The Internet has become an integral part of our daily lives. This course will teach you about the technological foundation of this worldwide network. You will learn about its physical foundation of data transmission based on the functional principles and technologies of local area networks (LANs) and wide area networks (WANs). The TCP/IP reference model, that lies at the base of the Internet, its protocols and countless applications, will be presented in the units to follow. The participant will gain comprehensive insight into the complex world of Internet technologies.