CWDP-304 Real Exam Questions and Verified Answers

Question 1 Single choice

When surveying an existing WLAN infrastructure for a possible redesign, you use two Wi-Fi USB adapters to collect RSSI data and two USB spectrum analysis adapters to collect RF spectrum data. Since your laptop doesn't have enough USB ports, you use a 4-port powered USB 3.0 hub.

What issues could be caused by the use of USB 3.0 that will impact your site survey?

A
It does not give you enough bandwidth to collect data coming from all of the adapters.
B
It does not give you enough power for all four of your adapters.
C
It generates noise in the 2.4 GHz band, giving you a false perception of the noise floor.
D
It generates noise in the 5 GHz band, giving you a false perception of the noise floor.

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Correct answer: C

Question 2 Multiple choice

Location technology (RTLS) can use which of the following methods?(Choose all that apply.)

Response:

A
Sound
B
802.11-capable laptops
C
Active RFID
D
Infrared
E
UHV
F
UWB
G
Passive RFID

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Correct answers: A, B, C, D

Question 3 Single choice

Before performing a pre-deployment passive RF survey of a new deployment using survey mapping software, which of the following must be performed?

Response:

A
Determining AP transmit power
B
Scaling the map
C
Selecting antennas
D
Checking client DTPC settings

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Correct answer: B

Question 4 Single choice

What metric implements the simplest algorithm and lowest accuracy in networks requiring locations?

Response:

A
Angle of Arrival (AoA)
B
Time of Arrival (ToA)
C
Time Difference of Arrival (TDoA)
D
Received Signal Strength Indicator (RSSI)

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Correct answer: D

Question 5 Single choice

While performing a validation site survey, you realize that overlapping channels are being used on the 2.4 GHz bad due to the automatic channel assignment algorithm of the WLAN infrastructure.

What should you do to prevent this?

Response:

A
Reconfigure the network to use static channel plans because automatic channel assignment algorithms are all broken
B
Purchase and deploy new APs from a different vendor
C
Reconfigure the automatic channel assignment settings to use only channels 1, 6, and 11
D
Leave it as it is; sometimes using all 11 channels in 2.4 GHz gives the optimum performance result

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Correct answer: C

Question 6 Single choice

While using a USB adapter attached to a USB hub and your laptop for protocol analysts you notice that the SNR is lower than expected. The USB adapter is an 802 11 ac 3x3 3 adapter and is connected to a USB 3 hub.

What is likely causing the SNR variation?

A
USB 20 interference
B
USB 3 0 interference
C
EMI from the battery in the device
D
RF incidental energy generated by the cooling fans in the laptop

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Correct answer: B

Question 7 Single choice

When preparing a floor plan graphic for use in predictive and manual site surveying, what calibration method will lead to the most accurate and reliable RF data?

A
Use the known size of a small object, such as a ceiling tile, and use a single instance of this object (e.g.a single ceiling tile) to scale the floor plan.
B
Measure the width of an actual office doorway with a tape measure and use this value to calibrate against a doorway graphic.
C
Use the longest available measurement (like a straight exterior wall) to calibrate the graphic's scale.
D
Calibrate the ceiling height of the floor plan first, then the survey software should be able to auto-calibrate the X and Y planes of the graphic.

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Correct answer: C

Question 8 Single choice

A museum wants to offer Wi-Fi to its visitors. One of their requirements is to have the APs blend into the design of the museum.

What should you do to meet this requirement?

A
Use a plastic cover that could blend in with the environment
B
Lock the AP inside of a metal box
C
Place the APs in between walls and I-beams
D
Use an 802.11b AP, so it looks old enough to be in a museum

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Correct answer: A

Question 9 Multiple choice

What type of standards-based encryption is used by office extension APs for the traffic tunnel?(Choose all that apply.)

Response:

A
CAPWAP
B
LWAPP
C
TKIP
D
AES
E
DTLS

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Correct answers: A, E

Question 10 Single choice

You are on site, planning a network at a freight shipping company on a busy harbor. Since the preliminary WLAN design specifies support for the 5 GHz spectrum, you would like to test for radar pulses to determine if DFS channels should be supported at this facility. As a part of your spectral survey with a laptop-based analyzer, you include DFS testing to identify the presence of radar. This is done by manually
observing Real-time FFT,

Duty Cycle, and Active Devices charts of the spectrum analyzer software.

What potential drawback is present with this DFS test method?

A
Many WLAN products that support DFS channels report several false positives. Ideally, the actual WLAN equipment used in the deployment should be used to test for DFS.
B
Some sources of 5 GHz radar, such as military ships, are mobile in nature. A longer, automated test setup should be used to identify the presence or absence of radar.
C
Manual identification of radar pulses using spectrum analysis charts can be very difficult due to radar's low amplitude at the Wi-Fi receiver.
D
Modern spectrum analyzer adapters do not provide the necessary bandwidth resolution required to detect and measure radar signatures.

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Correct answer: C