Networks

Networks

1. Advantages

2. Disadvantages

3. Types of Networks

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

4. Topologies

   • bus
     • advantages
       • less cables
       • easy to setup
       • easy communications between devices
       • cheap to install
   • ring
     • advantage
       • cheap to install
       • no collisions
     • disadvantage
       • if any cable breaks, it all does
       • difficult to add new computers
   • star
     • Advantages
       • low chance of failure
       • no colllisions
       • fast
     • Disadvantage
       • expensive
       • depends on a switch
   • mesh
     • advantages
       • quickly sends and recieves messages
       • lots of info sent at once
     • disadvantages
       • impractical set up
       • messages always send
       • large parts of network unused

5. IP address

   • definition; a unique value assigned to every network , used to identify it and used to get the message to this person
   • our school IP address is 86.188.242.210

6. packets

   • the small chunks that the info is separated into and then is reassembled on the other side

7. routing

   • there are always multiple different routes that the info can go, but it always goes the way with the lowest cost

8. cost

   • is a value assigned to each computer dependant on speed, lower the value the quicker it is