H13-821-V3.5: HCIP - Cloud Service Solutions Architect

By Huawei · Browse Mode
About the Exam

This exam validates the ability to design Huawei Cloud solutions for traditional enterprise applications and cloud-native architectures. It covers enterprise application architectures and cloud technologies, conventional application architecture design, cloud-native application architecture design, Huawei Cloud O&M, and Huawei Cloud innovations and solutions. It is intended for people who want to become cloud service architects and demonstrates capability to migrate enterprise workloads to Huawei Cloud.

Exam Topics

  • Enterprise Application Architectures and Cloud Technologies5%
  • Cloud-based Architecture Design of Conventional Applications50%
  • Cloud Native Application Architecture Design30%
  • Huawei Cloud O&M Solution10%
  • Huawei Cloud Innovations and Solutions5%

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Last updated June 22, 2026 at 3:30 PM

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QuestionQ1

Cloud-based Architecture Design of Conventional Applications

Scalability generally means that a system or service can accommodate changes in scale by flexibly adjusting its architecture or resource configuration as business demand increases. Which of the following are examples of vertical scaling?

Choose two
Explanation

Vertical scaling modifies the resources of one existing instance, such as increasing or decreasing its vCPU and memory capacity. Changing the RDS instance from 8 vCPUs and 32 GB to 4 vCPUs and 16 GB, and changing an ECS from 2 vCPUs and 4 GB to 4 vCPUs and 8 GB, are vertical scaling actions. Adding replicas or additional ECS instances is horizontal scaling.

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QuestionQ2

Cloud-based Architecture Design of Conventional Applications

In architecture design, security generally means the capacity of a product or service to remain operational or executable under specified conditions and for a defined period. This attribute reflects both the product’s availability and maintainability.

Explanation

The described attribute is reliability: it concerns continuing to perform under stated conditions over a specified timeframe and is associated with availability and maintainability. Security instead addresses protection from unauthorized access and harmful actions.

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QuestionQ3

Enterprise Application Architectures and Cloud Technologies

Which of the following is not a major factor that drives enterprises to migrate to the cloud?

Explanation

Business requirements, executive mandates, and technical innovation commonly drive enterprise cloud adoption. Government incentives are not generally a major cloud-migration driver.

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QuestionQ4

Enterprise Application Architectures and Cloud Technologies

High availability is an important design characteristic. Which of the following is not related to high availability?

Explanation

Auto Scaling supports availability by maintaining healthy capacity, and Elastic Load Balancing routes traffic across healthy targets. Disaster-recovery backup services support restoration of critical services after failures. A higher maximum network bandwidth for one compute instance only increases potential throughput; it does not add redundancy or enable failover and therefore is not a high-availability feature.

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QuestionQ5

Cloud-based Architecture Design of Conventional Applications

A customer bought compute-intensive Elastic Cloud Servers (ECSs) and deployed Linux applications to test services. The ECSs use pay-per-use billing. When no tests are running, some ECSs are stopped to reduce costs. After the ECSs are stopped, which of the following resources are not billed?

Choose two
Explanation

For a stopped common pay-per-use ECS, the compute resources—vCPUs and memory—are released and are no longer billed. Associated EVS disks and EIP bandwidth remain billable while those resources are retained.

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Topics covered
Enterprise Application Architectures and Cloud TechnologiesCloud-based Architecture Design of Conventional ApplicationsCloud Native Application Architecture DesignHuawei Cloud O&M SolutionHuawei Cloud Innovations and Solutions
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