CWNP CWNA-109 Practice Exams
Last updated on Oct 22,2026- Exam Code: CWNA-109
- Exam Name: Certified Wireless Network Administrator
- Certification Provider: CWNP
- Latest update: Oct 22,2026
Assuming all channels are supported by a 5 GHz access point, how many possible 20 MHz channels can be configured on the access point?
- A . 4
- B . 11
- C . 12
- D . 25
When considering data rates available in HT and VHT PHY devices, in addition to the modulation, coding, channel width, and spatial streams, what impacts the data rate according to the MCS tables?
- A . Frequency band in use
- B . client drivers
- C . guard interval
- D . Antenna Height
If an 802.11 RF transmission reaches a receiving antenna simultaneously by direct and reflected paths, what effect will the reflected signal have on the signal that took the direct line-of-sight path?
- A . The direct signal will only be received if the reflected signal is more than 180 degrees out of phase.
- B . The direct signal cannot be received if the indirect signal is less than 90 degrees out-of-phase.
- C . The signals will be distorted if the indirect signal arrives simultaneously at the receiver, but 90 degrees out-of-phase.
- D . If the signals are in-phase, they will combine together, cancel one another out, and create a null.
If an 802.11 RF transmission reaches a receiving antenna simultaneously by direct and reflected paths, what effect will the reflected signal have on the signal that took the direct line-of-sight path?
- A . The direct signal will only be received if the reflected signal is more than 180 degrees out of phase.
- B . The direct signal cannot be received if the indirect signal is less than 90 degrees out-of-phase.
- C . The signals will be distorted if the indirect signal arrives simultaneously at the receiver, but 90 degrees out-of-phase.
- D . If the signals are in-phase, they will combine together, cancel one another out, and create a null.
Which 802.11ax guard interval (GI) is intended solely for outdoor communications?
- A . 0.4 microseconds
- B . 0.8 microseconds
- C . 1.6 microseconds
- D . 3.2 microseconds
- E . 6.4 microseconds
AP-1 is a 3×3:2 AP. STA-3 is a 3×3:3 client.
What is the maximum number of spatial streams that can be used for a downlink HT-OFDM transmission from AP-1 to STA-3?
- A . One spatial stream, because the definition of the AP indicates that it is capable of only one spatial stream.
- B . Three spatial streams, because the definition of the client indicates that it is capable of only three spatial streams.
- C . Two spatial streams, because the definition of the AP indicates that it is capable of only two spatial streams.
- D . Three spatial streams, because the definition of the AP indicates that it is capable of only three spatial streams.
Which security solutions may be used to segment a wireless LAN? (Choose all that apply.)
- A . VLAN
- B . WEP
- C . RBAC
- D . CCMP/AES
- E . TKIP/RC4
What are the required data rates of an OFDM station?
- A . 3, 6, and 12 Mbps
- B . 6, 9, 12, 18, 24, 36, 48, and 54 Mbps
- C . 6, 12, 24, and 54 Mbps
- D . 6, 12, and 24 Mbps
- E . 1, 2, 5.5, and 11 Mbps
What are the available form factors for network management system (NMS) solutions? (Choose all that apply.)
- A . Hardware appliance
- B . Virtual appliance
- C . Cloud subscription service
- D . Integrated access point
What are some recommendations when using 40 MHz channels in the 5 GHz band? (Choose all that apply.)
- A . Enable the DFS channels.
- B . Lower AP transmit power.
- C . Verify wall attenuation.
- D . All of the above