Only a Mesh will allow every node to continue to work on a network if one cable does down. In a Star topology, however, only the computer the cable was connected to would lose contact with the network.
Yes...depending on the type of topology.
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One of the most popular topologies for Ethernet LANs is the star and extended star topology. It is easy to setup, it's relatively cheap, and it creates more redundancy than the Bus Topology. The Star Topology works by connecting each node to a central device. This central connection allows us to have a fully functioning network even when other devices fail. The only real threat to this topology is that if the central device goes down, so does the entire network. The Extended Star Topology is a bit more advanced. Instead of connecting all devices to a central unit, we have sub-central devices added to the mix. This allows more functionality for organization and subnetting- yet also creates more points of failure. In many cases it is impractical to use a Star Topology since networks can span an entire building. In this case, the Extended Star Topology is all but necessary to prevent degraded signals. Whereas the Star Topology is better suited for small networks, the Extended Star Topology is generally better for the larger ones.
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An old topology called Token Ring
Topology refers to the physical method of wiring the devices to each other, what kind of connection devices are used, etc.
A star topology has a central hub with other devices each connected to the hub but not to each other - for one device to communicate to another, they have to use the hub. With a bus topology all the devices are connected to the same bus - there is no hub. Each topology has advantages and disadvantages; the speed of a star network is limited by the hub; a telephone exchange is an example of a star network and there is a built-in limit to the number of devices that can be connected and there's no way to increase it other than to replace the hub with a bigger one. However, the devices (telephones in our example) can be dumb - all the intelligence is in the hub; it manages the calls and importantly, for commercial exchanges, calculates the bills. For bus networks, devices have to be smarter but can do much more as they can grab the whole bus.
Topology is the actual layout of the network, for instance, where the routers and other devices are located. That would be the networks topology.
The topology you're describing is known as a star topology. In a star topology, all network devices are connected to a central hub or switch, which acts as the main point of communication. If this central point fails, the entire network becomes inoperable, as no devices can communicate with each other. This design is often used for its simplicity and ease of troubleshooting, but it does create a single point of failure.
In a bus topology, all devices are connected to a single central cable, or bus. If this wire fails, all devices downstream of the break lose their connection to the network, resulting in a communication failure for those devices. However, devices upstream of the failure can still communicate with each other. This vulnerability makes bus topologies less reliable compared to other network topologies like star or ring.
The arrangement of computers on a network is called topology. It describes how the individual computers are connected to each other and to the network.examples of topology are Star topology, ring topology, mesh topology, bus topology.
Connections between devices Devices