Here you have the best CWNP CWNA-107 practice exam questions
What factor does not influence the distance at which an RF signal can be effectively received?
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.
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?
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.
Which directional antenna types are commonly used by indoor Wi-Fi devices in a MIMO multiple spatial stream implementation?
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.
What best describes WPA2 in relation to 802.11 wireless networks?
WPA2 is a certification created by the Wi-Fi Alliance that validates devices correctly implement CCMP/AES. The Wi-Fi Alliance developed WPA2 to ensure interoperability and security in wireless networks, and it implements CCMP/AES for enhanced security measures over previous standards.
You are implementing a VHT-capable AP. Which one of the following channels is available in the 802.11-2016 standard that was not available before the ratification of 802.11 ac?
The correct channel that became available in the 802.11-2016 standard that was not available before the ratification of 802.11ac is 144. This channel was added in the updated standards for use in the 5 GHz frequency band.