Answers to the review questions can be found in Appendix A, "Answers to Review Questions."
| 1: | What does Shannon's Law state? |
| 2: | What does the Nyquist sampling theorem state? |
| 3: | What does DMT stand for? How many subchannels does the standard (ANSI) ADSL define? |
| 4: | Why is CAP modulation sometimes called suppressed QAM? |
| 5: | What is the typical speed in the 802.11b standard? What coding techniques provide these speeds? |
| 6: | How wide is the high carrier in 802.11a; how many subchannels does it have, and how wide is each subchannel? |
| 7: | How does the 802.11g standard relate to 802.11a and 802.11b? |
| 8: | What is the relation between the terms clocking, timing, and synchronization? |
| 9: | What interface uses the pseudo-ternary coding technique? What is the size of the frame? |
| 10: | What does 2B1Q stand for and which interface does it use? What is the size of the frame? |
| 11: | What is perfect scheduling in the physical layer? |
| 12: | How do T1 circuits meet the ones density requirements? |
| 13: | Explain how the 24 framing bits in ESF are broken down and how they are used. |