In a multipoint topology the hub can send to one or more systems based on an address. Frame Relay is the most common technology to implement this scheme, and it is typically used as a WAN technology. All the remote connection points are connected to a single Frame Relay switch or router port, and communication between sites is managed by that central point. In hub and spoke, all spokes or only one spoke hears a given transmission. In point to multipoint, any number of remote stations can be accessed.
Bus topology
Bus Topology
Sure, the machines have to be connected somehow. A star topology is quite common.
Video Bridge
It consists of a number of hubs that form geographical cells for connections. Users and devices can roam from cell to cell in the network. It uses point-to-point and multipoint connections.
A cellular topology consists of multiple small geographic areas, or cells, each with its own base station to handle communication. Cells are interconnected to form a larger network. This topology allows for efficient use of resources, better coverage, and reduced interference.
It is multipoint but it leases the capacity of the line specially. So in a sense it behaves like a point to point but a multipoint.
Video Bridge is required. (Source: Network+ Guide to Networks, page 548 - MCU)
Multipoint competition explores the implications of a situation in which diversified companies compete against each other in several markets.
Ring topology is the passive topology in computer networks
Topology
1.bus topology, 2.ring topology, 3.mesh topology, 4.star topology, 5.hybrid topology