Free Practice Questions for the Huawei HCSP-O&M-DCS H23-021_V1.0 Exam (2026 Updated)

Exact Extract — DR Principles: Scheduled Migration:

“Deregister the VMs at the production site.”

Option C is false because Huawei's scheduled migration procedure requires deregistering the original production VMs, not deleting their underlying data or permanently removing the protected workloads.

Option A is correct. Scheduled migration begins by stopping production VMs to prevent further writes while the final storage synchronization is completed.

Option B is correct. The administrator manually starts the configured recovery plan through UltraVR at the disaster recovery site. UltraVR then coordinates the necessary migration and recovery activities.

Option D is correct. After synchronization completes, remote replication is stopped and the secondary LUN is promoted to become the active LUN. UltraVR registers and starts the DR VMs using the replicated VM disk data.

Option C is incorrect. The documented procedure specifies deregistration of VMs at the production site. Deregistration removes the VM registration from the virtualization management inventory without inherently destroying the virtual disks.

Deleting VM data instead of deregistering the VM would introduce unnecessary data-loss risks and could interfere with subsequent failback or reprotection operations.

Scheduled migration therefore follows a controlled sequence of workload shutdown, synchronization, LUN role transition, VM registration, service startup, and production VM deregistration.

Exact Extract — eCampusCore Multi-form Adaptation:

“Container management platform: Huawei container platform eContainer and third-party partner container platform (ACP) are supported.”

Technical Explanation:

All four options are correct because Huawei eCampusCore supports multiple infrastructure foundations and container management platforms.

The multi-form adaptation capability is designed to reduce coupling between software components and the underlying hardware environment. It enables the platform to be deployed across different enterprise architectures without requiring an entirely separate solution for each infrastructure type.

Option A is correct. Huawei eCampusCore supports Atlas server infrastructure, enabling deployment in appropriate intelligent computing scenarios.

Option B is correct. Third-party partner container platforms, identified as ACP in the training material, are supported as alternatives to Huawei's container platform.

Option C is correct. FusionCube is supported as a hyper-converged infrastructure foundation. The course specifies support for x86 or Arm architectures but does not support a hybrid x86/Arm architecture in this deployment context.

Option D is correct. Huawei-developed eContainer is a supported container management platform for deploying and managing eCampusCore components.

The underlying adaptation architecture uses component descriptions and metadata-driven deployment mechanisms to automate installation, configuration, interconnection, and upgrade activities.

This flexibility enables organizations to select infrastructure according to operational requirements while preserving a consistent eCampusCore service architecture.

Exact Extract — ECE Operation Process Overview:

“Preparations for the container service (software package interconnection and configuration operated by O & M administrators, others operated by operation administrators).”

Technical Explanation:

Options B and D are correct because they represent container service preparation activities assigned to the operations management workflow rather than infrastructure interconnection or Kubernetes cluster creation.

Huawei DCS provides Elastic Container Engine (ECE) capabilities for deploying and managing Kubernetes-based container environments. Preparing these services requires coordination between infrastructure O & M administrators and operation administrators.

Option A is incorrect. Interconnecting with NCE-Fabric resources is explicitly assigned to O & M administrators. This includes configuring cloud platform interconnection information and establishing the relevant SDN management connectivity.

Option B is correct. Configuring NIC routes for container nodes is included in the container service preparation workflow and falls under the operation administrator activities identified in the course.

Option C is incorrect. Creating a Kubernetes cluster belongs to the subsequent cluster management phase. It is performed through the eDME operation portal using the appropriate VDC administrator or operator permissions rather than being classified as an initial preparation task.

Option D is correct. Creating the required VDC account establishes the administrative and tenant resource context needed before container service provisioning.

Correctly separating these activities ensures that infrastructure networking is prepared before tenant-level container resources are created.

Exact Extract — Resource Provisioning in the Data Center Virtualization Scenario:

“The eDME O & M portal is used to orchestrate basic configuration capabilities of a cloud base in a unified manner.”

Technical Explanation:

The statement is true because centralized resource provisioning is a core capability of the Huawei DCS eDME management platform.

In a traditional infrastructure environment, administrators may need to configure virtualization resources, storage arrays, and network switches independently through their respective management interfaces.

This fragmented approach increases configuration effort and the possibility of inconsistencies between infrastructure layers.

Huawei eDME provides unified management of these resources through a common management portal. Once the required infrastructure components have been integrated, administrators can perform supported provisioning operations without manually coordinating every individual resource through separate consoles.

The platform can coordinate management of FusionCompute virtualization resources, storage devices, physical servers, and network switches.

For example, VM provisioning may require compute resources, a suitable datastore, and network configuration. eDME can orchestrate supported configuration tasks across these resource categories.

This reduces repetitive administration and improves deployment consistency.

The eDME O & M portal primarily supports infrastructure operations in the non-multi-tenant scenario. In multi-tenant environments, the separate operation portal provides tenant-oriented cloud service provisioning and management.

Exact Extract — Virtual Resource Pool Management: Planning Overview:

“Currently, eDME supports only one region and all devices managed by eDME belong to the same region.”

Technical Explanation:

Option C is false in the documented DCS version because eDME supports only one region, even though regional planning is influenced by service-level requirements.

Option A is correct. The course specifies that only clusters belonging to the same FusionCompute system can be added to an AZ. This ensures consistent virtualization resource management within the availability zone.

Option B is correct. A FusionCompute cluster can belong to a maximum of two availability zones, allowing the relevant infrastructure resources to participate in the supported AZ organization.

Option C is incorrect. Although general regional planning considers access latency and SLA requirements, the documented eDME implementation supports only one region. Administrators therefore cannot arbitrarily increase the number of regions according to SLA requirements.

Option D is correct. A region can contain multiple availability zones, including five AZs. Availability zones divide infrastructure into fault-isolation domains to improve service resilience.

The distinction between regions and availability zones is important. A region represents the broader geographical resource-management scope, while an AZ organizes infrastructure into relatively independent fault domains.

Continuous Data Protection is an advanced protection mechanism provided by Huawei UltraVR for supported hyper-converged infrastructure environments. Unlike conventional periodic backups, CDP continuously captures changes to protected data, allowing highly granular recovery.

Option A is correct. CDP supports recovery of protected VM disks to specific recovery points. Administrators can restore a VM, individual protected disks, or files without necessarily recovering every component of the original virtual machine. Recovery points are limited to the configured and available protection history.

Option B is correct. Huawei's implementation provides protection at one-second granularity and records data changes through the I/O capture and distribution mechanisms. This enables recovery to a specified second within the supported protection window.

Option C is incorrect. It confuses recovery time objective with recovery point objective. CDP offers a near-zero RPO, meaning that the potential amount of lost data is extremely small. This does not establish a near-zero RTO, which measures how long service restoration takes.

Option D is incorrect. The training material specifies a recovery window of up to seven days, not 30 days.

CDP therefore provides granular disk recovery and second-level data protection while minimising potential data loss.

Course Extract — ECE:

“Elastic Container Engine (ECE) manages for cluster lifecycle, container images, and containerized applications”

Technical Explanation:

Option D is correct because Kubernetes Secrets are designed to store sensitive information required by containerized workloads, including authentication credentials, tokens, private keys, and TLS certificates.

Huawei DCS provides Kubernetes cluster management through Elastic Container Engine. Kubernetes objects define how applications are configured, connected, secured, and executed within these clusters.

Option A is incorrect. Ingress manages HTTP and HTTPS routing from external clients to services running inside a Kubernetes cluster. It does not serve as a general credential store.

Option B is incorrect. ConfigMaps store non-confidential configuration information as key-value pairs. Although their data structure resembles that of Secrets, they are not intended for confidential credentials.

Option C is incorrect. A Kubernetes Service provides a stable networking abstraction for accessing a set of Pods, usually through a virtual IP address or DNS name.

Option D is correct. Secrets provide a dedicated resource type for confidential application configuration and credentials.

A security qualification is essential: Kubernetes Secret values are commonly base64-encoded, which is not encryption. Production environments should enforce appropriate RBAC permissions and enable encryption at rest for sensitive data.

Option C is false because it incorrectly assigns the two additional eDME tenant virtual machines to the compute cluster instead of the management domain.

In Huawei DCS separated deployment, the management and compute domains have distinct responsibilities. The management domain hosts infrastructure management components, including eDME, VRM, and optional management software.

A non-multi-tenant eDME deployment requires three management VMs. Enabling multi-tenant operations requires two additional tenant-operation VMs, resulting in five eDME VMs. These components remain part of the management domain architecture.

Option A is correct. When scale-out storage requires FusionStorage Manager, its management components are deployed within the management cluster to support storage administration, monitoring, and configuration.

Option B is correct. When HiCloud is added to the separated deployment architecture, the reference design requires an additional management node, increasing the planned management nodes from three to four.

Option D is correct. eDataInsight uses components such as CloudSOP and NDP within the compute domain according to the DCS node software stack.

Correct component placement is important for resource isolation, management availability, and predictable service performance. Confusing management-domain VMs with compute-domain workloads can lead to an incorrect deployment architecture.

Exact Extract — VPN Application Scenarios:

“With a VPN between a VPC and a single data center”

Technical Explanation:

Options B and C are correct because VPN and VPC services work together to provide private connectivity between Huawei DCS cloud resources and existing on-premises data centers.

Option B is correct. A VPN establishes an encrypted communication tunnel between the cloud network and an external enterprise network. This enables legacy applications and newly deployed cloud services to exchange information securely across an underlying IP network.

Option C is correct. A VPC provides the logically isolated virtual network in which DCS cloud resources operate. It defines subnets, addressing, routing, and relevant security policies.

Together, VPN and VPC services provide a hybrid-cloud connectivity architecture that allows existing systems to remain operational while new applications are deployed on DCS.

Option A is incorrect. ELB distributes application requests across backend servers. It does not independently establish private connectivity between separate data centers.

Option D is incorrect. DNS resolves domain names to addresses and supports service discovery, but it does not establish the underlying network communication path.

Huawei's VPN application scenarios explicitly include single-site and multi-site hybrid-cloud deployment, enabling enterprises to interconnect legacy infrastructure with cloud-hosted computing and storage resources.

Exact Extract — Resource Provisioning in the Non-Multi-Tenant Scenario:

“When three eDME VMs are deployed, the operation portal is unavailable.”

Technical Explanation:

The statement is false because the eDME operation portal is associated with multi-tenant cloud operations rather than the standard non-multi-tenant virtualization management scenario.

Huawei DCS distinguishes between infrastructure virtualization management and lightweight cloud service operations.

In the non-multi-tenant scenario, eDME provides centralized infrastructure O & M and virtualization resource management. Administrators can create and manage virtual machines using the eDME O & M portal and its associated virtualization management functions.

However, the operation portal is not available when only the three standard eDME management VMs are deployed.

To enable multi-tenant cloud operations, two additional eDME tenant-operation VMs must be installed. These components support operation portal functions such as tenant resource management, quotas, subscriptions, and cloud service provisioning.

ECS provisioning is part of the multi-tenant compute service framework. It allows authorized cloud users to request computing resources through the cloud operations interface.

Therefore, although a non-multi-tenant administrator can provision conventional VMs, the specified ECS provisioning activity cannot be performed through an unavailable eDME operation portal.

This distinction prevents confusion between VM lifecycle management and tenant-oriented cloud service provisioning.

Exact Extract — Virtual Resource Pool Management: Managing System AZs:

“Adding a cluster to an AZ: Users have logged in to the eDME O & M portal.”

Technical Explanation:

Option B is false because cluster association with system availability zones is an infrastructure management operation performed through the eDME O & M portal, not the tenant-oriented eDME operation portal.

An availability zone is a fault-isolation unit within a region. In Huawei DCS, AZ design enables administrators to organize compute, storage, and networking resources according to physical infrastructure boundaries.

Option A is correct. Administrators can bring an AZ online through the O & M portal when the availability zone meets the required conditions and its current operating status is offline.

Option B is incorrect. Adding a FusionCompute cluster to an AZ is performed through the eDME O & M portal. The operation also requires the appropriate FusionCompute licensing and configuration prerequisites.

Option C is correct. AZs are designed to provide physical isolation of infrastructure resources, including power supply and networking, to reduce the impact of localized failures.

Option D is correct. A region can contain multiple AZs, allowing organizations to distribute workloads across independent fault domains.

The distinction between O & M and operation portals is fundamental: infrastructure administrators manage AZs and cluster associations, while tenant administrators consume and manage the cloud resources made available through those infrastructure configurations.

Exact Extract — ECS Logical Architecture:

“ECS_UI is a console centered on the ECS service and manages relevant resources.”

Technical Explanation:

The statement is true because the ECS service architecture separates user-facing request handling from backend resource orchestration.

ECS_UI provides the console interface through which users manage ECS resources. It receives console operations and communicates with the Composite API layer, which coordinates the corresponding backend activities.

Composite API acts as an orchestration interface for the computing, storage, and networking resources required by ECS operations.

For example, creating an ECS involves more than allocating CPU and memory. The system may need to create an EVS volume, configure a virtual network port, associate the appropriate networking resources, and request instance creation from FusionCompute.

Composite API coordinates these actions through the relevant service interfaces.

The responses are returned to ECS_UI so that users can review the results through the console.

This layered architecture separates presentation, authentication, service management, and resource provisioning responsibilities.

It also enables the operation portal to integrate quota management, product management, order management, and metering with underlying infrastructure services.

The request flow described in the question therefore corresponds to the ECS logical architecture shown in the official course.

Option B is false because creating a VM from a template does not require every startup-related configuration to be inherited without modification.

Huawei DCS provides template-based VM provisioning to simplify repetitive virtual machine creation. Templates preserve reusable operating system and hardware configuration information, reducing deployment time and improving configuration consistency.

However, administrators retain control over several settings during VM creation.

Option A is correct. The provisioning workflow allows administrators to configure VM identity information and customize supported guest operating system attributes, including applicable administrator credentials.

Option C is correct. In the non-multi-tenant virtualization scenario, administrators provision and manage virtual machines through the eDME O & M portal.

Option D is correct. VM provisioning requires the appropriate virtualization resource management permissions. These permissions ensure that administrators can operate only on authorized infrastructure resources.

Option B is incorrect because the provisioning procedure explicitly includes configuration of the VM boot mode and startup behavior. The administrator can determine whether the newly created VM should start immediately rather than being required to inherit every startup setting from the template.

Template-based provisioning balances configuration reuse with deployment flexibility. Its purpose is to standardize common VM settings while permitting appropriate customization of the newly provisioned resource.

Options A and D accurately describe DCS storage deployment flexibility and SmartKit installation capabilities.

Option A is correct. eDME deployment supports local disk and external storage configurations according to the infrastructure design. During planning, administrators determine which storage resources will host management VMs. If external storage is used, the storage resources must be connected to the virtualization platform and made available to the relevant management VMs.

Option D is correct. The SmartKit DCS deployment tool automates major infrastructure installation activities, including CNA installation, VRM deployment, and eDME VM provisioning. These activities form the foundation for deploying a functional DCS management environment.

Option B is incorrect. Planning management-system data space is a deployment preparation activity. The administrator must determine storage capacity, redundancy, and placement requirements before installation. The deployment tool consumes the resulting parameters rather than independently designing the storage-capacity plan.

Option C is incorrect. eDME is not mandatory in every DCS deployment scenario. A single-hypervisor deployment may use FusionCompute without eDME where an existing external management platform provides the required management capabilities.

The essential deployment distinction is between planning, infrastructure installation, and optional management-component installation. SmartKit automates supported installation tasks but does not eliminate the requirement for architectural planning.

Exact Extract — Network Service: ELB:

“ELB can expand the access capability of application systems through traffic distribution and achieve a higher level of fault tolerance and performance.”

Technical Explanation:

Options A, B, and D provide complementary capabilities that support the performance, scalability, and availability requirements of an online education platform.

Option A is correct. Elastic Load Balance distributes incoming requests across multiple backend ECSs. This prevents individual application servers from becoming overloaded and improves service responsiveness during periods of high demand.

Option B is correct. Elastic Cloud Server provides the computing infrastructure required to operate web applications, databases, caching systems, and supporting application components. Appropriate ECS specifications and resource allocation help maintain application performance.

Option C is not selected. A VPN establishes private connectivity between networks or users and enterprise resources. Although it provides secure communication, it does not inherently improve application throughput or reduce latency for Internet-facing education services.

Option D is correct. Auto Scaling automatically adjusts computing resources in response to workload conditions or configured schedules. It helps maintain sufficient capacity when application demand changes.

For example, an online education service may experience significant increases in concurrent users during examinations or scheduled lectures.

Combining ECS, ELB, and AS enables the application to distribute incoming requests, provide appropriate compute capacity, and adapt to workload fluctuations.