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| Section | Objectives |
|---|---|
| Compute and Storage Services | - Elastic Cloud Server (ECS) and container services
|
| Network and Security Design | - Security and identity management
|
| Solution Design and Migration | - Cloud migration strategies
|
| Operations and Monitoring | - Cloud monitoring and O&M
|
| Database and Middleware Services | - Cloud database services
|
| Cloud Architecture Design Principles | - Huawei Cloud architecture overview
|
>> Valid H13-821_V3.5 Test Objectives <<
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NEW QUESTION # 20
ServiceStage is an all-in-one enterprise application management and O & M platform. Which of the following statements about ServiceStage are correct?
Select all that apply.
Answer: A,B,C,D
NEW QUESTION # 21
Bare Metal Server (BMS) supports a broad range of workloads. Which of the following is not one of those workloads?
Answer: C
Explanation:
"Bare Metal Server (BMS) combines the scalability of ECSs with the high performance of physical servers. It provides dedicated servers on the cloud, delivering the performance and security required by core databases, mission-critical applications, HPC, and Big Data. You can apply for and use a BMS on demand."
[The application scenarios slide identifies core databases, container runtime, big data analytics, and AI. ] Huawei source: Training PDF pp. 77, 82 Technical Deep Dive Huawei Bare Metal Server (BMS) provides dedicated physical compute resources without a conventional tenant-visible hypervisor layer for the workload. Option A is among the principal application scenarios: big data storage and analytics can benefit from predictable resources, high-throughput networking and storage
/compute architectures appropriate for large datasets. Option B is also supported: HPC, supercomputing, genome or DNA sequencing and AI can require powerful CPUs, GPU or NPU acceleration and low-latency communication. Option C is supported because mission-critical government, financial and enterprise databases may demand isolation and guaranteed physical server performance.
Option D is not one of the core BMS workload scenarios named by Huawei's V3.5 training. Short-lived application development, rapidly changing portal capacity and frequent e-commerce promotional scaling are typically better served by Elastic Cloud Servers with Auto Scaling and ELB. Although BMS resources can be provisioned on demand, they do not inherently offer the same fine-grained elasticity and speed as increasing or decreasing virtualized ECS instances.
BMS uses dedicated hardware and can support high-performance network and storage access, including the SDI hardware described by the curriculum. x86 and Kunpeng-based BMS families target various workloads, and suitable systems can integrate GPUs or other accelerators. Hardware isolation and stable performance help large database and compute-intensive systems, but dedicated capacity can be costly for intermittent demand. Architects should evaluate licensing, provisioning time, network topology, storage attachment, high availability and expected utilization. Therefore D is the intended 'not one of those workloads' choice, with the nuance that BMS can host websites but is not the default elastic web tier.
NEW QUESTION # 22
DNAT rules allow servers in a VPC to provide services that are accessible from the Internet. DNAT lets users bind an EIP to a public NAT gateway and supports both IP address mapping and port mapping. After requests are received on a particular port using a particular protocol, the public NAT gateway can use port mapping to forward them to a particular port on the target server. Users can also configure an EIP for a server. The public NAT gateway can then use IP address mapping to forward all requests addressed to that EIP to a particular server. This enables multiple servers to share the same EIP and bandwidth, reducing bandwidth costs.
Answer: A
Explanation:
"DNAT enables multiple servers within an AZ or across multiple AZs in a VPC to share EIPs to provide services accessible from the Internet."
[Supporting description] Public NAT gateways support port mapping and IP address mapping for incoming connections to private servers.
Huawei source: Training PDF p. 171
Technical Deep Dive
Destination Network Address Translation (DNAT) publishes privately addressed servers to the Internet through a public NAT gateway. Huawei supports port mapping, which forwards a particular public EIP and protocol/port combination to a private server address and destination port, and IP address or all-port mapping, which directs a broader range of traffic for an EIP to one designated server.
For example, a connection to a gateway EIP on TCP port 8080 can be translated to an internal server on TCP port 80. Multiple internal servers may share the NAT gateway's public EIP using non-conflicting port mappings, which reduces the need for a separate public address for every server. The statement is therefore TRUE in the intended Huawei V3.5 description.
A significant terminology point is that the EIP used for NAT is associated with the NAT gateway, not simultaneously directly bound to the backend ECS. All-port mapping also has exclusivity constraints: one public IP's full port range cannot be mapped indiscriminately to multiple separate destination servers at the same time. The question's phrase about 'configuring an EIP for a server' should be interpreted as creating a gateway DNAT rule targeting that server. Architects must consider port conflicts, security group rules, gateway availability, external-client access requirements and public bandwidth billing. DNAT is for externally initiated inbound services, while SNAT serves different outbound connectivity requirements.
NEW QUESTION # 23
What does Cloud Eye alerting for monitoring metrics allow you to do?
Select all that apply.
Answer: B,C,D
Explanation:
"Users can create alarm rules for key metrics of cloud services. When the conditions in the alarm rule are met, Cloud Eye reports the alarms using emails, SMS, or HTTP/HTTPS requests, enabling users to quickly respond to resource changes."
[The slide lists] flexible policies, varied notifications through HTTP/HTTPS/FunctionGraph/SMS/email, Auto Scaling integration, and default or custom alarm templates.
Huawei source: Training PDF p. 591; official Cloud Eye documentation
Technical Deep Dive
Cloud Eye alarm management allows administrators to define resource- and metric-specific thresholds, triggering rules, notification routes and operational responses. Option A is true because alarm policies can be tailored to individual monitored objects, metrics and events. Option B is true because Huawei supplies standard and customizable templates that can be applied across resources in batches, reducing repetitive configuration and improving policy consistency.
Option D is true. The Huawei V3.5 alarm slide lists HTTP/HTTPS, SMS, email, FunctionGraph and Auto Scaling integration, while related official documentation confirms voice notification channels where supported. A Cloud Eye threshold can notify an operator, invoke an automated function or participate in a scaling policy. For instance, sustained CPU utilization above an agreed threshold can initiate capacity scaling while the operations team receives an alert.
Option C is false because Huawei supports monitoring integration with external observability systems. Cloud Eye metrics can be exposed through suitable exporter and API mechanisms to Prometheus-compatible environments, and those metrics can be visualized in Grafana as part of a broader monitoring architecture.
The claim that such interconnection is categorically unsupported is therefore wrong. Operationally, alarm thresholds must account for duration, evaluation periods, retry behavior, resource scale and alert fatigue. Too- sensitive alerts can generate noise, while overly broad thresholds can miss failures. Automatic scaling requires sensible minimum and maximum capacities, cooldown settings and health checks. A, B and D are the supported capabilities; C is the inaccurate denial of integration.
NEW QUESTION # 24
Which of the following network access modes does Cloud Container Engine (CCE) provide for workloads?
Select all that apply.
Answer: A,D
Explanation:
"Workload network access falls into the following main scenarios: accessing a workload from within the cluster, accessing a workload from outside the cluster through either a private or public network, and accessing an external network from a workload, including both private and public network destinations."
"When you access a workload through a public network, assign an EIP to the node or LoadBalancer Service."
"To access workloads across different VPCs, you need a peering connection or other means." Huawei source: Training PDF p. 455 Technical Deep Dive Huawei Cloud CCE supports communication among pods within a cluster, external access through suitable Services or ingress, and private communication with external networks when routing is configured. Option C is correct because pods normally communicate through the container network, subject to network policies and other restrictions. Option D describes a supported cross-VPC use case, but it omits important prerequisites:
VPC peering or another private routing mechanism is required in addition to allowing appropriate ports through security groups and network ACLs.
Option A is literally inaccurate. Public access to a CCE workload is supported, but Huawei's course instructs users to associate an EIP with the node, load balancer or an eligible pod interface, depending on the networking model-not directly with the cluster object. Option B is also incorrect because simply binding a Global EIP to the cluster is not the documented method for inter-region pod connectivity. Cross-region access requires supported network connections and routes, and is not guaranteed merely by public address allocation.
The earlier form of this item directed 'Choose three', strongly suggesting A, C and D were intended. Under the revised 'Select all that apply' instruction, the technically defensible choices are C and D as stated. If A were rewritten to say 'bind an EIP to a node or LoadBalancer Service', A would become correct. This is a substantial question-quality issue; answer keys must not silently rewrite an option. Engineers troubleshooting cross-VPC service access should inspect container CIDRs, routes, peering connections, backend security- group permissions and workload policies.
NEW QUESTION # 25
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