.3.1 Who Pays for the Internet? 20.3.2 Resellers vs. Carriers 20.4Commonly Used Internet Protocols 20.4.1 Network Protocols 20.4.2 Transport Protocols 20.4.3 Application Protocols 20.5TCP and UDP 20.6Domain Name System 20.7MIME: E-Mailing Multimedia Files 20.7.1 Binary VS. Text 20.7.2 Transformations 20.7.3 Quoted-Printable and Base-64 Encoding 20.8World Wide Web 20.8.1 Servers and Clients 20.8.2 Hyperlinks and URLs 20.9HTML, HTTP and HTTPS 20.10 Web Browsers 20.11 Accessing the Internet: Home Connections 20.12 Access for an Organization 20.13 Current Internet Issues 20.13.1 IP Addressing 20.13.2 Router Table Update Overhead 20.13.3 Dial-Up Access PAGE 14 TELECOM 101 REFERENCE BOOK TERACOM TRAINING INSTITUTE 20.13.4 Quality of Service 21 WRAPPING UP The final chapter brings all of the concepts together with a top-down review. You'll learn valuable insight in how technology should be deployed, and review mainstream services and solutions. We'll conclude with a view toward the future: the IP Packet-Switched Telecommunications Network. the first diagram from the next Teracom textbook "IP Telecom". 21.1 System Development Methodology 21.2Top-Level Requirements 21.3 Design 21.4Implementation: Circuits and Services 21.5Access / Network Connection Combinations 21.6Private Network WAN Design 21.7Frame Relay WAN 21.8Native IP WAN 21.9 The Future ACRONYMS AND ABBREVIATIONS INDEX About the Author Eric Coll is an international expert in telecommunications, data communications and networking and has been actively involved in the industry since 1983. He holds Bachelor's and Master of Engineering (Electrical) degrees, and is licensed as a Professional Engineer in his home jurisdiction. Mr. Coll has taught telecommunications technology training seminars to wide acclaim across North America since 1992, and has broad experience working as an engineer in the telecommunications industry. He has worked for Nortel's R&D labs as a design engineer on projects including digital voice and data communications research and digital network e