Huawei Updated H13-811_V3.5 Exam Questions and Answers by hailey

The correct advantages are B, C, and D. Huawei Cloud EVS provides a range of disk specifications and performance classes so customers can select storage appropriate for different workloads and budgets. Huawei's EVS overview explicitly lists various disk types and high security/reliability among its principal benefits.

EVS is also easier to manage than traditional physical storage. Huawei documentation comparing EVS with traditional hard disks states that EVS disks provide higher reliability and I/O throughput and are easier to use. Cloud-based provisioning eliminates much of the physical installation, replacement, cabling, and capacity-management work associated with conventional disks.

Option A is incorrect. EVS is block storage intended for cloud servers and cannot be used independently. Huawei explicitly states that EVS disks must first be attached to a supported server and then initialized, partitioned, and formatted before applications can persist data on them.

High reliability derives from distributed storage and data-protection mechanisms, while the range of available disk classes enables workload-specific performance selection.

Therefore, various disk types, ease of use, and high reliability are advantages; independent use is not.

Reference topics: EVS Advantages; Block Storage; EVS Reliability; EVS Disk Types.

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1 → PaaS

2 → IaaS

3 → SaaS

The three mappings correspond directly to Huawei Cloud's definitions of the standard cloud service models. Infrastructure as a Service (IaaS) supplies foundational infrastructure resources such as compute, storage, and networking. Huawei Cloud services such as ECS, VPC, VPN, and OBS are representative infrastructure-level services. Therefore, the description referring to computers, storage devices, and networks maps to IaaS.

Platform as a Service (PaaS) provides managed platform capabilities used to develop, deploy, and operate applications. Huawei Cloud characterizes PaaS as including middleware, database platforms, development environments, microservice capabilities, and related application-platform resources. Consequently, the database/middleware/MySQL/MongoDB/Java-oriented description belongs to PaaS.

Software as a Service (SaaS) delivers complete applications to end users. Customers consume the application rather than maintaining the underlying operating system, middleware, runtime, and infrastructure. Enterprise applications, messaging systems, email services, collaboration applications, and similar ready-to-use software fit this model.

The correct progression is therefore PaaS → IaaS → SaaS for the three descriptions shown in the question.

Reference topics: Cloud Service Models; IaaS; PaaS; SaaS; Huawei Cloud Service Architecture.

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The statement is FALSE . Although an ECS group does logically organize ECS instances, its placement behavior is the opposite of what the second sentence states. Huawei Cloud ECS groups support the anti-affinity policy , which is designed to place ECS instances belonging to the same group on different physical hosts .

Anti-affinity is an availability and fault-isolation mechanism. If multiple application instances were placed on one physical server, failure of that host could simultaneously disrupt every application instance. Distributing the ECSs across different hosts reduces this correlated-failure risk and improves service reliability, high availability, and disaster tolerance.

Huawei's ECS documentation explicitly states that ECS groups support the anti-affinity policy and that ECSs in an anti-affinity group are deployed on different hosts. When an existing ECS is added to such a group, Huawei Cloud may even reallocate its host so that the placement requirement can be maintained.

Therefore, the first proposition—an ECS group logically groups ECSs—is valid. However, the assertion that ECSs in that group are created on the same physical server by default contradicts the anti-affinity design. Since the overall statement contains this incorrect condition, the correct answer is FALSE .

Reference topics: ECS Groups; Anti-Affinity Policy; Host Placement; High Availability.

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The statement is FALSE because the management tracker used for general cloud-resource auditing does not need to be created manually when CTS is first enabled. Huawei Cloud explicitly states that when CTS is enabled for the first time, a management tracker named system is created automatically.

The management tracker identifies and associates with the cloud services used by the account and records management operations, including resource creation, modification, query, login-related actions, and deletion. Therefore, the portion of the statement saying that the user must manually create the tracker is technically incorrect.

Huawei does allow users to create additional data trackers manually. These trackers are specifically designed to record operations performed on data in OBS buckets, such as uploads and downloads. That is different from the automatically created management tracker.

Huawei's official getting-started workflow is explicit: open CTS, choose Enable CTS , and the system automatically creates the management tracker named system. Configuration such as OBS or LTS trace transfer can then be added if long-term retention is required.

Therefore, enabling CTS is necessary, but manually creating its primary management tracker is not.

Reference topics: Cloud Trace Service; Management Tracker; Data Tracker; Enabling CTS.

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