P2 Explain the impact of network topology communication and bandwidth | Course Hero

systems and nodes are connected and communicate with each other is determined by

topology of the network. Topology could be physical or logical. Physical Topology is the

physical layout of nodes, workstations and cables in the network; while logical topology is

the way information flows between different components.

Two basic categories of network topologies



Physical topology



Logical topology

Both physical and logical network topologies can be broadly classified into four basic models.

BUS Topology

Bus networks use a common backbone to connect all devices. A single cable, the backbone functions as a

shared communication medium that devices attach or tap into with an interface connector. A device

wanting to communicate with another device on the network sends a broadcast message onto the wire

that all other devices see, but only the intended recipient actually accepts and processes the message.

However, the low cost of implementing the technology is offset by the high cost of managing the network.

Additionally, since only one cable is utilized, it can be the single point of failure. If the network cable is ter-

minated on both ends and when without termination data transfer stop and when cable breaks, the entire

network will be down.

Features of Bus Topology :



It transmitted data only in one direction



Every device is connected to a single cable