This is not necessarily true. Star topology is often the most affordable while still allowing some robustness, but in mission critical scenarios, often a mesh topology will make more sense. The different topologies exist not only because of evolution over time, but because different scenarios call for different configurations.
Scalability and reliabillty of star topology makes it the best, easy to remove or add a device.
star
Scalability and reliabillty of star topology makes it the best, easy to remove or add a device.
star
he most commonly used network topology is a hybrid topology called the Star Bus TopologyRead more: http://wiki.answers.com/What_is_network_topology_and_give_an_example_of_the_most_common_network_topology#ixzz1TrCMGlb6
Star topology.
star
Mesh Topology... though if you use a beefy-enough machine in the middle, a Star topology might work.
star topology
The most common LAN topology is that of a "star." In a star topology, each computer, or "node", is connected to a central hub. This is more reliable than a more classical "ring" topology, because a node failing will not bring down the entire network. A bus topology is arguably more reliable, but has poorer performance.
star topogy
The "star" topology is the most common.