H12-311 Dumps H12-311 Braindumps H12-311 Real Questions H12-311 Practice Test H12-311 Actual Questions Huawei H12-311 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()? A. 14 B. 13 C. 11 D. 3 Answer: A Question: 141 In 20m Mode, how many subcarriers of 802.11a can be used to transfer data()? A. 48 B. 52 C. 54 D. 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) A. FHSS B. DSSS C. QPSK D. 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()? A. 0,0 B. 0,1 C. 1,0 D. 1,1 Answer: A Question: 145 What kind of technology belongs to Wireless MAN in the folllowing()? A. 2G/3G B. WLAN C. Bluetooth D. WiMAX Answer: B Question: 146 How many channels do China support in 2.4 GHz frequency band()? A. 11 B. 13 C. 3 D. 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 ? A. True B. False Answer: B Question: 148 How much bandwidth each 802.11 g frequency band channel()? A. 25 MHz B. 20 MHz C. 50 MHz D. 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. A. True B. 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()? A. 50% B. Don’t need to overlap C. 100% D. 10%-15% Answer: D Question: 152 In WLAN, AP has been working in half duplex ? A. True B. 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. A. True B. 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) A. Data Frame B. Control Frame C. Business Frame D. management frames Answer: A B D Question: 156 In the WLAN, ACK frame belongs to what type of frame()? A. management frames B. Control Frame C. 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