Question 1

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 2

What should the To DS and From DS flags be to set to in an Association Response frame?

Options :

A : To DS = 1, From DS = 1

B : To DS - 1, From DS = 0

C : To DS - 0, From DS = 0

D : To DS = 0, From DS = 1

Answer: D

Question 3

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 4

A manufacturing facility has installed a new automation system which incorporates an 802.11 wireless network. The automation system is controlled from tablet computers connected via the WLAN. However, the automation system has not gone live due to problem with the tablets connecting to the WLAN. The WLAN vendor has been onsite to perform a survey and confirmed good primary and secondary coverage across the facility. As a CWAP you are called in to perform Spectrum Analysis to identify any interference sources. From the spectrum analysis, you did not identify any interference sources but were able to correctly identify the issue. Which of the following issues did you identify from the spectrum analysis?

Options :

A : The tablets are connecting to the wrong SSID

B : The tablets are entering power save mode and failing to wake up to receive the access points transmissions

C : A high noise floor has resulted in a SNR of less than 20dB

D : There is a power mismatch between the APs and the clients

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

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