Huawei H12-351_V1.0 - HCIE-WLAN (Written) V1.0

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

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

FF02::18C is an IPv6 multicast address. An IPv6 multicast address starts with FF and identifies a group of interfaces that belong to the same multicast group. The other options are not IPv6 multicast addresses. 2222::11 is an IPv6 unicast address, FE80::A is an IPv6 link-local address, and FC00::1 is an IPv6 unique local address.

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.

Huawei’s CloudCampus Solution supports three user access authentication modes: 802.1X authentication, MAC address authentication, and Portal authentication.

In Huawei’s smart roaming solution, the WAC can discover and maintain neighboring AP entries of STAs by using two methods: passive listening and active scanning. Passive listening means that the AP listens to the Probe frames sent by STAs and reports them to the WAC. Active scanning means that the AP periodically and proactively scans neighboring APs of STAs and reports them to the WAC.