Module 11: Internet Technologies

CMPS 161: Networking and Security


This module focuses on internet technologies that have not previously discussed, but are also important. This includes technologies that you are all familiar with, such as Digital Subscriber Lines (DSL) and cable modems, but also DHCP and DNS, where the latter makes it possible to type a domain name into the address bar of your browser, instead of an IP address. The second part of this module looks at the practical skill of troubleshooting. Unfortunately, technology has a tendency to not work properly or break and the culprit has to be identified and either fixed or replaced.

Module Objectives

  • Describe line connection, data channels and point of presence
  • Describe the function of CSU/DSU
  • Discuss the HDLC and PPP encapsulation protocols
  • Describe modern remote access technologies including DSL and cable modems
  • Describe the purpose of the remote access server
  • Describe Metro Ethernet and Carrier Ethernet and related services types
  • Describe the purpose of DHCP and DNS network services
  • Discuss internet routing with BGP
  • Describe Internet data traffic

Learning Resources

  • Module 11 Readings: Chapter 10
  • Module 11 Slides: Chapter 10

Learning Activities

  • Module 11 Quiz: Chapter 10
  • Module 11 Assignment: Certification questions from the end of the chapter

For Further Study

It is highly recommended to work through the exercises at the end of the chapter.

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