1.4 - Wired & Wireless Network

1.4 - Wired & Wireless Network

1. Bandwidth

   • Communicated data that is happening at any one time.

2. Ethernet

   • if it goes over 185m, it loses all signal.

3. Virtual Network

   • Configured so that only some devices can see each other.
   • Implemented using virtualisation methods.
   • Part of a LAN/WAN.

4. Peer to Peer networks

   • All devices can act as a server.
   • No additional software.
   • No server.
   • All computers have equal status.
   • Backup has to be done on each device.
   • Virus and firewall protection needs to be done on each device.
   • Suitable for low traffic.

5. Client Server networks

   • More suitable for high traffic.
   • Virus and firewall protection only needs to be on the central server.
   • Additional hardware is needed.
   • Relies on a central server.
   • Server stores user account details and files.
   • Can restrict what other devices can access/do.
   • They have to request access which is granted by server.
   • Processes requests from clients or workstations.
   • Fewer data collisions.

6. Fibre Optic

   • Travel through light so there is no interference.
   • Transmit data at a higher bandwidth.

7. LAN

   • Backbone connects wiring centres using fibre optic.
   • Small geographical area.
   • Owned only by user.
   • A school network.

8. WAN

   • Large geographical area.
   • User only owns part of infrastructure.
   • The internet.