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1.Which period of time does preliminary application of wireless networks begin?
A.During the First World War
B.During World War II
C.In the late 20th century
D.After 2000
Answer: B
2.IEEE is the standards organization responsible for United States radio frequency use.
A.True
B.False
Answer: B
3.Which of the following standards organization for the WLAN device is certified to achieve interoperability
of WLAN technology（）?
A.WiFi Alliance
B.IEEE
C.IETF
D.FCC
Answer: A
4.Which of the following protocol is set by IEEE 802.11 standard（）?
(Select 3 Answers)
A.802.11a/b/g/n
B.802.11i
C.802.1X
D.802.11s
Answer: A B D
5.Which of the following standard is set by WiFi Alliance（）?
(Select 2 Answers)
A.802.11a/b/g/n
B.WPA
C.WPA2
D.802.11i
Answer: B C
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