Practice Free H13-811_V3.5 HCIA-Cloud Service V3.5 Exam Questions Answers With Explanation

All four categories form part of Huawei Cloud's layered security architecture. Network security includes controls and services designed to protect network boundaries and traffic, such as Anti-DDoS, Advanced Anti-DDoS, VPC security controls, firewalls, and network isolation. Huawei Cloud describes network security as a core component of its full-stack cloud defense model.

Application security protects web applications and application-layer traffic. Representative Huawei Cloud services include Web Application Firewall, which detects and blocks HTTP/HTTPS attacks, and application vulnerability/security capabilities.

Computing security covers server and workload protection. Host Security Service protects ECS and other server workloads through vulnerability management, intrusion detection, account-security controls, malware detection, and web tamper protection. Security-management capabilities such as Cloud Bastion Host and centralized security operations provide access management, authentication, authorization, auditing, and operational control.

Finally, data security encompasses encryption, database protection, identity/access control, sensitive-data protection, and lifecycle safeguards. Huawei's security architecture explicitly identifies protection of confidentiality, integrity, availability, durability, and traceability as data-security objectives.

Therefore, A, B, C, and D are all included .

Reference topics: Huawei Cloud Security Architecture; Network Security; Application Security; Compute Security; Security Management; Data Security.

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KooSearch is the Huawei Cloud service specifically designed to provide enterprise-grade search capabilities with an out-of-the-box service model. Huawei Cloud describes KooSearch as a one-stop intelligent enterprise search solution built on Cloud Search Service (CSS). It enables organizations to construct enterprise search, knowledge retrieval, AI search, and document Q & A applications without having to independently build the underlying search infrastructure. The service integrates enterprise knowledge sources, search models, vector search capabilities, and other components required for enterprise information retrieval.

This directly corresponds to the question's description of an out-of-the-box search service designed for enterprise digitalization . Huawei's current KooSearch documentation explicitly emphasizes its ready-to-use enterprise search and RAG capabilities. KooPhone is associated with cloud-phone capabilities, KooMessage concerns enterprise messaging and communication, and KooMap provides map-related services; none is the dedicated enterprise search offering.

Therefore, KooSearch is the only technically valid choice . This aligns with the HCIA-Cloud Service domain covering Huawei Cloud platform and other value-added cloud services.

Reference topics: KooSearch Service Overview; Cloud Search Service; Huawei Cloud PaaS/aPaaS Services.

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Options A, B, and C are consistent with the fundamental characteristics and enabling technologies of cloud computing. Cloud platforms are designed to make resources elastic. Huawei Cloud Auto Scaling, for example, dynamically adds or removes ECS instances and adjusts related resources according to actual workload demand. Dynamic resource scaling is therefore a core practical capability of cloud computing.

On-demand deployment is also fundamental. Huawei Cloud's Cloud Adoption Framework explains that cloud resources can be provisioned, adjusted, and scaled rapidly without the traditional procurement and installation cycle associated with physical infrastructure. This allows organizations to create computing environments when needed and release them when demand decreases.

Virtualization is another important enabling technology. It allows physical computing resources to be abstracted, pooled, isolated, and efficiently shared among multiple workloads. Huawei Cloud specifically identifies virtualization and resource pooling as mechanisms that improve physical-resource utilization.

Option D is incorrect. A defining cloud characteristic is that the provider assumes responsibility for substantial portions of infrastructure construction and maintenance. The exact customer/provider boundary varies between IaaS, PaaS, and SaaS, but customers do not maintain all resources .

Reference topics: Cloud Computing Characteristics; Elasticity; On-Demand Provisioning; Virtualization; Shared Responsibility.

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The statement is TRUE . Logging is a fundamental component of cloud operation, maintenance, troubleshooting, security auditing, and lifecycle management. Huawei Cloud Log Tank Service is designed to collect and centrally process logs from a broad range of environments, including cloud services, ECSs, physical servers, containers, network-related systems, APIs, and other infrastructure components.

Huawei describes LTS as a platform for application O & M, security and compliance, and operations analysis . It provides full-stack log collection, high-speed searching, SQL analysis, visualization, alarm generation, processing, and log transfer. These capabilities allow administrators to track system behavior from deployment through normal operation, troubleshooting, scaling, upgrades, incident response, and eventual retirement.

Huawei's logging architecture also supports network-device information through protocols such as Syslog and SNMP, while ICAgent can collect logs from physical servers and ECSs. Cloud-service logs can be ingested directly from numerous Huawei Cloud services.

Logs therefore provide historical evidence and real-time operational insight throughout the lifecycle of infrastructure and applications. They are not limited to fault diagnosis after an incident; they are an integral O & M data source.

Reference topics: Log Management; LTS; Device O & M; Log Collection; Operational Analysis.

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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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The statement is TRUE. Huawei Cloud OBS provides several resource-based authorization mechanisms, including bucket policies and object policies. Their principal distinction is the scope of resources to which they apply.

Huawei's official OBS Permission Configuration Guide explicitly states that an object policy applies to only one object in a bucket, whereas a bucket policy applies to multiple objects or all objects within the bucket. This enables administrators to select the authorization mechanism that best matches the required granularity.

An object policy is useful when permissions must be configured specifically for an individual object, such as granting another principal read or write permissions to one particular resource without broadening access to the rest of the bucket.

A bucket policy supports broader authorization scenarios. Its policy statements can define principals, actions, resources, effects, and conditions to grant or restrict access to selected objects, prefixes, or the entire bucket. Typical uses include allowing another Huawei Cloud account to access specified OBS resources or granting IAM identities access to defined bucket content.

The question therefore correctly distinguishes object-level policy scope from bucket-level multi-object policy scope.

Reference topics: OBS Permission Management; Object Policies; Bucket Policies; Resource-Based Authorization.

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Scalable File Service (SFS) is the precise Huawei Cloud service for this workload. The wording in the question closely follows Huawei's official media processing application scenario for SFS. Huawei specifically lists streaming media, archiving, editing, transcoding, content distribution, and video on demand as representative media-processing workloads.

The decisive requirement is that multiple hosts must access the same media files concurrently. SFS provides shared file storage that can be mounted by multiple ECSs or other supported compute resources through standard file protocols. Applications then interact with the storage through normal directories and file-system semantics. This eliminates the need to redesign media-processing applications around object-storage APIs.

OBS is highly scalable and well suited to object storage, content distribution, archive, and VOD data, but applications access OBS through HTTP/HTTPS, APIs, or SDKs rather than through a conventional shared filesystem. EVS provides block storage and generally must be attached to a server; ordinary EVS is not the direct multi-host shared file-system solution. Huawei's storage-selection guidance identifies SFS specifically for media processing and file sharing.

Therefore, B. SFS best satisfies the shared-media workflow.

Reference topics: Scalable File Service; Media Processing; Shared File Storage; Storage Service Selection.

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The major CTS functions represented by the options are trace recording, trace query, and trace transfer , making A, B, and D correct.

Trace recording captures operations performed through the Huawei Cloud management console, through APIs, and operations initiated by supported cloud services. These records provide an audit trail containing information such as the operator, operation time, resource, operation result, and associated request data.

Trace query allows administrators and auditors to search recent operational records on the CTS console using criteria such as trace source, resource type, operator, trace status, and operation type. This is essential for security auditing, compliance investigation, and troubleshooting.

Trace transfer provides longer-term retention and centralized analysis. CTS can package operation records into trace files and transfer them to supported destinations such as OBS or LTS for preservation and subsequent processing.

Option C, OS monitoring , does not belong to CTS. Operating-system performance monitoring is primarily a Cloud Eye/server-monitoring capability rather than an audit-trace function.

Huawei's official CTS documentation expressly identifies recording, querying, and transfer among its core service functions.

Reference topics: Cloud Trace Service; Trace Recording; Trace Query; Trace Transfer; Cloud Auditing.

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For the HCIA-Cloud Service V3.5 curriculum version , statements A, B, and C are correct . An ECS must be associated with a security group so that inbound and outbound network access can be controlled. If an account has no custom group, Huawei Cloud provides a default security group, and users can either use that default group or create and select another security group that matches the workload's security requirements.

The V3.5-era Huawei Cloud VPC documentation distinguishes security groups from network ACLs by stating that security groups provide allow rules , whereas network ACLs provide both allow and deny rules. This distinction is important because it appears repeatedly in the HCIA V3.5 networking curriculum.

Statement D is false. Huawei Cloud specifically permits administrators to modify existing rules or add rules to the default security group . The default group itself cannot normally be deleted, but that restriction does not make its inbound or outbound rules immutable. Huawei's default-security-group documentation explicitly distinguishes group deletion restrictions from rule modification permissions.

Reference topics: VPC Security Groups; ECS Network Configuration; Default Security Group; Security Group Rules.

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Statement C is incorrect because container images do not require a private registry. Huawei Cloud container services can consume images from multiple sources, including Huawei Cloud SoftWare Repository for Container (SWR), public repositories, shared repositories, and supported third-party image repositories. Huawei Cloud CCI documentation explicitly states that containers can pull both SWR images and third-party images .

A container image is a standardized, executable package containing the files and configuration required for a containerized application. Huawei describes it as containing the application and required supporting components such as environments, libraries, configuration files, and file systems. This supports option A.

Option B is consistent with the container-image concept because images can contain a base operating-system environment or filesystem together with application dependencies and configuration required by the application.

Option D is also valid. An image acts as an immutable deployment template: once constructed, the same image can be instantiated repeatedly as containers, enabling applications to run with a consistent packaged environment rather than requiring the software stack to be manually reconfigured for every deployment.

A private registry is useful for controlling proprietary enterprise images, but it is an architectural choice—not a mandatory requirement. Therefore, C is the incorrect statement.

Reference topics: Container Images; SWR; Container Registries; CCI Image Sources; Containerized Application Deployment.

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The correct mechanisms are security groups and network ACLs . A security group contains inbound and outbound access-control rules governing traffic to and from ECS instances associated with the group. Inbound rules regulate traffic entering an ECS, while outbound rules regulate traffic leaving it. Security groups therefore provide the instance-oriented access-control layer within a Huawei Cloud VPC.

Network ACLs operate at the subnet level . A network ACL is associated with one or more subnets and controls traffic entering and leaving those subnets. In the HCIA V3.5 networking architecture, network ACLs complement security groups and provide an additional layer of network protection. Huawei's VPC documentation explicitly presents security groups and network ACLs as complementary controls for comprehensive access management.

IPsec VPN does not serve this role. Its purpose is to establish encrypted network connectivity—for example, between VPCs or between Huawei Cloud and an external network. Fingerprint authentication is likewise not a VPC packet-filtering mechanism.

Therefore, only A and D directly provide inbound/outbound traffic-control functionality for ECS workloads.

Reference topics: VPC Access Control; Security Groups; Network ACLs; ECS Network Security.

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Option A specifically describes Huawei Cloud's dynamic resource adjustment mode . In Huawei Auto Scaling, dynamic scaling uses an alarm policy that evaluates real-time monitoring metrics such as CPU utilization. When the configured alarm condition is reached, AS automatically performs a scaling action to increase or decrease resources so that capacity follows unpredictable workload changes.

Option B is incorrect because triggering an AS policy does not automatically redefine the configured maximum number of instances . The maximum is an upper boundary for the AS group. A scaling policy changes the expected number of instances, adds or removes instances, or sets the instance count to a configured value while remaining within the minimum and maximum boundaries.

Option C correctly describes planned scaling , but the question specifically asks about dynamic resource scaling. Huawei classifies scheduled and periodic policies as planned adjustment mechanisms suitable for workloads that change predictably according to a schedule.

Option D is incorrect because alarm-triggered scaling is subject to a cooldown period . During that period, Huawei Cloud rejects additional scaling requests generated by alarm policies to prevent repeated unnecessary scaling operations.

Therefore, for dynamic resource scaling, A is the correct answer .

Reference topics: Auto Scaling; Dynamic Resource Adjustment; Alarm Policies; Planned Scaling; Cooldown Period.

1 ? B

2 ? C

3 ? A

The mappings follow Huawei Cloud's LTS architecture exactly. A log group is the fundamental management unit used by LTS to organize logs. Huawei defines a log group as the basic unit for managing logs; it can contain multiple log streams and is primarily an organizational container rather than the location from which individual log records are read or written.

A log stream is the basic unit for reading and writing log data. Different categories of logs can be stored in separate streams within the same group, which improves log classification, searching, analysis, and O & M management.

ICAgent is the collection component. Huawei explicitly describes ICAgent as a log collection tool for LTS that runs on hosts from which logs need to be collected, including ECSs and physical servers. LTS distributes collection configurations to ICAgent, and ICAgent detects matching log files and reports the records to the specified log stream.

Therefore, the correct relationship is Log stream ? read/write; ICAgent ? collection; Log group ? management .

Reference topics: Log Tank Service; Log Groups; Log Streams; ICAgent; Host Log Collection.

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