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Question 1

In a Spectrum Analyzer the Swept Spectrogram plot displays what information?

Options :

A : RF power present at a particular frequency over the course of time

B : Reductions in frame transmissions

C : Wi-Fi Device information

D : The RF time domain

Answer: A

Question 2

Finish the statement: It is possible to distinguish between_______22 MHz transmissions and________20 MHz transmissions when looking at an FFT plot.

Options :

A : HR/DSSS and ERP

B : OFDM and HT

C : ERP and VHT

D : HT and VHT

Answer: B

Question 3

What action is taken automatically by 802.11 APs and client STAs as the signal strength of the link weakens in order to improve the quality of the RF communications overall?

Options :

A : Output power is increased

B : RSSI is increased

C : Data rates are reduced

D : Antenna gain is increased

Answer: C

Question 4

After examining a Beacon frame decode you see the SSID Element has a length of 0. What do you conclude about this frame?

Options :

A : The frame is corrupted

B : SSID elements always have a length of 0

C : This is a common attack on WISP backend SQL databases

D : The beacon is from a BSS configured to hide the SSID

Answer: D

Question 5

You are considering disabling the data rates of 1, 2, 5.5 and 11 in the 2.4 GHz band. What advantage might this provide to the networks operating in this band?

Options :

A : The antennas will be able to zero in on the higher data rates better

B : The range of the PHY preamble and header will be reduced

C : Frames that must be transmitted at the lowest common data rate can be transmitted at higher data rates after the change

D : The RF signals will not travel as far

Answer: C