Test Online H12-323_V2.0-ENU Dumps Questions to Be Certified

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January 28, 2025

To help prepare for the H12-323_V2.0-ENU exam, you may want to consider using H12-323_V2.0-ENU exam dumps questions. These questions are designed to test your knowledge and understanding of the topics covered on the exam. The more you practice answering H12-323_V2.0-ENU dumps questions, the more comfortable you will become with the exam format and the types of questions you can expect to see. H12-323_V2.0-ENU dumps can help reduce anxiety on exam day and improve your chances of success. Go and test free H12-323_V2.0-ENU exam dumps questions here.

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1. In a WLAN network, the WLAN theoretical rate refers to the Wi-Fi air interface link establishment rate. Different Wi-Fi protocol standards correspond to different WLAN theoretical rates.

Which of the following factors affect the theoretical rate of WLAN? (Multiple choice)

Number of effective subcarriers

Symbol length and GI

Bit rate

Number of spatial streams

2. In WLAN networks, omnidirectional antennas are mostly used in point-to-multipoint communication hubs because of their non-directional nature, while directional antennas are suitable for long-distance communication because of their directional nature.

True

False

3. By default, how many users can LeaderAP support to log in through the Web management method at the same time?

4. When using the terminal dialing test tool to conduct network quality assessment tests, in principle, at least 3 points should be selected in the same scenario and each point should be tested at least 3 times in order to ensure the test effect.

True

False

5. When using WLAN Planner for LAN network planning, multiple projects can be merged according to the actual situation of the project. However, there are certain restrictions on merging projects. When merging multiple projects, which of the following information do users need to ensure consistency? (Multiple choice)

Merged projects have layers

Authorization Type

Country

Project Name

6. Airtime scheduling is different from traditional scheduling in that when a new user transmits data, it is changed from being directly placed at the end of the user queue to being inserted into a specified position based on the time the wireless channel is occupied.

True

False

7. What configuration methods does the wireless controller support? (Multiple choice)

Telnet configuration

Console port configuration

Configuring through eSight

LLDP configuration

8. During the routine maintenance of the wireless network, engineers use the traditional WLAN network operation and maintenance method to view information on the wireless controller web interface. Which of the following contents can be queried through the web interface? (Multiple choice)

Wireless controller license status

Memory usage of wireless controller

CPU usage of wireless controller

AP CPU utilization

9. When a company deploys a WLAN network in an office scenario, it will plan the WLAN network in advance. The purpose is to ensure that there are no blind spots in the wireless network coverage, ensure the user's Internet access speed, and improve the office network experience.

True

False

10. Which three factors are related to WLAN signal path attenuation? (Multiple choice)

Transmission distance

Environment Type

Signal frequency

Antenna direction

Latitude and longitude

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11. When the active/standby switchover occurs in a dual-link hot backup scenario, the switching time is long, which may cause interruption of service data forwarded by the tunnel or inability of new users to go online.

True

False

12. Which of the following addresses can be used as an Internet address? (Multiple choice)

10.1.1.6/30

10.1.1.7/30

172.18.1.17/30

224.1.1.16/30

13. WLAN Planner supports merging projects from multiple countries. The merged new project will be displayed with the task name of the baseline project.

True

False

14. In WLAN network intelligent operation and maintenance, CampusInsight southbound interface realizes the connection between CampusInsight and devices and completes CampusInsight's management function on devices. Which of the following southbound interface types are supported by CampusInsight? (Multiple choice)

Syslog

FTP

HTTP/2+ProtoBuf

SNMP

15. An engineer is deploying a wireless network. User access uses 802.1X authentication, the authentication point is the wireless controller, and the authentication server uses iMaster NCE-Campus.

The RADIUS authentication parameters are configured on the wireless controller as follows. Which of the following descriptions of the configuration are correct? (Multiple choice)

The device charges by duration, and the real-time billing function is not enabled

Configure the accounting mode to RADIUS

The RADIUS server address is 10.23.103.1

RADIUS authentication and accounting port numbers are 1812 and 1813 respectively

16. In a WLAN network, adjacent channels 36 and 40 with a bandwidth of 20 MHZ are bundled into a channel with a bandwidth of 40 MHZ. Which of the following descriptions of this channel bundling scenario are correct? (Multiple choice)

If the main channel is 36, the 40MHZ obtained after bundling belongs to the 40MHz-type channel working bandwidth

If the main channel is 36, the 40 MHZ obtained after bundling belongs to the 40MHz+ type channel working bandwidth

If the main channel is 40, the 40MHZ obtained after bundling belongs to the 40MHz+ type channel working bandwidth

If the main channel is 40, then the 40 MHZ obtained after bundling belongs to the 40MHz-type channel working bandwidth

17. In the VRRP hot backup scenario, the notification message between the active and standby WACs is not communicated, resulting in the standby WAC being unable to upgrade to the active WAC. The possible reason is that STP is enabled on the switch. You need to disable STP on the switch.

True

False

18. An enterprise uses WAC+FITAP networking, and users find that the AP fails to go online. The cause of this failure may be that the AP and WAC software versions do not match.

True

False

19. The test items in the current Huawei terminal dial-up test solution include signal strength, Ping, Internet performance, etc. Which of the following test items can be configured? (Multiple choice)

Web Connectivity

Intranet speed test

Internet Performance

Ping

20. In the Mest network, it is composed of multiple nodes (APs), each providing different functions.

Which of the following descriptions about nodes is wrong?

MP provides Mesh services and has Portal functions

Neighbor MP is an MP or MPP that is in direct communication range with a Mesh node.

The candidate MP is the neighbor MP with which the MP is preparing to establish a Mesh link

MPP is an MP node that connects Mesh networks and other types of networks

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21. Which of the following WAC high-reliability networking methods can support WAC remote deployment? (Multiple choice)

Dual-link cold backup

VRRP hot backup

N+1 backup

Dual-link hot backup

22. In the medical infusion hall scenario, the indoor floor height is 35 meters, the user distribution is 2 square meters per person, and the business types include web browsing, games, videos, and instant messaging.

Which of the following network deployment suggestions for this scenario is wrong?

It is recommended to deploy APs at equal intervals of 15 to 18 meters

Install the AP away from interference sources

It is recommended to use indoor directional AP and wall mount it.

It is recommended to install the AP at least 3 meters away from the load-bearing column.

23. When a company has visitors, it is necessary to control the visitor's access behavior while facilitating visitor access. Which of the following authentication methods is generally recommended for this type of visitor scenario?

802.1X authentication

MAC bypass authentication

MAC Authentication

Portal Authentication

24. Which of the following options are correct about the wireless health assessment function of CampusInsight intelligent operation and maintenance platform? (Multiple choice)

Detailed disclosure and diagnosis of key experience indicators, including the health of the experience indicator and various factors affecting the indicator.

The evaluation is mainly based on the following key indicators: access success rate, access time, coverage and interference, roaming compliance rate, capacity compliance rate, throughput compliance rate, AP forwarding efficiency

Ranking different networks or different regions of the same network based on comprehensive experience evaluation to identify networks or regions with low overall health or low rankings in certain key indicators

The wireless health report is sent to users in the corresponding user group in PDF format. The report includes analysis of indicators such as access success rate, access time, throughput compliance rate, capacity health, signal and interference, and roaming compliance rate.

25. In the wireless coverage scenarios of wards and clinics, engineers proposed two network planning solutions as shown in the figure.

Which of the following descriptions of these two solutions are correct?

If the walls between rooms are brick walls, it is recommended to use solution A, which is to place a panel AP or RU in each room and mount it on the wall.

If the walls between rooms are brick walls, it is recommended to use solution A, which is to place a panel AP or RU in each room and install it on the ceiling.

If the wall between the rooms is a gypsum wall, it is recommended to use solution B, one AP or RU covers two rooms and is mounted on the wall.

If the walls between the rooms are plaster walls, it is recommended to use solution B, where one AP or RU covers two rooms and is installed on the ceiling.

26. Which of the following options are correct for describing the spectrum navigation function? (Multiple choice)

When the number of users accessing the AP reaches the starting threshold of spectrum navigation 5G priority, the 2.4G radio frequency is silent and the terminal is guided to access 5G

Through the spectrum navigation function, the AP can control the terminal to access 5G first to reduce the load and interference on the 2.4G frequency band

Before the number of AP users reaches the starting threshold of spectrum navigation 5G priority, priority access to the 5G frequency band

The two frequency bands of the AP that implement the spectrum navigation function must use the same SSID and security policy

27. After the terminal is associated with the wireless signal, use the CloudCampus APP to view the basic information of the current connected network. The query results are shown in the figure below. The current working channel of the AP associated with the terminal is ().

28. Compared with WPA2 Personal, WPA3 Personal can provide more reliable password-based authentication, and WPA3 Personal only supports AES data encryption algorithm and cancels support for TKIP encryption algorithm.

True

False

29. Through the radio frequency tuning function, the AP's channel and power can be dynamically adjusted to keep the channels and power of each AP managed by the same WAC relatively balanced, ensuring that the AP works in the best state. Please sort the following radio frequency tuning workflows

30. In the daily operation and maintenance of the WLAN network, logging into the wireless controller Web network management and checking the WAC alarm information is also an important step.

When engineers discover which of the following alarm levels, they need to handle them promptly? (Multiple choice)

Clear

Uncertain

Emergency

Important

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31. The VRRP hot backup of Huawei wireless controller only supports VRRP master-slave backup mode and does not support VRRP load sharing mode.

True

False

32. Which of the following descriptions of RF tuning solutions is wrong?

For radios configured with WDS bridges or Mesh links, the radio tuning A function does not take effect.

Global tuning is performed on all APs

If the RF channel switch is triggered during the scanning process, the user service data delay will increase at the moment of channel switching, which may affect the wireless service experience

The RF tuning function is suitable for high-density scenarios and outdoor directional antenna coverage scenarios

33. Which of the following tasks need to be completed during the planning and design phase of WLAN network planning? (Multiple choice)

Equipment selection

Signal coverage analysis

Capacity Design

Business Analysis

34. Which of the following descriptions about 802.11r fast roaming is wrong?

According to the protocol standard definition, 802.11r fast roaming includes Over-the Air and Over-the-DS

802.11r fast roaming requires the terminal to support the 802.11r protocol

802.11r fast roaming is applicable to security policies such as WPA2-PSK-AES, WPA2-PPSK-AES, and WPA2-802.1×-AES

802.11r fast roaming omits the key negotiation process through pairwise master key caching technology, thereby reducing roaming delay

35. As shown in the figure, this is a WLAN network diagram deployed by an enterprise using a Mesh networking architecture.

The network contains multiple devices. Which of the following devices has the portal function?

AP2

AP1

AP4

AP3

36. In a WLAN network, when the distance between the AP and the power supply is 300 meters, in order to meet the power supply requirements, in addition to the AP and the switch supporting PoE++ power supply, which of the following cables needs to be used for connection?

Category 6 network cable

Optical-electrical hybrid cable

Category 5e network cable

Category 7 network cable

37. In the WLAN network optimization solution, configuration optimization mainly adjusts the parameters that affect the network experience-related functions, including radio frequency parameter adjustment, authentication strategy optimization, security strategy optimization, etc.

True

False

38. In the WLAN network WAC roaming scenario, the roaming group server is mainly used to maintain the member table of the roaming group and send it to each WAC in the roaming group, so that the WACs in the roaming group can recognize each other and establish tunnels between WACs.

Which of the following descriptions about roaming group servers are correct? (Multiple choice)

A WAC that becomes a roaming server can join multiple roaming groups at the same time

A WAC can serve as a roaming server for multiple roaming groups at the same time

The roaming group server can be a WAC outside the roaming group

A WAC that becomes a roaming server cannot be managed by other roaming servers

39. 80211r roaming is applicable to many scenarios. The authentication and key negotiation process is omitted during roaming, and the latency is low.

True

False

40. In Huawei's intelligent roaming solution, AP needs to collect surrounding terminal information, discover neighbor APs, and periodically report to WAC to form neighbor table entries.

Which of the following are the ways to discover neighbor APs? (Multiple choice)

The neighbor table is constructed based on the APs in the load balancing group.

Through the Beacon report mechanism of the 802.11k protocol, the terminal is required to report the neighbor APs it sees

AP listens to the Probe frame of the terminal

AP periodically switches channels and actively scans for terminals

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41. In the hotel wireless coverage scenario, which of the following descriptions of the guest room scenario network plan are correct? (Multiple choice)

When installing RU or panel AP in a room, it is usually installed under the table using 86 box or wall mounting.

APs outside the room that cover the corridor should be installed away from the door of the guest room.

If the guest rooms are separated by solid walls, APs can be deployed at equal intervals in the corridor to save costs.

If the guest rooms are separated by solid walls, it is recommended to place one RU or panel AP in each room to ensure user experience.

42. In a WLAN network, for sticky terminals, which have poor roaming initiative, the roaming problem can be solved by configuring the smart roaming function in which of the following templates?

RRM template

SSID template

VAP template

Certification Template

43. Which three formats of drawings can be planned using WLAN planning tools? (Multiple choice)

Google Earth

Bitmap (jpg, gif, bmp, etc.)

PDF drawings

Vector graphics (ai, odr, etc.)

44. In VRRP hot backup and dual-link hot backup networking, the data synchronization function of the active and standby WACs is implemented through the HSB protocol. Which of the following are the data synchronization methods of HSB? (Multiple choice)

Real-time backup

Manual backup

Batch backup

Timing synchronization

45. When an engineer was debugging a wireless network at a customer site, the radio frequency tuning function configured on the device did not take effect. The engineer checked the current radio frequency tuning status on the wireless controller, and the following was displayed.

After analyzing the displayed information, which of the following may be the cause of the failure of radio frequency calibration?

No VAP template is configured on the device

The channel and power automatic selection functions are disabled on the device.

AP did not detect neighbor information

Device tuning is not completed

46. Use WLAN After Planner completes the network planning steps, it can output the network planning report through the "Export Report Function". Which of the following contents can be included in the report? (Multiple choice)

Signal simulation diagram

AP point map

Capacity satisfaction

Quantity of materials involved in the project

47. In WLAN networks, antenna gain refers to the ratio of the radiated power density of the antenna in a specified direction to the radiated power density of the reference antenna (usually an ideal radiation point source) when the input power is the same.

Which of the following are the main units for expressing antenna gain? (Multiple choice)

dBi

dBm

dBd

48. In a WLAN network, which of the following descriptions about directional antennas and omnidirectional antennas are correct? (Multiple choice)

When the coverage distance is long, omnidirectional antennas are preferred

Directional antennas are suitable for coverage areas such as pedestrian streets

In outdoor scenarios, try to use omnidirectional antennas for planning

In outdoor scenarios, omnidirectional antennas are easier to plan than directional antennas.

49. In indoor non-high-density deployment scenarios (AP spacing of 10 to 15 meters), 5G networks can automatically identify service priorities, service throughput, and interference through a dynamic bandwidth selection algorithm, and prioritize allocating more network resources to high-load areas to improve user experience.

Please sort the following steps of the dynamic bandwidth selection algorithm according to the workflow

50. In wireless networks, due to the different radio modes supported by terminals or the differences in the wireless environments in which the terminals are located, the actual message transmission rates of users may vary greatly. By enabling the Airtime scheduling function, the wireless channel occupancy time of each user is scheduled under the same radio frequency to ensure that each user occupies the wireless channel relatively fairly. If multiple users transmit different types of messages, the Airtime scheduling still takes effect.

True

False

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51. When an enterprise deployed a WLAN network, in order to meet the enterprise's security requirements, Portal authentication was used to authenticate wireless users. Now users report that when they enter any IP address in the browser, they can be redirected to the Portal page and access it normally, but when they enter any domain name, they cannot be redirected to the Portal page.

So, what are the possible reasons for the above situation? (Multiple choice)

The terminal did not obtain an IP address

WAC and AP do not allow the DNS server IP address to be released through free-rule

The terminal is disconnected from the DNS server network

There is no DNS server in the network

52. WLAN air interface is a complex environment, and its performance is related to many factors. In addition to the co-frequency and adjacent-frequency interference between WLAN devices themselves, non-WLAN devices will also interfere with the WLAN air interface performance.

When deploying APs, you should avoid which of the following devices to prevent interference from affecting air interface performance? (Multiple choice)

Wireless game controller

Cordless phone with the same frequency band

Bluetooth devices

Microwave oven

53. Which of the following descriptions about the roaming experience test function in the CloudCampus app is wrong?

During the test, the terminal needs to associate with the wireless signal and walk in the network coverage area to complete the roaming test.

After the roaming test is completed, the roaming test report will be automatically sent to the customer via email

Ping packets continuously during the test and evaluate the roaming effect by observing packet loss during the roaming process

You can customize the Ping packet address during the roaming test

54. Which of the following tools can be used when using CloudCampus APP for project delivery? (Multiple choice)

Network regulations

Roaming experience

Acceptance

Site Survey

55. In WPA/WPA2 encryption, which of the following keys can be used to encrypt multicast and broadcast wireless messages?

Group Master Key

Pairwise Transient Key

Group Temporal Key

Pairwise Master Key

56. In an agile distributed network consisting of AirEngine series central APs and RUs, a CAPWAP control tunnel is established between the RU and the WAC. Which of the following descriptions of the role of this CAPWAP control tunnel are correct? (Multiple choice)

Maintain the connection status between WAC and RU

In direct forwarding mode, it is used by RU to forward service data to WAC

Used by WAC to manage RU

Used by WAC to send service configuration to RU

57. An engineer configures the smart roaming policy as follows. Which of the following configuration descriptions is wrong?

If the terminal rate is less than 30% of the maximum rate, the smart roaming conditions are met.

If the terminal signal-to-noise ratio is higher than 25B, then the smart roaming conditions are met.

The high difference threshold for triggering STA roaming guidance is 16dB, and the low difference threshold is 8dB

Smart roaming is triggered by detecting the terminal SNR and the terminal rate.

58. When using WLAN Planner to merge projects, both the baseline project and the related projects must have floors before the projects can be merged, otherwise the merger will fail.

True

False

59. As shown in the figure, the signal attenuation value of the "wooden partition" wall in the field survey is 5dB, the AP transmission power is 23dBm, and the path loss is 60dB. Without considering other factors, the signal field strength at the mobile phone location is () dBm.

60. In the daily operation and maintenance of WLAN networks, engineers need to regularly observe whether the fan of the equipment is working normally, because when the temperature continues to rise to a dangerous temperature, the equipment will automatically cut off the power, causing business interruption.

True

False

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61. Among the following WAC high-reliability networking methods, which ones require that the models and software versions of the active and standby WACs must be exactly the same? (Multiple choice)

Dual-link cold backup

VRRP hot backup

Dual-link hot backup

N+1 backup

62. In the WAC dual-link cold standby scenario, please arrange the following options to determine the correct master WAC election rules.

63. When optimizing wireless networks, it is recommended to configure port isolation on the device interface directly connected to the AP. If port isolation is not configured, a large number of unnecessary broadcast messages may be generated in the VLAN, causing network congestion and affecting user experience.

True

False

64. EIRP is the power radiated by the antenna in a specific direction, which is obtained by adding the AP transmit power MIMO gain and the antenna gain.

True

False

65. Which of the following options are inherent properties of antennas? (Multiple choice)

Horizontal lobe, vertical lobe

Downward tilt

Azimuth

Gain

66. Which of the following descriptions about static load balancing is wrong?

Each load balancing group has a maximum of 16 AP members.

If it is a multi-band AP, load balancing can be achieved between radios in different frequency bands.

For agile distributed networking such as central AP+RU, you only need to add the RU's radio to the static load balancing group.

Add some APs that provide the same service to a load balancing group through manual configuration

67. AP can switch working mode through DHCP. When agilemode=() in DHCP option 148 field, AP will switch to cloud mode.

68. In NaviAC networking, LocalAC and NaviAC cannot establish a CAPWAP tunnel. What are the possible causes of this failure? (Multiple choice)

The CAPWAP source addresses of the Local AC and Navi AC are unreachable on the network.

The CAPWAP source address is not specified in the Local AC

CAPWAP source address is not specified in Navi AC

The Navi AC has not applied for an AP license

69. In the classroom scenario, the indoor floor height is about 3~5 meters. The figure shows the network planning scheme for ordinary classrooms and stepped classrooms. Please match the recommended antenna type and installation method with the two schemes respectively.

70. As shown in the figure, this is the toolbar of WLAN Planner. Users can click these icons to perform quick operations when planning and designing WLAN networks.

Among them, when clicking the "Replace" icon, which of the following devices is not included in the replacement?

Switch

WAC

Obstacles

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71. When an engineer was optimizing the network, he enabled the intelligent roaming function to ensure the terminal roaming effect. The specific configuration is as follows.

Which of the following options are correct for the description of smart roaming configuration? (Multiple choice)

The threshold value of smart roaming based on signal-to-noise ratio is 25 dB

User roaming triggering method is based on terminal signal-to-noise ratio

Engineers can adjust the parameter value according to the customer's needs for terminal signal strength, but please note that if the threshold value is set too high, it may cause frequent terminal migration.

When the terminal signal strength is lower than -25 dBm, the terminal will be guided to migrate

72. In dormitory scenarios, panel APs are generally used and wall-mounted. The figure below shows the network planning scheme for dormitory scenarios. Which of the following schemes is the most reasonable?

Option C

Plan A

Plan D

Plan B

73. In WLAN networks, in addition to signal attenuation affecting the receiver's recognition of wireless signals, interference and noise will also have an impact to a certain extent. Both interference and noise are related to the environment and do not change with the source signal.

True

False

74. When an engineer was debugging a wireless network at a customer site, the RF tuning function configured on the device did not take effect. The engineer initially suspected that the AP was unable to detect neighbor information.

Which of the following command lines can an engineer enter on the wireless console to view AP neighbor information?

display ap 11dp neighbor

display pim neighbor

display neighbor all

display ap neighbor

75. In a wireless network, when a STA moves from one AP coverage area to another AP coverage area, WLAN roaming technology can be used to achieve smooth switching of terminal user services.

Which of the following conditions must be met to achieve roaming between two APs? (Multiple choice)

Configure the same service VLAN

Configure the same data forwarding mode

Configure the same SSID

Configure the same security policy

76. Which of the following Huawei switches support PoE function? (Multiple choice)

S2700-9TP-PWR-El

S5700-24TP-PWR-Sl

S3700-52P-El-24S-DC

S5700-48TP-SI-A

77. Which of the following items is not included in the Wi-Fi experience test conducted through the CloudCampus app?

Terminal link establishment rate test

Internet Performance Testing

Web connectivity test

Ping packet test

78. In a VLAN network, what are the stages of STA access? (Multiple choice)

Scanning Phase

Link authentication phase

Association phase

User authentication phase

79. What are the two most important inputs in WLAN pre-sales survey? (Multiple choice)

Architectural drawings

Planning Tools

Requirements confirmation checklist

80. In the WLAN network planning project, after using WLAN Planner to import CAD drawings, which of the following steps needs to be performed to generate the corresponding floors?

It depends on the size of the CAD drawing. If the drawing is too large, it needs to be cut and submitted.

Submit CAD drawings directly

Import the drawing and select the area before submitting

After importing, no additional operations are required to use

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81. The wireless terminal migration function can migrate terminals with poor service experience to suitable APs based on the actual WLAN network environment. Terminal migration methods include BTM or deauth.

When the terminal supports which of the following protocols, the AP preferentially uses the BTM method to migrate the terminal?

802.11r

802.11i

802.11k

802.11v

82. During STA roaming, WAC will record the STA roaming track, that is, the AP information passed by.

Run the displaystationroam-track command on the WAC to view the STA's roaming track. Which of the following information is not included?

Negotiation rate between STA and AP

STA passes through AP's SSID

SSID that the STA is currently associated with

Name of the AP that the STA passes through

83. On the wireless controller web interface, you can view the AP health score to determine the overall status of the AP. Which of the following indicators determine the AP health score? (Multiple choice)

The proportion of APs in abnormal status (such as APs in abnormal status such as idle or fault)

Terminal access failure rate

Terminal drop rate

Number of access users

84. The engineer inspected the customer's wireless network and found that the service experience was not good using the terminal. The engineer checked the terminal service experience through the user journey function of CampusInsight.

The user journey is shown in the figure below. Which of the following may be the cause of this poor user experience?

The terminal itself has poor performance, resulting in a low negotiation rate

Low terminal signal strength leads to poor experience

The terminal does not support the 802.11r protocol and cannot perform 802.11r roaming, resulting in poor roaming performance

The terminal enters power saving mode, resulting in packet loss

85. In Huawei's cloud management solution, all APs are managed by the cloud platform. This solution supports roaming between cloud APs at different sites.

True

False

86. In LeaderAP networking mode, Layer 2 or Layer 3 roaming is supported but roaming between multiple LeaderAPs is not supported

True

False

87. Perform a roaming test through the CloudCampus app. After the test is completed, the roaming record is as shown in the figure below. Which options are correct for describing this roaming? (Multiple choice)

The signal strength of the terminal before roaming is -78 dBm

No packet loss occurred during roaming test

The signal strength of the terminal after roaming access to the AP is -33 dBm

The working channel of the AP accessed by the terminal changes before and after roaming

88. In actual projects, engineers often use the "Roaming Experience" function of the CiudCampus APP to detect changes in Wi-Fi information and roaming switching during mobile phone roaming.

This feature can be found in which of the following "Tools" pages of the CloudCampus app?

Business Testing

Scenario Testing

Coverage Test

Project Delivery

89. As shown in the figure, in the dual-link load-sharing hot standby network, AP1 is a newly launched AP, and both WACs have the configuration to access this AP. Which of the following WACs will AP1 access first?

WAC1

No access

WAC2

Random Access

90. Huawei's wireless load balancing solution includes static load balancing and dynamic load balancing. The number of members in a static load balancing group is limited, supporting up to 16 members.

True

False

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91. With the development of Wi-Fi technology, WLAN network has become one of the main means of enterprise network access, and users have higher requirements for the experience of WLAN network. In order to meet the user experience requirements, engineers need to continuously maintain and optimize the WLAN network.

Usually, engineers optimize WLAN networks from which of the following aspects? (Multiple choice)

Client Optimization

Network optimization

Wired network optimization

Wireless beam optimization

92. A company has deployed multiple APs in its office area. To improve the convenience of network deployment, the user hopes that WAC will automatically assign channels to APs based on the wireless network environment, so the RF tuning function is configured.

However, engineers found that the RF tuning did not take effect. Which of the following configurations might be the cause?

Configure the command calibrate Auto-charnel-select Disable

The radio-mode 2radio-independent-scan command is configured

Configure the command calibrate Auto-txpower select enable

Configure the command undo terminal-identify Disable

93. The SYS indicator on the Huawei wireless controller is always green when it is working normally.

True

False

94. When using WLAN Planner to deploy equipment, you can double-click the AP to set the azimuth and downtilt angle of the directional antenna. The maximum downtilt angle can be set to () degrees.

95. In a WLAN network, which of the following principles should be followed when laying out cable routing? (Multiple choice)

When deploying a WLAN network, keep it away from strong electricity and strong magnetic fields.

The recommended length of the network cable from AP to POE switch is no more than 120 meters

Before deployment, the network cable deployment plan must be confirmed with the customer in advance to avoid the customer's disagreement with the construction due to other reasons such as property, aesthetics, etc.

The length of the network cable or optical-electric hybrid cable should be reserved for about 5 meters to facilitate fine-tuning of the AP position later.

96. In a WLAN campus network project, engineers adopted the solution of AC on the same board. If this solution is adopted, engineers can manage APs connected from other non-XIE boards through the X1E board.

True

False

97. When designing indoor AP coverage, the number of obstacles that the signal passes through should be minimized. It is not recommended to penetrate 240m thick brick walls, concrete walls or metal walls for coverage.

True

False

98. Which of the following statements about the requirements for confirming on-site environmental information during WLAN on-site survey is correct? (Multiple choice)

Confirm whether the site is completely consistent with the architectural drawings. Mark out the inconsistent areas, take photos as much as possible, and mark the room numbers on the site in the drawings.

Take as many photos of the scene as possible indoors; pay special attention to the equipment installation location, overall coverage area, internal building structure, and new obstacles. For outdoor coverage, pay attention only to the obstacles between the AP and the coverage area.

When surveying indoors, refer to the drawings to distinguish the types of obstacles, mark the actual location of each type of obstacle, mark obstacles of different materials with different colors, and test their 2.4G and 5G attenuation values

When surveying indoors, be sure to mark out other obstacles that are not shown on the drawings but affect the coverage effect, such as load-bearing columns, partitions added during decoration, ceilings and other large objects

Outdoors, you need to pay attention to the height and obstruction range of obstacles on site. For irregular obstacles (such as trees, etc.), try to take photos to record them.

99. AP6510DN is connected to AT815SN in a 6-point backhaul scenario; the backhaul distance is about 100m. Six AT815SNs are distributed in a range of 60 meters long and 60 meters wide; the equipment is installed at the same height and there is line of sight.

When the uplink bandwidth requirement is 10 Mbps and there is no EIRP restriction, which of the following antennas can be selected? (Multiple choice)

5G_19dBi_H15 degrees_V15 degrees

5G_17dBi H65 degrees_V7.5 degrees

56_16dBiH100 degrees_V5.5 degrees

5G_28dBi_H5 degrees_V5 degrees

100. A large enterprise uses Navi AC networking architecture to deploy LAN network. When engineers configure Navi AC function, which of the following authentication methods does not need to ensure that the authentication configuration on Local AC and Navi AC is consistent?

802.1X authentication

MAC Authentication

Built-in Portal authentication

External Portal Authentication

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101. Which of the following is the default management SSID name when the AP is in FITAP or Cloud AP mode?

HUAWEI-LeaderAP-xxxx, where xxxx is the last four digits of the AP MAC address

xxxx is the unsigned 4-digit AP MAC address.

HUAWE lmanage xxxx, where xxxx is the last four digits of the AP MAC address

HUAWE xxxx xxxx is the last four digits of the AP MAC address

102. When testing obstacle attenuation, the AP should be placed as close to the obstacle as possible. The closer to the signal source, the greater the signal strength, and the more accurately the obstacle attenuation can be tested.

True

False

103. In the WLAN high-density deployment scenario, which of the following technologies can be used? (Multiple choice)

Enable 2.4G and 5G dual-band

Increase AP transmit power

Enable pure N mode

Enable signal threshold access

Use indoor antenna

104. Which of the following descriptions about the differences between Layer 2 roaming and Layer 3 roaming are correct? (Multiple choice)

If the VLAN IDs of two subnets are the same, STA roaming between the two subnets is considered Layer 2 roaming.

Layer 3 roaming means that the client roams between different subnets

If the VLAN IDs of the two subnets are different, STA roaming between the two subnets is considered Layer 3 roaming.

Layer 2 roaming means that the client roams between the same subnets

105. The dynamic bandwidth adjustment algorithm in Huawei's wireless RF automatic tuning solution will adjust the bandwidth of the hotspot area upward to 40 MHz or 80 MHz according to the channel allocation to improve network throughput. However, when the network interference increases to a certain threshold, it will prioritize ensuring that the network is interference-free and reduce the bandwidth of the hotspot area.

True

False

106. In a WLAN network, if you want to configure the spectrum navigation function, the AP is required to support both the 2.4G band and the 5G band, and the two radio frequencies must use the same () and security policy.

107. Log in to the Huawei wireless controller to check the status of the AP. If the AP status is in the committing state, it means that the WLAN configuration is being sent to the AP and you need to wait for the configuration to be sent.

True

False

108. When using the CloudCampus APP to view the signal interference of the current network, in addition to viewing Wi-Fi signal interference, you can also view non-Wi-Fi interference information

True

False

109. Which of the following functions can WLAN Planner achieve? (Multiple choice)

On-site signal scanning

3D simulation

Automatic deployment of APs

View the field strength simulation diagram

110. In the WLAN backhaul scenario, due to the complex environment and high bandwidth requirements of the business, reasonable planning is required when designing and installing APs.

Which of the following deployment suggestions for backhaul scenarios is wrong?

It is necessary to confirm in advance whether there are obvious obstacles on the propagation path between MP and MPP nodes.

Check in advance whether there is interference in the Wi-Fi frequency band near the site

The antenna installation height must be within the radius r of the building's high Fresnel zone

When selecting a directional antenna, the main lobe coverage of the MPP antenna should cover all MP antennas.

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111. In the Portal authentication scenario, WAC is used as the access device. During the authentication process, the Portal user fails to authenticate successfully. What are the possible reasons for this problem? (Multiple choice)

WAC has disabled the STA address learning function

WAC has enabled the Portal server detection function, but the Portal server has not enabled this function.

The shared key configured on WAC is inconsistent with that on the Portal server

The destination port of the Portal server configured on the WAC is inconsistent with the listening port on the Portal server.

112. WLAN Planner supports 3D simulation function. Which of the following simulation modes does 3D building support when performing 3D simulation?

Free walking in walking mode

Automatic walking in walking mode

Walking Mode

Rotation Mode

113. What are the two main applications of WLAN in the medical industry? (Multiple choice)

Mobile HIS

CBTC

Label positioning

Barcode scanning

114. A company's WLAN network has multiple APs working in the 2.4G frequency band. Since there are relatively few available channels in the 2.46 frequency band, the recommended bandwidth is 20 MHz .

True

False

115. As shown in the figure, it is a WLAN network diagram of an enterprise. STA performs Layer 3 roaming in TAC, and the user data forwarding mode is direct forwarding. Then, by default, which of the following is the traffic forwarding path after STA roaming?

STA->AP2->WAC->AP1->WAC->sw->Internet

STA->AP2->SW->Internet

STA->AP2->WAC->SW->Internet

STA->AP2->WAC->AP1->Sw->Internet

116. After the Huawei wireless controller enables the automatic RF tuning function, if the AP finds that the channel utilization is too high, the noise floor is too high, or the Beacon frame cannot be sent normally, it will report to the wireless controller to trigger local RF tuning.

True

False

117. In a WLAN network, how many spatial streams can a single radio support at most according to the 802.11ac and 802.11ax protocols?

118. In WLAN networks, which of the following descriptions of the four transmission systems, SISOMISO, SIMO, and MIMO, are correct? (Multiple choice)

In the AMIMO transmission system, two signals can be transmitted simultaneously

In SIMO transmission system, two signals can be transmitted simultaneously

In the MISO transmission system, two signals can be transmitted simultaneously

In a SISO transmission system, only one signal can be transmitted

119. In a WLAN network, management messages must be forwarded using a CAPWAP tunnel, while service data messages can be forwarded through a CAPWAP tunnel or direct forwarding.

True

False

120. In a WLAN network, a country code is used to identify the country where the AP radio is located. Different country codes specify different AP radio characteristics, which of the following items are mainly included? (Multiple choice)

2.4G available channels

Radar Channel

5G available channels

Maximum transmit power

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121. The ability to pass the certification verification is to master the relevant technologies of wireless local area network, and have the ability to use Huawei wireless local area network equipment to professionally plan, design, deploy, operate and optimize the wireless local area network of large and medium-sized enterprises, ensuring the network security, reliability and stable operation of the enterprise wireless local area network.

True

False

122. When using built-in Portal authentication, the access device usually provides built-in Portal server function in HTTPS mode. If the access device is not configured with a trusted certificate, the client browser will not trust the default self-signed certificate of the access device and will pop up a security certificate warning message.

True

False

123. In order to expand the wireless coverage area and reduce the cost of wired deployment, an enterprise adopts mesh networking architecture to deploy WLAN network.

After the deployment is complete, the engineer runs the display wlan mesh link all command, and the following output is displayed.

Which of the following descriptions of this network are correct? (Multiple choice)

Six Mesh links have been successfully established in this network.

In this network, AP4 plays the role of Mesh as MPP node

In this network, AP3's Mesh role is an MPP node

There are two MPP nodes in this network

124. WAC supports multiple methods to obtain the working mode and iMaster NCE-Campus address. Please sort them in descending order of priority.

125. In the Layer 2 inter-TAC roaming scenario, the STA belongs to the same subnet before and after roaming. The FAP/FAC forwards the messages of the Layer 2 roaming users in the same way as the ordinary newly online users. The messages are directly forwarded in the local network of the FAP/FAC, without the need to be forwarded back to the HAP/HAC through the inter-WAC tunnel.

True

False

126. In the WLAN network intelligent roaming scenario, WAC will select the target AP that triggers the terminal to roam based on factors such as signal-to-noise ratio, access rate, and load balancing. The figure shows the selection process of the roaming target AP when the terminal supports the 802.11k protocol. Which of the following is correct?

②④①③⑤

②⑤①③④

②④①⑤③

②⑤①④③

127. With the development of Wi-Fi technology, WLAN network has become one of the main means of enterprise network access, and users have higher requirements for the experience of WLAN network.

A newly deployed WLAN network needs to be optimized at the most basic level. Which of the following aspects can be used to optimize the network? (Multiple choice)

Power

Terminal Migration

Channel

Traffic

128. The wireless air interface is a virtual logical interface on an AP or terminal. Many factors affect the performance of the wireless air interface, but which of the following factors is not included?

Interference from non-WLAN devices

Differences in terminal capabilities

Switch forwarding capability

Interference from WLAN equipment

129. On WLAN devices, STA blacklist and whitelist can be referenced in AP system template or VAP template, but STA blacklist and STA whitelist cannot be configured at the same time for a VAP template or AP system template. For example, if STA whitelist is configured in a VAP template, if STA blacklist is configured in this VAP template, the configuration will be refreshed to STA blacklist configuration, without STA whitelist configuration.

True

False

130. When using CloudCampus APP to test the speed of the intranet, you can customize the IP and port of the intranet speed test server

True

False

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131. After a device fails, engineers will collect fault information, which mainly includes basic fault information, operating status information, device log information, and intelligent diagnostic information.

Which of the following are the main contents of the operating status information? (Multiple choice)

Interface information

Fault phenomenon

System version

Equipment Configuration

132. Backup of Portal authentication information is not supported in dual-link hot standby scenarios. If Portal authentication is configured, wireless users using Portal authentication need to re-enter their username and password after the active/standby WAC switchover.

True

False

133. In a certain higher education scenario, users reported that there were blind spots in WLAN signal coverage, which affected the user experience of students and employees. Due to cost and engineering considerations, they requested that the existing AP points should not be moved.

So which of the following coverage optimization solutions can be implemented? (Multiple choice)

For outdoor scenarios such as playgrounds where directional external antenna APs are used, the antenna angle can be adjusted to improve the

In dormitories and other rooms with dense brick walls, the number of APs can be appropriately increased to ensure that one AP covers one room

If individual points do not meet the requirements, you can turn on the automatic power adjustment function to improve

You can use WLAN Planner to simulate the AP coverage of the entire network and manually adjust the AP power based on the simulation data.

134. In a WLAN network, when engineers configure the DHCP server, they need to pay attention to whether the WAC and the AP are in the same network segment. If they are in the same network segment, the DHCP server does not need to configure the option 148 field and the AP can also discover the WAC by broadcasting. If the WAC and the AP are not in the same network segment, the DHCP server must configure the option 148 field to specify the IP address of the WAC for the AP, otherwise the AP will not be able to discover the WAC.

True

False

135. When WAC works in cloud mode, the local license does not take effect. Otherwise, WAC cannot manage FIT APs.

True

False

136. In the direct forwarding mode of side-by-side networking, which of the following descriptions of WLAN HA technologies is wrong? (Multiple choice)

The CAPWAP link-break service retention feature enables online users to forward data packets normally when an AC fails.

The AP allows new users to access after CAPWAP is disconnected, and the feature is also valid in tunnel forwarding mode.

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

HSB+VRRP hot standby can achieve two high reliability mechanisms: active-standby mode and load-sharing mode.

137. Which of the following descriptions of WLAN network optimization measures is wrong?

If the threshold value for forcing users to go offline is too high, it will cause users to be easily disconnected. It is recommended to fine-tune it according to the actual situation of the project.

It is recommended to separate the AP management VLAN and user service VLAN

If multicast services are not planned in the network, it is recommended to configure multicast message suppression for both upstream and downstream

AP management VLAN and service VLAN can use VLAN 1

138. WLAN network optimization can be divided into the following stages: information collection, WLAN network evaluation, WAN network optimization solution design and network acceptance.

Which of the following descriptions about network evaluation is wrong?

You can use CloudCampus APP and eDesk tools to assist in network assessment

The main contents of network assessment include known problems of the existing network, wired network data, air interface performance data, etc.

Prepare a customer demand checklist in advance and verify the demand with the customer to avoid omissions

Network assessment does not require customer participation, and network status information is obtained through manual troubleshooting, tool inspection, etc.

139. When installing and deploying an AP, the AP can use an Ethernet cable for PoE power supply. Which of the following descriptions of the PoE protocol are correct? (Multiple choice)

The maximum output power of a power supply device that supports the PoE+ protocol is 30 watts

The maximum output power of the power supply equipment supporting the POE+ protocol is 60 watts

The maximum output power of the power supply equipment supporting the POE protocol is 15.4 watts

The power supply standard of PoE++ technology is IEEE 802.3bt

140. In the WLAN network, among the four transmission systems of SISO, SIMO, MISO and MIMO, only MIMO can transmit two signals at the same time.

True

False

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141. In a certain enterprise WLAN network, in order to ensure that the terminal can promptly roam to the neighboring AP with better signal, the user configures the smart roaming function.

Which of the following descriptions of intelligence are correct? (Multiple choice)

The user roaming triggering methods of intelligent roaming include detecting terminal SAR or terminal rate

After enabling the smart roaming function, the AP will actively notify the terminal to trigger roaming

Smart roaming is mainly used to solve the problem that sticky terminals cannot actively roam

By default, the smart roaming function is not enabled.

142. A three-story office needs to plan WLAN. After the engineer completes the on-site survey, he decides to place three APs on each floor. Which of the following is the correct channel planning for these three floors? (Multiple choice)

1, 6, 11/6, 11, 1/11, 1, 6

1, 11, 6/ 6, 11, 1/11, 1, 6

1, 6, 11/6, 1, 11/11, 1, 6

11, 1, 6/1, 6, 11/6, 11, 1

143. In the WAC+FITAP networking scenario, CAPWAP tunnels support both IPv4 and IPv6 dual stacks. However, when deploying a WLAN network, it is not recommended to have both IPv4 APs and IPv6 APs in one area, otherwise it will affect services such as spectrum navigation, smart roaming, and load balancing.

True

False

144. In a hotel room wireless coverage scenario, agile distributed networking is adopted, TAC is hung in parallel, and Eth-Trunk is configured between the access switch and the central AP. Now the engineer replaces the SD card of the central AP due to business needs. If there is no other configuration, the AP will be abnormally offline.

True

False

145. Before conducting a site survey, it is recommended to use WLAN Planner to design a draft of the network plan and then guide the areas that need to be paid attention to during the site survey based on the results of the draft.

True

False

146. During the MAC authentication process, to prevent illegal users from brute-forcing the user name and password of the terminal, the silent function of MAC authentication can be enabled. By default, if a user fails to authenticate five times within 600 seconds, the access device will discard the user's authentication request within the next 60 seconds.

True

False

147. In the VRRP hot backup networking mode, the active and standby WACs establish active and standby backup channels through the () protocol to achieve data synchronization and backup functions for each business module.

148. In a project, two points are 4.5 km apart. In order to transmit data between the two points, which of the following information do engineers need to collect? (Multiple choice)

Bandwidth requirements

Obstacle information between two points

2.4G channel usage between two points

5G channel usage between two points

Terminal type

149. A user views the domain management template information on WAC as follows. Which of the following descriptions is wrong?

The current 4.9G frequency band is not enabled

The current country code is China's country code. If you want to change it, you can use the command country-code to configure it.

The current 5G RF tuning bandwidth is 20 MHZ

The current channel loading mode is outdoor mode

150. WLAN networks transmit data through wireless signals. As the transmission distance increases, the wireless signal strength will become weaker and weaker, and there will be overlapping interference between adjacent wireless channels. These will reduce the quality of wireless network signals and even make the wireless network unusable.

True

False

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151. Which of the following descriptions of the function of the coupler is wrong? (Multiple choice)

Combine multiple input signals into one output, and then filter and separate the mixed signal in reverse

Divide one signal into multiple outputs

Take the required signal energy from the trunk line to the near-end antenna, and allocate more signal energy to the far-end antenna

Connect the AP's radio port to the antenna port

152. During the WLAN planning stage, pre-sales site survey is an optional step.

True

False

153. In the Portal authentication scenario, if there is no condition to deploy an external independent Portal server, the built-in Portal server of WAC can be used for authentication. Which of the following descriptions about the built-in Portal server is wrong?

Due to compatibility issues with some mobile browsers, Portal authentication users using these browsers will not be able to complete authentication.

The built-in Portal server does not support MAC-first Portal authentication

The built-in Portal server does not support custom authentication page content and style

Compared with the external Portal server, the built-in Portal server has simple functions and limited performance and is only suitable for scenarios with a small number of access users.

154. When designing the WLAN network planning for the lecture hall scenario, the engineer proposed two network planning solutions as shown in the figure.

Which of the following descriptions of the two solutions are correct? (Multiple choice)

If the lecture hall is less than 6 meters high, it is recommended to use solution A, using an indoor built-in omnidirectional antenna AP ceiling installation

If the lecture hall is less than 6 meters high, it is recommended to use solution B, using an indoor built-in omnidirectional antenna AP ceiling installation

It is recommended to adopt solution

If the indoor floor height is greater than 6 meters, the external antenna AP should be installed on the ceiling.

If the reported floor height is greater than 6 meters, it is recommended to adopt solution B, using indoor and outdoor antenna AP wall mounting

155. The overall architecture of Huawei's terminal dial-up test solution is shown in the figure below, where CampusInsight is the background analysis tool.

Which of the following descriptions about CampusInsight is wrong?

Implement the data receiving backend server capability and be responsible for receiving and parsing the data reported by the APP

Provide ratings and improvement reports

Summarize and display the dial test data on the platform

Link with the device and adjust the device parameter configuration according to the dial test report

156. By default, the AP sends Beaconts at a period of 100 TUs.

True

False

157. Which of the following descriptions about WLAN network optimization is wrong?

During network optimization, you can use tools such as CloudCampus to evaluate network quality.

Before network optimization, network information needs to be collected, including network architecture, existing network configuration, and customer needs.

After network optimization is implemented and deployed, network optimization is completed after providing a network optimization solution report.

Before carrying out network optimization, a network optimization plan report needs to be output, and specific optimization will be implemented after customer confirmation.

158. The maximum number of layers supported by the location topology in Huawei eSight network management is () layers

159. Which of the following are commonly used tools for wireless network optimization? (Multiple choice)

CloudCampus APP

Antenna Alignment

WLAN Planner

Rangefinder

160. The display ap all command can be used to view the AP's MAC, Type, and operating status.

True

False

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161. When conducting a WLAN network planning project in China, the customer requires the deployment of multiple 2.4GHz band APs. Which of the following channels is usually used when planning channels for the entire network APs?

2, 7, 11

1, 6, 11

1, 5, 7

2, 8, 10

162. In a WLAN network, there is a Wi-Fi 6 AP with 12 antennas. How many spatial streams can the AP support at most?

163. WLAN Planner supports the project import function. The imported project is independent of the source project shared by others, and their editing operations do not interfere with each other.

True

False

164. When an engineer was optimizing the customer's existing network, in order to ensure the Internet access quality of online users, he enabled the weak signal user offline control function. The specific configuration is shown below.

So what are the correct options for the following configuration description? (Multiple choice)

When the signal-to-noise ratio threshold is configured too large, it may cause the terminal to go offline frequently

When the terminal signal strength is lower than -25dBm, the terminal is forced to go offline directly

By default, the function of quickly forcing weak signal users to go offline is enabled.

Specify the threshold value of 25dB for quickly forcing users to go offline based on the signal-to-noise ratio

165. When a company builds a new office network, it has 250 employees, a daily office bandwidth requirement of 8Mbps, a WLAN network concurrency rate of 60%, and uses dual-band AP networking (the number of concurrent users of a single AP under this bandwidth requirement is 30) to complete the deployment of the WLAN network. As the business develops, the company needs to recruit 200 more employees. How many more APs do they need to add to meet the wireless office needs?

166. In WLAN networks, there are currently three main different PoE standards, namely () () ().

802.3af | 802.3at | 802.3bt

167. In a WLAN network, which of the following configuration commands can change the GI mode of the AP2.4GHz radio to 1.6 microseconds?

[WAC-wlan-radio-2g-prof-default] guard - interval-mode norma

[WAC-wlan-radio-2g-prof-default] guard-interval-mode dotllax 1dot6

[WAC-wlan-radio-2g-prof-default] guard-interval-mode short

[WAC-wlan-radio-2g-prof-default] guard-interval-mode dotllax 3dot2

168. In Mesh networking, which of the following are necessary conditions for two adjacent APs to establish a Mesh connection? (Multiple choice)

Same security policy

Same Mesh ID

Same channel

The MAC addresses of neighboring APs need to be added to the Mesh whitelist strategy

169. When deploying Portal authentication on a Huawei wireless controller, what traffic should be allowed in the authentication-free template on the access device to ensure that the authentication terminal can jump to the page normally and open the Portal authentication page? (Multiple choice)

Traffic accessing the Internet

Traffic accessing the RADIUS server

Traffic accessing the Portal server

Traffic accessing the DNS server

170. In the outdoor backhaul scenario, which of the following descriptions of the site selection principle is wrong?

If there is other Wi-Fi interference near the site, you can set it to a different channel or coordinate to turn off the interference source.

The site should be selected away from strong electric and magnetic fields

The site should be located in an open area with no obstacles nearby.

If there are obstacles near the site, the height of the pole only needs to be higher than the obstacle.

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171. In an N+1 backup scenario, the switchover between the primary and backup WACs is determined by the AP. By default, if the AP does not receive a CAPWAP heartbeat detection message from the primary WAC within how many seconds, the primary and backup switchover will be triggered?

180

150

172. In WLAN network, beam width refers to the angle width formed by the point below the main beam peak () dB in the antenna pattern.

173. The tool is used for site survey. The network card must be loaded before starting the site survey.

Which of the following statements about network card loading is correct? (Multiple choice)

Before each site survey, the network card must be loaded

After opening the tool, you only need to load the network card once

After entering the tool for the first time, the network card must be loaded when starting the site survey

After opening the tool to load the network card, the second time the network card is loaded, it will be automatically loaded, but there will be a gap in between.

174. A customer's existing network uses Huawei wireless controller to deploy 8O2.1x authentication, and the authentication server is iMaster NCECampus.

Engineers found that the terminal always failed authentication during the wireless network debugging process. What are the possible causes of this problem? (Multiple choice)

The terminal and the authentication server are unreachable.

The authorization key configured on the wireless controller is inconsistent with the authentication server configuration.

Service VLAN is not configured on the wireless controller

The authentication template configured on the wireless controller is not bound to the access template

175. In the WLAN network, WLAN security provides a variety of security strategies, such as OPEN, WEP, WPA and WPA2, and each security strategy embodies a complete set of security mechanisms.

of the following security strategies has the strongest encryption?

WPA3

WEP

WPA2

WPA

176. When the engineer was inspecting the customer's wireless network, he found that the terminal failed to access the wireless network.

The possible reasons for the terminal online failure are checked through the CampusInsight protocol playback function. The terminal protocol playback is shown in the figure. Which option is wrong in the description of the terminal online failure?

Repair suggestion: Try to ping the authentication server to check whether the physical link of the authentication server is connected.

Repair suggestion: Check whether the RADIUS server template configuration parameters are consistent with the actual configuration on the RADIUS server.

The terminal has obtained an IP address through DHCP, but a failure occurs during the subsequent authentication phase

The most likely cause of the terminal going online failure is that the RADIUS server is unreachable.

177. The customer's existing network has configured inter-WAC roaming. The engineer checked the information of the roaming group on the wireless controller and found the following description of the roaming group. Which one is wrong?

The terminal can roam normally between the WACs in the above roaming groups.

The current link of WAC with IP address 192.168.10.1 is normal

There are three WACs in this roaming group.

The current link of the WAC with IP address 192.168.10.3 is disconnected

178. Which of the following descriptions of the spectrum analysis function of Campusnsight is wrong?

CampusInsight spectrum analysis is based on the full channel status monitoring capability of the A

If the wireless device does not have the channel scanning function enabled, this function cannot be realized.

CampusInsight presents real-time full-channel status monitoring based on AP granularity and supports viewing historical trend graphs

To ensure that the spectrum analysis function of CampusInsight is displayed normally, the spectrum analysis function needs to be enabled on the wireless controller in advance.

View the device spectrum analysis details on the platform, including device information, full channel status monitoring, non-Wi-Fi interference sources, Wi-Fi interference sources, and illegal devices.

179. In an enterprise office WLAN network, multiple users are connected to the 5G radio frequency of an AP. To ensure that each user occupies the wireless channel fairly, the Airtime scheduling function can be configured to schedule the wireless channel occupancy time of each user.

True

False

180. When configuring VRRP hot backup, if the HSB backup function is enabled, and WLAN services are configured on the primary and secondary WACs in sequence, it may happen that VAPs have not been created on the secondary WAC, but VAP table information has been generated on the primary WAC.

True

False

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181. In order to expand the wireless coverage area and reduce the cost of wired deployment, an enterprise adopts Mesh networking architecture to deploy WLAN network.

After the deployment is complete, the engineer runs the display mesh whitelist-profile all command, which displays the following information.

Which of the following descriptions of this network is wrong?

The Mesh whitelist template "test" is referenced twice

Users need to add the physical MAC addresses of neighboring APs that are allowed to access in the Mesh whitelist template.

The Mesh whitelist template "default" is not referenced

By default, the system has created a Mesh whitelist template named "default"

182. Which of the following descriptions about dynamic load balancing used in high-density scenarios is correct? (Multiple choice)

Load balancing is applicable to high-density wireless network environments to effectively ensure the reasonable access of STAs. The purpose of 5G priority access within four APs is to reduce the 2.4CHz load and improve the overall performance of the system.

Load balancing between APs, load balancing based on the number of access users or traffic, optimizes the distribution of terminals in the entire network and improves user experience

APs with load balancing enabled must be connected to the same AC, and STAs can scan the SSIDs of APs that perform load balancing.

Dynamic load balancing can be divided based on the number of users, traffic, and business type.

183. A customer's existing network has a blind spot in wireless signal coverage, resulting in some wired terminals being unable to access the network.

Engineers adjust the transmit power of the surrounding AF to expand the coverage and fill in the blind spots. Which of the following configuration commands for manually adjusting the AR transmit power is correct?

[WAC-wlan] ap-id1 [WAC-wlan-ap-1] radio [WACwlan-radio-1/0] calibrate auto-txpower-select enable [WAC-wlan-radio-1/0] eirp23 [ WAC-wlanradio-1/0 ] radio1 [ WAC-wlan-radio-1/1 ] calibrate auto-txpower-select enable [ WAC-wlan-radio-1/1] eirp 23

[WAC-wlan-ap-group-ap-group1] radio [WACwlan-group-radio-ap-group1/0] calibrate auto-channel-select enable [WAC-wlan-ap-group-ap-group1] radio1 [WAC-wlan-group-radio-ap-group1/1] calibrate auto-channel-select enable WAC-wlan-group-radio-ap-group1/1] quit [WAC-wlan-view] calibrate enable manua [WAC-wlan-view] calibrate manual startup

[WAC-wlan] ap-id 1 [WAC-wlan-ap-1] radio 0 [WAC-wlan-radio-1/0] calibrate auto-txpower-select disable [WAC-wlan-radio-1/0] eirp 23 [WAC-wlan-radio-1/0] radio 1 [WAC-wlan-radio-1/1] calibrate auto-txpower-select disable [WAC-wlan-radio.1/1jeirp 23

[WAC-wlan-ap-group-ap-group1] radio 0 [WAC-wlan-group-radio-ap-group1/0] calibrate auto txpower-select enable [WAC-wlan-ap-group-ap-group1] radio [WAC-wlan-group-radio-ap-group1/1] calibrate auto-txpower-select enable [WAC-wlan-group-radio-ap-group1/1] quit [WAC - wlan-view] calibrate enable manual [ W AC-wlan-view ] calibrate manual startup

184. In a WLAN network, which of the following protocols cannot work in the 2.4 GHz frequency band?

802.11ac

802.11g

802.11ax

802.11n

185. Huawei's terminal dial-up test solution is mainly used to detect Wi-Fi user experience, network quality, link status and other information.

Which of the following items are included in the terminal dial test? (Multiple choice)

Web Connectivity

Terminal signal strength

Intranet uplink rate

Internet uplink and downlink speeds

186. In WLAN network planning in crowded scenarios such as lecture halls or banquet halls, due to the large number of concurrent users, engineers will give priority to APs with fewer MIMOs but more radio frequencies when selecting AP models.

True

False

187. In the Portal authentication scenario, if the Portal server does not have a trusted security certificate installed, the terminal will not automatically pop up the authentication page

True

False

188. The acceptance index of WLAN capacity design is to ensure that the bandwidth of key services can meet the needs of concurrent users in the target area.

True

False

189. In an office scenario, 300 terminals are connected to the network, and 180 terminals generate service traffic at the same time. When both AP and terminal support Wi-Fi 6, the bandwidth requirement of a single terminal is 8Mbps. Under this bandwidth requirement, the tri-band AP (8x8 MINO) deployed can support 51 terminals (2x2 MIMO) concurrently. So for the above scenario, how many tri-band APs are needed to meet the capacity requirements of the WLAN network?

190. Which of the following statements about WLAN channel planning is correct? (Multiple choice)

The United States can plan channels 1-13 in 2.4GHz

Infrared interference needs to be considered during planning

Radar interference needs to be considered during planning

Avoid signal interference when planning

Page 20 of 20

191. In the bathroom scenario network planning plan, if the men's and women's toilets are adjacent, you can place an AP in the middle to ensure signal coverage.

True

False

192. A customer deployed Huawei's traditional wireless solution on site, with WAC managing the APs. After the engineer completed the network deployment, the user reported that the terminal roaming failed and the experience was not good.

Which of the following is not likely to be the cause of the terminal roaming failure?

The AP security profile configuration is inconsistent before and after roaming

AP signal coverage is discontinuous and there are blind spots

The user is roaming at Layer 3, but the device prohibits Layer 3 roaming

The AP data forwarding mode is different before and after roaming

193. In a Mesh network, an engineer checks the Mesh routing in WAC, and the display is as follows.

Which of the following descriptions about Mesh networking are correct? (Multiple choice)

The Mesh link between AP4 and AP3 is established using the 2.4G frequency band.

AP4 is the MPP role

AP3 is the MPP role

AP5 is the MP character

194. In a Mesh network, the successful establishment of a Mesh link includes two processes: Mesh neighbor discovery and Mesh connection management.

Which of the following are the ways to discover Mesh neighbors? (Multiple choice)

Global Scan

Passive Scanning

Local Scan

Active Scan

195. Which of the following options are correct about the advantages and disadvantages of the traditional WLAN network operation and maintenance methods and the CampusInsight intelligent operation and maintenance methods? (Multiple choice)

Campusinsight intelligent operation and maintenance can identify potential faults based on dynamic baselines, big data associations, etc.

CampusInsight intelligent operation and maintenance uses the big data platform to uniformly collect, store and analyze data, and has efficient big data processing capabilities

Traditional operation and maintenance methods cannot proactively identify and analyze issues that may affect user perception

Traditional operation and maintenance methods lack correlation analysis between users and networks and cannot accurately measure the user experience effect

196. In the VRRP hot backup scenario, if the public configuration between WACs is not synchronized, you can execute the () command on the wireless controller to manually trigger wireless configuration synchronization.

197. The weak signal terminal access control function mainly controls terminal access by configuring the terminal access signal-to-noise ratio threshold. If the configured signal-to-noise ratio threshold is 25dB and the wireless network noise floor is -95dBm, when the terminal's channel strength is lower than () dBm, that is, lower than the signal-to-noise ratio threshold, the terminal cannot access the network.

198. In a WLAN network, there are five steps in the basic process of network planning. Please sort the following steps according to the workflow.

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