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WWW, Internet (Chapter-6) M1-R5.1/CCC
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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.
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