Network Mind Map

Network Mind Map

1. Disadvantages

   • The cost of networks
   • Security concerns
   • Hackers can access all of the files if it is on a network
   • Viruses can effect everything in the network
   • Its difficult to manage

2. Advantages

   • You can use the same username and password on every computer
   • User restrictions are easier to enable
   • Share files
   • Share resources
   • Install things on just one computer which makes it happen on all computers

3. WAN

   • Wide Area Network

4. LAN

   • Local Area Network

5. Topologies

   • Bus
     • the network consists of one cable that runs through the network to all devices
     • cheap to install
     • high chance of catastrophic failure, lots of collisions and slows down as more computers are added
   • Ring
     • Each computer receives a message and if it is not the intended recipient, it passes it on to the next computer
     • communication only goes in one direction with no central cable
     • Cheap to install and no collisions
     • High chance of catastrophic failure and its difficult to add another computer
   • Star
     • all computers are connected to a central switch
     • The switch directs the traffic to the appropriate computer
     • Its fast, easy to add new computers and a low chance of catastrophic failure
     • Expensive and failure of the switch will take down the whole network

6. Mesh Topology

   • Mesh topology is a type of networking where all workstations/devices cooperate to distribute data amongst each other
   • It manages high amounts of traffic and low chance of failure
   • The internet is a huge mesh topology

7. IP Addresses

   • An IP address is a unique value assigned to every computer on a network, used to identify it
   • Its a 32-bit binary
   • Internal and external are used because there are too many IP addresses