Networks IP address

Networks IP address

1. LAN

   • LAN is when a network is connected only across a certain geographical area ( local area)

2. WAN

   • WAN is a network that is spread over a wide geographical area

3. Disadvantages of a network

   • expensive-extra hardware needed
     • more room for error-if something goes wrong it can affect every computer
       • difficult-it requires technical expertise
         • malware-viruses can spread

4. advantages of a network

   • Forces policies within companies
     • Easy to share things to multiple people
       • Requires a password and username therefore secure

5. Topologies

   • bus:
     • bus consists of a single cable so therefore is affordable
   • star:
     • All computers are connected to a central switch.
   • Topology-an arrangement of computers in a network.
     • ring:
       • comunication only goes in one direction
         • IP adresses
           • An IP Address is a unique identifier given to something.
             • Each address is different,things such as houses and work buildings have an IP address specific to that area.
               • An address must be unique because if they weren't people would be able to guess them too easily.