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H12-351_V1.0 HCIE-WLAN (Written) V1.0 Questions and Answers

Questions 4

In Huawei ' s smart roaming solution, which of the following factors does not need to be considered when the WAC selects a roaming target for a STA?

Options:

A.

AP Ioad

B.

APSNR

C.

AP transmit power

D.

STA access rate

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Questions 5

Drag the reasons for AP onboarding failures on the left to the corresponding troubleshooting operations on the right.

Options:

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Questions 6

In on-demand routing mode on a mesh network, which of the fallowing types of frames is broadcast by the source node to establish a route to the destination node?

Options:

A.

DHCP

B.

DNS

C.

PREP

D.

PREQ

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Questions 7

Which of the following statements about VXLAN is false?

Options:

A.

A Layer 2 VXLAN gateway forwards traffic to a VXLAN network and can also be used for Intra-subnet communication on the same VXLAN network.

B.

Layer 2 and Layer 3 VXLAN gateways must maintain VBDIF interfaces. Otherwise, users cannot communicate with each other through these interfaces.

C.

A VBDIF interface is a logical interface created based on a BD. It is similar to a VLANIF interface on a traditional network.

D.

A Layer 3 VXLAN gateway is used for inter-subnet communication on a VXLAN network and communication with external non-VXLAN networks.

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Questions 8

Which of the following is used for wireless positioning based on the signal propagation time?

Options:

A.

TOF

B.

TOA

C.

TDOA

D.

TDOF

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Questions 9

Huawta WACs support the setting of the RTS/CTS threshold. If the packet length exceeds the threshold, the AP sends RTS frames to clear the channel before sending data frames. If the packet length is less than the threshold, the AP does not use this mechanism. This prevents conflicts caused by hidden STAs.

Options:

A.

TRUE

B.

FALSE

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Questions 10

Sticky STAs always associate with the AP that they initially connect to and da not proactively roam to a better one. Which of the following roaming optimization technologies is used to resolve the sticky STA problem?

Options:

A.

802.11r fast roaming

B.

Smart roaming

C.

Fast roaming using PMK caching.

D.

Agile distributed SFN roaming

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Questions 11

Which of the following Huawei ' s CloudCampus wireless positioning solutions provides the highest positioning accuracy while meeting specified network planning conditions?

Options:

A.

Bluetooth terminal navigation

B.

UWB positioning

C.

Wi-Fi terminal positioning

D.

Bluetooth tag positioning

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Questions 12

Which of the following statements are true about directional and omnidirectional antennas?

Options:

A.

Omnidirectional antennas are preferred to directional antennas.

B.

If a long coverage distance is required, omnidirectional antennas are preferred,

C.

Omnidirectional antennas are easier to plan than directional antennas.

D.

Directional antennas are more suitable for signal coverage in a pedestrian street.

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Questions 13

Which of the following statements are true about the WLAN site survey In different typical scenarios? (Select All that Apply)

Options:

A.

In a classroom scenario. If the walls are made of reinforced concrete, the signal attenuation Is high. In this case, you are advised to test the attenuation during the site survey. Additionally, pay attention to the locations of ELV rooms in the teaching building.

B.

In an office scenario, the load-bearing columns and partitions affect the signal coverage. If an integrated ceiling is used, deploy APs near maintenance entrances. If a metal ceiling is used, mount APs on the ceiling or wall.

C.

In a ward-round scenario, high requirements are posed on the coverage field strength, roaming effect, and bandwidth. Determine the interference of medical equipment and the areas where Wi-Fi signals are not allowed.

D.

In a stadium scenario, the onsite environment is complex and cabling is difficult. Therefore, confirm with the property management company about ELV rooms and cabling. If the transmission distance is too long, consider deploying more switches. During the survey, focus on the interference between APs and AP mounting modes.

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Questions 14

When planning WLAN outdoor coverage using external 2.4 GHz omnidirectional antennas with 3 dBi gain, what is the recommended coverage radius?

Options:

A.

80-100 m

B.

150-200 m

C.

30-50 m

D.

200-250 m

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Questions 15

Drag the Huawei ' s wireless positioning solutions on the left to their corresponding features and application scenarios on the right.

Options:

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Questions 16

No data is displayed on the Telemetry management page of (Master NCE-Campuslnsight. Which of the following are possible causes?

Options:

A.

Telemetry data reporting is no: configured on the device according to the guide.

B.

No license file is imported.

C.

The UTC lime on the device is inconsistent with that on iMaster NCE-Campuslnsight.

D.

The device is not added to iMaster NCE-Campuslnsight.

E.

The network between the device and iMaster NCE-Campuslnsight is disconnected.

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Questions 17

Which of the following encapsulation formats are used for EAP termination in 802.1X authentication? (Select All that apply)

Options:

A.

EAP-TLS

B.

EAPoL

C.

EAPoR

D.

EAP

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Questions 18

The WAC supports the URL filtering functions. When users send HTTP or HTTPS requests for accessing URLs, URL filtering can be used to permit, generate alarms for, or block the requests. To match all URLs ended with aspx, such as www.example.com/news/solutions.aspx, www.example.com/it/price.aspx, and 10.1.1.1/sports/abc.aspx, which of the following URL matching items should be set?

Options:

A.

Aaspx

B.

#aspx

C.

*aspx

D.

$aspx

E.

.aspx

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Questions 19

When an 802.IX client uses MDS encryption, the user authentication mode can be set to EAP or CHAP on the device. When an 802. IX client uses PEAP authenticatwn, the user authentication mode can be set

to______on the device. (Enter the acronym in uppercase letters.)

Options:

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Questions 20

Differentiated network planning needs to be performed to meet requirements of different IoT services in Huawei ' s CloudCampus loT solutions. Drag the solutions on the left to their corresponding network planning suggestions on the right.

Options:

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Questions 21

Which of the followings is an IPv6 multicast address?

Options:

A.

2222::11

B.

FF02::18C

C.

FE80:: A

D.

FC00::1

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Questions 22

After multicast-to-unicast conversion is enabled on an AP ' s air interface, which of the followings is the destination MAC address of multicast packets sent over the air interface?

Options:

A.

Multicast MAC address

B.

MAC address of the multicast source

C.

Broadcast MAC address

D.

MAC address of a STA

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Questions 23

In mesh networking, APs have different roles. Drag the AP roles on the left to the role descriptions on the right.

Options:

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Questions 24

An engineer configures the following radio calibration commands on a Huawei WAC. Which of the following statements are true about these commands?

Options:

A.

The engineer manually configures die dynamic bandwidth selection (DBS) function.

B.

The engineer manually configures the transmit power control (TPC) function.

C.

The engineer manually configures the receive power control (RPC) function.

D.

The engineer manually configures the Dynamic Channel Assignment (DCA) function.

E.

In the default AP group, the DBS function is enabled by default.

F.

In the default AP group, the DCA function is enabled by default.

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Questions 25

What are the disadvantages of using a standalone WAC, instead of the native WAC, to deploy a wireless network?

Options:

A.

More possible failure nodes

B.

Dispersed wired and wireless policy control points

C.

Separated wired and wireless management

D.

Separated authentication for wired and wireless access

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Questions 26

Master NCE-Campuslnsight can comprehensively record and analyze Interference. Which of the following parameters are recorded? (Select All that Apply)

Options:

A.

Recommended channels

B.

Interference fulfillment rate

C.

Interference strength

D.

Number of interference SSIDs

E.

Air interface congestion fulfillment rate

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Questions 27

Sticky STAs stick to the initially associated APs. Even if the STAs are far away from the currently associated AP, have weak signals, or have low rates, they will not roam to neighboring APs with better signals.

Options:

A.

TRUE

B.

FALSE

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Questions 28

In a dual-link backup scenario, the active/standby link switchover mode is set to priority. When the active link recovers, the AP detects that the original active link has a higher priority and triggers a switchback. How many Echo intervals does the AP wait for before switching back to the original primary WAC?

Options:

A.

20

B.

10

C.

15

D.

5

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Questions 29

Smart roaming enables STAs to promptly roam to neighboring APs with better signals, improving the WLAN roaming experience. When the WAC detects a sticky STA. it immediately triggers a smart roaming policy to enable the STA to associate with a better AP.

Options:

A.

TRUE

B.

FALSE

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Questions 30

802. 11r fast roaming (over-the-air) is enabled on the WLAN shown in the figure. A STA roams from AP1 to AP2. Sort the steps in chronological order during the 802.11r fast roaming process between WACs.

Options:

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Questions 31

802.IX is a port-based network access control protocol. The 802.IX client must support the______protocol. (Enter the acronym in uppercase letters.)

Options:

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Questions 32

In 802. IX authentication, if the RADIUS server has insufficient processing capability to parse a large number of EAP packets and complete authentication, the EAP______mode should be used. (Enter only lowercase letters.)

Options:

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Questions 33

An AP may preferentially use the BTM mode to steer some STAs. With which of the following protocols are such STAs compliant?

Options:

A.

802.11k

B.

802.11i

C.

802.11r

D.

802.11v

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Questions 34

Which of the following statements about attack defense is true?

Options:

A.

Defense against flood attacks can be used to defend against Ping of Death attacks.

B.

Attack defense allows APs to analyze the contents and behaviors of incoming packets on ports to determine whether packets have attack characteristics. The APs then take defense measures on the packets that have attack characteristics.

C.

Attack defense can defend against spoofing packet attacks, malformed packet attacks, fragmentation attacks, and flood attacks.

D.

Fragmentation attack defense enables a device to detect packet fragments in real time and discard or rate-limit them to protect the device.

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Questions 35

IPv6 addresses can be classified into multiple types. Which of the following is an IPv6 multicast address?

Options:

A.

FF02::18C

B.

FCO0::1

C.

FE80::A

D.

2222::11

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Questions 36

Which of the following user access authentication modes are supported In Huawel ' s CloudCampus Solution? (Select All that Apply)

Options:

A.

802. IX authentication

B.

MAC address authentication

C.

Portal authentication

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Questions 37

Assume that a large enterprise needs to deploy a WLAN to provide wireless access for both employees and guests. However, guest data may pose security threats on the network. Which of the following networking modes is applicable to this scenario?

Options:

A.

Navi WAC Networking

B.

Leader AP networking

C.

Mesh networking

D.

Fat AP networking

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Questions 38

When a Huavrei WAC functions as an AAA server, it is called a local AAA server. A local AAA server supports authentication and authorisation but not accounting.

Options:

A.

TRUE

B.

FALSE

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Questions 39

Which of the following statements is false about WIDS/WIPS?

Options:

A.

After air scan is enabled, you are advised to use an independent radio for air scan if latency-sensitive services, such as video conferencing, are running on the network.

B.

If WIDS is configured on an AP radio, the radio cannot be used to set up a WDS bridge or mesh link.

C.

In HSB scenarios, WIDS entries on the active WAC can be backed up to the standby WAC

D.

When an AP works in normal mode, the delay may increase instantaneously during the radio scan period.

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Questions 40

Which of the following statements is true about the networking between WLAN users and mDNS service providers?

Options:

A.

It must be a Layer 2 network.

B.

It must be a Layer 3 network.

C.

It must be a Layer 3 network with an mDNS relay deployed.

D.

It must be a Layer 2 network with an mDNS gateway deployed.

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Questions 41

After adaptive multicast-to-unicast conversion is enabled on a WAC, an AP will automatically switch the multicast group containing the minimum number of terminals to the unicast mode if the air interface performance becomes a bottleneck during multicast-to-unicast conversion.

Options:

A.

TRUE

B.

FALSE

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Questions 42

Which of the following statements are true about network optimization measures?

Options:

A.

Loops may occur if Ethernet cables are incorrectly connected to wall plate APs. In this case, loop detection can be enabled on the wired interfaces of APs to automatically block the interfaces once a loop is detected.

B.

It is recommended that the Beacon interval be adjusted based on the number of VAPs. A long interval increases the sleep time of STAs, and a short interval increases the air interface overhead.

C.

It is recommended that multicast packet suppression be enabled when multicast services are planned on the network.

D.

The rate limit for STAs can be set based on customer requirements. In most cases, 10 Mbps bandwidth for uplink and downlink traffic can support common Internet access applications.

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Questions 43

Which of the following statements about WLAN roaming and signal strength Is false?

Options:

A.

Smart roaming can be enabled on the WAC to help ST As roam and associate with APs with better signals.

B.

Generally, a STA roams when it detects that the signal strength is less than -75 dBm.

C.

STAs can roam between WACs in dual-link HSB mode.

D.

In most cases, the signal strength of a STA should range from -45 dBm to -65 dBm.

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Questions 44

Multicast addresses are Class D addresses, and can be used only as destination addresses but not source addresses of data packets.

Options:

A.

TRUE

B.

FALSE

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Questions 45

EDCA parameters are used to control channel resource competition between APs and STAs. In high-density scenarios, EDCA parameter adjustment can reduce collision.

Options:

A.

TRUE

B.

FALSE

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Questions 46

When planning a WLAN using the WLAN Planner, which of the following properties can be set for interference sources?

Options:

A.

Installation mode

B.

Frequency band and bandwidth

C.

Antenna properties

D.

Mounting height

E.

Channel and power

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Questions 47

In N4 1 backup mode, multiple primary WACs share one backup WAC, but an AP has only one primary WAC and one backup WAC.

Options:

A.

TRUE

B.

FALSE

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Questions 48

In cloud-based WAC management, d ' ter WACs register with iMaster NCE-Campus. administrators can remotely manage and control WACs and their connected Fit APs on enterpnse networks, enabling automatic deployment, service provisioning, monitoring, and OS.M of wireless networks. The WAC can obtain the IP address of iMaster NCE-Campus through multiple methods. Sort the methods in descending order of priority.

Options:

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Exam Code: H12-351_V1.0
Exam Name: HCIE-WLAN (Written) V1.0
Last Update: Aug 21, 2026
Questions: 163
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