ExamPassdump의 Huawei인증 H13-821_V3.5덤프는 최근 유행인 PDF버전과 소프트웨어버전 두가지 버전으로 제공됩니다.PDF버전을 먼저 공부하고 소프트웨어번으로 PDF버전의 내용을 얼마나 기억하였는지 테스트할수 있습니다. 두 버전을 모두 구입하시면 시험에서 고득점으로 패스가능합니다.
| Section | Objectives |
|---|---|
| Cloud Architecture Design Principles | - Cloud computing models and deployment architectures
|
| Database and Middleware Services | - Cloud database services
|
| Compute and Storage Services | - Storage solutions
|
| Operations and Monitoring | - Cloud monitoring and O&M
|
| Solution Design and Migration | - Solution architecture design
|
| Network and Security Design | - Cloud network architecture
|
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질문 # 11
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?
Select all that apply.
정답：A,B
설명：
"Vertical scaling is to replace existing IT resources with one of greater or lower capacity."
[Course distinction] Horizontal scaling adds service nodes; vertical scaling changes the capacity of an existing resource.
Huawei source: Training PDF pp. 22-23
Technical Deep Dive
Vertical scaling, also called scaling up or scaling down, changes the capacity of an existing compute or database instance rather than increasing the number of instances. The distinction is architectural: vertical scaling changes resources assigned to a node; horizontal scaling adds or removes separate nodes.
Option B is correct because reducing RDS specifications from eight vCPUs and 32 GiB to four vCPUs and
16 GiB is vertical scale-down. Although capacity decreases, it remains vertical scaling. Option D is correct because increasing an ECS from two vCPUs and four GiB to four vCPUs and eight GiB is vertical scale-up.
Option A is horizontal database scaling: creating read replicas increases the number of database nodes available to serve read requests. Option C is likewise horizontal: the ECS population grows from two to five instances.
On Huawei Cloud, ECS flavor changes and supported RDS instance-class modifications can implement vertical scaling. Some changes may require restarting the instance or using a maintenance window. Vertical scaling is limited by available hardware and maximum instance flavors. Horizontal scaling can increase aggregate capacity and resilience, but requires load balancing, session handling, data distribution and consistent application behavior. Neither design automatically solves all availability issues; the choice must reflect the workload bottleneck and recovery objectives.
질문 # 12
Cloud Operations Center (COC) is a secure and efficient platform that provides one-stop intelligent O & M.
COC supports deterministic operations on Huawei Cloud through features including change management and batch O & M. It makes cloud-based O & M more mature and efficient while preserving security and compliance.
정답：B
설명：
"Cloud Operations Center (COC) is a secure, efficient platform capable of one-stop intelligent O & M. COC supports deterministic operations on Huawei Cloud with features such as change management and batch O &
M. It makes cloud-based O & M more mature and efficient, while maintaining security and compliance." Huawei source: Training PDF p. 624 Technical Deep Dive Cloud Operations Center (COC) is Huawei's centralized platform for secure, efficient and standardized operational management. The official V3.5 course describes one-stop intelligent O & M, change management and batch operations, so the statement is TRUE, option A. Traditional cloud operations can become fragmented when administrators must check many separate interfaces and manually repeat the same commands across dozens of resources. COC helps standardize those workflows and improve visibility.
Change management controls the lifecycle of operational changes, including planning, authorization, execution and traceability. Batch O & M allows supported tasks to be applied to multiple resources under an appropriate operation policy. Deterministic operations emphasize well-defined, repeatable procedures with predictable inputs, execution stages and observable outcomes. The intent is to reduce errors and the amount of ad hoc manual intervention.
For example, a scheduled change may require running a validated maintenance procedure across a group of ECS instances. COC can coordinate execution and provide an operational record, whereas separate monitoring platforms supply health information. Huawei integrates or complements Cloud Eye, AOM and LTS for metrics, application telemetry and logs. Security and compliance still require good authorization boundaries, approval policies, audit retention and safe operational scripts; the platform does not automatically make a risky script safe. The course explicitly characterizes COC as improving O & M maturity, efficiency, security and compliance. Both sentences in the exam statement align with those descriptions, supporting A without material ambiguity.
질문 # 13
After read replicas are created, they can serve read-intensive workloads for the primary instance and reduce its load. Which of the following statements about high-availability (HA) read replicas are true?
Select all that apply.
정답：A,B,D
설명：
"Read replicas include single-node read replicas and HA read replicas."
[HA Read Replica slide] If the physical server hosting an HA read replica fails, the standby read replica takes over. If a single-node read replica fails, the database proxy routes requests to other read replicas or the primary instance.
Huawei source: Training PDF p. 287
Technical Deep Dive
Read replicas offload read-heavy database traffic from the primary instance, improving read scalability while retaining a primary location for writes. Huawei V3.5 distinguishes single-node read replicas from high- availability read replicas; B is correct. HA read replicas include active and standby replica nodes so a standby can take over after the physical server hosting the active read node fails; C is correct.
Option D is correct because the database proxy can redirect traffic away from an unavailable single-node read replica to other healthy replicas or, depending on the configured policy, the primary instance. This is an important service-continuity mechanism for applications that should not manage every read replica address themselves.
Option A is false. The course does not impose an unconditional requirement that read-replica instance specifications be identical to those of the primary. Database feature compatibility, engine constraints and settings such as case sensitivity matter, but equality of every vCPU and memory dimension is not a universal availability rule. An architect must also account for asynchronous replication lag. A user who writes a record and immediately reads from a replica may not see the latest committed change; strict read-after-write workloads should use suitable primary routing or consistency controls. Monitor delay, read/write splitting policies, proxy state, health checks and read capacity. Any answer key listing only B and C omits Huawei's explicit support for D.
질문 # 14
Cloud Container Engine (CCE) provides multiple Service network access modes. Match each description with its corresponding access mode.
정답：
설명：
Explanation:
"ClusterIP: This is the default type. A virtual IP address that can be accessed only within the cluster is allocated from the Service CIDR block of the cluster."
"NodePort: The Service is exposed on each node's IP address at a static port."
"LoadBalancer: This type of Service adds an external load balancer on the top of a NodePort Service."
"DNAT: This type of Service translates IP addresses for cluster nodes and enables multiple nodes to share an EIP." Huawei source: Training PDF pp. 458-459 Technical Deep Dive This matching exercise tests four Huawei CCE network access modes. The first description is ClusterIP, option A: Kubernetes creates an internal virtual address from the Service CIDR range, normally usable only inside the cluster. The second is NodePort, option B: the Service is exposed on a static port of each node, allowing the relevant node address and port to reach the workload. NodePort traffic normally reaches a corresponding ClusterIP abstraction.
The third description is LoadBalancer, option C. An external load-balancing resource accepts traffic and distributes it to eligible pods; Huawei Cloud ELB supports Layer 4 and, through applicable listener implementations, Layer 7 traffic distribution. The fourth description is Huawei CCE's DNAT mode, option D.
It uses network address translation to allow multiple cluster nodes to share an EIP and avoids tying the externally exposed service to a single node's directly bound EIP.
A Kubernetes Service provides a stable access mechanism even though backend pods may be scheduled, replaced or rescaled. Engineers can inspect configured Services with kubectl get services, check policy and endpoints with kubectl describe service, and verify corresponding EndpointSlices. ClusterIP, NodePort and LoadBalancer are standard Kubernetes Service types. Huawei's DNAT access mode is specific to the CCE service integration and should not be represented as an upstream Kubernetes Service.spec.type value. The original screenshot is retained with empty match boxes; the verified order is A, B, C, D.
Technical commands / calculations from the reviewed batch
kubectl get services
kubectl describe service my-service
kubectl get endpointslices
Description
Correct selection
1
A - ClusterIP
2
B - NodePort
3
C - LoadBalancer
4
D - DNAT
질문 # 15
ServiceStage is an enterprise one-stop application management and O & M platform. Which of the following statements about ServiceStage is incorrect?
정답：B
설명：
"ServiceStage is an application management and O & M platform that lets you deploy, roll out, monitor, and maintain applications all in one place."
"ServiceStage supports full lifecycle management of microservice applications. It supports runtime environments (Java, Go, Node.js, Docker, and Tomcat) and manages microservice applications (Apache ServiceComb Java chassis, Spring Cloud, Dubbo, and Service Mesh) without intrusion."
"CodeArts is a one-stop platform that provides out-of-the-box cloud services for requirement delivery, code commit, check, build, verification, deployment, and release throughout the entire software lifecycle." Huawei source: Training PDF pp. 520, 525, 548 Technical Deep Dive Huawei ServiceStage primarily hosts, deploys, monitors and maintains applications while supporting microservice governance. Option A accurately describes its support for multiple application languages and runtimes. Option C is also true: the platform offers application hosting, monitoring, alarms, logs and operational workflows for development, test and O & M teams.
Option D is the intended incorrect answer. The comprehensive pipeline for requirements, source-code commits, code checking, compilation, build verification, deployment and release corresponds to Huawei CodeArts. ServiceStage can receive application packages, integrate with delivery pipelines and perform deployments, but it is not identical to the full CodeArts software-development toolchain. In a typical architecture, CodeArts manages source control and CI/CD, ServiceStage manages application deployment and lifecycle, while CCE supplies container scheduling and infrastructure integration.
There is also an editing defect in B. The source combines 'Dubbo' and 'Service Mesh' into the expression
'Dubbo mesh'. Huawei V3.5 actually lists Apache ServiceComb Java chassis, Spring Cloud, Dubbo and Service Mesh as separate supported technologies. If interpreted literally, B is also inaccurate, undermining the instruction to choose one incorrect option. Correct B to say 'Dubbo and Service Mesh' and D becomes uniquely wrong. ServiceStage's microservice support includes application registration, discovery, configuration and governance, often through an integrated microservice engine. The right conceptual distinction is application lifecycle management versus the entire source-to-release software-development pipeline.
질문 # 16
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