A client complains of low data rates on his computer. When you evaluate the situation, you see that the signal strength is -84 dBm and the noise floor is -96 dBm. The client is an 802.11ac client and connects to an 802.11ac AP. Both the client and AP are 2x2:2 devices. What is the likely cause of the low data rate issue?

• A.Too few spatial streams
• B.Lack of support for 802.11n
• C.CAT5e cabling run to the AP
• D.Weak signal strength

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You are being interviewed by ABC Company for employment as a wireless site survey expert.
The interviewing manager asks you what items should be included in a site survey report generated as part of a manual site survey process.
What answer would be accurate?

• A.Documentation noting how each WLAN user group will authenticate to the network
• B.Itemized list of equipment, licenses, and support contracts required for the facility
• C.Documentation proving proper entry of wall material types into the site survey software
• D.RF heat map illustrating coverage and signal quality for each frequency band

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What advantages does using predictive site survey modeling software offer over performing a manual site survey? (Choose 2)

• A.Predictive modeling software can predict the ideal access point location 100% of the time, whereas the results from manual surveyingare less reliable.
• B.It takes less time to create an initial site survey for a large facility when using predictive modeling software than when performing a manual survey.
• C.Predictive modeling software makes it simple to assess multiple different AP locations and then adjust and display the AP's expected coverage pattern in almost real-time.
• D.Predictive modeling software provides more reliable data than manual surveys when fine-tuning and validating access point placement after the installation.
• E.The exact impact of interference sources from external networks can be more accurately measured when using predictive modeling software than with manual surveys.

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When an ACK frame is not received by the transmitting STA, what is assumed?

• A.The frame was not delivered and must be retransmitted
• B.The frame was correctly delivered
• C.The receiver processed the frame, but did not respond with an ACK frame because 802.11w is enabled
• D.The receiver is offline

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What factors are likely to cause the greatest impact on the application layer throughput of an
802.11n client station in a 2.4 GHz HT BSS? (Choose 3)

• A.Increasing the beacon interval from 100 to 200 (TUs)
• B.Increasing or decreasing the number of spatial streams in use by the client station and AP
• C.Use of passphrase authentication instead of 802.1X/EAP authentication
• D.RF interference from more than 10 nearby Bluetooth transmitters
• E.Use of WEP or TKIP for encryption instead of CCMP

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