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