big line
   • ring
     • when all the computers are connected in a ring to one computer
   • star
     • when all the computers are connected at one point

2. LAN/WAN

   • WAN: Wide area network
   • LAN: Local Area Network

3. disadvantages of a network

   • expensive: Wiring and finding the boxes is probably very expensive to buy and also to find the correct equipment
   • Hacking: If someone knows your password to your computer login then they can hack and steal files from you
   • Difficult: you will need qualifications of finding the correct stuff to connect to.
   • Viruses: If a virus is on one computer, it will be others since its connected to all the computers.

4. advantages of network

   • you can log in any computer and it would work with all your files

5. advantages of topology

   • ring
     • one way6 system
     • cheap
   • bus
     • cheap
     • easy to dd compurters
   • star
     • no datat leaks
     • no failures other than the switch
     • easy to add computers
     • a lot faster

6. disadvantages of topology

   • bus
     • catastrophic failure
     • data collisions
   • star
     • failure of switch means all computers will be also off
     • expensive
   • ring
     • hard to add computers
     • catastrphoric failures
     • data leaks

7. IP adress

   • there are 4 billion possible IP adresses
   • everyone has their own unique adress
   • bussienses and homes can have their own min i ip adresses from their network