This document discusses various topics relating to computer networks and network fundamentals. It defines different types of networks including LANs, WANs, WLANs, MANs, SANs, CANs and PANs. It also discusses network terminology such as bandwidth, intranets, extranets, virtual private networks, and quality of service (QoS). The document provides examples and diagrams to illustrate these network concepts. Learning objectives and sample questions are also included to help assess understanding of the key network fundamentals.