Please enable JavaScript.
Coggle requires JavaScript to display documents.
3.1.1 Network Resources - Evaluate the bus, star and ring network…
3.1.1 Network Resources - Evaluate the bus, star and ring network topologies
-
Bus Network Topology
Definition Each of the devices are arranged in a line and connected directly to the main communications cable, called a bus or backbone, along which signals are sent.
-
Data can be transmitted in both directions. At both ends are terminators used to reflect signals back.
-
Disadvantages
If there is a problem with the central cable, the entire network stops working
If there are a lot of workstations on the network, data can travel slowly
-
-
-
-
Ring Network Topology
Definition A ring network consists of a number of nodes connected together without the need for a fileserver. Each node is connected to two other adjacent nodes.
-
-
Advantages
-
Extra computers can be added easily with little effect on performance - although you have to shut down the network to be able to do this.
Disadvantages
-
Repeaters are required depending on the distance as messages may have to travel a large distance and signal can become weak and distorted.
-
Data must pass through every computer until it reaches its destination, This can make it slower than other network layouts.
Star Network Topology
Definition All the network devices connected to one central computer, which is often used as a file server. The central node is a computer that has separate connections to each of the other computers.
Advantages
Star networks are very reliable. If one connection fails, it does not affect other users.
-
-
-
Disadvantages
If the server crashes or stops working then nobody will be able to access their files or use the network.
-
-
-
-