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Huawei H12-351_V1.0 Dumps

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Total 163 questions

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

Question 1

Which of the following parameters can be allocated to clients In DHCPv6 stateful autoconflguratlon? (Select All that Apply)

Options:

A.

IPv6 address

B.

PD prefix

C.

SNTP server address

D.

DNS server address

Question 2

Deploying user authentication points at the access layer achieves fine-grained permission management and high network security. However, as the network scale is rapidly expanding, problems arise, such as heavy configuration workloads and high O & M difficulties. To mitigate these problems, user authentication points can be moved upward from the access layer to the aggregation or core layer. In this way, authentication information across the entire network is centralized and the number of user authentication points is decreased, thereby reducing the configuration and maintenance workload.

Options:

A.

TRUE

B.

FALSE

Question 3

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.

as

as

Options:

Question 4

On a campus network, which of the following problems may occur when you manually create a static VXLAN tunnel? (Select All that Apply)

Options:

A.

Although the static VXLAN tunnel mode supports the distributed gateway scenario, the configuration involves a heavy workload and is complex to adjust.

B.

A static VXLAN tunnel uses related protocols on the control plane, consuming device resources.

C.

If N devices need to establish VXLAN tunnels, you need to manually configure the ingress replication list up to N x (N-l)/2 times.

D.

Remote MAC addresses can be learned only through data flooding.

Question 5

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

Question 6

An LDAP directory is tree-structured and consists of multiple entries. Each entry has a unique distinguished name (DN). If the DM of a directory server is " CN=Stephen, 0U = Enterprise, OU = Huawei, DC=AD, DC=Huawei " , which of the following statements are false?

Options:

A.

DN specifies a path.

B.

The directory server is not an AD server.

C.

Stephen indicates a user or user group.

D.

The domain name of the directory server is Huawei

Question 7

Which of the following statements is true about Navi AC networking?

Options:

A.

The local AC and Navi AC must have the same service VLAN, SSID, user isolation mode, and authentication mode in their VAP profiles.

B.

The software versions of the local AC and Navi AC can be different.

C.

Dual-link backup can be deployed between the local AC and Navi AC.

D.

Inter-Navi AC roaming is supported.

Question 8

After built-in Portal authentication is configured on a Huawei WAC. the Portal authentication page can be displayed but Portal authentication cannot be performed. What are the possible causes?

Options:

A.

The AP version is outdated.

B.

The data forwarding mode is direct forwarding, and the WAC does not allow packets from service VLANs to pass through.

C.

The route configuration is incorrect. As a result, the STA cannot communicate with the built-in Portal server.

D.

The password entered on the STA is incorrect

Question 9

AD authentication integrates Kerberos authentication into LDAP authentication. The basic AD architecture consists of the user, AD client, and AD server. Which of the following are components of an A3 server?

Options:

A.

Key distribution center

B.

Authorization server

C.

Accounting server

D.

LDAP server

Question 10

Huawei Agile Cloud Authentication (HACA) supports only IMaster NCE-Campus as the HACA server.

Options:

A.

True

B.

False

Question 11

VXLAN uses a VXLAN Network Identifier (VNI) field similar to a VLAN ID to identify users. The VNI field occupies 28 bits and supports up to 16M VXLAN segments.

Options:

A.

TRUE

B.

FALSE

Question 12

Huawei ' s leader AP solution supports both Layer 2 and Layer 3 roaming for STAs.

Options:

A.

TRUE

B.

FALSE

Question 13

Which of the following statements are true about data collection of IMaster NCE-Campuslnslght? (Select All that Apply)

Options:

A.

iMaster NCE-Campuslnsight uses telemetry to Implement efficient data collection.

B.

Calculated data can be displayed on iMaster NCE-Campuslnsight only after a license Is loaded on the device management page.

C.

To collect data from WLAN devices, ensure that WACs can communicate with the southbound IP address of iMaster NCE-Campuslnsight. APs do not need to communicate with the southbound IP address of iMaster NCE-Campuslnsight.

D.

The UTC time of iMaster NCE-Campuslnsight must be the same as that of its managed devices.

Question 14

A Wi-Fi RFID tag is a signal generator manufactured by tag vendors to help locate the objects. Which of the following types of tags can be located by Huawei devices?

Options:

A.

Hotspot tag

B.

AeroScout tag

C.

Location tag

D.

Ekahau tag

Question 15

A key technology in Huawei ' s free mobility solution is to synchronize association information between users and security groups to other devices. Which of the following statements are true about the synchronization method?

Options:

A.

Group information can be carried to other devices through user traffic

B.

Global synchronization can be performed through the controller.

C.

A dedicated protocol can be used to synchronize user-security group association information between devices.

D.

Synchronization can be manually configured by the administrator.

Question 16

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

Options:

A.

TOF

B.

TOA

C.

TDOA

D.

TDOF

Question 17

Which of the following statements about EAP relay and EAP termination are false? (Select All that apply)

Options:

A.

In EAP termination mode, an access device encapsulates EAP packets sent by an 802. IX client Into RADIUS packets, without processing the data in the EAP packets.

B.

In EAP relay mode, an access device extracts information from EAP packets, encapsulates the information into RADIUS packets, and sends the RADIUS packets to an authentication server.

C.

In EAP termination mode, an access device extracts client authentication information from the EAP packets sent by a client and encapsulates the information using the standard RADIUS protocol. The access device supports only the EAP MD5-Challenge authentication method.

D.

The EAP termination mode simplifies the processing on an access device and supports various authentication methods. However, this mode requires an authentication server to support EAP and have high processing capability.

Question 18

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

Question 19

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

Question 20

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.

Question 21

Which of the following are typical 802. IX authentication modes? (Select All that apply)

Options:

A.

EAP termination

B.

EAP relay

C.

EAP-TLS

D.

EAP-MD5

Question 22

In a Huawei cloud management scenario, an engineer wants to implement WAC plug-and-play through DHCP. When the northbound IP address of iMaster NCE-Campus is 172.21.59.101 and the southbound IP address is 172.21.59.102, which of the following commands is correct for configuring DHCP option 148?

Options:

A.

dhcp server option 148 ascii agilemode=agile-cloud;agilemanage-mode=ip;agilemanage-domain=172.21.59.102;agilemanage-port=10080;ap-agilemode=agile-cloud;

B.

dhcp server option 148 ascii agilemode=agile-cloud;agilemanage-mode=ip;agilemanage-domain=172.21.59.101;agilemanage-port=10080;ap-agilemode=agile-cloud;

C.

dhcp server option 148 ascii agilemode=agile-cloud;agilemanage-mode=ip;agilemanage-domain=172.21.59.102;agilemanage-port=10020;ap-agilemode=agile-cloud;

D.

dhcp server option 148 ascii agilemode=agile-cloud;agilemanage-mode=ip;agilemanage-domain=172.21.59.101;agilemanage-port=10020;ap-agilemode=agile-cloud;

Question 23

After RADIUS packet retransmission is triggered, if the device detects that the RADIUS server status is Down, the device marks the RADIUS server status as Down. If the maximum number of retransmissions has not been reached, which of the following will occur?

Options:

A.

The device retransmits the authentication request packet only once to the RADIUS server.

B.

The device retransmits the packet at most three more times, and stops retransmission once it receives a response packet or the maximum number of retransmissions is reached.

C.

The device continues to retransmit packets until it receives a response packet or the maximum number of retransmissions is reached.

D.

The device stops retransmission immediately.

Question 24

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.

Question 25

With protocol trace, iMaster NCE-Campuslnsight displays protocol-level Interaction details at the phases for wireless users. (Enter the acronyms in capital letters.)

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Options:

Question 26

WPA3 has the following advantages over WPA and WPA2: supports WPA3-SAE, provides a more secure handshake protocol, enhances the algorithm strength, and supports Suite A cryptography.

Options:

A.

True

B.

False

Question 27

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

Question 28

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

Question 29

Either of the two APs that have established a mesh connection can send a Mesh Peering Close frame to the other AP to tear down the mesh connection.

Options:

A.

True

B.

False

Question 30

DHCPv6 stateful autoconfiguration enables a DHCPv6 server to automatically assign IPv6 addresses, PD prefixes, and other network configuration parameters, such as DNS, NIS, and SNTP server address.

Options:

A.

TRUE

B.

FALSE

Question 31

After traffic suppression is enabled on a Huawei WAC, the device monitors the rate of broadcast, multicast, and unknown unicast packets and compares the rate with the configured threshold. When the incoming traffic rate exceeds the configured threshold, the device discards the excess traffic.

Options:

A.

TRUE

B.

FALSE

Question 32

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 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

Question 33

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:

Question 34

Fat APs can be switched to the cloud management mode only by using commands, not through the registration query center.

Options:

A.

TRUE

B.

FALSE

Question 35

Which of the following statements about fingerprint-based positioning technology are true? (Select All that Apply)

Options:

A.

The positioning engine generates a virtual fingerprint library through calculations based on the AP deployment and environment information.

B.

Terminals learn from each other to form a fingerprint library that can be shared.

C.

APs collect surrounding environment information to form a fingerprint library.

D.

The fingerprint map is obtained through onsite information collection.

Question 36

Which of the following statements are true about the site design in Huawei ' s CloudCampus Solution?

Options:

A.

It is recommended that network devices at the same physical location be planned into multiple sites. Different sites correspond to different services on the campus network.

B.

Each site can have a tenant administrator to independently manage and maintain its network, or an MSP administrator can be authorized to perform unified network management and O & M for all sites.

C.

An independent branch can be planned as a site based on the physical location, for example, a financial branch of a bank or a campus of a university.

D.

For a midsize campus network, do not plan too many sites. Otherwise, the interconnection between sites and site management will be complex.

Question 37

In N4 1 backup scenarios, the WAC has two priorities: global priority and individual priority. If both priorities are configured for an AP and it sends a Discovery Request packet to the WAC, which priority is carried in the Discovery Response packet returned by the WAC?

Options:

A.

Individual priority

B.

Global priority

C.

Highest priority

D.

Global priority if it is higher than the individual priority

Question 38

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

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Options:

Question 39

As shown in the figure, STA_1 through STA_4 are associated with AP_1, and STA_5 is associated with AP_2. Assuming that the load balancing threshold is 2, the load difference threshold is 25%, and API and AP2 support a maximum of 10 STAs, which of the following statements are true? (Select All that Apply)

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Options:

A.

The load percentage of AP_1 is 40%, and that of AP_2 is 10%.

B.

The load balancing mechanism needs to be enabled. Then some STAs are steered from AP_1 to AP__2.

C.

If load balancing is performed, the load percentage of AP_1 changes to 30%.

D.

The minimum load percentage is 10%, which is greater than the load difference threshold. Therefore, load balancing needs to be enabled.

Question 40

Which of the following components is not included In a typical RFID system?

Options:

A.

Information processing platform

B.

RFID tag

C.

Router

D.

RFID reader

Question 41

A company needs to provide Wi-Fi coverage spanning a radius of about 100 m in a flat outdoor area. In the center of the area, APsand 2.4 GHz omnidi recto id i antennas (11 dBi gam and 15° vertical beam width) are installed on the top of a six-story building. A laptop 70 m away from this building cannot receive Wi-Fi signals. Which of the following statements is true about the cause analysis and solution for this symptom?

Options:

A.

The performance of the laptop ' s network adapter is poor. The solution is to replace the laptop.

B.

The antennas arc installed too high. The solution is to move the antennas to a lower position.

C.

The antenna gain is too low to cover such a distance. The solution is to replace the antennas with higher-gain ones.

D.

The antenna angle is small. The solution is to adjust the angle of the antennas.

Question 42

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

Question 43

According to the configurations displayed on a customer ' s WAC, which of the following statements are true?

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Options:

A.

On the WLAN, a single AP supports a maximum of 30 access STAs or 32 roaming STAs.

B.

When 30 STAs are connected to an AP, the AP ' s SSID is hidden. However, new STAs that know the SSID can still connect to the AP.

C.

If 30 STAs are connected to the AP, the AP allows a maximum of 32 roaming STAs.

D.

If 28 STAs are connected to the AP, the AP allows a maximum of four roaming STAs.

Question 44

In Huawei ' s QoudCampus Solution, deployment through the registration center is as follows: A network device connects to the Internet and then automatically sends a request to the registration center to obtain the IP address/URL and port number of iMaster NCE-Campus. Once the device obtains this information, it automatically registers with (Master NCE-Campus and goes online.

Options:

A.

TRUE

B.

FALSE

Question 45

An intrusion prevention signature describes the characteristics of an attack on the network. The WAC detects and defends against attacks by comparing data flows with intrusion prevention signatures. Predefined signatures are those in the IPS signature database and cannot be created, modified, or deleted. Which of the following statements are true about the default action of a predefined signature?

Options:

A.

Allow: permits the packet to pass without recording a tog.

B.

Rate limiting: limits the rate of traffic and records a tog.

C.

Alert: permits the packet and records a tog.

D.

Block: discards the packet blocks the data flow to which the packet belongs, and records a tog.

Question 46

An IPv6 packet consists of three parts. Which of the following is not one of them?

Options:

A.

IPv6 basic header

B.

Upper-layer protocol data unit

C.

IPv6 extension header

D.

IPv6 reassembly header

Question 47

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

Question 48

Which of the following statements is false about STA roaming tracks on a Huawei WAC?

Options:

A.

If the values of In Rx/Tx, In RSSI, Out Rx/Tx, and Out RSSI are low, the signal coverage in this area may be abnormal.

B.

If the values of In Rx/Tx, In RSSI, Out Rx/Tx, and Out RSSI are good, the signal coverage in this area is excessively dense.

C.

It is unreasonable that the value of Out RSSI is lower than the signal strength of the next associated AP.

D.

It is reasonable that the value of Out Rx/Tx is lower than the signal strength of the next associated AR

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Total 163 questions