CWNA-107 Free Practice Test

When an ACK frame is not received by the transmitting STA, what is assumed?

1. A. The frame was correctly delivered
2. B. The frame was not delivered and must be retransmitted
3. C. The receiver is offline
4. D. The receiver processed the frame, but did not respond with an ACK frame because 802.11w is enabled

Correct Answer: B

You are planning for PoE in a standard office deployment. Which one of these devices is least likely to be a PoE PD?

1. A. Video camera
2. B. Access point
3. C. VoIP phone
4. D. Ethernet switch

Correct Answer: A

What non-standard WLAN solution attempts to give a longer transmission windows to devices with higher data rates then devise with lower data rates?

1. A. AirTime Fairness
2. B. Band Steering
3. C. ARM
4. D. RRM

Correct Answer: A

You are attempting to explain RF shadow and how it can cause lack of coverage. What common building item frequently causes RF shadow and must be accounted for in coverage plans?

1. A. Wooden doors
2. B. Carpeted floors
3. C. Elevators
4. D. Cubicle partitions

Correct Answer: D

What statement about the IEEE 802.11-2016 QoS facility is true?

1. A. 802.11 QoS is achieved by giving high priority queues a statistical advantage at winning contention.
2. B. Four 802.1p user priorities are mapped to eight 802.11 transmit queues.
3. C. 802.11 control frames are assigned to the 802.11 EF priority queue.
4. D. When the Voice queue has frames awaiting transmission, no data will be transmitted from the Best Effort queue.

Correct Answer: A