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Star Topology

A star topology consists of a central connection hub to which devices are connected with UTP (Unshielded Twisted Pair) Ethernet. Contrary to the bus topology, a star topology utilizes a point-to-point connection to connect each node to the central hub. The hub acts as a signal booster as well, and all the data traffic that transverses the network passes through this hub.
The entire network is dependent upon the central hub in a star topology, so if the entire network is not working, it means that there is problem in the hub. This makes it easy to troubleshoot the network because of the only one point for error correction. As all the computers in star topology are independent to each other and dependent only on the central hub, network failure or other network problems are less likely to happen. The privacy of each of the computers is also maintained in this topology.
In star topology, new devices and nodes can be easily added and by just extending a cable from the hub.

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Advantages of star topology:
  • A star topology is simple in functionality and easy to manage.
  • If a problem occurs in the network, it can be easily isolated and cleared.
  • It is very easy to expand the star topology because of its simple format.

Disadvantages of star topology:
  • The entire network of the star topology is completely dependent on the hub. If the hub fails, the whole network fails.
  • Network connection may slow down when the number of nodes increases or the cable lengthens.
  • Star topology needs more cable length than other topologies.
  • It is more expensive compared to bus topology.

star topology
Star Topology

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1 Response to Star Topology

September 10, 2013 at 9:17 AM

hi..Im student from Informatics engineering, this article is very informative, thanks for sharing :)

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