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
Which of the following channel widths are supported in 802.11ac? (Choose all that apply.)
- A . 20 MHz
- B . 40 MHz
- C . 80 MHz
- D . 80+80 MHz
- E . 160 MHz
What is the maximum number of resource units that can be used for a 20 MHz OFDMA channel?
- A . 2
- B . 4
- C . 9
- D . 26
- E . 52
Which of the following 802.11 frames carry an MSDU payload that may eventually be transferred by the integration service into an 802.3 Ethernet frame?
- A . 802.11 management frames
- B . 802.11 control frames
- C . 802.11 data frames
- D . 802.11 action frames
- E . 802.11 association frames
The guard interval is used as a buffer to compensate for what type of interference?
- A . Co-channel interference
- B . Adjacent cell interference
- C . RF interference
- D . HT interference
- E . Intersymbol interference
When is an ERP (802.11g) AP required by the IEEE 802.11-2012 standard to respond to probe request frames from nearby HR-DSSS (802.11b) stations? (Choose all that apply.)
- A . When the probe request frames contain a null SSID value
- B . When the AP supports only ERP-OFDM data rates
- C . When the AP supports only HR/DSSS data rates
- D . When the Power Management bit is set to 1
- E . When the probe request frames contain the correct SSID value
When 802.1X/EAP security is deployed, RADIUS attributes can also be leveraged for role-based assignment of which type of user access permissions? (Choose all that apply.)
- A . Stateful firewall rules
- B . Time
- C . VLANS
- D . ACLs
- E . Bandwidth
When installing a higher-gain omnidirectional antenna, which of the following occurs? (Choose two.)
- A . The horizontal coverage increases.
- B . The horizontal coverage decreases.
- C . The vertical coverage increases.
- D . The vertical coverage decreases.
Name potential sources of interference that might be found during a 2.4 GHz site survey.# (Choose all that apply.)
- A . Toaster oven
- B . Nearby 802.11 FHSS access point
- C . Plasma cutter
- D . Bluetooth headset
- E . 2.4 GHz video camera
Savannah has to perform a site survey for a WLAN by using a multiple-channel architecture (MCA) system in a 20-story building with multiple tenants.
What should Savannah consider during the planning and implementation stages of the site survey? (Choose all that apply.)
- A . Other tenants’ WLANs should be considered.
- B . Only WLAN controller solutions with lightweight APs should be deployed and not autonomous access points.
- C . Access points should use high-gain omnidirectional antennas to provide coverage across multiple floors.
- D . Access points should be at full transmit power to provide coverage across multiple floors.
- E . The cell coverage of each access point should extend to only one floor above and one floor below to create a three-dimensional channel reuse pattern.
Requiring all frames to be transmitted as A-MPDU frames increases performance due to which of the following? (Choose all that apply.)
- A . Frame overhead is reduced.
- B . Block ACK is required.
- C . Frame information is shifted from the MPDU header to the PLCP header.
- D . Reduced Interframe Space (RIFS) decreases the amount of time between frames.
- E . A-MSDU is required; A-MPDU is optional.