Network structure states how a network is designed. It is also known as network topology. A network structure has two levels, I.e., physical and logical. Bus, ring, star and hybrid are the four main types of network structures.
The physical level is composed as the parts of a network that physically exist, such as computers cables and connectors. This level specifies where the computers on a network are located and how all the parts of the network are connected. Cables are the most popular transmission media to transfer information on network.
The logical level traces the path on which the information takes to reach it’s destination on a network. The logical level of a network depends on many factors, such as the applications used and the volume of information transferred over the network. Computers share information by exchanging electrical signals. Signals are sent via the transmission medium that connects the computers.