About Lesson
Star Topology:-
A Star network, every host is connected to a central connection point, like a hub or a Switch. The connection between a node and hub device is a point-to-point. The device takes a signal from any node and passes it to all other nodes in the network. It works as a server and it controls the entire function of the network. It is used to connect a computer through Coaxial cable.
Features of Star Topology:-
- Every node has its own dedicated connection to the hub.
- Hub acts as a repeater for data flow.
- Can be used with twisted pair, optical fiber or coaxial cable.
- The data signal is transmitted from the source computer to the destination computer via the hub or switch.
- The common protocols used in star topology are Ethernet, Token Ring, and Local Talk.
Advantages of Star Topology:-
- It is much easier to modify or add new computers to a star network without disturbing the rest of the network.
- Single computer failures do not necessarily bring down the whole star network.
- Easy to manage and maintain the network because each node has separate cable.
- It supports a high-speed data bandwidth of approximately 100 Mbps.
- Cost effective as it uses inexpensive coaxial cable.
Disadvantages of Star Topology:-
- If the central hub goes down, then all other connected nodes will not be able to communicate with each other.
- It requires more wires compared to the ring and bus topology because it is expensive to use.
- If the hub gets failed then all the connected nodes will not be able to communicate with each other.