CWNP CWNA-109 Übungsprüfungen
Zuletzt aktualisiert am 08.05.2025- Prüfungscode: CWNA-109
- Prüfungsname: Certified Wireless Network Administrator
- Zertifizierungsanbieter: CWNP
- Zuletzt aktualisiert am: 08.05.2025
dBi is a measure of what?
- A . The output of the transmitter
- B . The signal increase caused by the antenna
- C . The signal increase of the intentional transmitter
- D . The comparison between an isotropic radiator and the transceiver
- E . The strength of the intentional radiator
To reduce airtime consumption and provide for better capacity in the 5 GHz band, which data rates are recommended to be selected as basic rates? (Choose all that apply.)
- A . 6 Mbps
- B . 9 Mbps
- C . 12 Mbps
- D . 18 Mbps
- E . 24 Mbps
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
Select the absolute units of power. (Choose all that apply.)
- A . Watt
- B . Milliwatt
- C . Decibel
- D . dBm
- E . Bel
Which is the preferred channel and power configuration method for enterprise Wi-Fi APs? (Choose all that apply.)
- A . Adaptive RF in standard RF environments
- B . Static channel and power settings in standard RF environments
- C . Adaptive RF in complex RF environments using directional antennas
- D . Static channel and power settings in complex RF environments using directional antennas
XYZ Corporation is experiencing connectivity problems with their existing building-to-building bridge link. A concrete wall on the roof of one building is partially blocking the Fresnel Zone, and the connection is dropping many frames.
The administrator moves the antenna to an area not obstructed by the concrete wall and then realizes the RF cable cannot reach the new location.
If an extension cable is added to move the antenna, what are the likely results?
- A . The data throughput rate will increase because VSWR will decrease.
- B . The Equivalent Isotropically Radiated Power (EIRP) will decrease.
- C . The antenna’s azimuth beamwidth will decrease.
- D . The size of the Fresnel zone will increase.
- E . The likelihood of a direct lightning strike will increase.
Select the four labels that a WIPS uses to classify an 802.11 device.
- A . Infrastructure
- B . Known
- C . Enabled
- D . Disabled
- E . Rogue
- F . Unknown
ABC Company has a 2.4 and 5 GHz WLAN deployment. DFS functionality is enabled as required by the regulatory domain and APs use DFS channels as long as radar is not detected. Band steering is also enabled to encourage dual-band clients to use frequency bands with more capacity.
Your performance analysis shows that many dual-band VoWiFi client devices will move back and forth between 2.4 and 5 GHz as the users roam throughout the building. All APs have 2.4 and 5 GHz radios enabled with transmit power adjusted to accommodate relatively similar cell sizes. This “band hopping” behavior is viewed by network staff to be undesirable.
What is the most likely cause of the unpredictable client band selection behavior?
- A . Interference from 5 GHz radar sources has increased frame corruption and retries on channels 36- 48.
- B . 5 GHz frequencies offer better RF penetration than 2.4 GHz, but 2.4 GHz offers more voice call capacity and lower latency than 5 GHz.
- C . The voice client does not support DFS, and therefore experiences some 5 GHz coverage holes as it moves through the network.
- D . The client’s band selection algorithm prefers 5 GHz, but band steering behavior usually steers 75- 85% of client devices to 2.4 GHz.
802.11 collision detection is handled using which technology?
- A . Network allocation vector (NAV).
- B . Clear channel assessment (CCA).
- C . Duration/ID value.
- D . Receiving an ACK from the destination station.
- E . Positive collision detection cannot be determined.
Which wireless topology provides citywide wireless coverage?
- A . WMAN
- B . WLAN
- C . WPAN
- D . WAN
- E . WWAN