in networking what connects every device to every other device
So, if one device sends a signal, all the other devices receive the signal, but only one particular device listens for it. A switch is like a hub in that every device on the network is connected to it. However, a switch does not rebroadcast signals to all other devices. A switch makes a direct link between the device that is transmitting and the device that is receiving.
Star Topology. Star Topology: In a star network devices are connected to a central computer, called a hub. Nodes communicate across the network by passing data through the hub. Main Advantage: In a star network, one malfunctioning node doesn't affect the rest of the network.
Traffic is not allowed to pass through the bridge unless its destination is on the other side. Bridges are used to join to network segments or to divide a busy network into two segments. Routers are devices that can connect several network segments (even segments that are not alike in type).