H12-311 Dumps
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H12-311 Actual Questions
HCIA-WLAN (Huawei Certified ICT Associate-WLAN)
https://killexams.com/pass4sure/exam-detail/H12-311
Question: 140
How many channels can be most divided into by 4 GHz frequency band()?
14
13
11
3
Question: 141
In 20m Mode, how many subcarriers of 802.11a can be used to transfer data()?
48
52
54
56
Question: 142
Which protocol can support both 2.4 GHz frequency band and 5 GHz frequency band()? A. 802.11a
B. 802.11b C. 802.11g D. 802.11n
Question: 143
Radio frequency mainly use spread spectrum technology, which of the following technology is belong to spread spectrum technology?
(Select 2 Answers)
FHSS
DSSS
QPSK
OFDM
Question: 144
In the frame of 802.11, when Network employs WDS Model to improve the signal, what are the values of To DS and From Ds()?
0,0
0,1
1,0
1,1
Question: 145
What kind of technology belongs to Wireless MAN in the folllowing()?
2G/3G
WLAN
Bluetooth
WiMAX
Question: 146
How many channels do China support in 2.4 GHz frequency band()?
11
13
3
5
Question: 147
WDS technique improves the flexibility and convenience of the whole network structure, but can only support the working mode of point to point 。
True
False
Question: 148
How much bandwidth each 802.11 g frequency band channel()?
25 MHz
20 MHz
50 MHz
22 MHz
Question: 149
Because the maximum support rate of 802.11a is the same as 802.11g, so the protocol of 802.11a is backwards compatible with 802.11g protocol.
True
False
Question: 150
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
Question: 151
If AP Client which connect the same SSID want to surf from one AP to another AP, so the overlapping area between two AP signal()?
50%
Don’t need to overlap C. 100%
D. 10%-15%
Question: 152
In WLAN, AP has been working in half duplex 。
True
False
Question: 153
One company want to deploy WLAN, and this company purchase a batch of wireless AP that support 802.11n , when WLAN deployed, can only support 802.11n wireless client can connect to the WLAN.
True
False
Question: 154
What are the WALN standard which the the transmission rate can reach more than 54 MBPS()? (Select 3 Answers)
A. 802.11a
B. 802.11b C. 802.11g D. 802.11n
Question: 155
There are three frame types of 802.11 ,respectively() 。
(Select 3 Answers)
Data Frame
Control Frame
Business Frame
management frames
Question: 156
In the WLAN, ACK frame belongs to what type of frame()?
management frames
Control Frame
Data Frame
empty data frame
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