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H12-322 Questions and Answers

Question # 6

In the process of AC dual link building, what information does the AP organize?

A.

AC IP address

B.

AC active and standby priority

C.

AC dual link feature switch

D.

AC MAC address

E.

AC model

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Question # 7

The penetration loss of the following typical obstacles is the correct order from small to large?

A.

12cm brick wall < 24cm brick wall < glass window < metal

B.

12cm brick wall < 24cm brick wall < metal < glass window

C.

Glass window < 12cm brick wall < 24cm brick wall < metal

D.

Glass window < 12cm brick wall < metal < 24cm brick wall

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Question # 8

Which layer of the wireless AP is generally connected to the network?

A.

Access layer

B.

Convergence layer

C.

Transport layer

D.

Core layer

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Question # 9

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

A.

WLAN Planner

B.

WLAN Tester

C.

Mobile phone

D.

Telescope

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Question # 10

What is the purpose of using the WLAN Tester 2.0 tool to conduct a survey in the early stage of the project?

A.

Understand signal coverage

B.

Understanding signal interference

C.

Understand the shortcomings of the current network environment

D.

Perform network verification

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Question # 11

A WLAN campus network adopts the independent AC (ACU2/AC6605/AC6005) deployment mode. This method does not support the following reliability methods. case?

A.

VRRP hot standby solution

B.

Dual-link cold standby solution

C.

Dual-link hot standby solution

D.

Stacking hot standby solution

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Question # 12

Which of the following functions can the WLAN Planner accomplish?

A.

Automatically deploy AP

B.

View field strength simulation diagram

C.

Outdoor bridge planning

D.

On-site signal scanning

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Question # 13

What are the advantages of PoE switches compared to PoE power injectors?

A.

PoE switches are low cost

B.

Remotely manage PoE ports

C.

No additional power cord required

D.

Can be managed centrally

E.

UPS equipment is no longer needed

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Question # 14

Which of the following antennas is recommended for the AP9330DN in a WLAN scenario where the room is large and the capacity is high?

A.

Single-flow single-frequency omnidirectional antenna

B.

Single-current dual-frequency omnidirectional antenna

C.

Dual-current single-frequency directional antenna

D.

Dual-stream dual-frequency directional antenna

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Question # 15

In a WDS scenario, how many Leaf APs can a Fire AP associate with without considering bandwidth?

A.

3

B.

6

C.

15

D.

32

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Question # 16

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

A.

3

B.

4

C.

5

D.

6

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Question # 17

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.

A.

True

B.

False

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Question # 18

Which of the following options are characteristic of the business needs of high-density venues?

A.

Multiple types of business access control

B.

There are many user terminals, and the types are concentrated.

C.

Users only connect in a certain area, no need to consider roaming

D.

Large number of user registration management, centralized user authentication

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Question # 19

What is wrong about the dual link backup description below?

A.

The process of establishing the primary CAPWAP tunnel after the dual-link backup function is configured is the same as that of the normal CAPWAP tunnel.

B.

If the dual-link active/standby configuration is configured with the dual-link active/standby configuration, the AP will preferentially select the dual-link active/standby configuration.

C.

Dual-link cold standby is compared to hot standby. After detecting the failure of the primary CAPWAP tunnel, the backup CAPWAP tunnel is established to implement services. Break forwarding

D.

Dual-link hot backup is relative to cold standby. The CAPWAP tunnel fault detection is performed between the active and standby ACs, and the HSB channel synchronizes the status information in real time.

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Question # 20

In the WLAN site survey, what is the correct statement about the need to confirm the AP installation location and related equipment installation in the coverage scenario?

A.

If the weak well location is too far from the AP installation location, the switch cannot be installed.

B.

Indoor needs to confirm AP and room sub-antenna installation location, AP installation methods, such as wall hanging, ceiling, ceiling, etc.

C.

Confirm the data center location, that is, the total aggregation point. Generally, AC, network management, and various servers are placed here.

D.

Outdoor need to confirm the AP and outdoor antenna installation position, whether you need to hold the pole

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Question # 21

When measuring the obstacle attenuation in the WLAN site survey, the signal source needs to be placed in a proper position so that there is no obstruction between the obstacle and the obstacle to be tested.

Block and keep a certain distance. Because the field strength is very large near the signal source, the test will be inaccurate.

A.

True

B.

False

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Question # 22

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

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.

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Question # 23

For WLAN outdoor coverage planning, what is the recommended coverage radius when using an external 2.4G 3dBi omnidirectional antenna?

A.

30~50 meters

B.

80~100 meters

C.

150~200 meters

D.

200~250 meters

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Question # 24

In any country, the use of directional antennas can significantly increase the coverage area of ​​the WLAN.

A.

True

B.

False

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Question # 25

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

A.

open

B.

psk

C.

portal

D.

802.1x

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Question # 26

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?

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.

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Question # 27

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?

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

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Question # 28

What is the time interval of Short GI?

A.

100ns

B.

200ns

C.

400ns

D.

800ns

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Question # 29

Which of the following is the highest security strength of the encryption algorithm?

A.

WEP

B.

TKIP

C.

CCMP

D.

DES

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Question # 30

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

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.

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Question # 31

The indoor panel AP layout design must be configured with 86 boxes for installation.

A.

True

B.

Falses

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Question # 32

A company deploys an outdoor WLAN. The AP device is Huawei's outdoor AP6510DN. In order to save costs, engineers plan to pass AC6605

Powering the AP directly. The AC6605 only has a 500 W PoE power module. The AC6605 requires 120 W for normal operation.

Rate, then how many AP6510DN can the AC6605 supply?

A.

4

B.

12

C.

20

D.

24

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Question # 33

What is the correct description of the WLAN site survey for different typical scenarios?

A.

The office surveys the main load-bearing columns and partitions to cover the impact. If it is an overall suspended ceiling, the AP should be considered as close to the maintenance port, if it is metal

Ceiling, you can choose to place the AP under the ceiling or wall mount

B.

If the wall of the school classroom is made of reinforced concrete, the signal attenuation is large. It is best to measure the attenuation when surveying. The teaching building should pay attention to the weak electricity room.

Set

C.

The ward inspection scene has high requirements for coverage field strength, roaming effect, and bandwidth requirements. At the same time, it is necessary to pay attention to the interference or disallow of medical equipment.

Area with Wi-Fi signal

D.

The stadium has a complicated environment and difficult wiring. Therefore, the weak house and the wiring should be confirmed with the property. If the distance is too far, it may be considered.

Adding an external switch, the survey should focus on mutual interference and installation methods between APs.

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Question # 34

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

A.

1 channel

B.

6 channels

C.

11 channels

D.

14 channels

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Question # 35

The following APs for indoor placement scenarios have (AB), APs with indoor distribution scenarios have (C), and APs with outdoor coverage/bridge backhaul scenarios have?

A.

AP 6010DN

B.

AP 7110DN

C.

AP 6310SN

D.

AP 6510DN

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Question # 36

Monitor AP planning and design that needs to consider enhanced security in the WLAN network rules of the financial industry

A.

True

B.

False

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Question # 37

Which of the following technologies can be used in a WLAN high-density deployment scenario?

A.

Turn on 2.4G and 5G dual frequency

B.

Increase AP transmit power

C.

Turn on pure N mode

D.

Turn on the signal threshold access

E.

Using room divider antenna

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Question # 38

The WLAN high-density venue business can achieve 100% concurrent users under a good experience.

A.

True

B.

False

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Question # 39

Which of the following two scenarios does the WLAN room sub-plan apply to?

A.

Office coverage, high concurrency, medium density

B.

Concert hall coverage, low concurrency, high density

C.

ward inspection, no bandwidth requirements, need good coverage

D.

Hotel rooms are covered, the rooms are small and dense, and there are certain requirements for coverage area and field strength.

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Question # 40

The following is not the design of the rail transit redundancy business?

A.

Car wireless link redundancy

B.

CBTC deployment dual wireless network

C.

PIS car communication double network

D.

Using the 802.11n protocol

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Question # 41

Which AP is shown in the figure below?

A.

AP2010DN indoor panel AP

B.

AP6010DN indoor placement AP

C.

AP6310DN indoor distributed AP

D.

AP6510DN outdoor AP

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Question # 42

In the wireless high-density access scenario, what are the main technical points used?

A.

Using room divider antenna

B.

Automatic packet-by-packet power control

C.

Low speed users limit access

D.

5G frequency band priority access

E.

Maximize AP transmit power

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