networks mind map

networks mind map

1. advantages

   • shares files
     • So when you log in on a diffrent computer you still have all your files
   • share resources
     • so all the computers have the same resources
   • share logins
     • so you can login on any computer in the school

2. disadvantages

   • Malware
     • Is more vulnerable because if you down load some virus it will affect every computer that you log on to
   • It’s expensive
     • networks are expensive to maintain and set up
   • difficulty
     • you need expertise in computers to set up and maintain network

3. types of networks

   • WAN
     • wide area network
     • eg the internet, xbox live and psn
   • LAN
     • local area network
     • eg school network

4. topology

   • bus topology
     • disadvantages
       • slow because of collsions
       • breaking the cable ends the network
     • advantages
       • cheap
       • easy
   • ring topology
     • advantages
       • fast
       • cheap
     • disadvantages
       • high chance of catastrophic failure
       • difficult to expand
   • star topology
     • advantages
       • fast
       • does not break often
     • disadvantages
       • expensive
       • depends on switch

5. IP address

   • an ip is a unique value assign to every computer
   • it is a 36 bit binary value
   • there are 4 billion ip address
   • the last ip adress is 255.255.255.255
   • the 4’228’250’625 devices are able to connect
   • there is one ip address for the whole school
     • but there are internal ips for the school