Which wireless NIC form factors are best for small wireless computer devices?
Answer: PC Card, Mini-PCI, and CompactFlash.
What are examples of elements that impair the propagation of wireless communications signals through the air medium?
Answer: Rain, snow, smog, and smoke.
What is the primary purpose of a base station?
Answer: Interfaces the wireless communications signals traveling through the air medium to a wired network.
What are common features of wireless middleware?
Answer: Optimization techniques, intelligent restarts, data bundling, screen shaping and reshaping, and end-system support.
On what layers of the OSI reference model do wireless networks operate?
Answer: Physical layer and data link layer.
How is throughput different from data rate?
Answer: Throughput doesn't include overhead of protocols.
True or false: A computer device stores data in analog form.
A wireless NIC must convert the information into what type of signal before transmission through the air medium?
Which medium access protocol is common with wireless networks?
Explain how the ARQ form of error control works.
Answer: The receiving wireless NIC performs error checking and sends a request to the sending wireless NIC to retransmit the frame if errors are found.