Huawei H12-351_V1.0 Questions and Answers Guarantee you Oass the Test Easily
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The Huawei H12-351_V1.0 exam is designed for professionals who want to showcase their abilities in WLAN network design and engineering to potential employers. It is also useful for existing employees who want to expand their skill set and advance their career within their organization. HCIE-WLAN (Written) V1.0 certification verifies that the candidate has the skills and knowledge required to plan, deploy, configure and maintain complex, large-scale WLAN networks.
Huawei H12-351_V1.0 is a certification exam that measures the candidate's knowledge and skills in designing, deploying, and troubleshooting WLAN networks. H12-351_V1.0 exam is designed for IT professionals who are responsible for WLAN network planning, design, and integration. Passing H12-351_V1.0 exam will validate the candidate's ability to configure and manage enterprise-level WLAN networks and prepare them for the HCIE-WLAN certification.
NEW QUESTION # 35
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. Broadcast MAC address
- B. MAC address of a STA
- C. MAC address of the multicast source
- D. Multicast MAC address
Answer: B
Explanation:
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
NEW QUESTION # 36
Which of the following may be the reason why no data Is displayed on the telemetry management page of IMaster NCE-CampusInsight? (Select All that Apply)
- A. Telemetry data reporting is not configured on devices according to the configuration guide.
- B. No license file is imported.
- C. The network connecting devices and iMaster NCE-Campuslnsight Is faulty.
- D. The UTC time of devices is inconsistent with that of iMaster NCE-Campuslnsight.
- E. Devices are not added to iMaster NCE-Campuslnsight.
Answer: A,C,E
Explanation:
Explanation
C is false because the license file only affects the number of devices that can be managed by iMaster NCE-CampusInsight, not the data display.
E is false because the UTC time of devices does not need to be consistent with that of iMaster NCE-CampusInsight.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/data-display
NEW QUESTION # 37
In a multicast solution, there must be reachable unlcast routes between multicast sources and receivers.
- A. False
- B. True
Answer: B
Explanation:
Explanation
In a multicast solution, there must be reachable unicast routes between multicast sources and receivers, because multicast routing protocols use unicast routing information to build multicast forwarding trees.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/multicast
NEW QUESTION # 38
Master NCE-Campuslnsight can comprehensively record and analyze Interference. Which of the following parameters are recorded? (Select All that Apply)
- A. Interference fulfillment rate
- B. Recommended channels
- C. Number of interference SSIDs
- D. Air interface congestion fulfillment rate
- E. Interference strength
Answer: B,C,E
Explanation:
Explanation
B and E are not parameters recorded by iMaster NCE-CampusInsight for interference analysis. The other options are parameters recorded by iMaster NCE-CampusInsight to comprehensively record and analyze interference.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/interference-analysis
NEW QUESTION # 39
Which of the following statements about attack defense is true?
- A. Fragmentation attack defense enables a device to detect packet fragments in real time and discard or rate-limit them to protect the device.
- 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. Defense against flood attacks can be used to defend against Ping of Death attacks.
- D. Attack defense can defend against spoofing packet attacks, malformed packet attacks, fragmentation attacks, and flood attacks.
Answer: B
Explanation:
Explanation
Attack defense is a feature that 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, such as discarding them or limiting their rate. Attack defense can defend against spoofing packet attacks, malformed packet attacks, fragmentation attacks, and flood attacks.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/attack-defense
NEW QUESTION # 40
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.)
Answer:
Explanation:
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
NEW QUESTION # 41
In a VRRP HSB scenario, if the VRRP preemption delay is set to a small value, which of the following problems may occur after a master/backup switchover? (Select All that apply)
- A. Service data on the master and backup WACs is lost.
- B. A master/backup switchback is triggered too quickly.
- C. The batch backup process cannot be started.
- D. Backup information is incomplete.
Answer: B,D
Explanation:
Explanation
According to the Huawei documents and resources, the VRRP preemption delay is the time that an AC waits before preempting another AC with a lower priority. If the VRRP preemption delay is set to a small value, the following problems may occur after a master/backup switchover:
B: A master/backup switchback is triggered too quickly. If the master AC recovers soon after a switchover, it may preempt the backup AC again and become the master AC. This may cause frequent switchovers and affect network stability C: Backup information is incomplete. If the backup AC takes over services from the master AC too quickly, it may not have received all the data synchronized from the master AC through HSB. This may cause service interruption or data loss Therefore, B and C are the correct answers. References:
https://support.huawei.com/enterprise/en/doc/EDOC1100064368/80fc2ebd/example-for-configuring-vrrp-hsb
2: https://support.huawei.com/enterprise/en/doc/EDOC1100096325/1a753937/vrrp-hsb-configuration
NEW QUESTION # 42
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 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.
Answer: A,B
Explanation:
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
NEW QUESTION # 43
Which of the following methods are used in IPsec to ensure secure transmission of service data on the network through encryption and authentication?
- A. The sender verifies the identity of the receiver.
- B. The receiver rejects old or duplicate packets in order to prevent attacks initiated by malicious users who resend sniffed packets,
- C. The receiver verifies the identity of the sender.
- D. Data integrity is verified.
Answer: C,D
Explanation:
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
NEW QUESTION # 44
Which of the following types of non-Wi-R devices can be identified by Huawei APs? (Select All that Apply)
- A. Bluetooth device
- B. Game controller
- C. 2.4 GHz wireless video and audio transmitter
- D. ZigBee device
Answer: A,C,D
Explanation:
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
NEW QUESTION # 45
To which of the following scenarios is radio calibration applicable?
- A. Rail transportation scenario
- B. Enterprise office scenario
- C. High-density scenario
- D. WDS or mesh backhaul scenario
Answer: C
Explanation:
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
NEW QUESTION # 46
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?
- A. Leader AP networking
- B. Fat AP networking
- C. Mesh networking
- D. Navi WAC Networking
Answer: D
Explanation:
Explanation
Navi WAC networking is a networking mode that uses a WLAN Access Controller (WAC) to manage and control APs. It can provide different authentication and security policies for different user groups, such as employees and guests. Guest data is isolated from the internal network to prevent security threats.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100064352/9aadccc0/navi-wac-networking
NEW QUESTION # 47
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. Join
- B. Echo
- C. DTLS
- D. Keepalive
Answer: B
Explanation:
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
NEW QUESTION # 48
Which of the following statements are true about data collection of IMaster NCE-Campuslnslght? (Select All that Apply)
- A. Calculated data can be displayed on iMaster NCE-Campuslnsight only after a license Is loaded on the device management page.
- B. iMaster NCE-Campuslnsight uses telemetry to Implement efficient data collection.
- 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.
Answer: B,C
Explanation:
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
NEW QUESTION # 49
Drag the reasons for AP onboarding failures on the left to the corresponding troubleshooting operations on the right.
Answer:
Explanation:
Explanation
According to the Huawei documents and resources, the troubleshooting operations for the AP onboarding failures are as follows:
APS fail to be authenticated by the WAC: Whitelist the APS. The WAC can authenticate APs based on their MAC addresses or SNs. If an AP is not whitelisted on the WAC, it cannot be authenticated and onboarded.
License resources on the WAC are insufficient: Expand the license capacity. The WAC can manage a limited number of APs based on its license. If the license resources are insufficient, some APs cannot be onboarded.
APS fail to obtain IP addresses: Check the DHCP server. The APs need to obtain IP addresses from a DHCP server before they can communicate with the WAC. If the DHCP server is not configured or reachable, the APs cannot obtain IP addresses and onboard.
APS fail to ping the WAC: Check the network between the WAC and APS. The APs need to ping the WAC to discover its IP address and establish a CAPWAP tunnel. If there is a network problem between the WAC and APs, such as incorrect VLAN configuration or firewall blocking, the APs cannot ping the WAC and onboard.
Therefore, APS fail to be authenticated by the WAC - c, License resources on the WAC are insufficient - b, APS fail to obtain IP addresses - d, APS fail to ping the WAC - a is the correct answer. References: :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/ap-onboarding-failures
NEW QUESTION # 50
Which of the following statements about VXLAN is false?
- A. A Layer 3 VXLAN gateway is used for inter-subnet communication on a VXLAN network and communication with external non-VXLAN networks.
- B. Layer 2 and Layer 3 VXLAN gateways must maintain VBDIF interfaces. Otherwise, users cannot communicate with each other through these interfaces.
- C. 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.
- D. A VBDIF interface is a logical interface created based on a BD. It is similar to a VLANIF interface on a traditional network.
Answer: B
Explanation:
Explanation
B is false because only Layer 3 VXLAN gateways need to maintain VBDIF interfaces for inter-subnet communication on a VXLAN network or communication with external non-VXLAN networks. Layer 2 VXLAN gateways do not need VBDIF interfaces.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/vxlan-gateway
NEW QUESTION # 51
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?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
Explanation
In a dual-link backup scenario, when the active link recovers, the AP waits for 15 Echo intervals before switching back to the original primary WAC. This prevents frequent link switchovers caused by unstable links.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/dual-link-backup
NEW QUESTION # 52
On a campus network, which of the following problems may occur when you manually create a static VXLAN tunnel? (Select All that Apply)
- A. 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.
- B. A static VXLAN tunnel uses related protocols on the control plane, consuming device resources.
- C. Although the static VXLAN tunnel mode supports the distributed gateway scenario, the configuration involves a heavy workload and is complex to adjust.
- D. Remote MAC addresses can be learned only through data flooding.
Answer: A,C
Explanation:
Explanation
B is false because a static VXLAN tunnel does not use any protocols on the control plane, saving device resources.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/static-vxlan-tunnel
NEW QUESTION # 53
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