With this short book, you will learn the aspects of each protocol, including the basics of operating and safety risks, and learn the function of network hardware such as switches and routers. Understanding the basic network architecture, and how the protocol functions and fits together Learn the structure and operation of the Ethernet protocol Check the TCP / IP, including the protocol field, operations, and addressing that is used for network address resolution Sightseeing in a typical IPv4 networks Become familiar with the switch , access points, routers and other network components that process packets Discover how the Internet Control Message Protocol (ICMP) provides error messages during network operations Learn about the network mask (subnet) and how to help determine the network