[2024年03月]更新のHuawei H12-351_V1.0問題集とリアルな試験問題
2024年最新のH12-351_V1.0のPDF最近更新された問題
Huawei H12-351_V1.0: HCIE-WLAN（Written）V1.0試験は、ITプロフェッショナルの無線LAN技術に関する知識とスキルを試す認定試験です。この試験は、複雑なWLANネットワークの設計、展開、トラブルシューティングにおける専門知識を検証する人々を対象としています。
Huawei H12-351_V1.0（HCIE-WLAN（writde）v1.0）認定試験は、エンタープライズワイヤレスネットワークの設計、展開、管理の専門知識を実証したいITプロフェッショナル向けに設計された高度なレベルの認定です。この認定は、通信機器とサービスを専門とする大手テクノロジー企業であるHuaweiによって提供されています。
質問 # 20
Which of the following advantages does BSS coloring provide in Wi-Fi 6? (Select All that Apply)
- A. Higher concurrency in high-density scenarios
- B. More efficient channel use
- C. Enhanced encryption on the air interface
- D. Higher packet rate on the air interface
正解：A、B、D
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 # 21
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 # 22
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. True
- B. False
正解：B
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 # 23
Which of the following methods are used in IPsec to ensure secure transmission of service data on the network through encryption and authentication?
- A. Data integrity is verified.
- B. The receiver verifies the identity of the sender.
- C. The receiver rejects old or duplicate packets in order to prevent attacks initiated by malicious users who resend sniffed packets,
- D. The sender verifies the identity of the receiver.
正解：A、B
解説：
Explanation
IPsec uses authentication headers (AHs) and encapsulating security payloads (ESPs) to ensure secure transmission of service data on the network. AHs provide authentication and integrity verification for the sender and the receiver, while ESPs provide encryption and optional authentication for the data.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/ipsec
質問 # 24
Which of the following user access authentication modes are supported In Huawel's CloudCampus Solution?
(Select All that Apply)
- A. 802. IX authentication
- B. MAC address authentication
- C. Portal authentication
正解：A、B、C
解説：
Explanation
Huawei's CloudCampus Solution supports three user access authentication modes: 802.1X authentication, MAC address authentication, and Portal authentication.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/user-access-authentication-modes
質問 # 25
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 minimum load percentage is 10%, which is greater than the load difference threshold. Therefore, load balancing needs to be enabled.
- B. If load balancing is performed, the load percentage of AP_1 changes to 30%.
- C. The load percentage of AP_1 is 40%, and that of AP_2 is 10%.
- D. The load balancing mechanism needs to be enabled. Then some STAs are steered from AP_1 to AP__2.
正解：C、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 # 26
Which of the fallowings is not an IPv6 address type?
- A. Anycast address
- B. Unicast address
- C. Multicast address
- D. Broadcast address
正解：D
解説：
Explanation
Broadcast address is not an IPv6 address type. IPv6 does not support broadcast addressing, but uses multicast addressing instead. The other options are valid IPv6 address types. Unicast address identifies a single interface, multicast address identifies a group of interfaces, and anycast address identifies multiple interfaces but delivers packets to only one of them.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/ipv6-address-types
質問 # 27
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?
- A. MAC address of the multicast source
- B. Multicast MAC address
- C. MAC address of a STA
- D. Broadcast MAC address
正解：C
解説：
Explanation
After multicast-to-unicast conversion is enabled on an AP's air interface, the destination MAC address of multicast packets sent over the air interface is changed to the MAC address of a STA that has joined the multicast group. This improves the transmission efficiency and reliability of multicast packets.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/multicast-to-unicast-conversion
質問 # 28
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 > Prefix matching > Suffix matching > Keyword matching
- C. Exact matching > Keyword matching > Suffix matching > Prefix 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 # 29
Drag the Huawei's wireless positioning solutions on the left to their corresponding features and application scenarios on the right.
正解：
解説：
Explanation
According to the Huawei documents and resources, the features and application scenarios of the wireless positioning solutions are as follows:
Wi-Fi terminal positioning: Performs network-side positioning generally based on the RSSI, but provides low positioning accuracy. This method applies to scenarios such as precision marketing and customer flow analysis in shopping malls.
Bluetooth tag positioning: Runs based on the built-in Bluetooth module of an AP. The AP reports data to a positioning engine for location resolution. This positioning technology provides low positioning accuracy and applies to asset positioning and personnel positioning scenarios.
UWB positioning: Provides high positioning accuracy, and is applicable to scenarios that require high accuracy, such as intelligent manufacturing, warehousing logistics, and mechanical manufacturing.
Bluetooth terminal positioning: Runs based on the built-in Bluetooth module of an AP, which can be implemented on either the network side or terminal side.
Therefore, Wi-Fi terminal positioning - 3, Bluetooth tag positioning - 4, UWB positioning - 2, Bluetooth terminal positioning - 1 is the correct answer. References: :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/wi-fi-terminal-positioning :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/bluetooth-tag-positioning :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/uwb-positioning :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/bluetooth-terminal-positioning
質問 # 30
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 URL template is incorrectly configured.
- B. The DNS server IP address is not added to the authentication-free rule.
- C. HTTPS redirection is disabled.
- D. The web server is incorrectly configured.
正解：A、B、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 # 31
Which of the following components is not included In a typical RFID system?
- A. Router
- B. RFID reader
- C. Information processing platform
- D. RFID tag
正解：A
解説：
Explanation
A router is not included in a typical RFID system. A typical RFID system consists of three components: RFID tag, RFID reader, and information processing platform. The RFID tag is attached to the object to be identified, the RFID reader communicates with the tag and reads its information, and the information processing platform processes and stores the data collected by the reader.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/rfid
質問 # 32
Which of the following parameters can be allocated to clients In DHCPv6 stateful autoconflguratlon? (Select All that Apply)
- A. DNS server address
- B. SNTP server address
- C. PD prefix
- D. IPv6 address
正解：A、C、D
解説：
Explanation
In DHCPv6 stateful autoconfiguration, a client obtains an IPv6 address, a PD prefix (if required), and other configuration parameters (such as DNS server address) from a DHCPv6 server.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/dhcpv6-stateful-autoconfiguration
質問 # 33
Which of the following tools are commonly used for WLAN network planning, acceptance, or health evaluation? (Select All that Apply)
- A. WLAN Planner
- B. CloudCampus APP
- C. iMaster NCE-Campuslnsight
- D. eDesk
正解：A、B、C
解説：
Explanation
C is not a tool commonly used for WLAN network planning, acceptance, or health evaluation. eDesk is a tool for remote fault diagnosis and rectification on WLAN networks.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/wlan-planner
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/imaster-nce-campusinsight
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/cloudcampus-app
質問 # 34
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 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.
- C. 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.
- 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 # 35
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