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| Section | Objectives |
|---|---|
| Topic 1: Operations and Monitoring | - Cloud monitoring and O&M
|
| Topic 2: Database and Middleware Services | - Cloud database services
|
| Topic 3: Network and Security Design | - Cloud network architecture
|
| Topic 4: Cloud Architecture Design Principles | - Huawei Cloud architecture overview
|
| Topic 5: Compute and Storage Services | - Elastic Cloud Server (ECS) and container services
|
| Topic 6: Solution Design and Migration | - Solution architecture design
|
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NEW QUESTION # 56
In architecture design, security generally means the capacity of a product or service to remain operational or executable under specified conditions and for a defined period. This attribute reflects both the product's availability and maintainability.
Answer: A
Explanation:
"Availability: The probability that a product or service remains operational or usable at any given time."
[Supporting material] Availability combines reliability and maintainability, and is distinct from the security design principle.
Huawei source: Training PDF p. 16
Technical Deep Dive
The statement is false because it substitutes the security concept for the availability concept. Availability measures the probability that a service is usable or operational when required, and its design is influenced by reliability, maintainability, redundancy and recovery capabilities. Security, by contrast, concerns protecting systems, information and infrastructure against unauthorized access, disclosure, modification and disruption.
Huawei's architecture design principles distinguish security and availability as separate concerns. An RDS primary/standby deployment can improve availability by enabling failover, but database security still requires authentication, least-privilege access, network restrictions, auditing and encryption. Similarly, Elastic Load Balance may improve resilience by distributing traffic among healthy backend ECSs; that does not independently protect an application from SQL injection or credential theft. Separate controls such as WAF, HSS, IAM and data encryption address those risks.
Availability can be assessed using SLA targets or quantitative measures such as mean time between failures and mean time to repair. Security controls can also influence availability-for example, DDoS mitigation protects service reachability-but the definitions are not interchangeable. Because the question describes remaining operational under specified conditions, it characterizes availability rather than security. The original word 'security' should remain in the false examination statement; silently correcting it would change the assessed answer.
NEW QUESTION # 57
Database Security Service (DBSS) offers database auditing, database encryption and access control, and database O & M capabilities. It records database user access in real time, produces fine-grained reports, and issues real-time alerts when attacks or risky operations are detected.
Answer: B
Explanation:
"DBSS provides database audit, database encryption and access control, and database O & M functions. It records user access to the database in real time, generates fine-grained audit reports, and sends real-time alarms for risky operations and attack behaviors."
"DBSS provides the database audit function in out-of-path mode, which consumes very little database performance." Huawei source: Training PDF pp. 378-379 Technical Deep Dive The statement closely reproduces the Huawei V3.5 Database Security Service (DBSS) definition, so it is TRUE, option A. DBSS provides database auditing, encryption and access-control-related capabilities and database O & M functions. It can record activity involving database users, produce fine-grained reports and alert administrators about suspicious or risky operations.
A central capability is database activity auditing. For example, an account unexpectedly executing a large series of SELECT statements against a customer-information table can be recorded for incident investigation.
Database audit reports help correlate actions with users and sessions, support compliance review and identify unusual access patterns. Huawei's material describes an out-of-path auditing mode, intended to minimize the performance impact on ordinary database requests. It also identifies SQL-injection detection and operational risk alarms.
Audit functions must be distinguished from active prevention. An out-of-path collector primarily observes activity; database privileges, authentication, approved operational workflows and encryption require their own correct design. When an encryption gateway or other in-path protection mode is deployed, the traffic-handling architecture and failure characteristics differ. DBSS can complement IAM, HSS, WAF and Cloud Trace Service, but none replaces a carefully secured database engine. Architects should define audit coverage, retention, tamper protection, access to audit records, alert routing and acceptable performance overhead. The exact source statement includes the same real-time access recording and fine-grained reporting features, making A the correct exam answer.
NEW QUESTION # 58
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,D
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 # 59
Serverless computing is a cloud-native development model. It enables developers to build and run applications without having to manage the underlying infrastructure, such as servers. Serverless means that no compute resources, including servers, are needed. To process services, you simply run your code in the cloud, which greatly lowers costs. This model lets developers concentrate more on service code, making it very developer-friendly.
Answer: A
Explanation:
"Serverless: Serverless computing is a cloud-native development model. It allows developers to build and run applications without the need to manage underlying infrastructure such as servers. Serverless does not mean there are no servers. Instead, it means all tasks related to server management, maintenance, and scaling are handled by cloud service providers."
"Serverless computing does not mean that we no longer use servers to host and run code, or O & M engineers are no longer needed." Huawei source: Training PDF pp. 52, 475 Technical Deep Dive The critical error is the claim that serverless computing uses no servers or compute resources. Huawei's V3.5 material explicitly states that serverless does not mean the absence of servers. Instead, it is an abstraction in which the cloud provider performs much of the infrastructure provisioning, maintenance and scaling that would traditionally be managed by the application developer. Physical computing capacity, operating systems, virtualization and runtime environments still execute the code.
In a conventional ECS deployment, a customer selects instance flavors, installs software, manages the guest OS and develops scaling and operational procedures. In a serverless environment such as Huawei FunctionGraph, developers upload functions or application code and configure triggers. The platform allocates and manages execution capacity based on incoming requests or events, while the developer focuses on business logic and function configuration.
Serverless can reduce operational effort and be cost-effective for intermittent or unpredictable demand.
However, it is not automatically cheaper in every circumstance; persistent high utilization, runtime limits, concurrency requirements, cold starts and billing granularity can affect the economics. Backend as a Service (BaaS) and Function as a Service (FaaS) are related but distinct models. Serverless also does not eliminate security, logging, monitoring or governance responsibilities. The statement's initial description of reduced infrastructure management is accurate, but its assertion that no computing resources exist is false. Therefore choose B.
NEW QUESTION # 60
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: A,B,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 # 61
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