The Internet is a network of smaller networks. It is a massive group of corporate networks which have agreed to work together through Network Access Points(NAP's). A Point of Presence(POP) is a place for local users to access a network. Those networks are interconnected through NAP's. Routers facilitate the transfer of data traffic over network lines and ensure both that the system does not become clogged with data and that the data reaches its intended destination. Huge fiber optic lines called backbones are used to link the larger networks together. The first backbone, called NSFNET, was created in 1987. IP addresses are used to identify computers on the various interconnected networks that make up the Internet. The four numbers in an IP address are called octets because they require 8 digits to be expressed in binary. These octets are categorized as Net or Host. the Net octets identify what network a computer belongs to and the Host octets identify the specific computer.
Muddiest Point: I am not certain that I fully understand what a dynamic IP protocol is.
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