H12-351_V1.0 HCIE-WLAN (Written) V1.0 Questions and Answers

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

The home agent is a device that communicates with the gateway on the STAs’ home network at Layer 3 and maintains the binding entries of STAs’ home addresses and care-of addresses. A home WAC can function as a home agent of STAs, while a home AP cannot.

References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/mobile-ip

According to the Huawei documents and resources, the HLD phase is the high-level design phase of a WLAN project. It involves the following items:

Capacity planning: Determines the number and types of devices required for the WLAN network based on the customer’s requirements and network scale.

Network design: Designs the network topology, IP addressing scheme, VLAN division, security policies, and other network parameters for the WLAN network.

Deployment planning: Plans the deployment sequence, schedule, resources, and risks for the WLAN project.

AP position planning is not involved in the HLD phase. It is part of the LLD phase, which is the low-level design phase of a WLAN project. It involves the detailed design of AP positions, antenna types, channel allocation, power adjustment, and other wireless parameters for the WLAN network. Therefore, C is the correct answer. References: : https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/wlan-project-design

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

According to the Huawei documents and resources, the encapsulation formats used for EAP termination in 802.1X authentication are as follows:

B.  EAPoL: The client and access device exchange information using EAPoL packets across the LAN 2 .

C.  EAPoR: The access device directly encapsulates the received EAP packets into RADIUS using EAP over RADIUS (EAPoR) packets 2 .

Therefore, B and C are the correct answers. References:  2 : https://support.huawei.com/enterprise/en/doc/EDOC1100086527

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

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

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

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

The WPA3 transition mode applies to both WPA3-Enterprise and WPA3-Personal. In this mode, WPA3 and WPA2 can coexist for a period of time in the future to enable WPA3-incapable STAs to access a WPA3-configured network.

References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/wpa3-transition-mode

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

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

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 service 1 .

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 networks 1 .

Neighbor MP: Neighboring MP with which an MP prepares to establish a mesh link 1 .

Candidate MP: AP that directly communicates with a mesh node 2 .

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-networking

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

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