networks

networks

1. advantages

   • saved work will transfer to any computer through a company,business or schools
     • its easy when set up
       • helpful
       • reliable

2. disavantages

   • not safe
   • expensive
   • hard to set up
   • if deletd on one compute deleted on all computers.

3. types of networks

   • local area network (LAN)
     • wide area network (WAN)
       • Storage area network (SAN)
   • personal area network
     • wireless local area network (WLAN)
       • campus area network (CAN)

4. topologies

   • bus topologies
     • advantages
       • cheap to install
       • disadvantages
         • high chance of catrosrofic faliure
           • low collisions
   • ring topology
     • advantages
       • cheap to install
       • no collisions (fast)
     • disadvantages
       • high chance of catostrophic faliure
       • difficult to expand
   • star topology
     • advantages
       • fast
       • easy to add new computers
       • low chance of catosrophic faliure
     • disavantages
       • expensive (needs alot of cables)
         • faliure of the switch will take down the network
   • ip adressess
     • unique identifier
       • assigned to buissness and houses
         • 0.0.0.0 to 255.255.255.255
           • 4 billion the internet has run out of room
             • ipv6
               • it allows just over 4 billion unique adresses
                 • it is now coming into use
                   • this allows almost 80 octillion unique ip addresses
               • beacuse the internet is so big it will be hard as the old computers you have to update them