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Exam Code : H12-311
Exam Name : HCIA-WLAN (Huawei Certified ICT Associate-WLAN)
Vendor Name :
"Huawei"

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H12-311 Dumps

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H12-311 Actual Questions

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Huawei

H12-311

HCIA-WLAN (Huawei Certified ICT Associate-WLAN)

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Question: 140

How many channels can be most divided into by 4 GHz frequency band()?

1. 14

2. 13

3. 11

4. 3

Answer: A

Question: 141

In 20m Mode, how many subcarriers of 802.11a can be used to transfer data()?

1. 48

2. 52

3. 54

4. 56

Answer: A

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

Answer: D

Question: 143

Radio frequency mainly use spread spectrum technology, which of the following technology is belong to spread spectrum technology?

(Select 2 Answers)

1. FHSS

2. DSSS

3. QPSK

4. OFDM

Answer: A B

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()?

1. 0,0

2. 0,1

3. 1,0

4. 1,1

Answer: A

Question: 145

What kind of technology belongs to Wireless MAN in the folllowing()?

1. 2G/3G

2. WLAN

3. Bluetooth

4. WiMAX

Answer: B

Question: 146

How many channels do China support in 2.4 GHz frequency band()?

1. 11

2. 13

3. 3

4. 5

Answer: B

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 。

1. True

2. False

Answer: B

Question: 148

How much bandwidth each 802.11 g frequency band channel()?

1. 25 MHz

2. 20 MHz

3. 50 MHz

4. 22 MHz

Answer: B

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.

1. True

2. False

Answer: B

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

Answer: D

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()?

1. 50%

2. Don’t need to overlap C. 100%

D. 10%-15%

Answer: D

Question: 152

In WLAN, AP has been working in half duplex 。

1. True

2. False

Answer: A

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.

1. True

2. False

Answer: B

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

Answer: A C D

Question: 155

There are three frame types of 802.11 ,respectively() 。

(Select 3 Answers)

1. Data Frame

2. Control Frame

3. Business Frame

4. management frames

Answer: A B D

Question: 156

In the WLAN, ACK frame belongs to what type of frame()?

1. management frames

2. Control Frame

3. Data Frame

4. empty data frame

Answer: B

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