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CWNP CWAP-404 Practice Test - Questions Answers, Page 3

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Question 21

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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?

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Question 22

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Finish the statement:

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

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Question 23

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What is the function of the PHY layer?

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Question 24

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What is the function of the PHY Preamble?

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Question 25

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A PHY Header is added to the PSDU at which layer?

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Question 26

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Which one of the following portions of information is communicated by bits in the PHY Header?

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Question 27

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When performing protocol analysis, you capture an 802.1 lac data frame on channel 52, transmitted at MCS 8. At what data rate was the PHY Preamble transmitted?

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Question 28

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Which piece of information is not transmitted in an HT PPDU header?

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Question 29

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Given: The Frame Check Sequence (FCS) is a 32 CRC used for error detection.

The CRC is calculated over what?

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Question 30

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Where would you look in a packet trace file to identify the configured Minimum Basic Rate (MBR) of a BSS?

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Related questions

Finish the statement: It is possible to distinguish between_______22 MHz transmissions and________20 MHz transmissions when looking at an FFT plot.
When performing protocol analysis, you notice a high number of RTS/CTS frames being transmitted on an HT network. You suspect this may be due to HT protection mechanisms. Where in the Beacon frame would you look to determine which one of the four HT protection modes the AP is operating in?
You have installed a new 802.1 lac WLAN configured with 80 MHz channels. Users in one area are complaining about poor performance. This area is currently served by a single AP. You take a spectrum analysis capture in the poor performing are a. While examining the waterfall plot you notice the airtime utilization is higher on the first 20 MHz of the 80 MHz channel when compared to the rest of the channel. What do you conclude?
Given: The Frame Check Sequence (FCS) is a 32 CRC used for error detection. The CRC is calculated over what?
Why would a STA that supports 802.11k Radio Measurement send a Neighbor Request to an AP?
Where would you look in a packet trace file to identify the configured Minimum Basic Rate (MBR) of a BSS?
Which piece of information is not transmitted in an HT PPDU header?
What is an AIFS?
Protocol analyzers may present field values in either binary, decimal or hexadecimal. What preceeds a hexadecimal value to indicate it is hexadecimal?
ABC International has installed a new smart ZigBee controlled lighting system. However, the network team is concerned that this new system will interfere with the existing WLAN and has asked you to investigate the impact of the two systems operating simultaneously in the 2.4 GHz band. When performing Spectrum Analysis, which question could you answer by looking at the FFT plot?