You can find the answers to the following questions in Appendix A, "Answers to Chapter Review Questions."
1:
According to this book, what are the three major components of the Internet?
2:
Leased lines provide a service of forwarding bits, whereas Frame Relay provides a service of forwarding Frame Relay frames. With that same perspective, explain the service that the Internet supplies to hosts.
3:
What is different about the type of electrical signal sent over the local loop by a phone, versus a modem?
4:
What is different about the type of electrical signal sent over the local loop by a phone, versus a DSL modem?
5:
What two features of analog electrical signals, mentioned in this book, can a modem vary or change to encode a binary 0 or 1?
6:
Approximately what speed is the maximum transmission speed with modems?
7:
Approximately what speed is the maximum transmission speed with DSL modems when the distance from the home to the CO is relatively long?
8:
For DSL to work, the telco splits the data out from the voice using what kind of device?
9:
What does DSL stand for?
10:
What does modem stand for?
11:
Which of the three Internet access technologies covered in this chapter does not allow you to talk on the phone while using the Internet?
12:
What Layer 2 protocol is typically used when using a modem or DSL to connect to an ISP?