Free Practice Questions for Huawei H12-811_V2.0 Exam

This statement is false. In Layer 3 in-path WLAN networking, the WAC and Fit APs communicate over Layer 3, which means the APs must discover the WAC through methods that are valid across Layer 3 boundaries. Broadcast is a Layer 2 mechanism and cannot normally be used for WAC discovery across Layer 3 networks. Therefore, saying that APs can obtain the WAC address through broadcast or DHCP in this scenario is incorrect.

In Huawei WLAN deployments, Fit APs can commonly discover the WAC address through methods such as DHCP option-based discovery, DNS, or preconfigured controller information, depending on the deployment model and product features. Because the WAC and AP are not in the same Layer 2 broadcast domain in Layer 3 in-path networking, broadcast discovery is not the standard mechanism here. HCIA-Datacom stresses the difference between Layer 2 direct discovery and Layer 3 discovery methods because this affects initial AP registration, CAPWAP establishment, and troubleshooting when APs fail to go online. Understanding the discovery mechanism is essential when planning IP addressing, DHCP options, and controller placement in enterprise WLAN designs.

A, B, D, B, A, D

Interface-based VLAN assignment associates an incoming untagged Ethernet frame with the VLAN configured on its access interface.

On SW1, GE1/0/1 connects PC1 and therefore belongs to VLAN 10. GE1/0/2 connects PC2 and belongs to VLAN 20.

On SW2, GE1/0/1 connects PC3 and belongs to VLAN 20, while GE1/0/2 connects PC4 and belongs to VLAN 10.

The inter-switch interfaces GE1/0/3 must carry traffic belonging to both VLANs while preserving VLAN identification. Configuring these interfaces as hybrid ports with tagged forwarding for VLANs 10 and 20 achieves this requirement.

Using untagged forwarding for both VLANs on the inter-switch connection would remove their VLAN tags and prevent the receiving switch from reliably distinguishing the two VLANs.

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MAC_C, MAC_D, 192.168.2.2, 192.168.1.2

The HCIA-Datacom training material explains that routers forward packets based on destination IP addresses while changing the data-link encapsulation at each hop.

When PC2 sends data to PC1, the source IP address is 192.168.2.2 and the destination IP address is 192.168.1.2.

These IP addresses remain unchanged as the packet travels across R2 and R1 during conventional routing.

However, the Ethernet source and destination MAC addresses are replaced at each routing hop.

When R2 forwards the packet toward R1, it uses its outgoing interface MAC address, MAC_D, as the source MAC address.

The destination MAC address is MAC_C, which belongs to R1 ' s interface connected to R2.

Therefore, the packet forwarded from R2 contains destination MAC MAC_C, source MAC MAC_D, source IP 192.168.2.2, and destination IP 192.168.1.2.

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LACP mode and manual load-balancing mode behave differently when an Eth-Trunk contains a link connected to the wrong peer. In LACP mode, member interfaces exchange LACPDUs and the switches determine which physical links can participate in the same aggregation. GE1/0/1 through GE1/0/3 are correctly connected between SW1 and SW2, so they can form an operational LACP Eth-Trunk. GE1/0/4 is connected to SW3 and cannot successfully negotiate as a member of the SW1-SW2 LAG; it is therefore not used for service forwarding to SW3. This makes A and B true. In manual mode, there is no LACP negotiation to validate that every member terminates on the same peer. If GE1/0/4 is manually placed in the trunk, the device may treat it as a forwarding member and hash some traffic onto that link toward SW3. The trunk does not automatically go Down solely because of that incorrect peer connection. Therefore C is false and D is true.

The switch configuration places GE1/0/1 in VLAN 10 and GE1/0/2 in VLAN 20. The inter-switch trunk carries both VLANs.

Initially, PC1 connects through GE1/0/1, placing its traffic in VLAN 10. It can therefore communicate with PC2, which belongs to the same VLAN.

After PC1 moves to GE1/0/2, its traffic belongs to VLAN 20. Consequently, PC1 can communicate with PC3 rather than PC2.

Statement B is false because PC1 can still reach PC3 after the interface change.

Statement D is also false because dynamic MAC address learning associates the source MAC address, VLAN ID, and ingress interface identifier. It does not create the stated mapping using the interface ' s own MAC address.

Statements A and C correctly describe the expected Layer 2 communication.

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ARP resolves an IPv4 address to a Layer 2 MAC address only within the local broadcast domain. When Host A determines, from its IP address and subnet mask, that Host B is on a different subnet, Host A does not broadcast an ARP request for Host B ' s MAC address. Instead, it forwards the packet to its default gateway. If the gateway ' s MAC address is not already cached, Host A broadcasts an ARP request for the gateway interface ' s IPv4 address. The gateway replies with its own MAC address, and Host A uses that MAC address as the Ethernet destination while retaining Host B ' s IP address as the IP destination. The router then forwards the packet toward Host B and may perform ARP on the destination subnet to learn Host B ' s MAC address. Therefore, the statement incorrectly describes cross-subnet forwarding as direct ARP resolution between the two hosts. The correct answer is FALSE, option B.

Huawei ' s Wi-Fi 7 documentation describes several technologies introduced or enhanced relative to Wi-Fi 6 to increase throughput, spectrum efficiency, and reduce latency. 4096-QAM raises modulation density from the 1024-QAM maximum associated with Wi-Fi 6, allowing more bits to be carried per modulation symbol under suitable radio conditions. Multi-RU allows one user to be assigned multiple resource units, improving spectrum scheduling flexibility compared with the Wi-Fi 6 restriction of a user operating within its assigned RU. Multi-link operation allows a station to establish and use links across multiple bands or radios as a coordinated connection. Wi-Fi 7 also enhances MU-MIMO capabilities, increasing the ability to serve multiple users and exploit additional spatial resources. Huawei product documentation commonly lists 4096-QAM, multi-RU, MLO/multi-link, and enhanced MU-MIMO among Wi-Fi 7 improvements built on Wi-Fi 6. Therefore, each technology listed in the question contributes to Wi-Fi 7 performance improvement, and the verified selection is A, B, C, and D.

The statement is incorrect because RIP is a distance-vector routing protocol, whereas OSPF and IS-IS are link-state routing protocols.

According to the HCIA-Datacom routing protocol material, distance-vector protocols exchange routing information with neighboring routers. RIP uses hop count as its routing metric to determine the distance to destination networks.

Link-state protocols operate differently. Routers establish neighbor relationships and exchange Link State Advertisements (LSAs), which describe their interfaces, connected networks, and topology information.

Each router uses the collected link-state information to build a link-state database and calculate the best paths using a shortest-path algorithm.

OSPF and IS-IS use this link-state approach, but RIP does not.

Therefore, although the first part of the statement correctly describes link-state routing behavior, including RIP among link-state protocols makes the complete statement FALSE.

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Wi-Fi 7 supports operation in the 2.4 GHz, 5 GHz, and 6 GHz frequency bands, so options A, C, and D are correct. These three bands together provide flexible coverage and capacity options. The 2.4 GHz band offers better propagation and wider coverage, while the 5 GHz and 6 GHz bands provide more channels, higher capacity, and better support for high-speed, low-latency services.

Option B, 9.6 GHz, is incorrect because it is not a Wi-Fi 7 operating band. HCIA-Datacom WLAN content highlights Wi-Fi 7 as a major advancement in wireless performance, bringing improvements in throughput, channel usage, spectrum efficiency, and latency characteristics. The addition and use of the 6 GHz band is especially important because it expands available spectrum resources and helps reduce contention in dense wireless environments. In practical enterprise WLAN design, understanding supported frequency bands is essential for channel planning, interference control, device compatibility assessment, and service optimization. This question checks whether the learner can correctly identify the standard operating bands used by modern Wi-Fi 7 networks.

The customer requires centralized processing of wireless traffic without forwarding ordinary wired traffic through the WAC.

According to the HCIA-Datacom WLAN architecture material, off-path networking allows the WAC to connect to the existing network without operating as an aggregation switch for wired user traffic.

Layer 3 off-path networking allows the WAC and Fit APs to communicate across different IP subnets.

Tunnel forwarding encapsulates wireless user traffic into CAPWAP data tunnels and sends it to the WAC for centralized forwarding and security policy enforcement.

Direct forwarding would allow wireless traffic to bypass the WAC, failing the requirement for centralized wireless traffic management.

In-path networking could place the WAC in the forwarding path of wired services, which is not desired.

Therefore, off-path Layer 3 networking with tunnel forwarding satisfies the stated requirements.

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