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Describe technology infrastructure including sections on Internet versus intranet versus extranet, security and identify infrastructure alternatives or risk.

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You are requested to think in the following terms: An electronic network of computers that includes nearly every university, government, and research facility in the world. Also included are many commercial sites. It started with four interconnected computers in 1969 and was known as ARPAnet. You may consider the following: A network of computer networks which operates world-wide using a common set of communications protocols. The vast collection of inter-connected networks across the world that all use the TCP/IP protocols. An internet is electronic network providing access to millions of resources worldwide. You are encouraged to think in these terms; The Internet is the largest Internet in the world. It is a three level hierarchy composed of backbone networks (eg ARPAnet, NSFNet, MILNET), mid-level networks, and stub networks. These include commercial (.com or .co), university (.ac or .edu) and other research networks (.org, .net) and military (.mil) networks and span many different physical networks around the world with various protocols including the Internet Protocol. You are encouraged to reflect on these: Kindly consider this: A worldwide network connecting millions of computers. More than 100 countries are linked into exchanges of data, news and opinions. Unlike online services, which are centrally controlled, the Internet is decentralized by design. Each Internet computer, called a host, is independent. Its operators can choose which Internet services to use and which local services to make available to the world wide Internet community. Remarkably, this anarchy by design works exceedingly well. It is important to think of the problem in these terms: The Internet, or simply the Net, is the publicly available worldwide system of interconnected computer networks that transmit data by packet switching using a standardized Internet Protocol (IP) and many other protocols. It is made up of thousands of smaller commercial, academic, domestic and government networks. It carries various information and services, such as electronic mail, online chat and the interlinked web pages and other documents of the World Wide Web. .
Please consider these facts: Despite great benefits of the Internet, companys of every kind assume substantial risks and costs when they provide Internet access, ...

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Response is 1,393 words plus references.