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H12-311_V3.0 Huawei HCIA-WLAN V3.0 Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Huawei H12-311_V3.0 HCIA-WLAN V3.0 certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 338 questions

The AirEngine 5760-22W can be used as a wall plate AP or a remote unit (RU) in Huawei's Agile Distributed Wi-Fi Solution.

A.

True

B.

False

The MEth0/0/1 interface of AC6605 is used for in-band network management. The default address is: 192.168.1.1/24, and it cannot be modified.

A.

True

B.

False

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

A.

True

B.

False

802.11n exist 20M How many sub-carriers can be used to transmit data in the mode ()?

A.

48

B.

52

C.

54

D.

56

How to set the condition of switching trigger (). (Select 2 Answers)

A.

when STA Yohara AP Start switching after reaching a certain distance

B.

Set current AP With neighbors AP Signal strength ratio, switch when reaching the threshold

C.

Check the packet loss rate and start the handover when the packet loss rate reaches a certain value

D.

Yohara AP Start the switch when the network speed is very slow during association

AP What factors are related to the coverage (). (Select 3 Answers)

A.

AP Transmit power

B.

Antenna gain

C.

AP Size

D.

Transmission loss

Which of the following statements is correct ()?

(Select 2 Answers)

A.

When the user performs web authentication, it is triggered by the user's http message before the IP address is successfully obtained; at this time, it is forcibly redirected to the portal server,

Go through the certification process

B.

When the user performs web authentication, it is triggered by the user's http message after successfully obtaining the IP address; at this time, it is forcibly redirected to the portal server,

Go through the certification process

C.

WPA2 uses 802.1X authentication

D.

WPA only supports TKIP, an encryption technology

AC6605 supports three ways to establish AP and AC intercommunication, what are the differences ()?

(Select 3 Answers)

A.

Add AP offline

B.

Automatically discover the AP and go online normally

C.

Automatically discover AP and confirm to go online

D.

Find APs through multicast and go online automatically

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

(Select 2 Answers)

A.

Plate

B.

paraboloid

C.

Omnidirectional

D.

Orientation

Which of the following are AP Factors to consider in capacity planning ().

(Select 3 Answers)

A.

Equipment performance

B.

Number of concurrent users

C.

Bandwidth requirement

D.

Power supply type

about 5G The working principle of priority, the following statement is correct ().

A.

5G Priority characteristics refer to 5G Client sends data first

B.

5G After the priority is turned on, only support 2.4G The network transmission speed of the client will be slower

C.

5G Priority request AP Is dual frequency AP Can work normally

D.

5G Priority requires all clients to support at the same time

For the polarization of electromagnetic waves, which of the following descriptions is correct is (). (Select 3 Answers)

A.

The antenna radiates electromagnetic waves to the surrounding space

B.

The polarization of the antenna refers to the direction of the magnetic field strength formed when the antenna radiates

, The direction of the electric field changes according to a certain rule

C.

If the electric field direction of the electric wave is perpendicular to the ground, we call it a vertically polarized wave

D.

If the transmitting antenna is circularly polarized, the receiving antenna must also be circularly polarized, and the polarization direction of the two must be the same.

802.11 In the frame, STA Which type of frame () does the association request and authentication request belong to?

A.

Data Frame

B.

Control frame

C.

Management frame

D.

Data frame, control frame, management frame have this function

802.11 In the frame, Address Which address bit represents the address of the receiving end of the frame ()?

A.

Address 1

B.

Address 2

C.

Address 3

D.

Address 4

Among the following options, () is the reason for using 5G priority access.

A.

It is easier to make network planning in the 5G frequency band

B.

5G frequency band can provide better access capability and capacity

C.

The connection speed between users and APs in the 5G frequency band is very fast

D.

The transmission rate of the 5G frequency band is higher than that of the 2.4G frequency band

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

A.

True

B.

False

Which modulation method is the picture below ()?

A.

AM

B.

FM

C.

phase modulation

D.

Wave modulation

Which of the following options belong EDCA Parameters? (Select 2 Answers)

A.

AIFSN

B.

SIFS

C.

DIFS

D.

TXOPLimit

In order to facilitate management and maintenance, AP The power supply mode is generally preferred to select () for power supply.

A.

Independent power adapter

B.

POE switch

C.

POE adapter

D.

AC power supply

In China, legally supported WLAN The frequency band has ().

(Select 2 Answers)

A.

2.4-2.4835GHz

B.

5.15-5.25GHz

C.

5.25-5.35GHz

D.

5.725-5.850GHz

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Total 338 questions
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