2023 Updated HCIP-WLAN H12-321_V1.0-ENU Dumps Questions

Jonnie Karnath2023-07-24T07:20:28+00:00

2023 Updated HCIP-WLAN H12-321_V1.0-ENU Dumps Questions from Certspots is a comprehensive study material designed to help candidates pass the HCIP-WLAN certification exam. The H12-321_V1.0-ENU dumps questions are updated with the latest exam patterns and cover all the exam topics in detail. The study material is created by industry experts with years of experience in the WLAN domain. It is designed to provide a clear understanding of the concepts and principles covered in the HCIP-WLAN exam and help candidates prepare for the exam with confidence. With 2023 Updated HCIP-WLAN H12-321_V1.0-ENU Dumps Questions from Certspots, candidates can be assured of success in the HCIP-WLAN certification exam.

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1. Which of the following commands can be used to view the AP group or AP personality template information of the specified Mesh template

display references mesh-profile

display references ap-system-profile

display references wired-port-profile

display references radio-5g-profile

2. Which of the following descriptions is correct about the height of the antenna when WLAN is covered outdoors?

In order to ensure coverage of a larger area, the antenna should be hung as high as possible

In order to ensure that there is no black under the tower, the antenna should be hung as low as possible

The height of the directional antenna is not recommended to exceed 12m

The height of the omnidirectional antenna is recommended to exceed 12m

3. Regarding the dual-link hot standby configuration, when configuring the priority of an AC, the greater the value of the priority, the higher the actual priority of the AC.

True

False

4. In the wireless high-density access scenario, what are the main technical points used? (Multiple choice)

Use indoor antenna

Automatic packet-by-packet power control

Access restriction for low-speed users

Priority access to 5G frequency band

Maximize AP transmit power

5. Using AP8130DN to connect H33_V33_13dBi directional antenna to meet basic services such as browsing the web under FCC restrictions, what is the longest possible coverage distance?

Mobile phone 50m, laptop 80m

Mobile phone 290m, laptop 220m

Mobile phone 220m, laptop 290m

Mobile phone 80m, laptop 50m

6. Different network scenarios have different reliability requirements, so there are different backup methods to meet the needs of differentiated scenarios.

Which of the following descriptions about WLAN reliability application fields and methods are correct? (Multiple choice)

If you want to maximize the utilization of the resources of the active and standby ACs or the two-layer networking conditions cannot be met between the active and standby ACs, you can choose the dual-link hot backup mode.

If the active and standby ACs need to be deployed separately in different places and the reliability requirements are low, the dual-link cold backup method can be used

If the enterprise wants to control the cost of network deployment, N+1 backup method can be adopted

In campus network scenarios, such as enterprise and school scenarios. The reliability of the network is high, and the dual-link hot backup mode is usually adopted

7. Which of the following WLAN protocols can achieve a theoretical rate of more than 1G?

802.11a

802.11ac

802.11g

802.11n

8. The AP detects whether it has been brute force cracked by detecting whether the number of key negotiation failures in the key negotiation packet during WPA/WPA2 PSK, WAPI-PSK, and WEP-Share-Key authentication exceeds the configured threshold.

True

False

9. In a WLAN network, regarding illegal attack detection, which of the following will trigger an alarm? (Multiple choice)

Flood attack

Spoof attack

Weak IV attack

Brute force cracking

10. When PPPoE authentication is used in WLAN, it has nothing to do with the authentication encryption adopted by WLAN itself.

True

False

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11. In a point-to-multipoint networking environment, one device acts as the central device, and all other devices only establish wireless bridges with the central device.

interconnection of multiple networks. The disadvantage is that the intercommunication of multiple branch networks must pass through the central bridge device for data forwarding.

True

False

12. The Mesh network supports two routing modes: on-demand routing and on-demand routing. In the on-demand routing mode, the root node needs to periodically broadcast RANN messages to help MP nodes establish MESH routing.

True

False

13. In a large WLAN network, the user groups or accounts on the AD/LDAP server cannot be synchronized to the AGILE CONTROLLER, what are the possible reasons (Multiple choice)

There is a conflict between the user group on the Agile Controller and the target user group specified in the synchronization scope

When performing manual synchronization, periodical synchronization is being executed, causing some accounts to fail to synchronize

Adjustment of AD/LDAP server data structure results in data out of synchronization range

Synchronization scopes overlap, resulting in data synchronization to the target user group specified by the high-priority synchronization scope

14. Which of the following service model can provide end-to-end QoS service, but the scalability is not good?

Best Effort model

IntServ Model

FIFO model

Diffserv model

15. In order to solve the tunnel aggregation problem of WLAN roaming, which of the following statements is correct for the processing principles of downlink broadcast and multicast packets? (Multiple choice)

At the HAC, discard unknown unicast packets at the entrance of the roaming tunnel

At the HAC, discard the multicast or broadcast packets of ARP, ND, DHCP, and mDNS to avoid loops

The transparently transmitted broadcast/multicast packets reach the FAC, and the FAC converts them into unicast packets according to the source of the tunnel

FAP discards unknown unicast packets, and then forwards other packets to roaming STAs

16. An antenna is a device used to transmit or receive radio waves, and is an important part of a WLAN network. Which of the following descriptions about antennas are correct? (Multiple choice)

The gain is closely related to the antenna pattern, the narrower the main pattern of the pattern, the smaller the side lobe, and the higher the gain

When the orientation of the STA accessing the WLAN is quite concentrated, it is recommended to use an omnidirectional antenna

The gain of the directional antenna must be greater than that of the omnidirectional antenna port. When selecting the antenna, in order to ensure the signal quality and the budget is sufficient, the antenna with high gain should be selected as much as possible.

Under the same conditions, the higher the gain, the farther the radio wave travels

17. Which of the following statements about the role of Mesh is correct?

Mesh roles are based on radio configurations

Mesh role based on AP configuration

Mesh role based on VAP configuration

Mesh roles can be configured based on arbitrary granularity

18. Which of the following options is a typical indoor WLAN coverage scenario? (Multiple choice)

Wireless coverage in university classrooms

Wireless coverage in office buildings

Wireless coverage in university dormitories

Hotel WOC wireless coverage

19. The data forwarding methods in a large WLAN network include direct forwarding and () forwarding.

20. Which of the following descriptions about the Portal authentication process is correct? (Multiple choice)

When using the Portal authentication protocol, if there is a NAT scenario between the authentication server and the access device, user authentication will fail due to timeout

After receiving the Portal authentication request (REQ_AUTH), the Portal server will send a RADIUS authentication request (ACCESS-REQUEST) to the RADIUS server

Portal1 authentication has two trigger methods, one is active authentication, and the other is redirection authentication

When using the HTTP/HTTPS authentication protocol, if there is a NAT scenario between the authentication server and the access device, user authentication will fail due to timeout

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21. On a WLAN network with the WIDS function enabled, which devices can detect AP?

A[ssid1];

B[ssid1];

C[ssid1];

D[ssid2];

E[ssid2];

F[ssid1];

Configure the MAC whitelist to include the MAC address of AP: bc; configure the SSID whitelist to ssid2.

Which of the following detected AP devices are illegal APs? (Multiple choice)

22. As shown in the figure, in the WLAN network of a large enterprise, the network administrator of the company recently discovered that the WLAN network traffic is abnormal, and there is a delay in pinging the gateway or a large amount of packet loss. After excluding other possibilities, it is suspected that it has been attacked by an illegal network, which of the following illegal attacks is most likely?

Flood attack

Spoof attack

Weak IV attack

Brute force cracking

23. Which of the following descriptions about return-type VAP is wrong?

Complete MP Neighbor Discovery

Complete the MESH connection establishment and data return function

Realize the establishment of routing topology between nodes by forwarding routing management messages in the backhaul link

Each radio can create multiple backhaul VAPs

24. Taking 5GHz as an example, if the transmitting and receiving antennas are 5km apart, the radius of the Fresnel area is approximately?

3.6m

5.6m

9.7m

25. In smart roaming, for a terminal that does not support 802.11v or a terminal that falsely supports 802.11v, the AC notifies the current AP to log the sticky user offline, and sends a blacklist to the currently associated AP.

True

False

26. In the N+1 backup network, which of the following statements about the application of option 43 is correct? (Multiple choice)

After the option 43 field is configured, the AP will only send unicast Discovery Request packets to the AC IP addresses that pass option 43

If the AC that advertised the IP address in option 43 does not respond to the AP, the AP will fail to discover the A

To configure the option 43 field, you need to notify the AP of the IP addresses of its active AC and standby AC, and also need to notify the IP addresses of other active ACs.

The command to configure the IP addresses of the active AC and the standby AC in the option 43 parameter field of the DHCP server is option 43 sub-option 2 ip-address &

27. WLANP1aner can directly call external maps for outdoor LAN network planning. Overseas customers can use Google Maps, and Chinese customers can use Baidu Maps for planning

True

False

28. In WLAN secure access authentication technology, which method must be encrypted for air interface packets? (Multiple choice)

MAC authentication

Portal authentication

PSK authentication

Wireless 802.1x authentication

29. In the dual-link hot backup scenario, the interval between CAPWAP heartbeat detection configured by the engineer is 20 seconds. After the dual-link backup function is enabled, the AP detects the link timeout () seconds and then performs the master-standby switchover (Arabic numerals)

30. Which of the following statements is wrong about using AP6310SN to independently build a WLAN room distribution system?

The number of antennas with a single AP belt is 4~8. It is recommended that no more than 10 antennas be used under normal circumstances.

Under normal circumstances, the distance between the AP and the farthest indoor antenna should be controlled within 50 meters, and it is recommended not to exceed 60 meters

In a typical indoor distribution scenario, it is recommended that the output power of each antenna is basically the same, and the output power is controlled at 12~18dBm. The specific power selection is related to the field strength requirements and the wall structure.

There is interference between the indoor antennas of the same AP, so they cannot be densely deployed according to requirements

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31. After dual-system hot backup is configured, the main and standby channels cannot be established, and the information on the primary device cannot be backed up to the backup device normally, resulting in abnormal dual-machine hot backup function. What is the possible cause of this failure? (Multiple-choice questions)

The priority values of the two ACs are configured the same

The source IP address and source port number of the local end are inconsistent with the destination IP address and destination port number of the peer end

The retransmission times and retransmission intervals of the active and standby service packets are inconsistent

The TCP channel for sending messages in the active/standby mechanism has not been established

32. In which direction is the azimuth angle of the antenna usually 0?

due west

True North

due south

Due East

33. In smart roaming, for a terminal that supports 802.11k, when the current associated AP detects that it is a sticky terminal, it will actively trigger the terminal to perform neighbor measurement based on the 802.11k mechanism.

Regarding this measurement, which of the following information will the terminal mainly collect? (Multiple choice)

The BSSID of the AP

Signal Strength

Model of AP

The channel where the AP is located

34. Which of the following descriptions about business VAP is wrong? (Multiple choice)

Provide wireless terminal access function

Establish MESH connection

Each radio frequency can be configured with multiple, and the number is not limited

Each radio can only be configured with one

35. A WLAN engineer uses the WLAN Tester 2.0 tool to conduct site surveys. In order to quickly understand the on-site signal coverage, which of the following operations is correct? (Multiple choice)

When doing site survey, directly check the Wi-Fi signal scanning box

Reduce the current drawing scale

Before the site survey, first add AP groups to speed up the simulation

Modify the global configuration parameter simulation data processing granularity to the maximum value to speed up the simulation speed

36. In the Portal authentication process based on the HTTP/HTTPS protocol, after the user enters the user name and password on the Portal authentication page, the client initiates a Portal authentication request to the Portal server, and then the Portal server notifies the client to initiate a Portal authentication request to the AAA server.

TRUE

FALSE

37. When deploying an outdoor AP, which of the following elements need to be considered when estimating the actual height of the antenna? (Multiple choice)

The height of the obstacle

Second Fresnel Zone Radius

Radius of the first Fresnel zone

The height of the Earth's curvature

38. An antenna is a device used to transmit or receive radio waves, and is an important part of a WLAN network. The antenna lobe angle refers to the angle formed at the position dB lower than the peak value of the main stream in the antenna pattern.

39. Which of the following authentication methods can the user information synchronized by the Agile Controller be used for? (Multiple choice)

Portal authentication

802.1x authentication

Agile Controller login authentication

MAC bypass authentication

40. The picture below is a typical WLAN network diagram. Which of the following descriptions about this picture is correct? (Multiple choice)

The AP in this network diagram adopts the tunnel forwarding mode. In the tunnel forwarding mode, the wireless user service data is also encapsulated in the CAPWAP tunnel and forwarded between the AP and the A

At this time, the port number of the tunnel is UDP 5246.

Tunnel forwarding has two types of tunnels: control tunnel and service tunnel, in which signaling packets go through the control tunnel, and data packets go through the service tunnel

In the tunnel forwarding mode, the management data of the AP must be encapsulated in the tunnel of the CAPWAP protocol, and the data service flow of the AP can be encapsulated in the CAPWAP tunnel, or not encapsulated in the CAPWAP tunnel

The advantage of tunnel forwarding is: all data streams and management streams pass through the AC, which makes it easier to implement security control policies for wireless users

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41. In a WLAN network using Agile Controller as the admission controller, which of the following options are the reasons for Portal authentication failure? (Multiple choice)

The key of the Agile Controller access device is inconsistent with the key configured on the device

The billing cycle is not configured

Port 1814 is occupied on the server

Authorization rule matching is to deny access

42. As shown in the figure, in order to avoid the transparent transmission of STP messages and cause the mutual influence of the loop, which of the following does not need to enable the STP spanning tree protocol?

Only the MPP wired side needs to enable the STP function

Only the MP3 wired side interface needs to enable the STP function

Both MPP and MP3 wired side connections need to enable the STP function

MP1 and MP2 need to enable STP

43. The antenna angle refers to the angle formed by the antenna with the true north and the horizontal direction respectively, which are the azimuth angle and the downtilt angle respectively. The antenna angle is related to the antenna gain. The smaller the angle, the greater the gain.

True

False

44. When an engineer uses Agile Controller to synchronize data, he finds that some user information cannot be synchronized. The user names that cannot be synchronized are as follows: Jack=boss, Mike=leader, Mary=manager, Ann=girlfriend.

The engineer found that these user names and the user groups or OUs they belonged to did not have the same name. What is the reason for the above problems?

The username is too long

Username too short

Illegal characters appear in the user name

The user name needs to be composed of numbers and English

45. In the network shown in the figure below, the forwarding of data traffic before roaming is STA-HAP-HC-upper layer network, and the forwarding method is tunnel forwarding. After three-layer roaming, what is the direction of data forwarding traffic?

STA-FAP-FAC-HAC-Upper Network

STA-FAP-FAC-HAC-HAP-HAC-Upper Network

STA-FAP-FAC-Upper Network

STA-FAP-FAC-HAC-FAC-upper network

46. 20dBm is equivalent to () mw.

47. The relationship between the number of X1E boards on the Huawei modular switch S127xx and the scale of manageable APs is: Mac (the number of AC boards on the board x the number of APs supported by a single board, and the S127xx is the largest number of APs.

True

False

48. How to deal with a large number of devices that do not match the version of AP and AC?

Upgrade the versions to match each other

Replace the AP device

Replace the switch

Check whether the POE power supply is normal

49. Regarding the Agile Controller access model, which of the following descriptions is correct? (Multiple choice)

In the access model, the core is authorization conditions and authorization results

Currently only 802.1x and Portal authentication can support all conditions in the access model

Authorization elements do not include IP address ranges

Authorization conditions include authorization elements

50. Regarding the description of roaming, which of the following statements is correct? (Multiple choice)

The APs that realize wireless roaming must be in the same basic service set (BSS)

APs that realize wireless roaming must be in the same Extended Service Set (ESS)

APs that realize wireless roaming must have signal coverage overlapping areas

An AP that realizes wireless roaming does not need to have a signal covering the overlapping area

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51. Which two of the following authentication methods need to deploy a RADIUS server? (Multiple choice)

WEP authentication

WPA+PSK authentication

MAC authentication

WPA-EAP authentication

52. In a WLAN network with the WIDS function enabled, which of the following devices will not trigger an illegal device alarm when it is judged as an illegal device? (Multiple choice)

Ad-hoc

Wireless bridge

STA

53. How much dB is the angle of attenuation of the directional antenna for the width of the main lobe of the phenomenon?

54. As shown in the figure, there are 4 online STAs (STA1-STA4) under the AP1 radio frequency, and 1 online STA (STA5) under the AP2 radio frequency, exceeding the load balancing initial threshold of 5, the maximum associated users supported by the AP1 and AP2 radio frequencies The number is 10, and the configured load difference threshold is 10%.

When STA6 initiates a request to AP1 for the first time, which of the following statements is correct?

AP1 is preferentially calculated according to the load balancing algorithm, and STA6 is allowed to access

AP1 is preferentially calculated according to the load difference threshold algorithm, allowing STA6 to access

AP1 is preferentially calculated according to the load balancing algorithm and rejects STA6 access

AP1 first calculates according to the load difference threshold algorithm and rejects STA6 access

55. With regard to maintaining the link status of the active and standby channels, if the active and standby service message sent by the peer has not been received within the time interval multiplied by the time interval between the active and standby service messages and the number of retransmissions, the device will receive an exception notification, and prepare to rebuild the primary and secondary backup channels.

True

False

56. 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.

True

False

57. Which of the following descriptions about the steps of using the WLAN Tester2.0 tool for site survey is correct?

Create a new project ->set scale->import drawing->load network card->start->end

Create a new project->import drawing->set scale->load network card->start->dot->end

Create a new project ->import drawing->load network card-→set scale->start->dot->end

Create a new project->import drawing->set scale->start->dot->end

58. Which of the following is not an AP binding template?

RF template

AP template

ESS template

Planning sheet template

59. The AD service can provide information stored in the directory to administrators, users, network services, or applications. Which of the following statements about the AD server is incorrect?

Closely connected with DNS

Storing information about network objects

Interoperable with other directory services

Store unstructured data

60. What is the encryption technology used by CAPWAP?

WEP

TKIP

CCMP

TLS

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61. As shown in the figure, in the dual-link cold standby load sharing network, the configuration is as shown in the figure, AP1 is online, and the main line is established between AC1 and AP1, when the link between AP1 and AC1 is disconnected, under normal circumstances, at which of the following time points may master/standby switchover occur?

(Multiple choice)

120 seconds

130 seconds

145 seconds

155 seconds

62. When using the WLAN Tester 2.0 tool for data analysis, the signal strength of a certain point in the heat map refreshed by a single AP is the same as in the heat map refreshed by the overall network.

True

False

63. Through intelligent roaming, it is ensured that each terminal is associated with the nearest AP, and load balancing between APs is realized.

True

False

64. In some communication scenarios, it is particularly inconvenient to deploy wired links, then wireless links can be used for communication. What are the common technologies for using wireless road tracing for communication? (Multiple choice)

Mesh

WDS

NAC

WIDS

65. Regarding the description of configuring roaming groups, which of the following statements is wrong?

After the AC in charge of the Master Controller enables the Master Controller function, it will join the roaming group by default and can manage other ACs.

The Master Controller is issued to each managed AC through CAPWAP signaling

Master Controller is a logical role that can be assumed by any common entity AC

Each AC needs to designate an AC as its own Master Controller

66. Without considering the MIMO gain, which of the following descriptions about EIRP is correct? (Multiple choice)

In wireless communication engineering, EIRP is usually used to measure the strength of interference and the ability of a transmitter to emit a strong signal

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

EIRP represents the transmit power of the AP

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

67. When configuring WLAN services, you can associate a VLAN pool with a certain SSID, so that one SSID can support multiple service VLANs at the same time.

Which of the following descriptions about VLAN pool is wrong?

When the VLAN allocation algorithm is even, if the same STA goes online multiple times, the address obtained each time is usually different.

Multiple VLANs can be added to the VLAN pool, reducing the broadcast domain

The VLAN allocation algorithm in the VLAN pool is divided into two types: even and hash

When the VLAN allocation algorithm is hash, if the same STA goes online multiple times, the address obtained each time must be the same

68. Huawei's box-type wireless controller AC6605 supports 24 PoE interfaces, which can directly supply power to the AP connected to the AC in WLAN networking.

True

False

69. Commonly used authentication methods in EAP relay mode include EAP-PEAP, EAP-TLS and EAP-ITLS. Among them, EAP-TTLS needs to load certificates on both the client and the server, and has the highest security.

TRUE

FALSE

70. As shown in the figure below, a city will install cameras (two for each school) at the gates of multiple schools (yellow dots in the figure). This camera does not support wireless

line function, and there is only one network port, and there is no switch on site. The customer hopes to pass the IPW general L group AN: transfer 3 numbers 84 data 22 back to 8 94 to the position of Main C4 in the figure 9 (red mark), The distance between the two points connected by the red line in the figure is 3km.

Calculated according to the 2Mbps bandwidth required by each camera, there is a line-of-sight distance between the school gate and Main C4. Which of the following solutions can meet the above scenario requirements? (Multiple choice)

Each school deploys 1 AT815SN and 1 AP6510DN (with external antenna)

Each school deploys 1 AT815SN and 1 AP8030DN

Each school deploys 2 AP8130DN (with external antenna)

Each school deploys 2 AP6610DN (with external antenna)

Each school deploys 2 AP6510 (with external antenna)

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71. Which of the following descriptions about Portal authentication is correct? (Multiple choice)

The authentication-free rule template takes effect for Portal authentication users and 802.1x authentication users

Need to configure the free rule to allow the client to access the web server and DNS server

When an unauthenticated user accesses the Internet, the access device will redirect the user to the Portal authentication website; start the Portal authentication process

The web server and the access device have an authentication process to ensure that both parties are legitimate devices

72. For roaming between WACs, it is recommended to use WACs with similar specifications. The user access capabilities of different types of WACs vary greatly. When a large number of users of large-sized WACs roam to smaller-sized WACs, some users that exceed the access capabilities of small-sized WACs will fail to roam.

True

False

73. In the 5W of refined policy control in Huawei's WLAN network solution, what kind of control method does What refer to?

User role-based access control

Time-Based Access Control

Location-Based Access Control

Policy control based on terminal type

74. Which of the following certifications can achieve fast roaming?

Share-key

WPA+PSK

WPA2+802.1x

WPA2+PSK

75. In the outdoor backhaul scenario, the line-of-sight and no-interference requirements are met. When the back haul distance does not exceed 1km, the uplink bandwidth requirement is 0.5Mbps, EIRP is unlimited, the AP external antenna is 17dBi_H65°_V7.5°, and a single AP is connected What is the maximum number of AT815SN?

76. The Agile Controller must divide the devices into subgroups to facilitate rule distribution.

True

False

77. When neighbors are passively detected, what information does a legitimate AP need to collect and report to AC? (Multiple choice)

Interference between APs

Interference from rogue APs

Interference from non-Wi-Fi devices

Infrared interference

78. In a WLAN network, the Weak IV attack detection function does not need the support of the dynamic blacklist function.

True

False

79. As shown in the figure, in the dual-link cold backup network shown in the figure, STA1 is the portal online user, the main AC currently connected to AP1 is AC1, and STA1 goes online on AC1 through AP1, which of the following statements is correct? (Multiple choice)

There is information about AP1 on AC2, and the status of AP1 on AC2 is standby

There is information about AP1 on AC2, and the status of AP1 on AC2 is normal

There is STA1 information on AC2, and the status of STA1 is unauthenticated

There is no information about STA1 on AC2

80. The "5W" in "5W1H" in the Agile Controller function introduction refers to : Who accesses the network; Where accesses the network from where; When accesses; Why why accesses; What device accesses .

True

False

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81. In some special environments, many APs need to be used, and the channels cannot be completely separated. Therefore, it is possible to consider appropriately reducing the transmit power of APs to reduce the interference between signals.

True

False

82. With regard to maintaining the link status of the active and standby channels, to prevent TCP from being interrupted for a long time but the protocol stack does not detect the connection interruption, it can be prevented by sending active and standby service messages and retransmission mechanisms.

True

False

83. In the WLAN hot backup mechanism, what are the methods of data synchronization? (Multiple choice)

Batch backup

Real-time backup

Regular backup

Incremental backup

84. Which of the following servers is a directory server?

Radius server

AD server

DNS server

Portal server

85. Which of the following statements about deploying AP6310SN in warehouse coverage (AP is placed at one end of the warehouse, antenna feeder lengths are not equal) is correct? (Multiple choice)

It is recommended to use coupled

The last jump is generally connected to a 5dB coupler

It is necessary to ensure that the output power of each antenna is similar

Able to provide dual frequency coverage

86. Which of the following descriptions about the dynamic channel adjustment algorithm in Huawei's radio frequency optimization solution is wrong?

Rely on Power Scaling Algorithm

By dynamically adjusting the channel, make the AP work on the best channel as much as possible, and reduce the co-channel interference of adjacent APs

Can dynamically adjust the channel of 5G radio frequency

Can dynamically adjust the channel of 2.4G radio frequency

Rely on neighbor detection function

87. There is a string of DN codes as follows: DN: CN=Jack, OU=Enterprise, OU=Huawei, DC=AD, DC=Huawei, which of the following descriptions about this string of DN codes is wrong? (Multiple choice)

The domain name of this directory server is Huawei

This directory server is not an AD server

This string of codes represents a path

Jack represents a user or user group

88. For scenarios that require PoE power supply, the distance between the AP deployment location and the weak current room (PoE power supply end) should be considered. It is recommended that the distance be less than 80 m. If it is powered by PoE+, the distance is recommended to be less than () m.

89. In the wireless access control scenario, which of the following methods is recommended to distinguish between internal employees and external visitors?

Distinguish according to different user names

According to whether the MAC address of the wireless terminal is registered or not

Set up different SSIDs for employees and guests

According to the type of wireless terminal

90. When the engineer adjusted the directional antenna, he found that when the antenna was placed away from the other antenna, the signal would drop, and then the signal would increase slightly. What caused this increase in signal?

Signal reflection

Frequency Harmonics

Sideband

Sidelobe

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91. In the WLAN Tester2.0 tool, when adding manufacturer information to the AP group in the global configuration, how many OUs can a manufacturer correspond to?

multiple

92. In the load balancing mode, which statement is correct about the hot standby processing method of each server? (Multiple choice)

The DHCP Server and the Relay on the device will not be adaptively linked, and the Server will actively send a dhcp request protocol message to the device.

The DHCP Server and the Relay on the device can be adaptively linked, and the Server will not actively send protocol packets to the device.

RADIUS/Portal Server does not need to configure the IP address of the peer device, and the server will not actively send COA/DM or Portal logoff messages to the device

RADIUS/Portal Server needs to configure the IP address of the peer device, and the server will actively send COA/DM or Portal logoff messages to the device

93. Which of the following functions can WLAN PlannerW accomplish? (Multiple choice)

Automatic deployment of APs

Check the field strength simulation diagram

Outdoor bridge planning

Live signal scan

94. Which of the following descriptions about antenna azimuth and downtilt is wrong?

The azimuth specifies the coverage direction of the antenna

The azimuth can be understood as the angle experienced by the plane in the direction of true north rotating clockwise to coincide with the plane where the antenna is located

The downtilt affects the coverage of the antenna in the vertical direction

The downtilt is the angle between the antenna and the vertical plane

95. Regarding the MPP in the Mesh network, which of the following descriptions is correct? (Multiple choice)

Connect wireless Mesh network and other types of networks, and communicate with MP/MAP nodes inside the Mesh network

The MPP node has the Portal function. Through the MPP node, the nodes inside the Mesh can communicate with the external network

MPP nodes can also be called Mesh gateways

MPP nodes do not support redundancy

96. Wireless Mesh Network TIN (Wireless Mesh Network) refers to a star-shaped dynamic self-organizing and self-configuring wireless network that uses wireless links to connect multiple APs and finally accesses wired networks through Portal nodes.

True

False

97. In a WLAN network using Agile Controller as an admission control server, regarding authentication rules, which of the following statements is correct? (Multiple choice)

Authentication conditions must be set one by one in the authentication rules, including department, access device, SSID, etc.

When configuring the authentication rules, you can specify the account source, authentication protocol, and account binding information

If a user can match multiple authentication rules, the rule with higher priority will be matched first

The matching entries in the authentication rules do not need to be configured in advance

98. The receiving sensitivity of the antenna refers to the minimum signal receiving power of the antenna port required for the normal operation of the wireless device. Which of the following factors is the receiving sensitivity of the antenna related to? (Multiple choice)

Noise figure of the system

Modulation method

Thermal Noise Over Bandwidth

Signal-to-noise ratio required for demodulation

99. The directional antenna has strong signal strength gains in the horizontal lobe and vertical lobe, but there is no signal outside the lobe range. Therefore, it is recommended to use high-gain directional antennas to increase the coverage distance of outdoor AP.

True

False

100. In auto tuning mode, which of the following will not trigger local RF tuning?

AP goes offline

AP detects radar signal

The noise floor exceeds the threshold

Illegal AP interference exceeds the threshold

The bit error rate exceeds the threshold

AP goes online

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101. An engineer upgraded the software version of a certain AP on the AC. After the upgrade was successful, the AP went online again. The name of the AP was AP-100. In order to further confirm the reliability of the AP, the engineer observed whether the whole process of the AP going online was normal. To manually reboot the AP, which of the following command lines should be used?

[WAC] reset-ap ap-name AP-100

[WAC] ap-reset ap-name AP-100

[WAC-wlan-view] ap-reset ap-name AP-100

[WAC-wlan-view] reset-ap ap-name AP-100

102. In the reliability scenario, when the number of public configurations to be synchronized in the Master AC cache reaches 1000, the user will not be able to continue configuring the public configurations, and the configuration can only be continued after the configuration is deleted.

True

False

103. In a WLAN network, if an AC has enabled the WIDS/WIPS function and the dynamic blacklist function, and detects a flood attack, what action will the AC take in the future?

The AC adds the device to the dynamic blacklist, and the AC needs to deliver the configuration to the corresponding AP at the same time, and the AP discards the device's packets

The AP adds the device to the dynamic blacklist, and the AP directly discards the message

The AC adds the device to the dynamic blacklist, and the AP directly discards the packet

AC will not add the device to the blacklist list

104. In the WLAN network environment, after being attacked by Spoof spoofing, it is impossible to determine the attacking terminal through the MAC address.

True

False

105. Assign VLANs to terminals according to the VLAN algorithm

3-2-4-1

4-2-3-1

4-3-2-1

3-4-2-1

106. Which of the following descriptions about HSB is correct? (Multiple choice)

HSB backup can be divided into real-time backup, batch backup, scheduled backup

The HSB jumper between the active and standby ACs is used to synchronize AP status, user information, and DHCP address pool information

The default heartbeat period of the HSB channel is 1*3s, so the default service interruption time is 3s

The heartbeat time and cycle of HSB can be modified on AC

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

True

False

108. Regarding the relationship between power measurement units, which of the following descriptions is correct? (Multiple choice)

If the power of A is 26dBm and the power of B is 20dBm, it can be said that A is 6dBm larger than B

dB represents the relative value of power, 0dB represents the original power

The power of -3dBm is equivalent to one-fifth of the original power

10dBm is equivalent to ten times the original power

109. The two IPs that implement WLAN roaming must use the same SSID and security template (the name of the security template can be different, but the configuration under the security template must be the same), and the authentication mode and authentication parameters of the authentication board must also be configured the same.

True

False

110. Each MP in the Mesh network has a neighbor relationship table, which classifies the information of all neighbor nodes into which of the following categories? (Multiple choice)

Peer MP node

Other Mesh network nodes

Candidate MP nodes

Neighbor MP nodes

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111. In a customer's wireless network, Portal authentication is used for user authentication. The engineer configures Portal authentication on the Huawei wireless controller, involving Portal authentication templates, authentication-free templates, and authentication templates.

Which of the following descriptions about the certification-free template is wrong?

When multiple authentication-free rules are configured at the same time, they can take effect cumulatively and match one by one

The authentication-free template can invoke IPv4 ACL and IPv6 ACL

The authentication-free template can only release the specified IP address through ACL calls

Authentication-free authorization information is only valid for Portal authenticated users

112. When configuring the Mesh function, try to avoid using the radar channel. Otherwise, the following problems will occur: After the Mesh link is successfully established, if a radar signal appears on the working channel of the Mesh link, the Mesh link will be disconnected and normal services will be affected.

True

False

113. What does the OU in the directory server represent?

User

User Groups

Organizational unit

domain

114. At which stage of Huawei's enterprise service life cycle is the definition of user needs completed?

design

Planning

Implementation

Operation

115. In the WLAN network environment with the WIDS function enabled, the MAC addresses of the detected AP devices include: 01-01-22-22-33-3302-01-01-22-33-3302-01-01-22-33 -3402-01-22-01-01-22 The oui whitelist configured is 01-01-22. Which of the above are illegal APs? (Multiple choice)

01-01-22-22-33-33

02-01-01-22-33-33

02-01-01-22-33-34

02-01-22-01-01-22

116. External directional antennas are generally large in size and need to be connected to the RF port of the AP through a feeder line, which requires a certain construction cost and is not as beautiful as the internal antenna and the whip antenna directly installed on the AP. For aesthetic considerations (especially in coverage scenarios), it is generally recommended to use built-in or directly installed whip antennas on the AP as long as the signal transmission is satisfied.

True

False

117. Which of the following descriptions about chain networking in Mesh networking is wrong?

In a chain network environment, the user can pre-designate the neighbors connected to it

In a chain network environment, users cannot pre-designate the neighbors connected to them

The link formed between MPs can convert 802.3 packets into 802.11s packets, and then transmit them on the wireless link

In a chain network environment, there may be a single point of failure

118. The smart roaming function can prompt sticky terminals to roam to neighboring APs with better signals in a timely manner, which can improve the WLAN service experience. The following description of the smart roaming implementation strategy, which one is wrong?

For a terminal that supports 802.1v, by default, the AP attempts to relocate the STA 5 times

If a terminal will not roam to an AP with a better signal after the AP forces it offline, WAC will mark it as a non-switchable terminal, and the AP will not trigger roaming for it within a certain period of time to prevent Terminal service interruption

For terminals that do not support 802.1v, by default, the number of AP attempts to migrate STAs is 3 times

After the original associated AP before roaming is disconnected from the STA, the association request of the SAT will be temporarily suppressed to prevent the STA from associating with the original associated AP with poor signal again.

119. In the WLAN network, there are currently three different PoE standards, namely 802.3at, 802.3af and ().

120. The wireless forwarding capabilities of the following devices are from low to high, which is the correct order?

ACU2 < AC6005 < AC6605

AC6605<AC6005<ACU2

AC6005 < AC6605 < ACU2

AC6005< AC6605 = ACU2

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121. Which of the following certifications cannot support key downshifting?

Share-key

WPA+PSK

WPA+802.1x

WPA2+PSK

122. In smart roaming, 802.11k sticky terminals are not supported, and need to be scanned to obtain the information of surrounding APs to determine whether there are better neighboring APs.

True

False

123. A large enterprise needs to deploy a WLAN network. There are already Huawei modular switches (S77/97/127) in the existing network. To deploy a WLAN network, which of the following types of ACs can be inserted into the modular switch? (Multiple choice)

ACU2

AC6605

AC6005

X1E single board

124. Which of the following options is the field strength requirement for key coverage areas?

>-75dBm

>-40dBm

-40-65dBm

<-80dBm

125. Under normal circumstances, what is the attenuation of 2.4GHz at a distance of 10 meters?

71dBm

52dBm

32dB

92dB

126. Regarding the precautions for configuring HSB active and standby services, which of the following statements is incorrect?

If you want to modify, you need to delete the HSB active and standby services first, and then reconfigure

The configured HSB active/standby backup channel parameters will take effect only after the dual-system hot backup function is enabled

After the configuration is complete, you can modify the parameters of the HSB active and standby backup channels

After the configuration is completed, the parameters of the HSB active and standby backup channels cannot be directly modified

127. During the establishment of the CAPWAP tunnel. The AP judges whether the current system software version is consistent with the one specified on the AC through the parameters in the () message responded by the AC. If not, the AP starts to update the software version.

128. When using the WLAN Tester 2.0 tool, it is best to control the dot speed at 0.8m/s~1.2m/s. Which of the following statements about the dot speed is correct? (Multiple choice)

The speed is too fast, the heat map is not accurate, and the heat map may be abnormal

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

Signal collection is a process and needs enough time to save

This is to ensure that it matches the normal walking speed of ordinary people

129. Which of the following technologies are WLAN security technologies? (Multiple choice)

Access authentication

Wireless Link Encryption

WDS

WIPS

130. Which of the following options is a WLAN network attack?

WIDS

WDS

IPSG

Spoof

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131. Which third-party servers does Agile Controller support to synchronize information such as user groups and users with? (Multiple choice)

A directory server following the LDAP protocol

Microsoft AD

IBM Tivoli

SUN ONE

JIT Galaxy

132. How long is the default Beacon frame interval?

100ms

1000ms

200ms

20ms

133. Which of the following are typical methods of AP coverage in high-density venues? (Multiple choice)

Roof Covering

Base Cover

Ceiling Covering

Wall covering

134. In a large-scale WLAN three-tier network, which of the following statements about the DHCP server is incorrect? (Multiple choice)

In a large-scale WLAN network, the AP can obtain the IP address of the AC from the DHCP server through the option 60 parameter

In a large-scale WLAN network, the AP can obtain the IP address of the AC from the DHCP server through the option 43 parameter

In a large WLAN network, it is recommended to deploy an independent DHCP server

In a large-scale WLAN network, it is generally recommended to use the AC as the DHCP server

135. When the AP transmits the signal at the maximum power, the signal frequency is different, and the coverage area is also different. And the actual maximum power varies according to the regulations of different countries and regions.

True

False

136. During the STA roaming process, the AC will record the roaming track of the STA. Which of the following options is not included in the roaming track information of the terminal viewed on the AC?

The SSID currently associated with the STA

The IP address of the AP that the STA passes through

Link establishment rate between STA and AP

The signal strength of the AP passed by the STA

137. Which of the following descriptions about AP and antenna selection is correct? (Multiple choice)

In rail transit scenarios, vehicle-to-ground communication generally uses indoor APs and indoor antennas with certain shockproof capabilities to achieve signal coverage

In outdoor scenarios, outdoor APs and outdoor antennas with higher protection levels and certain lightning protection capabilities are generally used to achieve signal coverage and bridge backhaul.

In indoor scenarios, indoor APs and indoor antennas are generally used to achieve signal coverage

In rail transit scenarios, outdoor APs and antennas with higher protection levels and certain shockproof capabilities are generally used for carriage coverage

138. When a hardware failure occurs in an AP in the network, in order to avoid reconfiguring data, users can quickly complete AP replacement by configuring AP replacement.

True

False

139. A company has already deployed a WLAN network, and all APs have carried WLAN services. The company now needs to upgrade the AP version. In order to minimize the impact on users, which of the following upgrade methods is recommended?

Automatic AP upgrade

Upgrade AP online

Upgrade the AP through the AP web system

Upgrade AP through AP Boot

140. To calculate the radius of the first Fresnel zone, it is necessary to know the distance between the two antennas and the transmission signal.

Page 15 of 22

141. In the WLAN network environment using Agile Controller, regarding the 802.1x authentication failure, which of the following phenomena does not match?

Client 802.1x authentication fails

The client repeatedly disconnects after passing the 802.1x authentication

The device test-aaa login test is normal, but the authentication interface cannot be opened

Entering the correct account password always prompts that the account name and password are incorrect

142. How many mobile phones can be connected to an AP at most using the antenna angle alignment tool?

143. After enabling user CAC, it is set to limit the number of users based on the channel utilization rate. If the current channel utilization rate exceeds the configured threshold, the AP will not only reject the association of new terminals, but also kick off existing terminals. line until the channel utilization is lower than the threshold.

True

False

144. The penetration loss of the following typical obstacles, which one is correct in order from small to large?

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

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

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

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

145. In the direct forwarding mode of the WLAN network, after the user roams, the ARP entry of the access device connected to the AP does not age out in time, which will cause a short interruption of the user service. To solve this problem, which of the following commands should the engineer configure?

<WAC>system-view [WAC] wlan [WAC-wlan-view] ap-group name default [WAC-wlan-vap-group-default] undo learn-client-address ipv4 disable [WAC-wlan-vap-prof-default] quit

<TAC>system view [WAC] wlan [WAC-wlan-view] vap-profile name default [WAC-wlan-vap-prof-default] learn-client-address ipv4 disable [WAC-wlan-vap-prof-default] quit

<WAC>system-view [WAC] wlan [WAC-wlan-view] vap-profile name default [WAC-wlan-vap-prof-default] undo learn-client-address ipv4 disable [WAC-wlan-vap-prof-default] quit

<WAC>system-view [WAC] wlan [WAC-wlan-view] ap-group name default [WAC-wlan-vap-prof-default] undo learn-client-address ipv4 disable [WAC-wlan-vap-prof-default] quit

146. In the MESH networking, which of the following descriptions about AP wired port configuration information is wrong?

By default, the wired port of the AP only allows VLAN 1 to pass through.

The wired port connecting MPP and WAC must work in root mode

A maximum of 256 VLANs can be added under the AP wired port

When the wired port of the AP works in endpoint mode, it can directly connect to the host or deploy a layer-2 network

After changing the working mode of the AP wired port, you need to execute the command ap-reset to reset the AP to take effect

147. The omnidirectional antenna is shown as () degrees on the horizontal direction diagram.

148. When AD9430DN-24 is deployed in the project, when the remote access unit R240D is installed beyond the PoE power supply distance, it can be extended with a switch.

True

False

149. In a WLAN network using Agile Controller as an admission controller, which of the following statements about the pre-authentication domain is correct? (Multiple choice)

The configuration method of the pre-authentication domain is the same as that of the post-authentication domain

If you use ACL to match the pre-authentication domain, you need to use user ACL

There are two configuration methods for the pre-authentication domain, one is to call the ACL, and the other is to directly add authentication-free rules

The addresses that need to be released in the pre-authentication domain are generally anti-virus gateways, firewalls, and mail servers

150. In the common roaming scenario of the terminal, whether the STA roams is ultimately determined by the STA, and the STA mainly decides whether to associate with other APs based on the signal strength or transmission rate.

True

False

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151. In a WLAN network, the Spoof spoofing attack packets mainly include which of the following two types of packets? (Multiple choice)

Broadcast type disassociation frame Disassociation

Broadcast type deauthentication frame Deauthentication

Unicast disassociation frame Disassociation

Unicast deauthentication frame Deauthentication

152. In the 3-hop co-frequency chained Mesh, assuming that the throughput of the MPP is 60Mbps, and the throughput of each MP is the same, what is the throughput of each MP?

5Mbps

10Mbps

15Mbps

20Mbps

153. Regarding the 802.1X authentication mode, which of the following descriptions is correct? (Multiple choice)

On the same interface, both port-based and MAC-based modes can be enabled

MAC-based mode is more secure than port-based mode

Port-based mode is more secure than MAC-based mode

802.1x authentication mode is divided into interface-based and MAC-based

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

The CAPWAP disconnection service maintenance feature can realize the normal forwarding of data packets for online users when the AC fails.

After the CAPWAP link is disconnected, the feature of allowing new users to access the AP is also allowed to be valid in the tunnel forwarding mode.

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

The dual-system hot backup of HSB+VRRP can realize two high-reliability mechanisms of active backup mode and load sharing mode

155. During the roaming process, which packets may be improperly processed may cause tunnel aggregation problems? (Multiple choice)

Unknown unicast b. broadcasting

Multicast

156. Regarding the default configuration of common parameters of dual-link cold backup, which of the following statements is correct?

AC global priority is 0

AC personality priority is 0

The dual-link backup switchback function is not enabled

Enable dual-link backup function

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

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

Divide one signal into multiple outputs on average

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

Connect the RF port of the AP to the antenna port

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

The management VLAN is responsible for transmitting packets forwarded through the CAPWAP tunnel, so the management VLAN must be VLAN 1

When using tunnel forwarding, the management VLAN and service VLAN cannot be the same VLAN

When using tunnel forwarding, the management VLAN and service VLAN can be the same VLAN

When deploying authentication-based user VLAN, it should be used in combination with user group authorization technology

159. Regarding the establishment process of the backup CAPWAP link, which of the following statements is correct? (Multiple choice)

The AP and AC establish the primary tunnel and the backup tunnel at the same time and complete the configuration delivery

The AP sends a broadcast Discovery Request message to the standby AC

The Join Request sent by the AP will carry a custom message type, telling the standby AC that the configuration has been delivered and there is no need to send it again

When the AC receives the Join Request and obtains the custom message, it will skip the configuration delivery process during the configuration delivery phase to avoid repeatedly delivering configurations to the A

160. Which of the following commands can be used to create a radio frequency tuning template?

[AC-wlan-view] rrm-profile name wlan-net

[AC-wlan-view] regulatory-domain-profile name domain1

[AC-wlan-view] wired-port-profile name wired-port

[AC-wlan-view] ap-system-profile name mesh-sys

Page 17 of 22

161. A wireless AP and a wireless terminal support MIMO 2*2. When the AP works in HT20 mode, which of the following data is closest to the actual test throughput of the wireless terminal (the terminal is in the key coverage area)?

30Mbps

90Mbps

150Mbps

300Mbps

162. Which of the following messages can the AC determine whether the user is roaming?

Authentication Request

Association Request

Probe Request

Beacon

163. The AP will periodically send Discovery Request messages to detect the status of the original primary link. When the link is restored, the AP detects that the priority of the link is higher than that of the current primary link, and triggers a switchback. In order to avoid frequent switching caused by network vibration, after waiting for 6 echo cycles, the AC is notified to perform active/standby simultaneous switching, and at the same time, the AP sends the data services of the STAs to the newly upgraded AC.

True

False

164. Which of the following descriptions about the relevant information before and after STA roaming is correct? (Multiple choice)

STAs can be associated with different SSIDs before and after roaming

The AP can work in different frequency bands before and after roaming

The AP can work on different channels in the same frequency band before and after roaming

STA can obtain different network authorizations before and after roaming

It can work in different payment forwarding modes before and after roaming

165. Which of the following behaviors is a WLAN network security threat?

Weak IV attack

WDS

WIDS

WIPS

166. You can use the CloudCampus APP to output the acceptance report.

True

False

167. Which of the following common WLAN tools can obtain the signal strength of the AP? (Multiple choice)

wirelessMon

inSSIDer

Omnipeek

Huawei WLAN Tester

168. Which of the following authentication methods does the AP allow new users to access after the CAPWAP link is disconnected? (Multiple choice)

Web Portal authentication

Shared Key Authentication

802.1x authentication

WPA/WPA2-PSK authentication

169. Regarding the role of each role in the Portal authentication architecture, which of the following descriptions is correct? (Multiple choice)

The RADIUS server saves information such as user name and password for authentication of access users

The Portal server saves information such as user name and password for authentication of access users

The RADIUS server is used to push the Portal authentication page to the user

The Portal server is used to push the Portal authentication page to the user

170. When a user goes online, it is convenient to find out which AC the user is currently online, so as to obtain user data. To quickly know which AC the user is currently online on, each AC needs to save the online status of all ACs and all users in the roaming group.

True

False

Page 18 of 22

171. Which of the following antenna types are commonly used outdoor long-distance (greater than 3 kilometers) backhaul leaf node antennas? (Multiple choice)

5G_5dBi_H360°_V20

5G_19dBi_H15°_V15°

5G_27dBi_H5°_V5°

5G_7dBi_H360°_V25°

172. Which of the following factors do engineers need to consider when determining the installation height of an antenna in a long-distance point-to-point scenario? (Multiple choice)

Signal transmission frequency

Distance between transmit and receive antennas

Antenna beamwidth

Earth curvature

173. What is the internal loop breaking method of the Mesh network? (Multiple choice)

STP

TTL

Duplicate frame number detection

MSTP

174. In AP-based load balancing, which description is correct about the dynamic load balancing? (Multiple choice)

Dynamic load balancing solves the problem of limited number of members in static load balancing

The number of members in dynamic load balancing is the same as the number of members in static load balancing

Each member in the balancing group of dynamic load balancing is automatically configured or can be a different frequency band

Each member in the balancing group of dynamic load balancing can be automatically configured but must be in the same frequency band

175. Which of the following descriptions about Huawei’s packet-by-packet power adjustment function are correct? (Multiple choice)

Turn on packet-by-packet power adjustment, which will help improve user access security

Turn on packet-by-packet power adjustment, which is beneficial to improve the actual data transmission efficiency

Turn on packet-by-packet power adjustment to help avoid mutual interference between APs

Turn on packet-by-packet power adjustment, which helps save AP energy consumption

176. Which of the following statements about WDS is correct? (Multiple choice)

Connect two independent LAN segments through a wireless bridge and provide data transmission between them

WDS uses the 2.4GHz frequency band as the bridge frequency band by default

Good scalability, and no need to lay new wired connections and deploy more APs

Huawei indoor AP does not support the WDS function

177. During the maintenance phase of the CAPTAP tunnel, WAC and AP exchange Echo messages (UDP port number is 5246) to detect the connection status of the control tunnel.

True

False

178. The attenuation value of obstacles can be calculated by subtracting the two

1234

2143

1324

2134

179. Which of the following is most suitable for deploying WLAN using indoor distribution?

Plant

Office

Square

University single-row dormitory

180. The working mode of the radio is configured as monitor mode. If WDS or Mesh service has been deployed, the actual effective mode of the radio is normal mode.

True

False

Page 19 of 22

181. In a large WLAN network, the administrator needs to view the roaming track of a certain STA (the MAC address of the STA is aaaa - bbbb - cccc), the command line that should be used is (WAC) () (the full name of the command line, lowercase English)

182. Which of the following descriptions about sticky terminal detection is wrong?

When the detection results of five consecutive detection cycles are less than the set roaming threshold, the AP considers the current terminal to be a sticky terminal

The AP periodically detects the SNR of the currently associated terminal to identify sticky terminals

For the measurement of terminals that do not support 802.11k, the AP will actively switch channels to listen to the terminal and collect terminal information

For a terminal that supports 802.11k, when the current associated AP detects that the terminal is sticky, it actively triggers the terminal to perform neighbor measurement based on the 802.11k mechanism

183. WLAN surveyors can add Pins to positions where special information needs to be recorded during the process of using the WLAN Survery Pad site survey tool. The Pin label supports five major functions: view record, photo, text record, voice record and delete mark.

True

False

184. In the scenario covered by the 2.4G frequency band, when the channels cannot be staggered from 1, 6, and 11, methods 1, 5, 9, and 13 can be used for processing (provided that the country supports channels 1-13).

True

False

185. What is the advantage of WLAN Mesh network compared to traditional wireless local area network? (Multiple choice)

Coverage limitations are broken

Reduce reliance on wired networks

Stronger wireless signal

The AP or AC that supports Mesh devices is more powerful

186. Dynamic load balancing limits the number of AP radios to a maximum of 16, and only radios in the same frequency band are allowed to join the load balancing group.

True

False

187. An engineer configures the smart roaming policy as follows, so which of the following configuration is wrong?

System-view

[WAC] wlan

[WAC-wlan-view] rrm-profile name Smart-roam

[WAC-wlan-rrm-prof-Smart-roam] undo smart-roam disable

[WAC-wlan-rrm-prof-Smart-roam] smart-roam roam-threshold check-rate check-snr

[WAC-wlan-rrm-prof-Smart-roam] smart-roam roam-threshold snr 25

[TAC-wlan-rrm-prof-Smart-roam] smart-roam roam-threshold rate 30

[TAC-wlan-rrm-prof-Smart-roam] smart-roam snr-margin high-level-margin 16 low-level-margin 8

[WAC-wlan-rrm-prof-Smart-roam] quit

If the terminal rate is lower than 30% of the maximum rate, the smart roaming condition is met

Smart roaming is triggered by detecting terminal $R and detecting terminal speed

If the signal-to-noise ratio of the terminal is higher than 25dB, the smart roaming condition is satisfied

The high difference threshold that triggers STA roaming guidance is 16B, and the low difference threshold is 8B

188. In the network access control system, the access device and the authentication server usually use the RADIUS protocol to communicate. Which of the following descriptions about the RADIUS protocol is correct? (Multiple choice)

The authentication and authorization of the RADIUS protocol cannot be separated

The RADIUS protocol does not support the authorization of configuration commands on the device

RADIUS protocol is based on UDP protocol

The RADIUS message is composed of a message header and a certain number of attributes (Attribute).

The RADIUS protocol does not have the function of packet loss retransmission

189. An antenna is a device used to transmit or receive radio waves, and is an important part of a WLAN network.

Which of the following statements about antenna gain is false?

In general, the conversion relationship between dBd and dBi is: dBd=dBi+2.15

Under the same conditions, the higher the antenna gain, the farther the distance of radio wave propagation

The parameters that represent the antenna gain are dBd and dBi, which are relative values, not absolute values

dBi is usually used to represent the gain of a point source antenna

190. Which of the following descriptions about AP deployment principles in network planning are correct? (Multiple choice)

AP deployment away from interference sources

Ensure that the front of the built-in antenna AP faces the coverage target area

Minimize the number of signals passing through obstacles

In order to ensure the beauty, try to install it in a hidden place

AP installation position is far away from the column

Page 20 of 22

191. When designing outdoor network planning for WLAN, the coverage area needs to be considered according to the EIRP restrictions of each country. In the case of considering MIMO gain, which of the following options is the calculation method of EIRP?

AP transmit power + antenna gain - feeder attenuation

AP transmit power - antenna gain - feeder attenuation

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

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

192. When a user accesses a WLAN network, if the WPA/WPA2-802.1X security policy is used, open system authentication is used in the link authentication stage, 802.1 authentication is used in the access authentication stage, and the encryption algorithm can only use AES.

TRUE

FALSE

193. If the engineer manually increases the roaming sensitivity of the wireless network card of the STA, which of the following effects can be achieved?

Let STA actively select the optimal channel to connect to nearby APs

Enable the STA to automatically increase the transmit power during active roaming to improve the success rate of roaming

Make STA more actively roam to nearby APs with better signals

Make STA preferentially use Wi-Fi 6 protocol to connect to nearby APs

194. In the antenna angle alignment aid tool, how much does the progress bar of RSSI turn red, which means the signal is too strong?

195. The radio frequency optimization solution can optimize the WLAN network. Which of the following is not a function of radio frequency optimization?

Dynamically adjust the bandwidth of 5G

Dynamic channel adjustment

Dynamic power adjustment

Dynamically adjust the bandwidth of 2.4G

196. There are many types of synchronization in Agile Controller, among which synchronization by OU is the most commonly used type of synchronization. After using this type of synchronization, which of the following information will be synchronized to AgileController? (Multiple choice)

User information on the directory server will be synchronized

The OU information on the directory server will be synchronized

The domain information of the OU on the directory server will be synchronized

User group information on the directory server will be synchronized

197. Which of the following statements about the functions of the WLAN Survey PAD site survey tool is correct? (Multiple choice)

The floor attribute is set for some basic information of this floor, which has great reference value for choosing the installation method of AP in the future planning

The surveyor selects the AP hotspot to enter the testing process, locates the approximate location of the interference source by moving to see the change of the field strength value, and then enters the distance to calculate the power of the interference source

Obstacle classification is mainly to draw the types of existing obstacles on the drawing

The scale function is to let the site surveyor know the scale of the drawing more accurately

198. Compared with 802.11a/b/g, the technical advantages of 802.11n include which of the following aspects?

The maximum theoretical transfer rate is increased to 600Mbps

Backward compatible with 802.11a/b/g protocol

Support MIMO technology

The other three items are correct

199. As shown in the figure, when configuring the Agile Control1ler to connect to AC6005, the first step is to add a device, so which of the following is the IP address 12.16.1.2 of the device?

The address of AC, that is, the address of AC obtained by A from ptin43

The switch is connected to the IP address of Agi1=cmx011ex

AF service VIAN gateway address

Agi1eControll= the address of the same VLAN as the AC is interconnected with the switch

200. In Huawei’s radio frequency optimization system, the neighbor detection methods include active detection and passive deep detection. During the passive detection process, the AP may collect some information and report it to? (Multiple choice)

Bluetooth Interference

Interference between legitimate APs

Interference from rogue APs

Microwave Interference

Infrared Interference

Page 21 of 22

201. Which of the following descriptions about the 802.11v protocol is wrong?

802.11v is a protocol about WLAN network management, which can manage terminals in multiple dimensions

For terminals that do not support the 802.11v protocol, the smart roaming function does not take effect

The 802.1v protocol has been optimized for energy saving in many aspects, enhancing the battery life of the terminal

By using the BSS conversion management mechanism in the 802.11v protocol, STA can roam to a better AP

202. When a large enterprise deploys a WLAN layer-3 network, it uses the core switch as the OHCP Server, and notifies the AP of the IP address of the YAC by configuring the Option43 field. The IP addresses of the WAC are 10.23.57.254 and 10.23.57.253. Which configuration is correct?

option 43 sub-option 2 ip-address 10.23.57.254, 10.23.57.253

option 43 sub-option 2 ascii 10.23.57.254, 10.23.57.253

option 43 sub-option 1 hex 0A1739FEOA1739FD

option 43 hex 0A1739FEOA1739FD

203. In WLAN intelligent roaming, what is the mechanism time for user blind cut protection?

20 minutes

30 minutes

60 minutes

15 minutes

204. In general, 1/2 feeder is recommended for indoor distribution system main line or long-distance (greater than 50 meters) transmission considering signal attenuation; branch line or short-distance transmission is convenient for installation and construction, and 1/2 ultra-flexible feeder is recommended.

True

False

205. Regarding the triggering mechanism of 802.1x authentication, which of the following descriptions is correct? (Multiple choice)

The 802.1x authentication trigger can only be initiated by the client

802.1x authentication cannot be initiated by an authentication device (such as an 802.1x switch)

The 802.1x client can trigger authentication by multicast or broadcast

The authentication device can trigger authentication in multicast or unicast mode

206. What kind of wireless frame does the AP use when countering illegal terminals?

Disassociation frame

Probe frame

Beacon frame

Deauthentication

207. 400mW=( )dBm

208. Regarding the description of the AP9330DN feeder, which of the following statements is wrong? (Multiple choice)

The 5GHz attenuation value of the same length feeder is less than the 2.4GHz attenuation value

Under the same AP9330DN, all feeders need to keep the same length

There are 4 types of feeders, which cannot be made on site

The 5GHz attenuation value of the same length feeder is greater than the 2.4GHz attenuation value

209. In a WLAN network, which of the following illegal attack detection needs the support of the dynamic blacklist function? (Multiple choice)

Flood attack detection

Spoof attack detection

Weak IV attack detection

Anti-brute force cracking

210. Which of the following descriptions about Mesh profile is wrong?

In a Mesh BSS, all Mesh STAs have the same Mesh profile. Mesh profiles are considered consistent if all parameters in the mesh profile are matched

Mesh profile includes the following content, Mesh ID, A path selection protocol identifier (fixed), A path metric identifier (fixed)

After establishing a Mesh BSS or becoming a BSS member, a Mesh STA will generate a Mesh profile

Unless the Mesh profile leaves the Mesh BSS (the Mesh STA is already a member of the Mesh BSS), the Mesh STA will not change its Mesh profile

Page 22 of 22

211. Which of the following two APs are Huawei outdoor APs? (Multiple choice)

AP6610DN

AP6310SN

AP5010DN

AP6510DN

212. For business promotion, a large shopping mall deploys a Portal authentication strategy in the WLAN network of the shopping mall. Engineers use Agile Controller as the Portal authentication server and RADIUS authentication server.

Which of the following attributes does the authorization policy issued by the Agile Controller to the access control device support during Portal authentication? (Multiple choice)

Dynamic ACLs

VLAN ID

User group ID

ACL ID

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2023 Updated HCIP-WLAN H12-321_V1.0-ENU Dumps Questions

2023 Updated HCIP-WLAN H12-321_V1.0-ENU Dumps Questions

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