Free Access CWNP.CWDP-305.v2026-03-09.q251 Practice Test (Page 17)

Question 76

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 3 0 interference

B.RF incidental energy generated by the cooling fans in the laptop

C.USB 20 interference

D.EMI from the battery in the device

Question 77

While performing a validation site survey, you realize that overlapping channels are being used on the 2.4 GHz band due to the automatic channel assignment algorithm of the WLAN infrastructure. What should you do to prevent this?

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

Question 78

Why does a frame transmitted at 1 Mbps have a greater usable range than the same frame transmitted at 54 Mbps?

A.Free space path loss causes greater signal dispersion for higher rate transmissions.

B.Receiver sensitivity requirements are lower for frames transmitted with less complex modulation and coding.

C.To improve reliability, 802.11 STAs increase transmit power as the signaling rate decreases.

D.Lower data rate RF transmissions travel at higher speeds and are less likely to experience collisions.

Question 79

In what circumstance would you not enable DFS channels on a WLAN infrastructure?

A.In any home office

B.In any stadium

C.In any office complex

D.In an airport

Question 80

A signal passes through a 10-meter cable, an amplifier, and then a filter. The amplifier has an output that is eight times higher in power than its input. Each meter of cable reduces the signal level by a factor of 4. The filter has a loss of 5 dB.
What is the total loss/gain of the three elements in series?
Response:

A.37 dB loss

B.65 dB loss

C.16 dB gain

D.56 dB loss

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Question 76

Question 77

Question 78

Question 79

Question 80

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