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| Section | Objectives |
|---|---|
| Topic 1: Huawei Cloud O&M Solution | - Monitoring, logging, and operational best practices - O&M strategies and Huawei Cloud operations tools |
| Topic 2: Cloud-based Architecture Design of Conventional Applications | - Database service planning and migration - Compute service planning and Elastic Cloud Server (ECS) - Network design and Virtual Private Cloud (VPC) - Storage and Object Storage Service (OBS) - Cloud security service planning and design |
| Topic 3: Huawei Cloud Innovations and Solutions | - Emerging architecture solution practices - Innovative services overview (EI, IoT, data solutions) |
| Topic 4: Enterprise Application Architectures and Cloud Technologies | - Cloud technology concepts and Huawei Cloud overview - Enterprise application architectures fundamentals |
| Topic 5: Cloud Native Application Architecture Design | - Huawei cloud native services and solutions - Container and serverless design patterns - Cloud native technologies and microservices design |
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NEW QUESTION # 19
Scalable File Service (SFS) supports general-purpose file systems that provide users with scalable, high- performance file storage. Which of the following statements regarding general-purpose file systems are true?
Select all that apply.
Answer: B,C,D
Explanation:
"SFS provides scalable, high-performance NAS file storage and supports shared file access from multiple ECSs, BMSs, and containers running on CCE and CCI."
"General-purpose file systems require a VPC endpoint for mounting, whereas SFS Turbo does not."
[Course note] SFS supports NFS client mounting on Linux ECSs.
Huawei source: Training PDF pp. 222-226; official SFS documentation
Technical Deep Dive
Huawei SFS delivers managed shared file storage that ECSs and other supported compute resources can mount over network file protocols. General-purpose SFS differs from SFS Turbo in several provisioning and connectivity details. Option A is true within the course's model: general-purpose file systems are not assigned a default fixed maximum capacity, although service limits and user-configured quotas may still apply. Option C is true because the course states that general-purpose file systems require a VPC endpoint for mounting, whereas SFS Turbo follows another network-access model.
Option D is true. Linux instances require compatible NFS client software to mount NFS-based filesystems.
On a RHEL-compatible host, for example, nfs-utils provides utilities needed for NFS mounting; the exact package command depends on the operating system. Option B is false because although a file system should be unmounted before deletion and the Huawei deletion requirements must be satisfied, restarting the entire OS is not a prerequisite.
SFS is suitable for shared application content, web attachments and workloads that need a filesystem interface from multiple ECSs. A common troubleshooting sequence checks the NFS client packages, VPC endpoint or mount connectivity, DNS, route tables, security groups and NFS protocol version. For deletion, remove files and ensure there are no active mounts or required dependencies. The correct true statements are A, C and D.
The question should not imply every SFS file system is unlimited in every operational sense.
Technical commands / calculations from the reviewed batch
sudo dnf install -y nfs-utils
sudo mkdir -p /mnt/shared
sudo mount -t nfs -o vers=3 < NFS_SERVER > :/ /mnt/shared
df -Th
NEW QUESTION # 20
Which of the following is not a major factor that drives enterprises to migrate to the cloud?
Answer: D
Explanation:
"Overall, the key factors driving enterprise cloud migration fall into three main categories: technological innovation, business requirements, and government incentives." Huawei source: Training PDF p. 6 Technical Deep Dive Huawei explicitly classifies the principal cloud migration drivers into technological innovation, business requirements and government incentives. Option B is therefore a driver because virtualization, distributed computing, cloud-native services, automation, AI and managed infrastructure allow organizations to deploy and change systems more quickly. Option D is also a driver because businesses migrate to reduce infrastructure overhead, accelerate product delivery, support elastic capacity and improve competitiveness.
Option A is likewise named by Huawei. Government incentives include digital-transformation initiatives, regulatory frameworks, national infrastructure programs and policies that encourage adoption of cloud platforms. An executive mandate, option C, is a management authorization or directive rather than one of the curriculum's three fundamental drivers. Senior executives may choose to migrate, but the underlying purpose normally arises from technical, business or policy factors.
For example, an e-commerce company may migrate to Huawei Cloud because promotional peaks require Auto Scaling and ELB. Management signs off on the initiative, but the business driver is elasticity and faster service delivery. A manufacturing enterprise may migrate for access to IoT and AI services; that is an innovation-driven use case. Some exam banks incorrectly exclude government incentives, but Huawei's V3.5 slide explicitly includes them. The evidence supports C alone as the 'not a major factor' answer.
NEW QUESTION # 21
Cloud Certificate Manager (CCM) is a cloud service that offers one-stop lifecycle management for digital certificates. Which of the following statements about CCM is incorrect?
Answer: A
Explanation:
"CCM is a service that issues certificates and manages the lifecycle of certificates in the cloud. It provides SSL Certificate Manager (SCM) and Private Certificate Authority (PCA) services, and supports one-stop and full-lifecycle management of certificates."
"SSL certificates are classified into authoritative and self-signed certificates. An authoritative certificate is issued by a trusted digital certificate authority and is usually trusted by default. A self-signed certificate is issued by the user and is not trusted by default. However, you can continue to access the certificate after ignoring the alarm." Huawei source: Training PDF p. 382 Technical Deep Dive Huawei Cloud Certificate Manager (CCM) provides centralized certificate lifecycle management through SSL Certificate Manager (SCM) and Private Certificate Authority (PCA). Option A is correct because PCA provides a web interface for building a private CA hierarchy and issuing certificates for internal identities.
Option C is correct because SCM and PCA are named components of CCM. Option D is consistent with the curriculum's description of a certificate issued by a trusted CA after the relevant server identity or domain has been verified.
Option B is false. A self-signed certificate is itself a digital certificate usable with SSL/TLS, but the issuer and subject are generally the same entity. It does not lack 'SSL certificates', and it is not technically prohibited from use on Internet-facing services. The central difference is trust: public browsers and operating systems do not normally trust an arbitrary self-signed root by default, causing a warning. A client may explicitly trust that certificate or, in some circumstances, proceed after acknowledging the warning.
Self-signed certificates are common for internal development, testing and private environments; publicly trusted CA certificates are generally preferable for production public websites. Encryption and authentication depend on correct private-key protection, certificate-chain validation, hostname matching, appropriate TLS settings and renewal before expiration. Private CA certificates can be rotated under managed policies, but clients must trust the issuing hierarchy. Therefore B is the uniquely incorrect statement. The corrected understanding is 'self-signed certificates may establish encrypted connections but are not automatically trusted by public clients'.
NEW QUESTION # 22
A grayscale release is an important approach for secure software rollout or iteration. Which of the following statements about grayscale releases is incorrect?
Answer: B
Explanation:
"Canary release is also called grayscale release. It is a smooth iteration mode for version upgrade. During the upgrade, some users use the new version, while other users continue to use the old version. After the new version is stable and ready, it gradually takes over all the live traffic."
"Grayscale version: Only one grayscale version can be released for a service. You can configure grayscale policies for the version."
[The slide also identifies ratio-based and content-based traffic policies. ] Huawei source: Training PDF pp. 530, 532 Technical Deep Dive Grayscale or canary release gradually introduces a new application version to a selected portion of users or requests while the old version continues to serve the remainder. Option B accurately describes ratio-based traffic routing. For example, 75 percent of traffic can remain on the current version while 25 percent goes to the grayscale version; that share can be increased if health and business metrics remain acceptable. Option C matches Huawei V3.5's specific model, which describes a single active grayscale version per service and configurable policies for it.
Option A describes content-based routing: traffic can be selected by cookies, custom HTTP headers, query parameters, browser characteristics or operating systems. It is correct only in the context of that particular policy type; traffic-ratio policies do not require such conditions. The question should make that scope explicit to avoid an overly universal interpretation.
Option D is the intended false statement. Grayscale deployments are not reserved for major software versions. They are useful for minor fixes, security changes, performance improvements and major functional releases alike. A/B testing and blue-green deployment are separate rollout strategies, not exclusive recommendations for minor upgrades. Engineers should monitor error rates, request latency, throughput, user experience and dependency behavior as the percentage changes. Rollback policies and database schema compatibility are also important. Huawei's V3.5 material states that grayscale release minimizes risk by introducing the new version progressively. Therefore D is the incorrect assertion, with a wording qualification on A.
NEW QUESTION # 23
A customer purchased a general computing-plus Elastic Cloud Server (ECS) with the c9.xlarge.2 flavor on Huawei Cloud. This indicates that the ECS has 4 vCPUs and 16 GiB of memory.
Answer: A
Explanation:
"A flavor name usually consists of the instance family and generation, instance size, and memory/vCPU ratio."
[The naming slide] The xlarge designation represents four vCPUs, and the suffix .2 specifies a memory-to- vCPU ratio of two GiB per vCPU.
Huawei source: Training PDF p. 57
Technical Deep Dive
The flavor c9.xlarge.2 follows Huawei's naming convention. The c9 prefix identifies a general computing- plus ECS family, xlarge denotes four vCPUs, and the final .2 specifies two GiB of memory per vCPU. The instance therefore has four vCPUs and eight GiB of RAM, not 16 GiB. The correct answer is FALSE, option B.
An ECS with four vCPUs and 16 GiB would need a ratio of four GiB per vCPU, commonly indicated by a .4 suffix if a corresponding flavor is offered. Failing to interpret the suffix leads to predictable capacity mistakes.
For example, a Java application with a 12 GiB heap plus operating-system overhead cannot safely fit in an instance with only eight GiB of memory, even if its CPU requirement is within four vCPUs.
Huawei Cloud architects must check more than the core and memory totals: memory working sets, CPU peaks, network packet rates, EIP limits, disk IOPS and throughput can all determine application performance.
Correct flavor selection also depends on regional availability and the workload's operating system. General computing-plus infrastructure may offer high-performance virtualized I/O, but hardware optimizations do not increase the memory stated by the flavor naming rule. The question's arithmetic is unambiguous: four multiplied by two equals eight GiB, so the claim of 16 GiB is false.
Technical commands / calculations from the reviewed batch
4 vCPUs ร 2 GiB/vCPU = 8 GiB RAM
NEW QUESTION # 24
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