Practice Free CWNA-109 Exam Online Questions
Which data rate is supported by 802.11g radios that is not supported by 802.11a radios?
- A . 9 Mbps
- B . 11 Mbps
- C . 12 Mbps
- D . 54 Mbps
- E . 65 Mbps
- F . 130 Mbps
Which of these frequencies has the longest wavelength?
- A . 750 KHz
- B . 2.4 GHz
- C . 252 GHz
- D . 2.4 MHz
Physical carrier sense uses which two thresholds during the clear channel assessment to determine if the medium is busy?
- A . RF detect
- B . Signal detect
- C . Transmission detect
- D . Energy detect
- E . Random detect
What is another name for an 802.11 data frame that is also known as a PSDU?
- A . PPDU
- B . MSDU
- C . MPDU
- D . BPDU
The second channel width that was introduced with 802.11ac is a ________ MHz channel.
- A . 80
- B . 40
- C . 160
- D . 360
What is the main cause of co-channel interference?
- A . Microwave interference on the same channel within hearing range
- B . APs on the same channel within hearing range
- C . APs on a different channel within hearing range
- D . Clients on the same channel within hearing range
- E . Clients on a different channel within hearing range
An employee has enrolled a personal device with an MDM server over the corporate WLAN. The employee removes the MDM profile while at home.
What will happen with the employee’s personal device the next time the employee tries to connect to the company SSID?
- A . The MDM server will reprovision the MDM profile over the air.
- B . The push notification service will reprovision the MDM profile over the air.
- C . The device will be quarantined in the walled garden and will have to re-enroll.
- D . The device will be free to access all resources because the certificate is still on the mobile device.
In a single channel architecture (SCA) WLAN system, 802.11n (HT) APs should not share an SSID with 802.11g (ERP) APs.
What is the reason for this recommendation?
- A . Client stations would see two different sets of AP capabilities as they roam between APs with the same BSSID.
- B . The added range of 802.11n APs would cause additional co-channel interference.
- C . The additional beacon material in 802.11n beacons would confuse 802.11b/g client stations.
- D . Beacons from 802.11n APs use 40 MHz channels, while beacons from 802.11g APs use 20 MHz channels.
In the U-NII-1 band, what is the center frequency of channel 40?
- A . 5.2 GHz
- B . 5.4 GHz
- C . 5.8 GHz
- D . 5.140 GHz
The most common technologies in WPANs are ________ and _______ . (Choose two)
- A . Bluetooth
- B . Cellular
- C . Infrared
- D . WiMAX