This Topic gives a general overview of the subject. Major sub-topics include Internet architecture and service; Network Components and network types.
In this Topic we discuss the principles of Applications, the Web and HTTP, File Transfer: FTP, Electronic Mail in the Internet and DNS.
Topic 3 discusses principles of OSI layer 3 protocol (Network Layer); Connection and Connection-less services; Functions of a Router and finally IPv4 and IPv6 principles.
Topic 4 covers Wireless Links and Network Characteristics, WiFi: 802.11 Wireless LANs, Cellular Internet Access, Mobility Management: Principles.