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Huawei H12-351_V1.0 exam is ideal for IT professionals who are looking to enhance their knowledge and skills in wireless networking. HCIE-WLAN (Written) V1.0 certification is highly recognized in the industry and is a testament to the candidate's expertise in wireless networking. HCIE-WLAN (Written) V1.0 certification provides a competitive advantage to the candidate and opens up new career opportunities and higher salaries.
NEW QUESTION # 12
Which of the following statements about EAP relay and EAP termination are false? (Select All that apply)
- A. 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.
- 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 encapsulates EAP packets sent by an 802. IX client Into RADIUS packets, without processing the data in the EAP packets.
- 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.
Answer: C,D
Explanation:
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
NEW QUESTION # 13
To which of the following scenarios is radio calibration applicable?
- A. High-density scenario
- B. Enterprise office scenario
- C. WDS or mesh backhaul scenario
- D. Rail transportation scenario
Answer: A
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 # 14
In a multicast solution, there must be reachable unlcast routes between multicast sources and receivers.
- A. True
- B. False
Answer: A
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 # 15
Which of the following components is not included In a typical RFID system?
- A. Router
- B. RFID reader
- C. RFID tag
- D. Information processing platform
Answer: A
Explanation:
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
NEW QUESTION # 16
Which of the following advantages does BSS coloring provide in Wi-Fi 6? (Select All that Apply)
- A. Higher packet rate on the air interface
- B. Higher concurrency in high-density scenarios
- C. Enhanced encryption on the air interface
- D. More efficient channel use
Answer: A,B,D
Explanation:
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
NEW QUESTION # 17
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. If load balancing is performed, the load percentage of AP_1 changes to 30%.
- B. The load balancing mechanism needs to be enabled. Then some STAs are steered from AP_1 to AP__2.
- 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%.
Answer: B,D
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 # 18
Which of the following user access authentication modes are supported In Huawel's CloudCampus Solution?
(Select All that Apply)
- A. MAC address authentication
- B. Portal authentication
- C. 802. IX authentication
Answer: A,B,C
Explanation:
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
NEW QUESTION # 19
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. The URL template is incorrectly configured.
- C. The DNS server IP address is not added to the authentication-free rule.
- D. HTTPS redirection is disabled.
Answer: A,B,C
Explanation:
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
NEW QUESTION # 20
In mesh networking, APs have different roles. Drag the AP roles on the left to the role descriptions on the right.
Answer:
Explanation:
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
NEW QUESTION # 21
Which of the following statements about the access layer design are true when Huawei's CloudCampus Solution is applied to small and midsize campus networks? (Select All that Apply)
- A. When selecting a switch, ensure that the following condition is met; Number of connected APs x AP power ^ Power provided by the PoE switch. Therefore, select PoE switches with a proper power supply based on the AP model and quantity.
- B. Select appropriate models of access switches based on whether PoE support is required and how many APs need to access the network.
- C. In the mini-store scenario, APs and egress devices must be deployed if Wi-Fi coverage is required. APs cannot directly connect to egress links and do not support NAT.
- D. For relatively large networks in midsize shopping malls, supermarkets, and primary/secondary education campuses, it is recommended that stack networking be used at the access layer. If a single device can provide sufficient access capacity for downstream terminals, single-device networking can be used at the access layer. If the upstream devices of access-layer devices are stacked, it is recommended that Eth-Trunks be used to connect to such upstream devices. If more APs need to be deployed, use the PoE switch to increase the number of APs to be connected.
Answer: A,B
Explanation:
Explanation
A is false because in the mini-store scenario, APs can directly connect to egress links and support NAT if Wi-Fi coverage is required. There is no need to deploy egress devices separately.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/access-layer-design
NEW QUESTION # 22
When calculating the number of APs, you can divide the total required bandwidth by the maximum bandwidth of a single AP.
- A. True
- B. False
Answer: B
Explanation:
Explanation
When calculating the number of APs, you cannot simply divide the total required bandwidth by the maximum bandwidth of a single AP. You also need to consider other factors such as signal coverage area, user density, interference level, and application type.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/calculation-of-the-number-of-aps
NEW QUESTION # 23
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. True
- B. False
Answer: A
Explanation:
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
NEW QUESTION # 24
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. Navi WAC Networking
- C. Fat AP networking
- D. Mesh networking
Answer: B
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 # 25
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 # 26
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. A master/backup switchback is triggered too quickly.
- B. The batch backup process cannot be started.
- C. Backup information is incomplete.
- D. Service data on the master and backup WACs is lost.
Answer: A,C
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 # 27
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