This document discusses different types of network topologies, including physical and logical topologies. It describes bus, ring, star, mesh, tree, and hybrid topologies. For each topology, it covers features, advantages, and disadvantages. Bus topology has all devices connected to a single cable. Ring topology forms a ring with each device connected to two others. Star topology connects all devices to a central hub. Mesh topology uses point-to-point connections between all devices. Tree topology connects devices in a hierarchical structure below a root node. Hybrid topologies combine two or more topologies.