Chapter 6 - I Chapter 6 The Internet A Internet Technology...

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I. Chapter 6 – The Internet A. Internet Technology 1. Background a) The ARPANET, created in 1969, connected computers at UCLA, Stanford Research Institute, University of Utah, and University of California at Santa Barbara b) Today, the Internet connect computers all over the globe and supplies information to people of all ages and interests c) With an estimated 200 million nodes and 1 billion users, the Internet is huge 2. Internet Infrastructure a) The Internet is not owned or operated by any single corporation or government b) The Internet backbone is a network of high-capacity communications links that provides the main routes for data traffic across the Internet c) Backbone links and routers are maintained by network service providers (NSPs) d) NSP equipment and links are tied together by network access point (NAPs) e) An internet service provider (ISP) is a company that offers Internet access to individuals, businesses, and smaller ISPs f) To communicate with an ISP, your computer uses some type of communications device, such as a modem 3. Internet Protocols, Addresses, and Domains a) A domain name is a key component of Web addresses, e-mail addresses, and addresses on the Web called URLs b) The first step in registering a domain name is to find out whether the name is currently in use or reserved for future use. If a domain name is not available, consider using a different top-level domain, such as biz instead of com. After you’ve found an available domain name, you can continue the registration process by filling our a simple online form 4. Connection Speed a) Data travels over the Internet at an incredible speed b) The elapsed time for data to make a round trip from point A to point B and back to point A is referred to as latency (1) Ping 1 Chapter 6
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(2) Traceroute c) Upstream vs. downstream speed d) When upstream speeds differ from downstream speeds, you have an asymmetric Internet connection e) When upstream and downstream speeds are the same, you have a symmetric Internet connection f) Internet connection options (1) Fixed Internet access (2) Portable Internet access
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This note was uploaded on 08/30/2011 for the course CGS 2100C taught by Professor Abadallah during the Spring '08 term at University of Central Florida.

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Chapter 6 - I Chapter 6 The Internet A Internet Technology...

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