CWNA-108 Online Practice Questions and Answers
You are troubleshooting a client issue on a Windows laptop. The laptop can see and connect to 2.4 GHz APs, but is does not even see 5 GHz APs. While evaluating the issue, you determine that this problem is happening for all of the laptops of this model in the organization. Several other tablets connect on channel 48 and channel 52 in the same work areas. What is the likely problem?
A. The clients are configured to use WPA and 5 GHz channels only support WPA2.
B. The client drivers are faulty and should be upgraded.
C. The antennas in the laptop have insufficient gain to detect the 5 GHz signals.
D. The access points are configured to disallow 5 GHz.
During a post-implementation survey, you have detected a non-802.11 wireless device transmitting in the area used by handheld 802.11g scanners. What is the most important factor in determining the impact of this non-802.11 device?
A. Receive sensitivity
B. Channel occupied
C. Airtime utilization
D. Protocols utilized
You are troubleshooting a controller-based AP that is unable to locate the controller. DHCP is not used and the controller is located at 10.10.10.81/24 while the AP is on the 10.10.16.0/24 network. What should be inspected to verify proper configuration?
A. NTP
B. BOOTH
C. DNS
D. AP hosts file
Which one of the following channels can be used for VHT transmissions?
A. 44
B. 1
C. 7
D. 13
What statement about the beamwidth of an RF antenna is true?
A. Horizontal and vertical beamwidth are calculated at the point where the main lobe decreases power by 3 dB.
B. Vertical beamwidth is displayed (in degrees) on the antenna's Azimuth chart.
C. When antenna gain is lower, the beamwidth is also lower in both the horizontal and vertical dimensions.
D. The beamwidth patterns on an antenna polar chart indicate the point at which the RF signal stops propagating.
You are implementing a multi-AP WLAN and fast secure roaming is essential. Which one of the following methods is an IEEE 802.11 standard method for fast roaming?
A. Band steering
B. FT
C. OKC
D. Load balancing
You are reporting on the RF environment in you facility. The manager asks you do describe the noise floor noted in the report. Which of the following is the best explanation?
A. The energy radiated by flooring materials that causes interference in the 2.4 GHz and 5 GHz bands.
B. The noise caused by elevators, microwave ovens, and video transmitters.
C. The RF energy that exists in the environment from intentional and unintentional RF radiators that forms the baseline above which the Intentional signal of your WLAN must exist.
D. The extra energy radiated by access points and client devices beyond that intended for the signal.
What common feature of MDM solutions can be used to protect enterprise data on mobile devices?
A. Over-the-air registration
B. Onboarding
C. Containerization
D. Self-registration
What common feature of MDM solutions can be used to protect enterprise data on mobile devices?
A. Over-the-air registration
B. Onboarding
C. Containerization
D. Self-registration
When an ACK frame is not received by the transmitting STA, what is assumed?
A. The frame was correctly delivered
B. The frame was not delivered and must be retransmitted
C. The receiver is offline
D. The receiver processed the frame, but did not respond with an ACK frame because 802.11w is enabled