CWNP CWNA-109 Practice Exams
Last updated on Oct 23,2026- Exam Code: CWNA-109
- Exam Name: Certified Wireless Network Administrator
- Certification Provider: CWNP
- Latest update: Oct 23,2026
Professor Perry Correll has an Ethernet switch that is compliant with 802.3at. He is having problems with his APs randomly rebooting.
Which of the following could be causing his problems?
- A . Multiple desktop PoE VoIP telephones are connected to the same Ethernet switch.
- B . Most of the Ethernet cables running from the switch to the APs are 90 meters long.
- C . The Ethernet cables are only Cat 5e.
- D . The switch is capable of 1000BaseT, which is not compatible with the AP.
Lynne runs a small hotel, and as a value added for his customers he has implemented a Wi-Fi hotspot. Lynne has read news articles about how hackers wait at hotspots trying to take advantage of unsuspecting users. He wants to avoid this problem at his hotel.
What is an efficient and practical step that Lynne can take to decrease the likelihood of active attacks on his customers’ wireless computers?
- A . Implement Network Access Control (NAC) and require antivirus and firewall software along with OS patches.
- B . Implement an SSL VPN in the WLAN controller that initiates after HTTPS login.
- C . Enable station-to-station traffic blocking by the access points in the hotel.
- D . Require EAP_FAST authentication and provide customers with a username/password on their receipt.
Layer 2 retransmissions occur when frames become corrupted.
What are some of the causes of layer 2 retries? (Choose all that apply.)
- A . High SNR
- B . Low SNR
- C . Co-channel interference
- D . RF interference
- E . Adjacent channel interference
What 802.11 PHY uses available space in very low frequency ranges that is not in use at the time by broadcast video signals?
- A . DMG
- B . SIG
- C . DSSS
- D . TVHT
Which of the following measures the difference between the power of the primary RF signal and the sum of the power of the RF interference and the background noise?
- A . Noise ratio
- B . SNR
- C . SINR
- D . BER
- E . DFS
What RF technology do IoT client devices use for communication?
- A . Wi-Fi
- B . Bluetooth
- C . Zigbee
- D . All of the above
In an enterprise WLAN, what condition will prevent a dual-band VHT/HT client device from performing a fast and seamless transition (i.e. latency-sensitive applications are not disrupted) between two access points that are managed by the same WLAN controller?
- A . The current AP is using channel 1 and the new AP is using channel 40.
- B . The SSID of the current AP does not match the SSID of the new AP.
- C . The current AP supports only HT and the new AP is VHT capable.
- D . The access points are hiding the SSID in Beacons and Probe Response frames.
The Harkins Corporation has hired you to make recommendations about a future wireless deployment that will require more than 300 access points to meet all coverage requirements.
What is the most cost-efficient and practical recommendation in regard to providing electrical power to the access points?
- A . Recommend that the customer replace older edge switches with new switches that have inline PoE.
- B . Recommend that the customer replace the core switch with a new core switch that has inline PoE.
- C . Recommend that the customer use single-port power injectors.
- D . Recommend that the customer hire an electrician to install new electrical outlets.
Which of the following statements best describe security considerations during a wireless site survey? (Choose all that apply.)
- A . Questions will be asked to define the customer’s security expectations.
- B . Wireless security recommendations will be made after the survey.
- C . Recommendations about wireless security policies may also be made.
- D . During the survey, both mutual authentication and encryption should be implemented.
What item is essential for performing a manual RF site survey for a warehouse facility?
- A . A facility map with an explanation of applications used in each area
- B . I-Beam mounting kits for hanging temporary access points
- C . Low-gain omni antennas for APs mounted high on warehouse ceilings
- D . Predictive site survey software that supports highly directional antennas
- E . NEMA enclosures that protect APs used for the survey