While an access point is operating in Distributed Coordination Function (DCF) mode, which of the following is true? (Choose two)
Answer(s): A,D
According to the study guide, when the access point is in DCF mode, it contends for the medium along with other stations. Thus no QoS is guaranteed and Voice and Video are not supported.
Which two functions can be configured on a WLAN client computer as part of the WLAN client utility software?
Answer(s): B,D
Certified Wireless Network Administrator Study Guide, Page 91
Which of the following household appliances are likely sources of interference in the 2.4 GHz band?
Answer(s): A
Certified Wireless Network Administrator Study Guide, page 335
The 802.11a standard specifies what number of non-overlapping channels across all 5 GHz UNII bands combined?
Answer(s): B
According to the study guide, each of the 3 bands in the 5 GHz UNII band (lower, middle, upper) contain 4 non-overlapping channels. The question ask the number of such channels "combined". That would be B (12)
HomeRF is more secure than 802.11b because?
Certified Wireless Network Administrator Study Guide, page 164
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