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Allan Reid is the curriculum lead and a CCNA/CCNP instructor at the Centennial College CATC in Toronto, Canada. He is a professor in the Information and Communications Engineering Technology department and is an instructor and program supervisor for the School of Continuing Education at Centennial College. He has developed and taught networking courses for both private and public organizations and has been instrumental in developing and implementing numerous certificate, diploma, and degree programs in networking. Allan also is a curriculum developer for the Cisco Networking Academy. Outside his academic responsibilities, he has been active in the computer and networking fields for more than 25 years. Currently he is a principal in a company specializing in the design, management, and security of network solutions for small and medium-sized companies. Allan authored the first edition of WAN Technologies CCNA 4 Companion Guide(Cisco Press, ISBN 1-58713-172-2) and Using a Networker’s Journal, which is a supplement to A Networker’s Journal(Cisco Press, ISBN 1-58713-158-7). Most recently, he coauthored the CCNA Discoveryonline academy courses Networking for Home and Small Businessesand Introducing Routing and Switching in the Enterprisewith Jim Lorenz.
Jim Lorenz is an instructor and curriculum developer for the Cisco Networking Academy. He has coauthored several Cisco Press titles, including Fundamentals of UNIX Companion Guide, Second Edition (ISBN 1-58713-140-4), Fundamentals of UNIX Lab Companion, Second Edition (ISBN 1-58713-139-0), and the third editions of the CCNA Lab Companions. He has more than 20 years of experience in information systems, ranging from programming and database administration to network design and project management. Jim has developed and taught computer and networking courses for numerous public and private institutions. As the Cisco academy manager at Chandler-Gilbert Community College in Arizona, he was instrumental in starting the Information Technology Institute (ITI) and developed a number of certificates and degree programs. Most recently, Jim coauthored the CCNA Discoveryonline academy courses Networking for Home and Small Businessesand Introducing Routing and Switching in the Enterprisewith Allan Reid.
Table of Contents
|The Internet and Its Uses|
|Key Terms||p. 1|
|What Is the Internet||p. 2|
|The Internet and Standards||p. 2|
|Collaboration and Training||p. 3|
|ISPs and ISP Services||p. 4|
|Internet Service Providers||p. 4|
|Delivering Internet Services to End Users||p. 5|
|Dialup Access||p. 5|
|Cable Modem||p. 6|
|Dedicated Bandwidth Options||p. 6|
|Point of Presence||p. 7|
|Internet Hierarchy||p. 7|
|Tier 1 ISPs||p. 9|
|Tier 2 ISPs||p. 9|
|Tier 3 ISPs||p. 9|
|Identifying the Structure of the Internet||p. 9|
|Roles and Responsibilities Within an ISP|
|Activities and Labs|
|Check Your Understanding|
|Challenge Questions and Activities|
|Help Desk Technicians|
|ISP Help Desk Organization|
|Roles of ISP Technicians|
|Interacting with Customers|
|Using the OSI Model|
|OSI Model Protocols and Technologies|
|Upper Layers Create the Data|
|Layer 4 Packages the Data for End-to-End Transport|
|Layer 3 Adds the Network IP Address Information|
|Layer 2 Adds the Data Link Layer Header and Trailer|
|Layer 1 Converts the Data into Bits for Transmission|
|Troubleshooting Using the OSI Model|
|Help Desk Troubleshooting Example|
|Help Desk Troubleshooting Scenarios|
|Table of Contents provided by Publisher. All Rights Reserved.|