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Intro ch 09_b
- 1. McGraw-Hill Technology Education Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
- 2. Chapter 9B Data Communications
- 18. Chapter 9B End of Chapter
Hinweis der Redaktion
- Insider Information The actual name used by phone technicians is Public Switched Telephone Network (PSTN). Mention POTS to the wrong technician and you will get an earful!
- Insider information The Federal Communications Commission (FCC) limits modem speed over an analog line to 53Kbps. Teaching tip Determine what your local ISPs support. If your ISPs do not support V.92, suggest to your students to purchase a V.90 modem. They will likely save $10 on the purchase and see no performance difference.
- Teaching tip Draw a diagram showing the Internet ‘above’ the client computer to illustrate where the names come from.
- Teaching tip More information on T lines can be found at ckp.made-it.com/t1234.html.
- Teaching tip The website www.dslreports.com provides unbiased information regarding DSL providers.
- Discussion point Wireless networks have drawbacks. Direct your students to discover some of these drawbacks including security, speed and complexity.
- Teaching tip Spend a little time here describing a home solution to share a broadband connection using a wireless solution. Describe products, security concerns and WAP placement.