Appendix A
Answers to Review Questions
Chapter 1
1. Answer: d. The data link layer of the OSI model is the only layer of the famous model that is typically divided into sublayers (the MAC and LLC sublayers).
2. Answer: b. Baseband technology uses the entire medium to transmit. In contrast, broadband technology can divide the medium into different channels. A great example of broadband is the use of the coaxial cable you might have in your home, which carries cable television signals as well as high-speed Internet.
3. Answer: c. The transport layer offers TCP and UDP. With TCP, a connection-oriented protocol, windowing can be used to dictate how much data is sent at one time.
4. Answer: a. An IP address is a typical ingredient at the network ...
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