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| Section | Weight | Objectives |
|---|---|---|
| Cloud Native Application Architecture Design | 30% | - Serverless architecture design and application scenarios - Container and orchestration technology - Microservice architecture design and practice
|
| HUAWEI CLOUD Innovations and Solutions | 5% | - Emerging technologies integration (AI, Big Data, IoT) - Industry solutions and best practices - Huawei Cloud ecosystem and tools |
| HUAWEI CLOUD O&M Solution | 10% | - Automated operation and maintenance - Log management and analysis - Cloud monitoring and alerting system - Fault diagnosis and recovery mechanism |
| Enterprise Application Architectures and Cloud Technologies | 5% | - Cloud service models and deployment models - Core characteristics and value of cloud computing - Evolution of enterprise application architectures |
| Cloud-based Architecture Design of Conventional Applications | 50% | - Security architecture design on cloud
|
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NEW QUESTION # 22
Elastic Load Balance (ELB) provides dedicated and shared load balancers. Which of the following statements about shared load balancers is false?
Select all that apply.
Answer: A,C
Explanation:
"Transfer Client IP Address is enabled for Layer 7 listeners by default. You do not need to manually enable it."
[Supporting description] Enabling Transfer Client IP Address for Layer 4 listeners preserves the client source IP rather than translating it to the 100.125.0.0/16 range.
Huawei source: Training PDF p. 166
Technical Deep Dive
The question asks which statements about shared Elastic Load Balance are false. Option B is false because client-IP transfer behavior is not enabled in the same way by default for both Layer 4 and Layer 7 listeners.
The Huawei V3.5 slide specifically states that Transfer Client IP Address is enabled by default for Layer 7 listeners; Layer 4 source-address preservation depends on the relevant listener setting.
Option D is also false. It reverses the behavior of enabling Transfer Client IP Address for a supported Layer 4 shared listener. When preservation is enabled, the backend receives the original client source address instead of a translated source address from the 100.125.0.0/16 range. Option A describes the shared ELB source- translation behavior when client-IP preservation is not applied and is generally true in the course context.
Option C is true because backend security groups and network ACLs must permit load balancer requests and health-check traffic.
Client identity matters for auditing, geographic restrictions, rate limiting and incident analysis. For Layer 7 HTTP and HTTPS forwarding, applications may also use an X-Forwarded-For header to identify the originating client, but this is not the same as packet-level source-IP preservation. Engineers must configure trust boundaries around such headers so that arbitrary client-supplied values are not accepted as authoritative.
The curriculum explicitly supports B and D as the false claims.
NEW QUESTION # 23
What does Cloud Eye alerting for monitoring metrics allow you to do?
Select all that apply.
Answer: A,B,C
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
Data Replication Service (DRS) is an easy-to-use, stable, and efficient cloud service for online database migration and real-time database synchronization. Which of the following statements about DRS is incorrect?
Answer: B
Explanation:
"Data Replication Service (DRS) is a stable, efficient, and easy-to-use cloud service for online database migration and real-time database synchronization."
"Smooth migration: Databases can be migrated with minimal downtime, often with no service interruptions at all."
"Excellent performance: Parallel processing accelerates the migration process."
"High flexibility: You can perform database management operations on the source database during the migration." Huawei source: Training PDF pp. 323-324 Technical Deep Dive Huawei Cloud Data Replication Service provides online database migration, synchronization, subscription, backup migration and disaster-recovery data movement. Option A is correct: many supported databases can be migrated with minimal interruption, and in some cases the source continues serving clients during the initial and incremental replication phases. Option B is correct: supported management operations and normal source database access may remain available while migration proceeds, subject to engine-specific restrictions.
Option D is also correct. DRS can use parallel processing to accelerate data transfer and migration. Option C is false because it incorrectly extends DRS into general-purpose host migration. Moving operating-system files, virtual machine settings, arbitrary host data and application binaries is not DRS's central function.
Huawei Server Migration Service (SMS) and other compute migration mechanisms address server workload transfer, while DRS addresses supported database objects and data.
A typical database cutover includes source/destination connectivity verification, account and privilege preparation, compatibility checks, initial loading, incremental replication, consistency assessment and a planned application switch. Even when migration is described as online, the final cutover may require temporarily stopping writes and changing application database endpoints. An architect must separately manage application servers, credentials, DNS, network security and rollback. The official DRS course explicitly lists smooth migration, high flexibility and parallel processing, but does not claim general host migration. Therefore C is the uniquely incorrect statement.
NEW QUESTION # 25
After a user attaches a newly created data disk to an Elastic Cloud Server (ECS), the Elastic Volume Service (EVS) disk must be initialized-including creating partitions and file systems and mounting the partitions- before it can be used. Which of the following statements about disk initialization isfalse?
Answer: A
Explanation:
"The newly attached block storage device can be used only after it is formatted."
[Lab Guide, storage exercise] The lab shows formatting with mkfs -t ext4 /dev/vdb, mounting the filesystem, and setting /etc/fstab for automatic mounting.
[The partition-table distinction is also supported by official EVS documentation. ] Huawei source: Lab Guide PDF p. 125; Training PDF EVS section; official EVS docs Technical Deep Dive A newly attached EVS block device generally needs initialization before it can be used as a new filesystem.
Option A is true: MBR and GPT partition styles can be used for smaller disks, while GPT is needed for capacities beyond MBR's practical approximately two-TiB limit. Option B is true: on Linux, an initialized disk can be mounted using the mount command, and persistent mounting is typically configured through /etc
/fstab using a stable filesystem UUID.
Option C is false. Windows supports both MBR and GPT partition tables. NTFS, FAT and exFAT are filesystem formats, not replacements for partition-table standards. Treating a filesystem type as a partition style is a fundamental storage-administration error. Option D is true: Linux tools such as fdisk and parted can create partitions, and commands such as mkfs.ext4 create filesystems on the appropriate block device or partition.
The Huawei V3.5 Lab Guide shows formatting and mounting a newly attached disk, including configuring persistent mounting. A safe production workflow is to identify the disk with lsblk, verify it contains no required data, create an appropriate GPT partition if needed, format it and mount it to a chosen directory.
Formatting or changing a partition table destroys existing data, so the target device must be checked carefully.
For Windows, administrators use Disk Management or appropriate PowerShell commands to initialize a disk with MBR or GPT and format a volume using NTFS or another supported filesystem. Answer C is unambiguously incorrect.
Technical commands / calculations from the reviewed batch
# Destructive: use ONLY for a confirmed new empty disk.
lsblk
sudo parted /dev/vdb --script mklabel gpt
sudo parted /dev/vdb --script mkpart primary 1MiB 100%
sudo mkfs.ext4 /dev/vdb1
sudo mkdir -p /data
sudo mount /dev/vdb1 /data
df -Th
NEW QUESTION # 26
In Cloud Container Engine (CCE), when a backend pod is rebuilt, it receives a newly bound IP address, but the frontend pod is not aware of the change. If the backend pod is accessed through a Service, the frontend pod does not need to know about this change.
Answer: B
Explanation:
"Kubernetes Services are used to solve the pod access problems. You can add a Service (with a fixed IP address) for a frontend pod to access the backend pods. The Service forwards the traffic to the pods. In this way, the frontend pod does not need to detect the changes of the backend pods. The Service can also perform load balancing for these pods." Huawei source: Training PDF p. 428 Technical Deep Dive Kubernetes pods are ephemeral. When a Deployment or another controller replaces a backend pod, the new pod may receive a different IP address. Directly connecting frontend applications to individual pod addresses would make deployments and recovery fragile. Kubernetes Services solve this by exposing a stable logical endpoint while maintaining an updated set of backend endpoints. The question is therefore TRUE, option A.
A frontend pod can call a Service by its cluster DNS name, for example backend-service.default.svc.cluster.
local. The Service identifies backend pods through label selectors, and Kubernetes maintains EndpointSlice data as pods appear, disappear or become unready. The frontend continues using the same Service name even though the backend membership changes. This mechanism also allows traffic distribution among eligible replicas.
Huawei's V3.5 training explicitly describes the scenario in which a backend pod is rebuilt and receives a new IP without requiring the frontend pod to detect the change. Engineers can validate the state with kubectl get pods -o wide, kubectl get services and kubectl get endpointslices. Service stability does not guarantee transaction-level continuity: in-flight connections to a failed pod may still be interrupted, and retry or idempotency behavior may be required. Similarly, application readiness probes must correctly identify when replacement pods can receive traffic. The core architectural advantage is decoupling service identity from transient pod addresses, which is essential for scaling and rolling updates.
Technical commands / calculations from the reviewed batch
kubectl get pods -o wide
kubectl get services
kubectl get endpointslices
NEW QUESTION # 27
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