Chapter 7
| 1: | What types of user devices are most common with wireless WANs? |
| A1: | Answer: Laptops, PDAs, and mobile phones. |
| 2: | Why do wireless WAN operators always charge for services? |
| A2: | Answer: Wireless WANs are expensive to install. |
| 3: | Why must you be careful when selecting a wireless WAN radio NIC for your user device? |
| A3: | Answer: There are many different types of wireless WANs that are not compatible with each other. |
| 4: | What is an advantage of a satellite system? |
| A4: | Answer: It can cover vast areas. A single satellite can cover roughly one-third of the Earth's surface. |
| 5: | Which generation of cellular systems offers data rates up to 2 Mbps? |
| A5: | Answer: Third generation (3G). |
| 6: | Which type of wireless WAN system is most common? |
| A6: | Answer: Cellular systems. |
| 7: | Which of the two following cellular systems offers the highest data rates: GPRS or UMTS? |
| A7: | Answer: UMTS. |
| 8: | What is the primary issue with meteor burst communications? |
| A8: | Answer: Low data rates. |
| 9: | True or false: FDMA requires users to take turns transmitting signals. |
| A9: | Answer: False. |
| 10: | How does CDMA keep users from interfering with each other? |
| A10: | Answer: Each user transmits using a different code. |
