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  4. H12-322 - Huawei Certified ICT Professional - Wireless Local Area Network- Planning and Optimizing Enterprise WLAN

Huawei H12-322 Huawei Certified ICT Professional - Wireless Local Area Network- Planning and Optimizing Enterprise WLAN Exam Practice Test

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Huawei Certified ICT Professional - Wireless Local Area Network- Planning and Optimizing Enterprise WLAN Questions and Answers

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Question 1

Which of the following is the correct description of the steps for working with the WLAN Tester 2.0 tool?

Options:

A.

New Project -> Import Drawing -> Set Scale -> Load NIC -> Start -> Dot -> End

B.

New Project -> Import Drawing -> Load NIC -> Set Scale -> Start -> Dot -> End

C.

New Project -> Import Drawing -> Set Scale -> Start -> Dot -> End

D.

New Project -> Set Scale -> Import Drawing -> Load NIC -> Start -> End

Question 2

Which AP is shown in the figure below?

Options:

A.

AP2010DN indoor panel AP

B.

AP6010DN indoor placement AP

C.

AP6310DN indoor distributed AP

D.

AP6510DN outdoor AP

Question 3

Xiao Zhang is the network administrator of a hotel. One day he found that the hotel's visitors could not access the network normally. After checking, the visitor's equipment was wrong.

Incorrect IP address, in order to prevent this kind of attack, which of the following technologies should be used in the network?

Options:

A.

DHCP Snooping

B.

Dynamic ARP Detection (DAI)

C.

IP Source Protection (IPSG)

D.

MAC certification

Question 4

In the WLAN coverage, the accuracy of wireless positioning is closely related to AP signal coverage.

Options:

A.

True

B.

False

Question 5

Which of the following wireless applications has higher bandwidth and real-time requirements?

Options:

A.

Mobile office

B.

Wireless medical

C.

Rail transit

D.

Video return

Question 6

What is the correct statement about the site survey of the indoor coverage scene coverage area?

Options:

A.

Identify the bandwidth requirements for each area, bandwidth requirements = total users × bandwidth per user bandwidth

B.

Identify coverage field strength and edge field strength requirements for each area

C.

Identify the type of access terminal and the frequency band used in the area

D.

Focus on the area information to be covered during the survey, other areas can be ignored

Question 7

The following is a preliminary description of the preliminary planning before the survey?

Options:

A.

For indoor coverage scenarios, preliminary planning of the number and location of APs can be based on customer needs and drawings.

B.

When planning the initial planning, pay attention to the unclear part of the information, mark it, and pay attention to the site survey.

C.

Preliminary planning of the outdoor bridge, you can use Google Earth to mark the location and bridge path to initially evaluate the feasibility.

D.

Preliminary planning of outdoor bridges, focusing on the distance between stations, altitude occlusion, etc.

Question 8

In the coverage area, only the area where the field strength is required is selected (B), and the area with the specified number of bandwidth requirements is selected (A), and there is no concern whether there is a signal. Area selection?

Options:

A.

Key coverage areas

B.

Ordinary coverage area

C.

Blind area

Question 9

The following description of the steps for Layer 2 roaming is wrong?

Options:

A.

The STA listens to each channel beacon and finds that AP2 satisfies the roaming condition and sends a probe request to AP2.

B.

AP2 responds by sending a response on channel 6 after receiving the request in channel 6 (the channel used by AP2)

C.

The STA sends the 802.11 disassociation information to the AP1 through the channel 6 (the channel used by the AP2), and the association between the user and the AP1 is released.

D.

The STA sends an association request to AP2 through channel 6, and AP2 responds with the association response to establish an association between the user and AP2.

Question 10

The user traffic of an enterprise WLAN is not very large, and there is no traffic bottleneck in the network. For WLAN security, the customer wants to manage it in a unified manner.

For WLAN data, which of the following networking methods can customers choose?

Options:

A.

AC bystander data is directly forwarded

B.

AC bypass data tunnel forwarding

C.

Direct forwarding of Layer 3 networking data

D.

Layer 2 networking data direct forwarding

Question 11

What is the default priority of VRRP?

Options:

A.

1

B.

0

C.

100

D.

255

Question 12

In the ACU2 solution of an independent AC board of a WLAN campus network project, the switch where the board is located and the ACU2 board are logically two independent networks.

Yuan, that is, an independent management device.

Options:

A.

True

B.

False

Question 13

How many mw can 17dBm be converted into?

Options:

A.

100

B.

80

C.

50

D.

40

Question 14

As shown in the figure below, what is the best channel for the AP in the lower left corner?

Options:

A.

1 channel

B.

6 channels

C.

11 channels

D.

14 channels

Question 15

After the CAPWAP is disconnected, the AP allows the new user access function to support the following authentication methods?

Options:

A.

Web Portal authentication

B.

Shared key authentication

C.

802.1x certification

D.

WPA/WPA2-PSK certification

Question 16

Directional antennas have a stronger gain in signal strength in horizontal and vertical lobes, and no signal outside the lobes. So it is recommended to use high gain

Directional antennas to increase outdoor AP coverage distance.

Options:

A.

True

B.

False

Question 17

In an Mesh network, is the AP connected to the AC through a wire called?

Options:

A.

MP ( Mesh Point)

B.

MAP (Mesh Access Point)

C.

MPP ( Mesh Portal Point)

D.

Root AP

Question 18

What are the advantages of Mesh deployment compared to WDS deployment?

Options:

A.

Mesh deployment equipment costs less

B.

Mesh supports redundant links

C.

Mesh network can be deployed quickly and can dynamically increase network coverage

D.

All APs in Huawei support Mesh features.

Question 19

How many dB of directional antenna attenuation is the main lobe width of the phenomenon?

Options:

A.

3

B.

4

C.

5

D.

6

Question 20

Which of the following two tools are needed to measure the attenuation value of an obstacle?

Options:

A.

Surveying tools ------ tape measure, range finder

B.

Observation record ------ telescope, camera

C.

Signal source ------- fat AP

D.

Signal scanning ------ laptop

Question 21

The following is the correct description of the AC deployment method?

Options:

A.

AC deployment can be divided into two types: side-by-side deployment and direct-attached deployment.

B.

The side-by-side networking is a superposition of the existing network. It has fewer modifications to the existing network and is quick and convenient to deploy. In addition, according to the control requirements for wireless users,

Choose direct forwarding or tunnel forwarding mode according to your needs

C.

In the direct connection network deployment mode, because the AC is connected in series in the network, the management data and user data between the AP and the AC must pass.

CAPWAP tunnel forwards

D.

Direct connection networking is mainly used in large campus network scenarios. The AP size in the network is recommended to be 1000 or more.

Question 22

When using the WLAN Tester 2.0 tool, the dot speed is preferably controlled from 0.8m/s to 1.2m/s. What is the correct statement about the dot speed?

Options:

A.

The speed is too fast, the heat map is not accurate, and the heat map abnormality may occur.

B.

The speed is too slow, the amount of sampled data is too large, and the heat map calculation time is lengthened.

C.

Signal collection is a process that takes enough time to save

D.

This is to ensure that the normal walking speed of ordinary people is consistent.

Question 23

In an outdoor wireless coverage scenario of a WLAN, the AP6510DN is used to cover the external antenna, and the throughput of the wireless terminal is maintained at a low value.

What are the reasons for the results?

Options:

A.

Test terminal to support 802.11ac

B.

Interference causes a drop in throughput

C.

RSSI is too low, the link speed is low

D.

Flow rate limit configurationd

Question 24

When WLAN design outdoor network regulations, it is necessary to consider the coverage according to the EIRP limit of each country. In the case of considering MIMO gain, the following

Which option is the calculation method for EIRP?

Options:

A.

AP transmit power + antenna gain - feeder attenuation

B.

AP transmit power - antenna gain - feeder attenuation

C.

AP transmit power - MIMO gain + antenna gain - feeder attenuation

D.

AP transmit power + MIMO gain + antenna gain - feeder attenuation

Question 25

Which of the following PoE powering solutions can power the AP?

Options:

A.

PoE powering the AP through the PoE switch

B.

PoE powering the AP through AC6005-8

C.

PoE powering the AP through the A feeder

D.

Powering the AP through the PoE power injector

Question 26

In some special environments, more APs need to be used, and the channels cannot be completely separated. Therefore, you can consider reducing the transmit power of the AP to reduce the letter.

Interference between the numbers.

Options:

A.

True

B.

False

Question 27

Which of the following authentication methods requires the user to open a web page for authentication?

Options:

A.

open

B.

psk

C.

portal

D.

802.1x

Question 28

In the direct forwarding mode of the bypass network, what are the descriptions of the following WLAN HA technologies?

Options:

A.

The CAPWAP link-off service maintenance feature enables online users to forward data packets when an AC fault occurs.

B.

After the CAPWAP is broken, the AP allows the new user access feature to also be enabled in the tunnel forwarding mode.

C.

AC dual-link cold backup feature can achieve 50ms carrier-class protection switching

D.

HSB+VRRP dual-system hot backup can implement two high-reliability mechanisms: active/standby mode and load-sharing mode.

Question 29

The following is true about the WLAN side-by-side networking.

Options:

A.

The hangover network can perform WLAN deployment without modifying the physical topology of the live network, which facilitates network transformation.

B.

When the network is bypassed, the AC can no longer bear the gateway of the service WLAN.

C.

Using the “side-by-side networking + direct forwarding” network architecture can reduce the burden on the AC and improve network forwarding performance.

D.

When the network is connected to the network, the AC can be connected to the aggregation layer or the core layer switch, but it must be the same network segment as the AP.

Question 30

Which of the following options are typical WLAN indoor-mounted coverage scenarios?

Options:

A.

University classroom wireless coverage

B.

Office building wireless coverage

C.

University dormitory wireless coverage

D.

Hotel WOC wireless coverage

Question 31

What are the calculations for implementing controller hot backup?

Options:

A.

Dual link backup

B.

HSB+ dual link backup

C.

HSB+VRRP

D.

5G priority access

Question 32

Which of the following functions is not a function of Huawei WLAN Planning Tool?

Options:

A.

AP calculator

B.

AP positioning

C.

WLAN signal simulation

D.

Export the bill of materials

Question 33

In the 3-hop co-frequency chain Mesh, assuming that the throughput of the MPP is 60 Mbps and the throughput under each MP is the same, the throughput of each MP is

How many?

Options:

A.

5Mbps

B.

10Mbps

C.

15Mbps

D.

20Mbps

Question 34

What is the correct description of PoE power supply below?

Options:

A.

PoE power supply refers to powering the AP through the AC adapter.

B.

If you use PoE adapter to supply power, just ensure that the cable between the PoE adapter and the AP does not exceed 80 meters.

C.

AP6610DN is preferably powered by PoE mode.

D.

If the PoE power supply meets the 802.3at standard, the power supply of each power supply port can reach 30W.

Question 35

The wireless forwarding capabilities of the following devices range from low to high. What is the correct ordering?

Options:

A.

ACU2 < AC6005 < AC6605

B.

AC6605 < AC6005 < ACU2

C.

AC6005 < AC6605 < ACU2

D.

AC6005 < AC6605 = ACU2

Question 36

Which of the following tools can an engineer use when planning a WLAN network?

Options:

A.

WLAN Planner

B.

WLAN Tester

C.

Mobile phone

D.

Telescope

Question 37

Which of the following statements about directional antennas and omnidirectional antennas is correct?

Options:

A.

Omnidirectional antennas are easier to plan than directional antennas

B.

Try to use omnidirectional antennas for planning

C.

Suitable areas for directional antennas such as pedestrian streets

D.

omnidirectional antenna is preferred when the coverage distance is long

Question 38

Which of the following outdoor APs supports dual 5G deployment scenarios?

Options:

A.

AP6510DN

B.

AP8030DN

C.

AP8130DN

D.

AP9430DN

Question 39

Which of the following authentication methods has the longest roaming time?

Options:

A.

OPEN

B.

802.1x certification

C.

WEP+PSK

D.

Portal

Question 40

The directional antenna can not only improve the signal strength of the downlink AP, but also improve the signal strength of the uplink terminal received by the AP.

Options:

A.

True

B.

False

Question 41

Without considering the MIMO gain, what is the correct description about EIRP?

Options:

A.

In wireless communication engineering, EIRP is commonly used to measure the strength of interference and the ability of the transmitter to transmit strong signals.

B.

The product of the power supplied by the EIRP to the antenna of the radio transmitter and the absolute gain of the antenna in a given direction

C.

EIRP represents the transmit power of the AP

D.

EIRP=P transmit power-Loss feeder loss + G antenna gain

Question 42

In the backhaul scenario where the AP6510DN is connected to the AT815SN in point-to-point, the return distance is about 100m. The six AT815SNs are distributed in a length of 60 meters and wide.

Within 60 meters, the equipment is installed at the same height and has a line of sight.

When the upstream bandwidth requires 10 Mbps and there is no EIRP limit, which of the following antennas can be selected?

Options:

A.

5G_19dBi_H15 degrees _V15 degrees

B.

5G_17dBi_H65 degrees _V7.5 degrees

C.

5G_16dBi_H100 degrees _V5.5 degrees

D.

5G_28dBi_H5 degrees _V5 degrees

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