1. A number of repeaters are used for Ring topology with large number of nodes, because if someone wants
to send some data to the last node in the ring topology with 100 nodes, then the data will have to pass
through 99 nodes to reach the 100th node. Hence to prevent data loss repeaters are used in the network.
2. The transmission is unidirectional, but it can be made bidirectional by having 2 connections between
each Network Node, it is called Dual Ring Topology.
3. In Dual Ring Topology, two ring networks are formed, and data flow is in opposite direction in them.
Also, if one ring fails, the second ring can act as a backup, to keep the network up.
4. Data is transferred in a sequential manner that is bit by bit. Data transmitted, has to pass through each
node of the network, till the destination node.
Advantages of Ring Topology
1. Transmitting network is not affected by high traffic or by adding more nodes, as only the nodes having
tokens can transmit data.
2. Cheap to install and expand
Disadvantages of Ring Topology
1. Troubleshooting is difficult in ring topology.
2. Adding or deleting the computers disturbs the network activity.
3. Failure of one computer disturbs the whole network.
3. STAR Topology
In this type of topology all the computers are connected to a single hub through a cable. This hub is the
central node and all others nodes are connected to the central node.
Features of Star Topology
1. Every node has its own dedicated connection to the hub.
2. Hub acts as a repeater for data flow.