H13-811_V3.5 Exam Results

The statement is FALSE . Huawei Cloud explicitly supports using VPN to establish communication between VPCs deployed in different regions . The Huawei Cloud VPC FAQ describes this architecture directly: VPCs in the same region can be connected by VPC peering, while VPCs in different regions can establish connectivity through VPN. In the VPN design, each VPC uses a VPN gateway, and the two gateways establish an encrypted connection over the Internet. The VPC CIDR blocks are configured as the local and remote subnets.

This distinction is central to the HCIA V3.5 networking domain. VPC peering is region-scoped : two VPCs connected through a peering connection must reside in the same region. VPN, by contrast, can establish encrypted connectivity between geographically separated VPC networks. Huawei's VPN documentation specifies creating a VPN gateway for each VPC, creating VPN connections, configuring the peer gateway EIP, defining peer subnets, and applying matching cryptographic parameters.

Consequently, saying that Huawei Cloud VPN “does not support” cross-region VPC communications directly contradicts the supported VPN deployment model.

Reference topics: Virtual Private Network; Cross-Region VPC Connectivity; VPC Peering; VPN Gateways.

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Options B and C are incorrect because they reverse the isolation characteristics of IAM projects and enterprise projects . Huawei Cloud defines enterprise projects as a mechanism for grouping and managing resources across regions. Resources assigned to different enterprise projects are logically isolated , and a single enterprise project can contain resources residing in multiple regions. Supported resources can also be added to, removed from, or transferred between enterprise projects. Consequently, statements A and D correctly describe Enterprise Project Management.

IAM projects operate differently. Huawei Cloud documentation states that IAM projects are region-oriented and are used to group and physically isolate resources within a region . A project corresponds to a region, and an IAM project does not provide the cross-region logical grouping model associated with enterprise projects.

Therefore, B is wrong because it attributes physical, same-region isolation to enterprise projects, while C is wrong because it attributes logical isolation to IAM projects. The two concepts are intentionally distinguished in Huawei Cloud architecture: IAM project = regional/physical isolation; enterprise project = cross-region/logical resource organization .

Reference topics: IAM Projects; Enterprise Projects; Resource Isolation; Enterprise Management.

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Memory-optimized ECSs are specifically designed for the workload described. Huawei Cloud defines memory-optimized ECSs as instances that excel at processing large in-memory datasets and high-throughput networking . They are intended for memory-intensive workloads involving large datasets, frequent or heavy data access, and requirements for rapid data processing and exchange.

The scenario deliberately combines several identifying characteristics: large-memory datasets, substantial data volumes, high numbers of access requests, demanding network performance, and rapid data transfer and processing. These characteristics correspond directly to the design profile of the memory-optimized ECS family. Huawei lists representative applications such as high-performance databases, in-memory databases, distributed memory caches, data analysis and mining, Hadoop, Spark, e-commerce, and other enterprise applications.

Ultra-high I/O instances emphasize extremely high storage IOPS and low disk latency. High-performance computing instances are optimized primarily for compute-intensive scientific or engineering workloads. Although “large-memory” may appear plausible, memory-optimized is the ECS category whose official description explicitly combines large in-memory datasets with high-throughput networking and heavy data access.

Therefore, D is the precise Huawei Cloud classification required by the scenario.

Reference topics: ECS Types and Specifications; Memory-Optimized ECSs; Memory-Intensive Workloads; High-Throughput Networking.

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Option B is incorrect . Huawei Cloud explicitly requires subnet CIDR blocks within the same VPC to be unique and not overlap . Allowing overlapping subnets would make local route selection ambiguous and create address conflicts inside the VPC. Huawei's subnet definition therefore states that subnets in a VPC cannot overlap with each other.

Option A is correct for subnet planning: Huawei advises users to plan subnet address ranges carefully because a subnet's CIDR block cannot be changed after creation. This is why future capacity requirements should be considered before allocating subnet prefixes.

Option C is also consistent with Huawei's VPC definition. A subnet represents a unique CIDR block containing an IP address range inside a VPC, and VPC resources requiring private networking are deployed into these subnets. Option D is correct because the subnet CIDR must fall within the VPC's address range. Huawei's network-planning guidance explicitly states that the subnet CIDR block must be within the VPC CIDR block and that subnet CIDR blocks in the VPC must be unique.

Thus, the only incorrect planning statement is B .

Reference topics: VPC and Subnet Planning; CIDR Blocks; Subnet Addressing; VPC Network Design.

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