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Huawei H12-311_V3.0 Practice Test - Questions Answers, Page 23

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List of questions

Question 221

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To obtain better coverage, try to use AP Signal can ( ) Through the wall.

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Question 222

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exist 1 Floor deployment 3 Piece AP, The channels from left to right are 1,6,11, At this time 2 Floor deployment 3 Piece AP Channel should be be divided into( ).

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Question 223

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The two commonly used units to describe antenna gain are dBi and dBd , The conversion relationship between them is: dBi=dBd+2.14 .

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Question 224

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The omnidirectional antenna appears on the horizontal pattern as ()Spend.

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Question 225

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As a guarantee WLAN There will be no interference between the various channels of the network, which of the following frequency bands belong to China5.8GHz Use frequency band()? (Select 2 Answers)

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Question 226

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The lobe width is a very important parameter commonly used in directional antennas. It refers to the width of the antenna's radiation pattern below the peak (.)dB The angle of the premises

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Question 227

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The gain of the antenna can be explained ().

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Question 228

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Antennas are classified according to directivity and can be divided into () antennas and () antennas.

(Select 2 Answers)

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Question 229

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Metal objects have a greater attenuation effect on wireless signals, AP Or the antenna should not be placed behind a metal ceiling, etc.

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Question 230

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Among the following options, the common WLAN The source of interference is ().

(Select 3 Answers)

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Total 340 questions
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