[&] Which U-NII band(s) is frequently avoided in the United States due to the requirements of DFS?  (Select two answers)
- U-NII-2C -- Correct
- U-NII-3
- U-NII-2B
- U-NII-2A -- Correct
- U-NII-1

[&] In the United States, what is the maximum quantity of available 40 MHz non-overlapping channels in the 2.4GHz RF space? (Select the best answer)
- 4
- 3
- 2
- 1 -- Correct

[&] Which of the following could be a symptom of too many overlapping Wi-Fi channels in your environment? (Select the best answer)
- Increased 802.11 frame collisions
- Delays in associating to an access point
- Low throughput on the Wi-Fi network
- Authentication delays getting onto the Wi-Fi network
- None of these answers are correct
- All of these answers are correct -- Correct

[&] Which channels are most commonly leveraged to create a non-overlapping 2.4GHz Wi-Fi network using multiple access points? (Select the best answer)
- 1,6,11 -- Correct
- 1,7,14
- 1,3,5
- 1,7,12

[&] What was the first IEEE Wi-FI standard to provide for the possibility of utilizing 40MHz channels? (Select the best answer)
- 802.11ac
- 802.11n -- Correct
- 802.11a
- 802.11b