H12-311-ENU HCNA-WLAN exam dumps

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H12-311-ENU HCNA-WLAN exam dumps
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Huawei Certified Network Associate–Wireless Local
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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
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3.Which of the following standards organization for the WLAN device i s certified
to achieve interoperability of WLAN technology （ ） ?
A. WiFi Alliance
B.IEEE
C.IETF
D.FCC
Answer: A
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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
6.CAPWAP protocol is proposed as a WLAN standard by IEEE standard
organization in April 2009, used for comm unication between the AC and the AP 。
A. True
B. False
Answer: B
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7.The following protocols which support 2.4 GHz frequency band （ ） ?
(Select 3 Answers)
A.802.11a
B.802.11b
C.802.11g
D.802.11n
Answer: B C D
8.How many channels do China support in 2.4 GHz fre quency band（ ） ?
A.11
B.13
C.3
D.5
Answer: B
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9.In the following options which frequency band range belong to China
supported 5 GHZ frequency band（ ） ?
A.5.15~5.25GHz
B.5.25~5.35GHz
C.5.725~5.825GHz
D.5.725~5.850GHz
Answer: D
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10.According to the different parameters of the control signal, what can be
divided into by modulation mode（ ） ?
(Select 3 Answers)
A.AM
B.FM
C.PM
D.SM
Answer: A B C
11.Which kinds of modulation mode does below figure belong to （ ） ?
A.AM
B.FM
C.PM
D.SM
Answer: B
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