This document discusses different network topologies including bus, star, ring, mesh, and hybrid topologies. It provides advantages and disadvantages of each topology. Bus topology has limited cable length and number of devices but is inexpensive. Star topology is easy to install but requires more cable. Ring topology provides equal access but is dependent on the connecting wire. Mesh topology can withstand high traffic but has high redundancy and cost. Hybrid topology is reliable and flexible but difficult to install. The document concludes by noting each topology has advantages and disadvantages and all can fail if the server has problems.