Signals traveling through areas in which many wireless communications systems are in

use will exhibit a lower because of the high proportion of noise.

Which frequency band offers 24 unlicensed communications channels in the United States?

Why do wireless networks experience such a great reduction in actual throughput

compared with their respective theoretical throughputs?

17. 802.11ac provides an advantage over 802.11n by incorporating increased channel

bonding capabilities. What size channels does 802.11ac support?