100% Free Huawei H12-311_V3.0 Practice Test Questions and Answers 2026

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Total 341 Questions | Updated On: May 21, 2026

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Question 1

For the lobe width, which of the following descriptions is correct is (). (Select 3 Answers)

A : Within the range of the main lobe, the power density relative to the maximum radiation direction is reduced by half (3dB) Angle

B : The narrower the lobe width, the better the directivity, the longer the radiation distance, the stronger the anti-interference ability

C : The pattern usually has two or more lobes

D : Only within the coverage of the half power angle, the terminal can receive the signal

Answer: A,B,C

Question 2

Which of the following types of frames does a STA send to obtain surrounding wireless network information during active scanning?

A : Association Request frame

B : Beacon frame

C : Authentication Request frame

D : Probe Request frame

Answer: D

Question 3

The following () service model can provide end-to-end QoS services, but the scalability is not good.

A : Best Effort model

B : IntServ model

C : FIFO model

D : DiffServ model

Answer: B

Question 4

Which of the following options are 802.11b/g What are the differences between the agreements? (Select 3 Answers)

A : Different throughput

B : The two protocols use different technologies

C : Different supported data rates

D : Working frequency is different

Answer: A,B,C

Question 5

Which of the following 802.11 control frames is sent by a STA to acquire the right to the wireless medium?

A : CTS

B : RTS

C : ACK

D : PS-Poll

Answer: B

Page: 1 / 69

Total 341 Questions | Updated On: May 21, 2026

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