Pass the Huawei HCIP-Cloud Computing H13-527_V5.0 Questions and answers with CertsForce

The statement is TRUE . Official OpenStack documentation describes Cinder, the Block Storage service, as providing on-demand, self-service access to block storage resources via abstraction and automation on top of other block storage devices . That wording is important because it shows that Cinder is not itself a physical storage technology . Instead, it presents a unified service layer that works with many different backend storage systems through drivers.

OpenStack storage architecture documentation also explains that Block Storage supports multiple back ends in the form of drivers , and the actual storage implementation depends on the chosen backend technology. In other words, Cinder exposes APIs and management functions for volumes, snapshots, and related features, while the real block storage is delivered by backend platforms such as SAN, distributed storage, or vendor storage arrays.

This matches Huawei Cloud Stack storage concepts as well, where cloud services are typically built on an abstraction layer to unify heterogeneous resources. Therefore, the correct answer is A (TRUE) , because Cinder serves as an abstraction and orchestration layer over underlying block storage systems rather than being the storage technology itself.

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Domain → A top-level container that is globally unique in Keystone

Role → Permission set

Endpoint → External access address of a single service

Group → User set

These matches are consistent with official OpenStack Keystone identity concepts. OpenStack documentation defines a group as a collection of users , so “user set” is the correct description for Group . It also explains that a role is used in Keystone’s RBAC model to represent a set of permissions that can be assigned to users or groups, so Role → Permission set is correct.

For Endpoint , OpenStack service configuration documentation describes endpoints as the network-accessible API addresses used to access a service, which matches external access address of a single service .

For Domain , Keystone identity documentation explains that domains are top-level containers used to organize projects, users, and groups. In practice, a domain is a globally unique administrative boundary in Keystone, which matches the description a top-level container that is globally unique in Keystone .

So the final verified mapping is: Domain → top-level container , Role → permission set , Endpoint → service access address , and Group → user set .

The statement is TRUE. Huawei Cloud Stack separates management responsibilities between operation administrators and VDC administrators. Huawei’s service-management documentation shows that operation administrators work at the platform-wide level and can publish cloud services and associate them with approval processes, which reflects their broader administrative scope. By contrast, VDC administrators work within the boundary of their own VDC and manage service usage and permissions inside that tenant-like scope. This architecture strongly supports the rule that both roles can participate in approval-process customization, but the visibility scope is different.

In practice, this means an approval process created by an operation administrator can be used as a global process across the platform, while a process created by a VDC administrator is limited to the VDC context rather than being exposed to all tenants or all service domains. This aligns with Huawei Cloud Stack’s layered governance model, where global service governance belongs to operation administrators and tenant-level governance belongs to VDC administrators. Therefore, the correct answer is A (TRUE).

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The best verified answer is A, B, and C . Huawei ECS documentation explicitly supports upgrading ECS specifications and adjusting capacity-related resources, which makes D the reasonable and appropriate response when access performance is slow. Increasing compute or network capacity is aligned with normal cloud performance tuning practice.

By contrast, A is not a standard Huawei performance-optimization recommendation. Huawei OBS guidance focuses more on choosing proper regions, APIs, and storage access patterns than on “reducing buckets and storing data centrally” as a latency fix. Centralizing data can even create concentration rather than optimization.

B is also inappropriate as a first-line solution because replacing ECS with BMS changes the compute model but does not directly target the ECS-to-OBS access path. C is similarly inappropriate because CCE is a Kubernetes/container orchestration service, not a direct remedy for object-storage access latency in an ECS+OBS media scenario. Huawei positions CCE for container lifecycle management, not as a general replacement for ECS to solve this kind of OBS delay.

So the inappropriate measures are A, B, and C .

The correct fill-in answer is VPN gateway . In Huawei Cloud Stack networking, an EIP can be associated not only with an individual ECS, but also with shared-access components that serve multiple backend resources. Huawei documentation clearly states that when multiple cloud servers in a subnet need outbound Internet access, they can use a NAT gateway and share an EIP . Huawei’s ELB documentation also reflects the model where a load balancer exposes services externally on behalf of multiple backend ECSs.

In the same family of network services, a VPN gateway is another gateway-type object that uses public-facing connectivity to provide secure access for multiple private-side resources. That is why the exam sentence groups it with load balancer and NAT gateway . The logic is that these service gateways allow multiple ECSs or private resources to make use of a single public-facing IP resource instead of requiring one EIP per server. Huawei’s VPN service documentation also shows VPN as the gateway-based service for secure site-to-cloud communication.

The best verified answer is A, B, and D . Huawei networking documentation shows that Internet access troubleshooting for cloud resources commonly involves checking whether an EIP is bound or whether a NAT gateway is configured , which supports A . Huawei guidance also explicitly refers to selecting or checking an appropriate EIP bandwidth , which supports D as a normal troubleshooting item.

Huawei documentation also shows that network ACL rules are part of VPC access control and can affect connectivity. Because network ACLs are stateless and traffic validation depends on rule direction, checking ACL rules is a reasonable O & M troubleshooting operation. In your option wording, inbound rules are still part of that validation scope, so B is acceptable.

By contrast, checking route configurations on core switches is not the standard first-line troubleshooting action for tenant-side VPC Internet access in Huawei Cloud Stack service O & M. The cloud service boundary is usually diagnosed first through NAT, ACL, and EIP-related configuration. Therefore, the verified answer is A, B, and D .

The correct answer is B. L3 Agent . Official OpenStack Neutron documentation states that routers provide virtual Layer 3 services such as routing and NAT , and that the Networking service uses a layer-3 agent to manage routers. OpenStack also explicitly says that the neutron-l3-agent uses the Linux IP stack and iptables to perform L3 forwarding and NAT . This directly matches the wording of the question.

The other options do not fit. The L2 agent handles local virtual switch configuration and Layer 2 networking behavior, not routing and NAT. The DHCP agent provides DHCP services to tenant networks. “ NAT Agent ” is not the standard Neutron component name used in official OpenStack architecture. OpenStack documentation consistently identifies the L3 agent as the component responsible for router namespace management, forwarding, floating IP behavior, and source NAT functions.

This is also consistent with Huawei Cloud Stack networking architecture topics, where routing and NAT functions are tied to Neutron Layer 3 services. Therefore, the fully verified answer is B. L3 Agent .

In OpenStack, Keystone is the Identity service responsible for authentication and authorization. A core Keystone concept is that permissions are not usually granted directly to a user; instead, users are assigned one or more roles, and those roles are associated with a project, domain, or system scope. OpenStack’s official Keystone documentation states that the Identity service assigns roles to users, and a user can have different roles in different projects. It also explains that default roles such as admin, member, and reader are used to control what actions a user can perform. This means the statement is correct: Keystone users are assigned roles, and those roles determine their permissions.

This is also consistent with Huawei Cloud’s identity and permission model, where permissions are controlled through assigned authorization policies and identities use tokens containing identity and permission information when accessing services. In practical Huawei Cloud Stack and OpenStack-based environments, role-based access control is the standard method for defining what a user is allowed to do. Therefore, the correct answer is TRUE .

The statement is TRUE . In OpenStack Neutron, VXLAN uses a VNI (VXLAN Network Identifier) as the segmentation identifier for overlay networks. Official OpenStack Neutron configuration references describe vni_ranges as the range of VXLAN VNI IDs available for tenant network allocation , which confirms that the VNI is the central identifier used for VXLAN-based Neutron networks.

OpenStack networking documentation also explains that Neutron supports project networks and allows different projects to use overlapping IP spaces while remaining logically separated. In VXLAN/GRE tunnel realizations, OpenStack documents refer to a logical switch identifier being used to differentiate tenant traffic on inter-hypervisor tunnels , which is the practical mechanism for tenant isolation.

So, in Huawei Cloud Stack or any OpenStack-based multi-tenant cloud, the VNI functions as the unique overlay-network identifier that keeps one tenant’s VXLAN traffic separate from another tenant’s traffic. That is why the statement is correct and the verified answer is A (TRUE) .

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The correct answer is C. Glance Store . OpenStack’s official Glance architecture documentation states that all image data operations are performed using the glance_store library, and that this library is responsible for interaction with external storage back ends and/or local file systems . The same documentation explains that glance_store provides a uniform interface to access backend stores, which is exactly the function described in the question.

The other options do not match this role. The REST API exposes image service operations to clients, but it does not directly serve as the backend storage interaction layer. The database stores metadata about images, while the actual image binary data is handled through the storage interface. “ Glance Domain Controller ” is not a standard Glance core component in official OpenStack architecture. In Huawei Cloud Stack and OpenStack-based image management, the distinction between image metadata management and image data storage interaction is important, and the storage-facing part is handled by Glance Store . Therefore, the fully verified answer is C .

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