italengineeringlibrary.com) Copyright © 2004 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website. Transport Technologies Transport Technologies ment is still somewhat in the future because of the logistics of deploy- ment. Its use, however, is growing at a rapid rate. Chapter Summary This concludes our long-winded coverage of transport solutions. Clearly they are remarkably diverse, but with that diversity and complexity comes an equally far-ranging degree of capability. And that capability is necessary, considering how diverse the market is - as we'll see in the fol- lowing chapter on market segments. Chapter 7 Questions What is the difference between access and transport? Explain the advantages and disadvantages of dedicated VS. switched transport facilities. Draw and label the switching hierarchy. How do frame relay and ATM differ? "Even though frame relay is viewed as a transport technology, it is really an access solution." Explain. What is the purpose of the ATM adaptation layer? How do the ATM layer and the ATM adaptation layer differ? Explain how addressing differs in ATM and frame relay. What is the difference between single mode and multimode fiber? How does an EDFA work? What are the primary optical sources in use today? Even though optical fiber is immune from electromagnetic interference, it still suffers from transmission impairments. What are some of them? Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website. Transport Technologies Chapter 7 Has anyone yet implemented broadband over power lines? (Use the Web to research your answer.) Draw and label the TCP/IP protocol stack. How do TCP and UDP differ? How are they each used and What is the difference between a label-switched router and a label edge router? Downloaded from Digital Engineering Library @ McGraw-Hill (www.digita