Networking.

Networking.

1. Different types of topologys.

   • Bus Network.
     • All the devices are connected on one cable.
       • Advantage.
         • Cheap and easy to install.
       • Disadvantage.
         • If one computer stops working, they all stop working.
   • Star Network.
     • All workstations are each workstation is connected by its own cable directly to the server.
       • Advantage.
         • If one computer stops working, the rest still work.
       • Disadvantage.
         • If the central devise stops working, they all stop working.
   • Ring Network.
     • All devices are connected together in the shape of a circle.
       • Advantage.
         • Can transfer data quickly.
       • Disadvantage.
         • If one device fails they all fail.

2. Network Types

   • LAN.
   • WAN.
   • Client.
   • Peer to Peer
   • WLAN
   • Intranet
   • Extranet

3. Network Policies

   • Disaster recovery
     • If the system fails there needs to be a back up to get the network up and running again as quickly as possible. Backing it up in deferent places in a remote place e.g cloud storage.
   • Failover and backups.
     • If there is a power cut, many networks have ups (uninterrupted power supplies) which are large batteries with enough charge to keep the network going long enough to shut it down correctly
       • If a hard drive fails, there is usually a backup which can take the strain. Networks are often backed at least daily and these back ups are stored off site or in a remote location
   • Acceptable use
     • Its important for the network to have an acceptable usage policy to provide users with guidelines about what they can and cant do using it.