[2023年11月03日]H12-351_V1.0テスト準備できるトレーニング練習テスト試験問題 [Q11-Q36]

[2023年11月03日]H12-351_V1.0テスト準備できるトレーニング練習テスト試験問題

試験問題解答ブレーン問題集でH12-351_V1.0試験問題集PDFを使おう

質問 # 11
During a project lifecycle, the______ document needs to be output after the high level design be output after the low level design is complete. (Enter the acronyms in capital letters.)

正解：

解説：
ATP
ATP stands for Acceptance Test Plan, which is a document that needs to be output after the low level design is complete. The ATP describes the acceptance criteria and test cases for the project.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/atp

質問 # 12
Which of the following advantages does BSS coloring provide in Wi-Fi 6? (Select All that Apply)

A. More efficient channel use
B. Higher concurrency in high-density scenarios
C. Higher packet rate on the air interface
D. Enhanced encryption on the air interface

正解：A、B、C

解説：
Explanation
BSS coloring is a feature introduced in Wi-Fi 6 that assigns different colors to different BSSs to reduce co-channel interference. BSS coloring provides the following advantages:
Higher packet rate on the air interface: BSS coloring reduces collisions between packets from different BSSs on the same channel, improving packet transmission efficiency.
More efficient channel use: BSS coloring allows spatial reuse of channels by different BSSs, increasing channel utilization.
Higher concurrency in high-density scenarios: BSS coloring reduces interference among neighboring APs and improves network performance in high-density scenarios.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/bss-coloring

質問 # 13
Which of the following key factors is used by the CloudCampus cloud management platform to determine the tenant to which a device belongs?

A. Device model
B. Device IP address
C. Device ESN
D. Device MAC address

正解：C

解説：
Explanation
The device ESN (Electronic Serial Number) is a unique identifier that is used by the CloudCampus cloud management platform to determine the tenant to which a device belongs. The device ESN is bound to a tenant when a device is added to the platform.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/device-esn

質問 # 14
Which of the following statements are true about data collection of IMaster NCE-Campuslnslght? (Select All that Apply)

A. 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.
B. iMaster NCE-Campuslnsight uses telemetry to Implement efficient data collection.
C. The UTC time of iMaster NCE-Campuslnsight must be the same as that of its managed devices.
D. Calculated data can be displayed on iMaster NCE-Campuslnsight only after a license Is loaded on the device management page.

正解：A、B

解説：
Explanation
B is false because calculated data can be displayed on iMaster NCE-CampusInsight without loading a license on the device management page. The license only affects the number of devices that can be managed by iMaster NCE-CampusInsight.
D is false because the UTC time of iMaster NCE-CampusInsight does not need to be the same as that of its managed devices. However, it is recommended that they use the same time zone to avoid confusion.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/data-collection

質問 # 15
After the HTTP domain name is entered in a browser, the user Is not redirected to the Portal URL. Which of the followings is the possible cause for this failure? (Select All that Apply)

A. The web server is incorrectly configured.
B. HTTPS redirection is disabled.
C. The DNS server IP address is not added to the authentication-free rule.
D. The URL template is incorrectly configured.

正解：A、C、D

解説：
Explanation
C is false because HTTPS redirection is not required for Portal authentication to work properly.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/troubleshooting-portal-authentication

質問 # 16
Which of the following statements about EAP relay and EAP termination are false? (Select All that apply)

A. 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.
B. 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.
C. 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.
D. 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.

正解：B、C

解説：
Explanation
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. This statement is false because in EAP termination mode, an access device extracts information from EAP packets, encapsulates the information into RADIUS packets, and sends the RADIUS packets to an authentication server2.
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. This statement is false because it describes the EAP relay mode, not the EAP termination mode2.
Therefore, A and D are the correct answers. References: 2:
https://support.huawei.com/enterprise/en/doc/EDOC1100086527

質問 # 17
In mesh networking, APs have different roles. Drag the AP roles on the left to the role descriptions on the right.

正解：

解説：

Explanation
MP: Mesh node that uses IEEE 802.11 MAC and PHY protocols for wireless communication. This node supports automatic topology discovery, automatic route discovery, and data packet forwarding. It can provide both mesh service and user access service1.
MPP: MP node that connects a WMN to MPs on other types of networks. This node can function as a portal for communication between internal mesh nodes and external networks1.
Neighbor MP: Neighboring MP with which an MP prepares to establish a mesh link1.
Candidate MP: AP that directly communicates with a mesh node2.
https://support.huawei.com/enterprise/en/doc/EDOC1100064365/90f2391e/configuration-examples-for-mesh
2:
https://support.huawei.com/enterprise/en/doc/EDOC1100169459/8d79210e/configuring-wireless-mesh-networki

質問 # 18
To which of the following scenarios is radio calibration applicable?

A. Rail transportation scenario
B. Enterprise office scenario
C. WDS or mesh backhaul scenario
D. High-density scenario

正解：D

解説：
Explanation
Radio calibration is applicable to high-density scenarios where a large number of users access the network simultaneously and require high bandwidth, such as stadiums, exhibition halls, and conference centers. Radio calibration can improve user experience by increasing the frequency bandwidth for high-load APs.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/radio-calibration

質問 # 19
Which of the followings is not a roaming optimization solution?

A. Smart roaming
B. 802.11r roaming
C. Fast roaming using PMK caching
D. Proactive roaming

正解：A

解説：
Explanation
Smart roaming is not a roaming optimization solution, but a feature that allows an AP to automatically adjust its transmit power based on signal strength and interference level. The other options are all roaming optimization solutions that can reduce roaming latency and packet loss.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/smart-roaming

質問 # 20
In 802. IX authentication using port-based access control, once a user is authenticated successfully on a port, subsequent users on this port can access the network without authentication. When the authenticated user goes offline, all other users are denied access to the network.

A. False
B. True

正解：B

解説：
Explanation
According to the Huawei documents and resources, 802.1X authentication using port-based access control is a method that allows only one user to access the network through a port at a time. If a user is authenticated successfully on a port, subsequent users on this port can access the network without authentication. When the authenticated user goes offline, all other users are denied access to the network . Therefore, A is the correct answer. References: 1: https://support.huawei.com/enterprise/en/doc/EDOC1100086527

質問 # 21
The display sync-configuration compare command is executed on the backup WAC in HSB to check wireless configuration synchronization. Based on the command output, which of the following statements are true?
(Select All that apply)

A. The configuration of vap-profile name 2 exists on the backup WAC but not on the master WAC.
B. This command is used to check whether the public configurations on two WACs are consistent after wireless configuration synchronization.
C. The configuration of ssid-profile 2 exists on both the master and backup WACs.
D. The configuration of vap-profile name 3 exists on the master WAC but not on the backup WAC.

正解：B、D

解説：
Explanation
The display sync-configuration compare command is used to check whether the public configurations on two WACs are consistent after wireless configuration synchronization. The command output shows the differences between the configurations on the master and backup WACs. In this case, the configuration of vap-profile name 3 exists on the master WAC but not on the backup WAC.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/display-sync-configuration-compare

質問 # 22
Which of the following statements are true about the WLAN site survey In different typical scenarios? (Select All that Apply)

A. 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.
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 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.

正解：A、B、C、D

解説：
Explanation
Only: All statements are true about the WLAN site survey in different typical scenarios.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/wlan-site-survey

質問 # 23
iMaster NCE-Campuslnsight provides Intelligent radio calibration for high-load APs to increase the frequency bandwidth. This function applies to both 5 GHz and 2.4 GHz frequency bands.

A. False
B. True

正解：A

解説：
Explanation
iMaster NCE-CampusInsight provides intelligent radio calibration for high-load APs to increase the frequency bandwidth. However, this function applies only to the 5 GHz frequency band, not to the 2.4 GHz frequency band.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/intelligent-radio-calibration

質問 # 24
An AP may preferentially use the BTM mode to steer some STAs. With which of the following protocols are such STAs compliant?

A. 802.11i
B. 802.11k
C. 802.11r
D. 802.11v

正解：D

解説：
Explanation
An AP may preferentially use the BTM mode to steer some STAs that are compliant with 802.11v protocol.
BTM stands for BSS Transition Management, which is a feature defined in 802.11v protocol that allows an AP to send a request to a STA to switch to another BSS.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/btm

質問 # 25
iMaster NCE-Campuslnsight comprehensively analyzes WLAN client access, displays success rates and time consumption of association, --------, and DHCP. It also provides issue analysis and optimization suggestions.
(Enter lowercase letters.)

正解：

解説：
authentication
iMaster NCE-CampusInsight comprehensively analyzes WLAN client access, displays success rates and time consumption of association, authentication, and DHCP. It also provides issue analysis and optimization suggestions.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/client-access-analysis

質問 # 26
Which of the following types of non-Wi-R devices can be identified by Huawei APs? (Select All that Apply)

A. ZigBee device
B. Game controller
C. 2.4 GHz wireless video and audio transmitter
D. Bluetooth device

正解：A、C、D

解説：
Explanation
Huawei APs can identify non-Wi-Fi devices that operate in the 2.4 GHz frequency band, such as Bluetooth devices, ZigBee devices, game controllers, wireless video and audio transmitters, microwave ovens, cordless phones, and baby monitors.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/non-wi-fi-device-identification

質問 # 27
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.

正解：

解説：

Explanation
According to the Huawei documents and resources, the network planning suggestions for the solutions are as follows:
Asset management: The RFID signal coverage distance is 25 m. Therefore, RFID signal coverage must be considered during AP deployment planning. Attach RFID tags on the surface or top of assets to prevent signals from being blocked.
ESL: Shelves may be blocked in application scenarios. Therefore, shelf blocking must be considered during network planning. The shelves can be deployed in aisles to minimize obstacles toward integrated base stations.
Smart healthcare: For applications that support regional positioning, positioning devices need to be deployed at key entrances and exits based on service requirements.
Therefore, Asset management - 2, ESL - 1, Smart healthcare - 3 is the correct answer. References: :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/asset-management :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/esl :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/smart-healthcare

質問 # 28
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.

A. False
B. True

正解：B

解説：
Explanation
A mesh connection can be torn down by either of the two APs that have established it by sending a Mesh Peering Close frame to the other AP. This frame indicates that the sender no longer wants to maintain the mesh connection.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/mesh-networking

質問 # 29
Which of the following statements about fingerprint-based positioning technology are true? (Select All that Apply)

A. The positioning engine generates a virtual fingerprint library through calculations based on the AP deployment and environment information.
B. APs collect surrounding environment information to form a fingerprint library.
C. Terminals learn from each other to form a fingerprint library that can be shared.
D. The fingerprint map is obtained through onsite information collection.

正解：A、D

解説：
Explanation
Fingerprint-based positioning technology is a method that uses the signal strength or phase difference of wireless signals to locate objects. There are two types of fingerprint-based positioning technology: virtual fingerprint-based positioning and real fingerprint-based positioning. In virtual fingerprint-based positioning, the positioning engine generates a virtual fingerprint library through calculations based on the AP deployment and environment information. In real fingerprint-based positioning, the fingerprint map is obtained through onsite information collection.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/fingerprint-based-positioning-techno

質問 # 30
Which of the following statements about EAP relay and EAP termination are false? (Select All that apply)

A. 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.
B. 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.
C. 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.
D. 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.

正解：B、C

質問 # 31
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)

A. The load balancing mechanism needs to be enabled. Then some STAs are steered from AP_1 to AP__2.
B. If load balancing is performed, the load percentage of AP_1 changes to 30%.
C. The minimum load percentage is 10%, which is greater than the load difference threshold. Therefore, load balancing needs to be enabled.
D. The load percentage of AP_1 is 40%, and that of AP_2 is 10%.

正解：A、D

解説：
Explanation
The load percentage of an AP is calculated by dividing the number of associated STAs by the maximum number of STAs supported by the AP. In this case, the load percentage of AP_1 is 4/10 = 40%, and that of AP_2 is 1/10 = 10%. The load balancing mechanism needs to be enabled to balance the load between AP_1 and AP_2. Then some STAs are steered from AP_1 to AP_2 based on the load balancing threshold and the load difference threshold.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/load-balancing

質問 # 32
Which of the following configurations may cause ST As to experience a slow Internet connection? (Select All that Apply)

A. QoS CAR is configured in the traffic profile.
B. Rate limiting is configured in the SSID profile.
C. Radio 1 of APs is disabled.
D. TKIP encryption is configured, causing a low link setup rate.

正解：A、B、D

解説：
Explanation
B is false because disabling radio 1 of APs does not affect the Internet connection speed of STAs that use radio 2.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/troubleshooting-slow-internet-connec

質問 # 33
Which of the following statements correctly arranges matching modes used by URL filtering in descending order of priority?

A. Exact matching > Suffix matching > Prefix matching > Keyword matching
B. Exact matching > Keyword matching > Suffix matching > Prefix matching
C. Exact matching > Prefix matching > Suffix matching > Keyword matching
D. Exact matching > Suffix matching > Keyword matching > Suffix matching

正解：A

解説：
Explanation
URL filtering supports four matching modes: exact matching, suffix matching, prefix matching, and keyword matching. The priority order of these modes is as follows:
Exact matching: The highest priority. An exact match means that a URL entered by a user is exactly the same as a URL in a blacklist or whitelist.
Suffix matching: The second highest priority. A suffix match means that a URL entered by a user ends with a suffix in a blacklist or whitelist.
Prefix matching: The third highest priority. A prefix match means that a URL entered by a user starts with a prefix in a blacklist or whitelist.
Keyword matching: The lowest priority. A keyword match means that a URL entered by a user contains a keyword in a blacklist or whitelist.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/url-filtering

質問 # 34
In a dual-link HSB scenario, after an AP sets up CAPWAP links with the active and standby WACs, which of the following types of packets does the AP periodically send to the WACs to detect link status?

A. DTLS
B. Join
C. Keepalive
D. Echo

正解：D

解説：
Explanation
In a dual-link HSB scenario, after an AP sets up CAPWAP links with the active and standby WACs, the AP periodically sends Echo packets to the WACs to detect link status. The Echo packets are sent every 30 seconds by default.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/dual-link-hsb

質問 # 35
In the early phase of a project, after the project requirements are clarified, the project owner should Checklist to describe the customer's requirements. (Capitalize the first letter of each word.)

正解：

解説：
Customer Requirement Specification
Customer Requirement Specification (CRS) is a document that needs to be output after the project requirements are clarified. The CRS describes the customer's requirements in detail and serves as the basis for subsequent project design and delivery.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/crs

質問 # 36
......

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