CWNA-109

CWNA-109 practice questions, page 5 of 5, with answer review and explanations.

Question 21

What feature of 802.11ax (HE) may impact design decisions related to AP placement and the spacing between same-channel BSS cells (BSAs) because it is designed to reduce overlapping BSS contention?

  1. 6 GHz band support
  2. Uplink MU-MIMO
  3. BSS Color
  4. TWT

Question 22

You are reporting on the RF environment in your facility. The manager asks you to describe the noise floor noted in the report. Which of the following is the best explanation?

  1. The extra energy radiated by access points and client devices beyond that intended for the signal.
  2. The noise caused by elevators, microwave ovens, and video transmitters.
  3. The energy radiated by flooring materials that causes interference in the 2.4 GHz and 5 GHz bands.
  4. The RF energy that exists in the environment from intentional and unintentional RF radiators that forms the baseline above which the intentional signal of your WLAN must exist.

Question 23

An 802.11 WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB of loss. The cable is connected to an antenna with 16 dBi of gain. What is the power level at the Intentional Radiator?

  1. 500 mw
  2. 250 mw
  3. 25 mw
  4. 1000 mw