Certified Wireless Network Administrator

Here you have the best CWNP CWNA-107 practice exam questions

You have 97 total questions to study from
Each page has 5 questions, making a total of 20 pages
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This questions were last updated on November 19, 2025
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Question 1 of 97

What factor does not influence the distance at which an RF signal can be effectively received?

Free Space Path Loss

Receiving station’s radio sensitivity

Transmitting station’s output power

Receiving station’s output power

Correct Answer: D

The distance at which an RF signal can be effectively received is influenced by factors such as the free space path loss, the receiving station's radio sensitivity, and the transmitting station's output power. However, the receiving station's output power does not affect the distance at which it can receive a signal. Therefore, the correct answer is the receiving station's output power.

Question 2 of 97

A WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB loss. If the cable is connected to an antenna with 9dBi gain, what is the EIRP at the antenna element?

23 dBm

26 dBm

13 dBm

10 dBm

Correct Answer: A

To calculate EIRP (Effective Isotropic Radiated Power), we need to convert the transmitter power from mW to dBm first. The formula to convert mW to dBm is: 10 * log10(mW). For 50 mW, the conversion is 10 * log10(50) = 16.99, which is approximately 17 dBm. Next, we account for the cable loss of 3 dB: 17 dBm - 3 dB = 14 dBm. Finally, we add the antenna gain of 9 dB: 14 dBm + 9 dB = 23 dBm. Therefore, the EIRP at the antenna element is 23 dBm.

Question 3 of 97

In a long-distance RF link, which statement about Fade Margin is true?

The Fade Margin is a measurement of signal loss through free space and is a function of frequency and distance.

The Fade Margin of a long-distance radio link should be equivalent to the receiver’s low noise filter gain.

A Fade Margin is unnecessary on a long-distance RF link if more than 80% of

Fade Margin is an additional pad of signal strength designed into the RF system to compensate for unpredictable signal fading.

Correct Answer: D

Question 4 of 97

What wireless networking term describes the increase of RF energy in an intentional direction with the use of an antenna?

Directed Radiation

Active Amplification

Passive Gain

Beam Digression

Correct Answer: C

Question 5 of 97

Which directional antenna types are commonly used by indoor Wi-Fi devices in a MIMO multiple spatial stream implementation?

Dish and grid

Dipole and yagi

Grid and sector

Patch and panel

Correct Answer: D

Patch and panel antennas are commonly used by indoor Wi-Fi devices in a MIMO multiple spatial stream implementation. These types of antennas provide semi-directional coverage suitable for indoor environments where coverage needs to be managed more precisely, unlike dipole or yagi antennas which are less typical for such implementations.