Bus
bus topology
Such topology is called star.
Star Topology WAN
A star topology; a network topology in which endpoints on a network are connected to a common central device by point-to-point links.
star topology
It is called a Star topology
point-to-point
The three most commonly used wide area network (WAN) topologies are point-to-point, hub-and-spoke, and mesh. In a point-to-point topology, a direct connection is established between two locations, providing a simple and efficient link. The hub-and-spoke model connects multiple remote sites to a central hub, facilitating easier management and data flow. Mesh topology involves interconnecting multiple nodes directly, allowing for redundancy and resilience, as each node can communicate with multiple others.
A star topology is a type of mathematical topology. Mathematical topology is essentially geometry without concern for distance. It asks questions such as for a given shape, (in the abstract sense) "what connects to what," "is it possible to reach point x from point y without passing through point z," and "are these two points connected at all?" A star topology is a type of topology where all the points (for example, computers in a computer network) are connected to a central point, but not directly to each other. Go to the following address to see several types of network topologies, including a star topology. http://scilnet.fortlewis.edu/tech/Network/Topologies.htm
Star
Star Topology
In a star topology only the failed system would have a problem, unless the device was the network connectivity device (on a LAN).In a WAN, if the building was connected through the central building and the central building had a problem then all buildings would be affected. If it isn't the central connection point then only the building with the problem would be affected.