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华为云 HCCDP-Solution Architectures

news 2025/11/1 18:08:39

实验练习

一、True or False

二、Single Choice

三、Multiple Choice

文章底部可以下载真题文档喔~

实验练习

官方链接：https://edu.huaweicloud.com/intl/en-us/certification/developer/39cff705a2c046878c7ea62c9e85ba79

务必熟练实验操作部分！

一、True or False

1. A good cloud service architecture should be able to detect the system status in a timely manner and solve system problems in an automated manner
一个好的云服务架构应该能够及时发现系统状态，自动化地解决系统问题

True
真

2. If an instance has a local disk attached, the local disk can be used either as a system disk or as a data disk.
如果实例附加了本地磁盘，则该本地磁盘既可以作为系统盘使用，也可以作为数据盘使用。

False
假

系统盘只能部署在云硬盘上，不可以部署在本地盘上。

https://support.huaweicloud.com/productdesc-ecs/zh-cn_topic_0094118976.html

3. When using functionGraph, you need to apply for or pre-configure compute, storage, and network services in advance and then upload software packages in the programming languages supported by FunctionGraph for execution.

使用 functionGraph 时，需要提前申请或预配置计算、存储、网络服务，然后上传 FunctionGraph 支持的编程语言的软件包进行执行。

False
假

4. An enterprise needs to deploy a simple service system on Huawei Cloud, When desining the network. architects need toproperly plan the subnets for service modules and reserve sufficient lP addresses for workload expansion.
企业需要在华为云上部署一个简单的业务系统，在网络化时。架构师需要合理规划服务模块的子网，并预留足够的 lP 地址用于工作负载扩展。

True
真

5. Huawei Cloud live (known as live, for short) provides functions such as livestream ingestion and distribution and media processing (transcoding, snapshot capturing, and recording) to help customers stream UHD content with low latency in high-concurrency scenarios
华为云直播（简称直播）提供直播摄发、媒体处理（转码、抓拍、录制）等功能，帮助客户在高并发场景下低延迟流式超高清内容

True
真

6. In VPc network planning and design, network isolation takes precedence over connectivity, You should not connect multiple VPCs for no reason.
在 VPC 网络规划和设计中 ，网络隔离优先于连接，不应无缘无故连接多个 VPC。

True
真

7. Huawei Cloud provides cloud server resources, and users need to maintain the operating system (OS), those above the OS, and their own service applications.
华为云提供云服务器资源，用户需要维护作系统（OS）、O S 以上的作系统以及自己的服务应用。

True
真

8. Local disks use the storage resources of the local physical server housing the instance, and they can represent a single point of failure (SPOF). To ensure data reliability, you are advised to configure data redundancy at the application layer when using local disks and synchronize or back up important data from local disks to other instances.
本地磁盘使用容纳实例的本地物理服务器的存储资源，它们可以代表单点故障（SPOF）。为了保证数据的可靠性，建议您在使用本地磁盘时在应用层配置数据冗余 ，并将本地磁盘中的重要数据同步或备份到其他实例。

True
真

9. Developers can avoid unnecessary Apl calls when writing code to reduce storage costs in Object Storage Service (OBS)
开发人员在编写代码时可以避免不必要的 Apl 调用，以降低对象存储服务（OBS）中的存储成本

True
真

10. A global organization has branches and data centers in different regions, To deploy a highly available, flexible, low-latency database system, the organization plans to deploy GaussD8 in different AZs of each region to enable intra-city high availability and disaster recovery (DR) capabilities.
 一个全球性组织在不同的区域设有分支机构和数据中心 ，为了部署一个高可用、灵活、低延迟的数据库系统，该组织计划在每个区域的不同可用区部署 GaussD8，以实现城市内的高可用性和容灾（DR）能力。

True
真

11. Document Database Service (DDs) is an easy-to-use MongoDB-compatible database service that is secure, highly available, reliable, and scalable. For environments where high availability and scale-out are required and massive data needs to be handled, you can use replica set instances.
文档数据库服务（DDs）是一种易于使用的兼容 MongoDB 的数据库服务，具有安全、高可用 、 可靠和可扩展的特点。对于需要高可用性和横向扩展，需要处理海量数据的环境， 可以使用副本集实例。

True
真

12. A company needs to deploy a service system on Huawei Cloud and requires third-party engineers to maintain VMs on the cloud. To audit maintenance logs, they can apply for a CBH instance and require third-party O&M engineers to use the CBH instance to maintain VMs through VPNs.
某企业需要在华为云上部署服务系统，需要第三方工程师在云上维护虚拟机 。 为了审计维护日志，可以申请 CBH 实例， 并要求第三方运维工程师使用 CBH 实例通过 VPN 维护 VM。

False
假

华为云CBH（Cloud Bastion Host）实例是统一安全管控平台，每个实例对应一个独立运行的云堡垒机系统，通过配置实例部署后台运行环境，保障系统安全。

13. DBSS is an intelligent database security service that protects user-built databases on Elastic Cloud Server (ECS) and Bare Metal Server (BMS), and RDS database instances. DBSS can protect databases in different VPCs and subnets
DBSS 是一种智能数据库安全服务，用于保护 ECS（Elastic Cloud Server）和 BMS（Bare Metal Server）上的用户构建数据库以及 RDS 数据库实例。DBSS 可以保护不同 VPC 和子网中的数据库

True
真

14. When you shop online, after the order system processes the order, it immediately sends the order information in real-time to downstream sub-systems (such as logistics, points, notifications, etc), and strictly confirms that the downstream systems have received the messages. This enhances the connection between systems and increases the operational efficiency of the system
当您在线购物时，订单系统处理订单后，立即将订单信息实时发送给下游子系统（如物流、积分、通知等），并严格确认下游系统已收到消息。这增强了系统之间的连接，提高了系统的运行效率

True
真

15. Huawei Cloud Auto Scaling can automatically increase or decrease the number of CPUs, memory size, and bandwidth size of an Elastic Cloud Server (ECS).
华为云弹性伸缩可以自动增加或减少弹性云服务器（ECS） 的 CPU 数量、内存大小和带宽大小。

False
假

弹性伸缩目前支持自动升降带宽资源，支持自动增加或减少伸缩组内ECS实例的数量，不支持自动升降服务器的CPU、内存等配置。

https://support.huaweicloud.com/as_faq/as_faq_0032.html

16. Availability is a percentage that is calculated after the system is deployed and implemented
可用性是在系统部署和实施后计算的百分比

True
真

17. In agile development, after an iteration or sprint ends, teams do not need a review because it is a waste of development time and will reduce the efficiency of agile development.
在敏捷开发中，迭代或冲刺结束后，团队不需要审查，因为这是浪费开发时间 ，并且会降低敏捷开发的效率。

False
假

二、Single Choice

1. When service systems are deployed on Huawei Cloud, application server cluster deployment is one of the most common deployment modes. Which of the following statements about this deployment mode is false?
在华为云部署业务系统时，应用服务器集群部署是最常见的部署模式之一。关于这种部署模式，以下哪项说法是错误的？

A. To improve system robustness and avoid single points of failure (SPOFs), you can deploy two or more application servers
A。 为了提高系统稳健性并避免单点故障 （SPOF），您可以部署两个或多个应用程序服务器

B. Application servers can work in active/standby mode and provide services for external systems. The backends use the same database.
B。 应用服务器可以在主动/备用模式下工作，并为外部系统提供服务。后端使用相同的数据库。

C. You can use Elastic Load Balance (ELB) to distribute traffic across the application servers, The backends use the same database, ELB distributes traffic to the backends based on the load balancing algorithm.
C. 您可以使用弹性负载均衡（EL B）在应用服务器之间分配 traffic，后端使用相同的数据库，ELB 根据负载均衡算法将流量分配到后端。

D. Application servers must be stateless and cannot use the cache service due to data consistency requirements.
D. 应用服务器必须是无状态的，由于数据一致性要求，不能使用缓存服务。

2. VPC Endpoint (VPCEP) enables servers in a Virtual Private Cloud (VPC) to access VPC endpoint services deployed in other VPCs through the intranet without using Elastic lPs (ElPs). Which of the following statements is true about the main features of VPCEP?
VPC Endpoint（VPCEP）使虚拟私有云（VPC）中的服务器能够通过内网访问部署在其他 VPC 中的 V PC 端点服务 ，而无需使用弹性 lP（ElP）。关于 VPCEP 的主要特性，以下哪项说法是正确的 ？

A. VPCEP enables resources in a VPC to access VPC endpoint services in another VPC without any limitations.
A. VPCEP 使一个 VPC 中的资源能够不受任何限制地访问另一个 VPC 中的 VPC 终端服务。

B. VPCEP supports cross-region network connection.
B. VPCEP 支持跨地域网络连接。

C. VPCEP enables users to access VPC endpoint services over an intranet.
C. VPCEP 使用户能够通过内网访问 VPC 端点服务。

D. VPCEP can replace VPC Peering Connection.
D. VPCEP 可以替代 VPC 对等连接。

3. Cloud Connect allows you to connect Virtual Private Clouds (VPCs) in different regions for private network communications. In which of the following scenarios is this capability of Cloud Connect used?
Cloud Connect 支持连接不同区域的 VPC（Virtual Private Cloud， 用于专网通信）。Cloud Connect 在以下哪种场景中使用？

A. Data Transmission between Data Centers and VPC
A. 数据中心与 VPC 之间的数据传输

B. Data replication and backup between different regions
B. 不同地域之间的数据复制和备份

C. High-speed data transmission between devices in different data centers
C. 不同数据中心设备之间的高速数据传输

D. Communications between VPCs in the same region
D. 同一地域 VPC 之间的通信

4. A user wants to migrate the Oracle RAC cluster from the on-premises IDC to the cloud, The Oracle RAC cluster requires high-performance servers that support shared volumes, Which of the following compute resources is recommended?
用户想要将 Oracle RAC 集群从本地 IDC 迁移到云端，Oracle RAC 平台需要支持共享卷的高性能服务器，推荐以下哪种计算资源？

A. Elastic cloud Server (ECS)
一个。 弹性云服务器（ECS）

B. Dedicated Host (DeH)
湾。 专用主机（DeH）

C. Bare Metal Server (BMS)
C. 裸机服务器（BMS）

D. Cloud Container Engine(CCE)
D. 云容器引擎（CCE）

5. A user plans to run a large-scale online application on Huawei Cloud. This application generates a large number of temporary files, requires high performance and low latency, and does not require much on storage reliability. Which of the following storage resources is recommended?
用户计划在华为云上运行大规模的在线应用程序 。该应用程序生成大量临时文件，要求高性能和低延迟，对存储可靠性要求不高。推荐以下哪一种存储资源？

A. Elastic Volume Service (EVS)
A. 弹性卷服务（EVS）

B. Local disks
B. 本地磁盘

C. Object Storage Service (OBS)
C. 对象存储服务（OBS）

D. Scalable File Service (SFS)
D. 可扩展文件服务（SFS）

6. Object Storage Service (OBS) allows you to configure lifecycle management rules to periodically transition objects between storage classes. Which of the following use cases for the lifecycle management is not suitable?
OBS（Object Storage Service）支持配置生命周期管理规则，在存储类之间周期性地转换对象 。以下哪种生命周期管理用例不适合？

A. Periodically uploaded log files need to be deleted upon expiration.
A. 定期上传的日志文件到期后需要删除。

B. Files that are not accessed for a long time need to be transitioned to another storage class to reduce storage costs
B. 长时间不访问的文件需要过渡到其他存储类，以降低存储成本

C. Financial or medical Gata must be retained to meet regulatory requirements.
C. 必须保留金融或医疗 Gata 以满足监管要求。

D. Data needs to be frequently accessed with low latency
D. 数据需要频繁访问，低延迟

7. user configures a policy in JSON to grant all users the **GetObject** and **putObject* permissions for the file *index.html* in the bucket **bucket-001**, Which of the following configurations is incorrect?
用户在 JSON 中配置策略，授予所有用户对 Bucket-001** 中文件 *index.html* 的 **GetObject** 和 **putObject* 权限 ，以下哪项配置不正确？

A. “Effect": "Allow"
A. “效果”：“允许”,

B. "Resource": "bucket-001”,
B. “资源”：“bucket-001”，

C. “Action":[ "GetObject", "PutObject" ],
C.“ 作”：[ “GetObject”， “PutObject” ]，

D. “Principal": { “ID": ["*"] },
D.“ 校长”： { “ID”： [“*”] }，

8. The order system of an e-commerce platform needs to synchronize inventory and payment information when an order is placed for a product. The order data is frequently read. To increase data query speed, which of the following is the best-fit database for storing order data?
 某电商平台的订单系统在商品下单时，需要同步库存和付款信息 。订单数据是频繁读取的。为了提高数据查询速度，以下哪项最适合存储订单数据的数据库？

A. GaussDB(DWS)

B. RDS for MySQL

C. GeminiDB Mongo API

D. GeminiDB Redis API

9. On the popular post page of social media platforms, each post has a large number of comments, A large number of users will comment on popular posts simultaneously. To reduce the database load and improve website performance, allowing it to fully focus on data write updates while also maintaining good read performance for posts and comments, which of the following strategies can be adopted?
在社交媒体平台的热门帖子页面上，每个帖子都有大量的评论，大量用户会同时对热门帖子进行评论。为了减少数据库负载并提高网站性能，使其能够完全专注于数据写入更新，同时也保持帖子和评论的良好读取性能， 可以采用以下哪种策略？

A. lmplement write-through caching and create a read-only database replica, directly writing user comments to the database, the comment information is obtained solely from read-only database replica, and updating the comment count for the corresponding posts in the cache.
A.lmplement 直写缓存并创建只读数据库副本，直接将用户评论写入数据库，评论信息仅从只读数据库副本中获取，并更新缓存中相应帖子的评论计数。

B. You can use a time-based expiration strategy. The platform sets an expiration time so that comment data will expire when a specified time expires. This can prevent frequent data writes.
B. 您可以使用基于时间的过期策略。平台设置过期时间，以便评论数据在指定时间到期时过期。这样可以防止频繁写入数据。

C. lmplement write-back caching and create a read-only database replica, writing user comments first to the cache, periodically batch updating them to the database, and updating the comment count for the corresponding posts in the cashe
C. lmplement write-back 缓存并创建一个只读数据库副本，首先将用户评论写入缓存，定期批量更新到数据库中，并更新缓存。

D. You can use user-based personalized caching, The comments of frequently accessed posts are cached locally to reduce the server load.
D. 可以使用基于用户的个性化缓存，将经常访问的帖子的评论缓存在本地，以减少服务器负载。

10. DBSS provides security services for cloud databases. Which of the following statements about DBSS is false?
DBSS 为云数据库提供安全服务。以下关于 DBSS 的陈述中，哪项是错误的？

A. DBSS dynamically masks sensitive data in databases by modifying the original data.
A. DBSS 通过修改原始数据来动态屏蔽数据库中的敏感数据。

B. DBSS can block SQL injections in real time.
B. DBSS 可以实时阻止 SQL 注入。

C. DBSS can monitor the access behavior of login users in a database and generate real-time alarms for abnormal behaviors, logins, and accesses.
C. DBSS 可以监控数据库中登录用户的访问行为，并针对异常行为、登录和访问生成实时告警。

D. DBSS can identify abnormal user behaviors based on the machine learning mechanism and big data analysis
D. DBSS 可以基于机器学习机制和大数据分析来识别异常用户行为

华为云官方文档明确说明，DBSS 的“动态脱敏”功能不会修改数据库中的原始数据，而是在查询返回结果时实时改写敏感字段，做到“应用无感、零存储变更

11. Enterprises use AOM for efficient, reliable, and operable O&M. Which of the following statements about AOM is false?

AOM(应用运维管理)
企业使用 AOM 进行高效、可靠、可作的运维。关于 AOM 的以下陈述中，哪项是错误的？

A. AOM monitors and analyzes massive numbers of performance metrics but not in real time
答：AOM 监控和分析大量性能指标，但不是实时的

B. AOM provides alarms, logs, and metrics, and detects and analyzes exceptions.
B. AOM 提供告警、日志和指标，并检测和分析异常。

C. AOM provides APls for cloud services and applications to report data.
C. AOM 为云服务和应用提供 APls 来上报数据。

D. AOM aggregates, caches, and compresses collected data.
D. AOM 对采集的数据进行聚合、缓存和压缩。

12. A company plans to migrate its portal to Huawei Cloud, Which of the following do you think can improve website availability and cost-effectiveness?
某公司计划将其门户迁移到华为云，您认为以下哪项可以提高网站的可用性和成本效益？

A. Use Content Delivery Network (CDN) to distribute static website content and store application content on CDN nodes
A. 使用内容分发网络（CDN）分发静态网站内容，将应用内容存储在 CDN 节点上

B. Deploy the website using Elastic Cloud Server (ECS) and Relational Database Service (RDs), separate static content from dynamic content, store static content in Object Storage Service (OBS) and dynamic content in an ECS, and use Elastic Load Balance (ELB)and Auto Scaling to improve website availability.
B. 使用弹性云服务器（ECS）和关系数据库服务（RDS）部署网站，将静态内容与动态内容分离，静态内容存储在对象存储服务（OBS）中，动态内容存储在 ECS 中，使用弹性负载均衡（ELB）和弹性伸缩来提高网站可用性。

C. Use ELB to distribute requests across backend servers based on forwarding policies and buy backend servers in the same AZ for higher website performance and availability.
C. 使用 ELB 根据转发策略在后端服务器之间分配请求，并在同一可用区购买后端服务器以提高网站性能和可用性。

D. Associate a domain name with a private lP address to provide services accessible from the Internet, preventing service addresses from being exposed to the Internet.
D. 将域名与私有 LP 地址关联，提供可从互联网访问的服务，防止服务地址暴露在互联网上。

“静态资源→OBS、动态业务→ECS+RDS

13. As a cloud architect, which one of the following services you would use to reduce the dependencies between systems when designing a distributed architecture?
作为云架构师，在设计分布式架构时，您会使用以下哪一项服务来减少系统之间的依赖关系 ？

A. Auto Scaling
A. 自动扩展

B. Relational Database Service (RDS)
B. 关系数据库服务（RDS）

C. Distributed Message Service (DMS)
C. 分布式消息服务（DMS)

D. Object Storage Service (OBS)
D. 对象存储服务（OBS）

在分布式架构中，系统之间的强依赖是耦合性的主要来源。使用消息队列（DMS）可以将同步调用转为异步消息通信，实现系统解耦、削峰填谷、提高可靠性和可扩展性。这是官方文档中推荐的解耦手段

14. A technical team wants to improve system scalability and reliability as well as cost-effectiveness. Which of the following cannot help them?
技术团队希望提高系统的可扩展性和可靠性以及成本效益 。以下哪项对他们没有帮助？

A. Using open-source software to save money on licensing
A. 使用开源软件节省许可费用

B. Using automatic scaling policies to handle different workloads
B. 使用自动伸缩策略处理不同的工作负载

C. Deploying applications in multiple AZs to implement failover
C. 在多个可用区中部署应用以实现故障转移

D. Periodically testing and optimizing system performance to ensure system stability under heavy workloads
D. 定期测试和优化系统性能，确保系统在繁重工作负载下的稳定性

15. A startup company wants to expand their business to more regions, and user traffic is expected to increase. Their CE0 hopes that the technical team can design a highly scalable architecture to ensure user experience and system reliability. which of the following policies can help the team achieve this goal?
 一家初创公司希望将业务扩展到更多地区，用户流量有望增加。他们的 CE0 希望技术团队能够设计出一个高度可扩展的架构，以确保用户体验和系统可靠性。以下哪项政策可以帮助团队实现这一目标？

A. Upgrading all servers to the highest specifications to ensure sufficient processing capability
A。 将所有服务器升级到最高规格，以确保足够的处理能力

B. Deploying services in multiple AZs, using Elastic Load Balance (ELB) to check server health, and using Auto scaling to replace healthy servers
B. 在多个可用区部署服务，使用弹性负载均衡（ELB）检查服务器健康，使用弹性伸缩替换健康服务器

C. Asking the administrator to temporarily adding servers during peak-hours
C. 要求管理员在高峰时段临时添加服务器

D. Using a third-party CDN service to relieve the access pressure on core services
D. 使用第三方 CDN 服务缓解核心业务的访问压力

16. Identity and Access Management (lAM) is a basic service provided by Huawei Cloud for identity authentication and permission management. Which of the following statements about lAM is false?
身份与访问管理（IAM）是华为云提供的一项基础服务，用于身份认证和权限管理。以下关于 IAM 的陈述中，哪一项是错误的？

A. A Huawei Cloud account and its lAM users share a parent-child relationship, The account owns the resources and makes payments for the resources used by lAM users.
A。 华为云账号与其 lAM 用户共享父子关系，该账号拥有资源，并为 lAM 用户使用的资源付费。

B. A Huawei Cloud account has full permissions. lt can modify or revoke the permissions of lAM users at any time
B. 华为云账号拥有全权限。可以随时修改或撤销 lAM 用户的权限

C. lAM users can be authorized through user groups.
C. lAM 用户可以通过用户组进行授权 。

D. The **admin* user group is the default user group and has full permissions for all cloud service resources. Only accounts can be added to the **admin** user group. lAM users cannot be added to it.
D.**admin* 用户组是默认用户组，对所有云服务资源具有完全权限。只能将帐户添加到 **admin** 用户组。无法将 lAM 用户添加到其中。

17. network interface is a network resource provided by the cloud computing platform. A network interface can be attached to an Elastic Cloud Server (ECS) or Bare Metal Server (BMS) for network communications. Network interfaces are similar to physical NlCs. Which of the following statements is true about elastic network interfaces?
 网络接口是云计算平台提供的网络资源。网络接口可以连接到弹性云服务器（ECS）或裸机服务器（BMS）进行网络通信。网络接口类似于物理 NlC。关于弹性网络接口，以下哪项说法是正确的？

A. They use the virtual lP address of cluster servers for load balancing.
A. 它们使用集群服务器的虚拟 lP 地址进行负载均衡。

B. They work with ElPs to allow access from the Internet to the web application deployed on an ECS
B. 它们与 ElP 合作，允许从 Internet 访问部署在 ECS 上的 Web 应用程序

C. Elastic Network interfaces (ENls) of virtual machines can directly communicate with physical servers outside the cloud.
C. 虚拟机的弹性网络接口（ENls）可以直接与云外的物理服务器进行通信。

D. A network interface can be bound to an active or standby VM. When the active or standby VM is faulty, the network interface is bound the normal VM.
D. 网络接口可以绑定到活动或备用虚拟机。当活动或备用虚拟机出现故障时，网络接口将绑定到普通虚拟机。

18. 假设一家公司计划将其业务系统迁移到华为云。他们希望在 VPC 中部署其数据库和 Web 应用程序。他们希望用户访问他们的 Web应用程序，但不希望他们从 internet 访问他们的数据库。您认为以下哪一项是公司增强安全性、降低成本和简化运维的最佳解决方案?

A. Create a VPC and two subnets in the same region, deploy the database and web application in different subnets, and use security groups to control access to the resources in the two subnets.
A. 在同一地域创建一个 VPC 和两个子网，将数据库和 Web 应用部署在不同的子网中，使用安全组控制对两个子网中资源的访问。

B. Create two VPCs in the same region, deploy the database in one VPC and isolate the database from the Internet, deploy the web application in the other VPC, and use a VPC peering connection to connect the two VPCs for necessary communications.
B. 在同一地域创建两个 VPC，将数据库部署在一个 VPC 中，并将数据库与 Internet 隔离，在另一个 VPC 中部署 Web 应用，并使用 VPC 对等连接连接两个 VPC 进行必要的通信。

C. Create two VPCs in different regions, deploy the database in one VpC and the web application in the other Vpc, and use a Cloud Connect connection to connect the two VPCs for necessary communications.
C. 在不同地域创建两个 VPC，将数据库部署在一个 VpC 中，将 Web 应用部署在另一个 Vpc 中，并使用 Cloud Connect 连接两个 VPC 进行必要的通信。

D. Create two VPCs in the same region, deploy the database in one Vpc and isolate the database from the internet, deploy the web application in the other Vpc, and use VPc Endpoint to connect the two VpCs and security groups for necessary communications.
D. 在同一地域创建两个 VPC，将数据库部署在一个 Vpc 中，并将数据库与互联网隔离，在另一个 Vpc 中部署 Web 应用程序，并使用 VPc Endpoint 连接两个 VpC 和安全组，以进行必要的通信。

19. Both scripts and images can be used to initialize a server. You should select an initialization mode based on actual requirements Which of the following statements is false?
脚本和镜像都可以用于初始化服务器。您应该根据实际需求选择初始化模式以下哪项陈述是错误的？

A. The storage cost of using images is higher than that of using scripts.
A. 使用镜像的存储成本高于使用脚本的存储成本。

B. The update speed of images is slower than that of scripts.
B. 镜像的更新速度比脚本慢。

C. The startup speed of images is slower than that of scripts
C镜像启动速度比脚本慢

D. Creating an image requires workload
D. 创建镜像需要工作量

20. storage architect needs to consider the five principles in architecture design, What principle should be followed when the architect selects a proper redundancy option for data storage?
存储架构师需要考虑架构设计中的五项原则 ，架构师在为数据存储选择合适的冗余选项时应该遵循什么原则 ？

A. Security
A. 安全

B. Performance
B. 性能

C. Reliability
C. 可靠性

D. Maintainability
D. 可维护性

21. A real-time data analysis platform has a large number of real-time events to be aggregated, calculated, and analyzed. The platform requires high real-time performance, so a Level 1 cache has been designed to accelerate query speed. However, this may result in data inconsistencies, Which of the following is the best-fit method for dealing with such scenarios?
实时数据分析平台有大量的实时事件需要聚合、计算和分析。该平台对实时性要求很高，因此设计了 1 级缓存来加快查询速度。然而，这可能会导致数据不一致，以下哪项是处理此类场景的最佳方法？

A, You do not need to set the cache Time to live (TTL) to ensure that data can be updated in real time.
A、无需设置缓存 TTL（Time to live），即可确保数据可以实时更新。

B. You can add more cache servers to improve the cache hit ratio.
B. 您可以添加更多缓存服务器以提高缓存命中率。

C. You can use periodic updates to periodically delete old data and update the cache.
C. 您可以使用定期更新来定期删除旧数据并更新缓存。

D, You can set an appropriate cache TTL to keep a balance between dirty data tolerance and access performance
D、您可以设置适当的缓存 TTL，以在脏数据容限和访问性能之间保持平衡

22. A social media application frequently obtains each user's follows by using user IDs, so the application has to handle hundreds of millions user data records. To have a definite response speed, which of the following is the best-fit database for this scenario?
社交媒体应用经常使用用户 ID 获取每个用户的关注，因此该应用必须处理数亿条用户数据记录。要有明确的响应速度，以下哪项数据库最适合该场景？

A, RDS for PostgreSQL

B, RDS for MySOL

C. GeminiDB

D. GaussDB(for MySQL)

23. John is a cloud architect and plans to use Data Encryption Workshop (DEW) during cloud service data security planning. Which of the following operations is incorrect?
2John 是一名云架构师，计划在云服务数据安全规划期间使用 Data Encryption Workshop （DEW）。以下哪项作不正确？

A, An employee needs to upload files to OBS on Huawei Cloud. To ensure data security, John can enable service-side encryption and select a customer master key (CMK) to encrypt the uploaded data.
A、员工需要将文件上传到华为云 OBS。为了保证数据安全，John 可以开启业务侧加密，并选择客户主密钥（CMK）对上传的数据进行加密。

B. Employees should use SSH to log in to the Linux elastic cloud servers (ECSs). John needs to create key pairs for employees who log in to the cloud server., Employees can log in to the cloud server using their own private keys
B. 员工应使用 SSH 登录 Linux 弹性云服务器（ECS）。John 需要为登录云服务器的员工创建密钥对，员工可以使用自己的私钥登录云服务器

C. To ensure that employees can securely access the database server, john needs to create secrets using Cloud Secret Management service (CSMS) and use secrets instead of plaintext passwords when calling database APls to avoid any potential data breaches.
C.为了确保用户可以安全地访问数据库服务器，john 需要使用云密钥管理服务（CSMS）创建密钥，并在调用数据库 AP 时使用密钥而不是明文密码，以避免任何潜在的数据泄露。

D. CMKs are used in the data encryption process on Key Management Service (KMS). To ensure CMK security, John needs to store CMKs on the local host.
D.CMK 用于密钥管理服务（KMS）上的数据加密过程。为了保证 CMK 的安全性，John 需要将 CMK 存储在本地主机上。

CMK 必须保存在华为云 KMS 的 HSM 中，绝不能导出到本地主机，否则失去硬件保护与合规性。

24. What service helps enterprises monitor, manage, and optimize their applications through resource management, performance monitoring, capacity planning, and automation?
什么服务可以帮助企业通过资源管理、性能监控、容量规划和自动化来监控、管理和优化其应用程序？

A, Log Tank Service (LTS)
A、原木罐服务（LTS）

B. Application Operations Management (AOM)
B. 应用程序运营管理（AOM）

C. Cloud Trace Service (CTS)
C. 云跟踪服务（CTS）

D. Application Performance Management (APM)
D. 应用程序性能管理（APM）

APM 侧重链路追踪和代码级性能，不做主机/容器资源管理和容量规划

25. An e-commerce enterprise plans to launch a series of marketing activities on its official website, which may cause traffic surges. Though the website uses a multi-layer network architecture, traffic surges may crush the website during promotions. As a cloud architect, which of the following you would do to minimize the potential pressure?
某电商企业计划在其官网上推出一系列营销活动，这可能会导致流量激增。尽管网站采用多层网络架构，但在促销期间流量激增可能会压垮网站。作为云架构师，您会采取以下哪项措施来最大程度地减少潜在压力？

A, Migrate databases to Huawei Cloud Relational Database Service (RDS).
A、将数据库迁移到华为云关系数据库服务（RDS）。

B. Configure a Domain Name Service (DNS) record set to switch services to a statistics website.
B. 配置域名服务（DNS）记录集，将服务切换到统计网站。

C. Buy an RDS instance with the highest specifications
C. 购买最高规格的 RDS 实例

D. Use Elastic Load Balance (ELB) and Auto Scaling at the application layer.
D. 在应用层使用弹性负载均衡（ELB）和弹性伸缩。

26. An e-commerce platform needs to confidently process expected sharp traffic increases during a big promotion. Which of the following is the best way for them to achieve this goal?
电子商务平台需要自信地处理大型促销期间预期的流量急剧增长。以下哪项是他们实现这一目标的最佳方式？

A, Statically allocating sufficient resources based on the expected heaviest load
A、根据预期的最重负载静态分配足够的资源

B. Using Huawei Cloud Auto Scaling to automatically adjust compute resources
B. 使用华为云弹性伸缩自动调整计算资源

C. Manually adding servers only during peak hours
C. 仅在高峰时段手动添加服务器

D. Stopping unnecessary applications to save resources
D. 停止不必要的应用程序以节省资源

27. A company uses Huawei Cloud Eye to monitor the performance and availability of their applications in real time. Which of the following can be monitored only by calling Cloud Eye APIs?
某企业使用华为云眼实时监控其应用的性能和可用性。以下哪项只能通过调用云眼 API 进行监控？

A, CPU and memory usage of servers
A、服务器的 CPU 和内存使用情况

B, Network bandwidth usage
B、网络带宽使用

C, Access traffic changes and response time of applications
C、应用程序的访问流量变化和响应时间

D, Read/write operations on and connections to RDS databases
D、RDS 数据库的读/写作和连接

28. On Huawei Cloud, the Domain Name Service (DNS) cannot automatically switch services between the production and disaster recovery (DR) sites. it is used together with Cloud Eye for function code design. Which of the following operations is incorrect?
在华为云上，域名服务（DNS）无法在生产站点和容灾站点之间自动切换服务。它与云眼一起使用，用于功能代码设计。以下哪项作不正确？

A, Configuring public IP addresses for the active and standby servers before the design
A、设计前配置主备服务器的公网 IP 地址

B, Writing domain names instead of public IP addresses in the code
B、在代码中写域名而不是公网 IP 地址

C. Configuring Cloud Eve website monitoring and FunctionGraph functions so that the functions can be automatically invoked to modify external DNS resolution records when alarms are generated.
C. 配置 Cloud Eve 网站监控和 FunctionGraph 功能，以便在告警生成时自动调用函数修改外部 DNS 解析记录。

D. Using Application Operations Management (AOM) to replace Cloud Eye for monitoring
D. 使用应用运维管理（AOM）代替云眼进行监控

AOM（Application Operations Management）是面向应用层的运维管理工具，主要用于日志、指标、链路追踪等，不支持触发函数计算（如 FunctionGraph）来做自动化运维动作。

Cloud Eye 是监控和告警服务，支持与 FunctionGraph 集成，可在告警时触发函数执行自定义逻辑（如修改 DNS）。

所以，AOM 无法替代 Cloud Eye 在此场景中的作用。

29. A company wants to deploy their database engine in a cluster that consists of Elastic Cloud Servers (ECSs). The engine replicates data to all ECSs to prevent data loss due to node damage. The engine stores data in file systems, so it requires superhigh throughput and super-low latency. Which of the following is the best storage solution for this scenario?
一家公司希望将其数据库引擎部署在由弹性云服务器（ECS）组成的集群中。该引擎将数据复制到所有 ECS，以防止因节点损坏而导致数据丢失。该引擎将数据存储在文件系统中，因此需要超高吞吐量和超低延迟。以下哪项是适用于此场景的最佳存储解决方案？

A, Object Storage Service (OBs)
A、对象存储服务（OB）

B. Scalable File Service (SFs)
B. 可扩展文件服务（SF）

C. Elastic Volume Service (EVS)
C. 弹性卷服务（EVS）

D. Local disks
D. 本地磁盘

30. Which of the following is true about Resource Formation Service (RFS)?
关于资源形成服务（RFS）的以下哪项是正确的？

A, RFS must use templates to deploy resources.
A：RFS 必须使用模板来部署资源。

B. Only .json, .tf, or .yaml templates can be imported to RFS
B. RFS 只能导入 .json、.tf 或 .yaml 模板❌

C. Templates exported from RFS Visual Designer are .json or .zip.
C. 从 RFS Visual Designer 导出的模板是.json 的还是.zip 的。

D. .tf templates downloaded from other cloud platforms can directly deploy Huawei Cloud resources without any modification.
D. 从其他云平台下载的 .tf 模板，无需任何修改即可直接部署华为云资源。

31. Which of the following statements about the differences between Cloud Container Engine (CCE) and Cloud Container instance(CCl) is false?
关于 Cloud Container Engine （CCE）和 Cloud Container instance （CCl）之间差异的以下陈述中，哪项是错误的？

A, lf CCE is used, you need to create a cluster and nodes. lf CCl is used, you can directly start applications without the need to create a cluster.
A，如果使用 CCe，则需要创建集群和节点。如果使用 CCl，则无需创建集群即可直接启动应用程序。

B. lf CCE is used, each CCE cluster is billed by hour, lf CCl is used, each container instance is billed by second.
B. 如果使用 CCE，则每个 CCE 集群按小时计费，如果使用 CCl，则每个容器实例按秒计费。

C. CCE can be used in almost any scenarios, typically for large-scale, long-term stable applications or the applications with high security requirements and separate clusters, CCl is also good for scenarios with significant peaks and troughs.
C. CCe 几乎可以用于任何场景，通常适用于大规模、长期稳定的应用或安全要求高、集群分开的应用，CCl 也适用于波峰和波谷显著的场景。

D. Both CCE and CCl support the creation of common workloads, such as Deployments, StatefulSets, and DaemonSets.
D. CCE 和 CCl 都支持创建常见工作负载，例如 Deployments、StatefulSet 和 DaemonSets。

CCI 不支持 DaemonSet 类型工作负载

32. A large enterprise has experienced multiple evolutions of its application architecture in the past decade, Initially. they used a monolithic architecture to build a centralized application. After service development, they switched to the SOA architecture and broke down different functions into independent services, Recently, they have started to use the microservice architecture to speed up development and isolate faults, Among these architectures, which one features loose coupling between services and allows each service to use a separate database and multiple technology stacks?
一家大型企业在过去十年中经历了其应用架构的多次演变，最初。他们使用单体架构来构建一个集中式应用程序。在服务开发之后，他们转向 SOA 架构，将不同的功能分解为独立的服务，最近，他们开始使用微服务架构来加快开发速度并隔离故障，在这些架构中，哪一种具有服务之间松散耦合并允许每个服务使用单独的数据库和多个技术堆栈的特点？

A, Monolithic
A、单片

B. SOA

C. Microservice
C. 微服务

D. MVC

三、Multiple Choice

1. Which of the following statements about Huawei Cloud storage services are true?
关于华为云存储服务的以下哪些陈述是正确的？

A. Object Storage Service (OBS) is ideal for storing unstructured data such as documents, images, audio, and video.
A：对象存储服务（OBS）非常适合存储文档、图像、音频和视频等非结构化数据。

B. Scalable File Service (SFs) can provide fully hosted, shared file storage for Elastic Cloud Servers (ECSs). it is good for high -performance computing, media processing, file sharing, content management, web services, and more.
B. 可扩展文件服务（SFs）可以为弹性云服务器（ECS）提供完全托管的共享文件存储。它适用于高性能计算、媒体处理、文件共享、内容管理、Web 服务等。

C. Elastic Volume Service (EVS) offers scalable block storage for cloud servers. it features high reliability, high performance, and robust specifications and can be used in the development, testing, production, and other scenarios for different applications.
C. 弹性卷服务（EVS）为云服务器提供可扩展的块存储。它具有高可靠性、高性能和鲁棒的规格，可用于不同应用的开发、测试、生产等场景。

D. Storage Disaster Recovery Service (SDRs) adopts synchronous data replication to provide cross-region disaster recovery with zero RPO.
D. 存储容灾服务（SDRs）采用同步数据复制，提供零 RPO 的跨地域容灾。

SDRS 提供的是零 RPO 的跨可用区（AZ）灾难恢复，而非跨区域。它在同一区域内不同可用区之间使用同步复制

2. An enterprise is considering using Direct Connect to connect its on-premises data center to the cloud. Which of the following are common application scenarios of Direct Connect?
某企业正在考虑使用直联将其本地数据中心连接到云端。以下哪项是直联的常见应用场景？

A. High-speed, stable data transmission
A. 高速、稳定的数据传输

B. Dedicated network connection between the on-premises data center and Virtual Private Clouds (VPCs) for data compliance
B. 本地数据中心与虚拟私有云（VPC）之间的专用网络连接，以实现数据合规性

C. A secure, compliant IPsec tunnel for data transmission
C. 用于数据传输的安全、合规的 IPsec 隧道

D. Simple website hosting for small businesses
D. 小型企业的简单网站托管

3. Huawei Cloud has different image types. You need to ensure the security of images to deploy and run services smoothly. Huawei Cloud is responsible for the security of which of the following images?
 华为云的镜像类型不同。需要保证镜像的安全性，才能顺利部署和运行服务 。 华为云负责以下哪种镜像的安全？

A. Public images
A. 公共图像

B. Private images
B. 私人图像

C. Shared images
C. 共享图像

D. Marketplace images
D. 市场镜像

4. Huawei Cloud Scalable File Service (SFs) provides completely hosted shared file storage for cloud servers and can seamlessly handle data-intensive and bandwidth-intensive applications. Which of the following statements about SFS functions are true?
华为云可扩展文件服务（SFs）为云服务器提供完全托管的共享文件存储，可以无缝处理数据密集型和带宽密集型应用。关于 S FS 功能的以下陈述中哪项正确 ？

A. An SFs file system can be mounted to different Elastic Cloud Servers (ECSs) across regions so that multiple ECSs can access the same file system and share files
A. 一个 SFs 文件系统可以跨地域挂载到不同的 ECS，以便多个 ECS 可以访问同一个文件系统并共享文件

B. SFS supports standard protocols so that a broad range of mainstream applications can read and write data in the filesystem.
B.SFS 支持标准协议，以便广泛的主流应用程序可以在文件系统中读取和写入数据。

D. SFS file system performance improves as the capacity increases.
D. SFS 文件系统性能随着容量的增加而提高。

弹性文件服务可以根据您的使用需求，在不中断应用的情况下，增加或者缩减文件系统的容量。一键式操作，轻松完成您的容量定制

https://support.huaweicloud.com/productdesc-sfs/zh-cn_topic_0034428718.html

5. Relational Database Service (RDS) is a cloud-based, online relational database service. Which of the following statements are true about RDS?
关系数据库服务（RDS）是一种基于云的在线关系数据库服务。 关于 RDS，以下哪项陈述是正确的？

A. You can scale database resources based on service requirements
A. 您可以根据服务需求扩展数据库资源

B. Some operations on RDs DB engines are slightly different from those on native DB engines, but most of them are the same.
B。RDS 数据库引擎上的一些作与原生数据库引擎上的作略有不同 ，但大多数作是相同的。https://support.huaweicloud.com/productdesc-rds-mysql/rds_01_0001.html

C. RDS encrypts data written into the database before storing it.
C. RDS 在存储数据之前对写入数据库的数据进行加密。

RDS 提供透明数据加密（TDE）功能，但需用户手动开启并上传密钥，非默认行为。
默认情况下，数据以明文形式写入，不自动加密；

D. RDs network security is ensured by using the Virtual Private Cloud (VPC) service. VPCs protect databases from being exposed to unauthorized access sources.
D. 使用虚拟私有云（VPC）服务来确保 RDS 的网络安全。VPC 保护数据库不暴露于未经授权的访问源。

6. A non-relational (NoSQL) database is a database management system. Which of the following statements are true about NoSQL database features?
非关系型（NoSQL）数据库是一种数据库管理系统。关于 NoSQL 数据库功能，以下哪项陈述是正确的 ？

A. Each data record is a structured document
A. 每条数据记录都是一个结构化文档

B. The database engine is not responsible for logical relationships
B. 数据库引擎不负责逻辑关系

C. A NoSQL database can locate data using key values instead of using complex queries
C. NoSQL 数据库可以使用键值而不是使用复杂的查询来定位数据

D. Table structures must be predefined for storing data
D. 必须预定义表结构以存储数据

7. Which of the following statements about the functions of Anti-DDos are true?
以下关于 DDos 高防功能的说法中，哪一项是正确的？

A. Anti-DDoS monitors the service traffic from the Internet to public IP addresses to detect attack traffic in real time
A. DDoS 高防监控从公网到公网 IP 的业务流量，实时检测攻击流量

B. Anti-DDoS provides interception reports for all protected public iP addresses and allows users to query attack statistics
B. DDoS 高防提供所有受保护的公共 iP 地址的拦截报告，并允许用户查询攻击统计数据

C. Anti-DDos provides Layer 4 DDos protection capabilities to defend against UDP flood attacks and SYN flood attacks
C. DDos 高防提供四层 DDos 防护能力，防御 UDP 泛洪攻击和 SYN 泛洪攻击

D. Anti-DDoS is deployed at service system egresses to control all inbound and outbound network traffic using traffic diversion and retrieval techniques.
D. 在业务系统出口处部署 DDoS 防护，利用流量分流和检索技术控制所有入出网络流量 。

8. An internet company uses the ECS service provided by Huawei Cloud to build an application system. Xiaohua is part of the security O&M team of the company. To ensure operational security, Xiaohua uses the HSS service on the cloud to protect the cloud system, Which of the following 0&M operations can Xiaohua perform?
某互联网公司使用华为云提供的 E CS 服务搭建应用系统。小华是该公司安全运维团队的一员 。为保证运营安全，小华使用云上的 H SS 服务来保护云系统，小华可以执行以下哪项 0&M 作？

A. Install the HSS agent on the ECS to perform daily server scan tasks.
A. 在 ECS 上安装 HSS 代理，执行日常服务器扫描任务。

B. Monitor ECSs on the cloud in real time to learn about the security status of servers
B. 实时监控云端 ECS，了解服务器安全状态

C. Use technologies such as Al, machine learning, and deep algorithms to analyze server security risks.
C. 利用人工智能、机器学习、深度算法等技术分析服务器安全风险。

D. Configure HSS to automatically fix known vulnerabilities on the server, preventing hacker attacks
D. 配置 HSS 以自动修复服务器上的已知漏洞，防止黑客攻击

9. Cloud Eye collects, displays, and pushes data. Which of the following statements about data collection are true?
云眼收集、展示和推送数据。以下关于数据收集的说法中哪一项是正确的？

A. infrastructure monitoring: To avoid wasting resources or prevent service exceptions caused by overloaded resources Cloud Eye monitors infrastructure metrics, such as Elastic Cloud Server (ECS) and Relational Database Service (RDs)metrics.
A. 基础设施监控：为了避免资源浪费或防止资源过载导致的服务异常，云眼监控基础设施指标，例如弹性云服务器（ECS）和关系数据库服务（RD）指标。

B. Website monitoring: Cloud Eye uses HTTP, HTTPS, TCP, UDP, and PING protocols to monitor website health.
B. 网站监控：云眼使用 HTTP、HTTPS、TCP、UDP 和 PING 协议来监控网站健康状况。

C. Application monitoring: Service applications proactively provide application information, such as the number of user logins per minute, to Cloud Eye.
C. 应用监控：服务应用主动向云眼提供应用信息，如每分钟用户登录数等。

D. Cloud resource monitoring: Cloud Eye monitors cloud resources in real time. When the user-defined thresholds are reached, alarms will be generated, Cloud Eve can automatically handle exceptions and then clear alarms.
D. 云资源监控：云眼实时监控云资源。当达到用户自定义阈值时 ，会生成告警，Cloud Eve 可以自动处理异常，然后清除告警。

10. In a distributed architecture, Elastic Load Balance (ELB) can be used in many scenarios. Which of the following are application scenarios of ELB?
 在分布式架构中，弹性负载均衡（ELB）可以在许多场景中使用。以下哪项是 ELB 的应用场景？

A. For an application with heavy traffic, such as a large web portal or mobile app store, ElB evenly distributes incoming traffic across multiple backend servers, balancing the load while ensuring steady performance.
A. 对于流量较大的应用程序，例如大型门户网站或移动应用商店，ElB 将传入流量均匀分布在多个后端服务器上，在平衡负载的同时确保稳定的性能。

B. For an application that has peaks and troughs in traffic volumes, ElB works with Auto Scaling to add or remove backend servers to keep up with the changing demand
B. 对于流量有高峰和低谷的应用程序，ElB 与 Auto Scaling 合作添加或删除后端服务器，以跟上不断变化的需求

C. For services that require high reliability, ELB routinely performs health checks on backend servers in different regions to monitor their health, lf a backend server becomes faulty, ELB automatically distributes incoming requests to healthy backend servers, ensuring service continuity.
C. 对于需要高可靠性的服务，ELB 会定期对不同地区的后端服务器进行健康检查， 以监控其健康状况，如果后端服务器出现故障，ELB 会自动将传入的请求分发到健康的后端服务器，确保服务连续性。

D. For services that require high service availability, ELB can distribute traffic across AZs, lf an AZ becomes faulty, ELB distributes the traffic to backend servers in other AZs that are running properly
D. 对于需要高服务可用性的服务，ELB 可以跨 AZ 分配流量，如果某个 AZ 出现故障，ELB 会将流量分配到其他运行正常的可用区的后端服务器

11. What scaling policies does Huawei cloud Auto Scaling support
华为云弹性伸缩支持哪些伸缩策略

A. Alarm-based policies
A. 基于告警的策略

B. Scheduled policies
B. 预定政策

C. Periodic policies
C. 定期政策

D. Preset policies
D. 预设策略

12. VMALL adopted an active-active disaster recovery (DR) solution. Which of the following recovery measures are correct
VMALL 采用了主动-主动容灾（DR）方案。以下哪项恢复措施是正确的

A. lf all web servers in AZ1 fail, you can modify the Domain Name Service (DNs) configuration to transmit data to webservers in AZ2.
A. 如果 AZ1 中的所有 Web 服务器都出现故障，您可以修改域名服务（DNS）配置以将数据传输到 AZ2 中的 Web 服务器。

B. lf there are backend servers fail the health check, you can direct traffic to other nodes and remove the faulty nodes from the backend server group.
B. 如果有后端服务器未通过健康检查，您可以将流量引导至其他节点，并将故障节点从后端服务器组中移除。

C. lf a primary node becomes unavailable, GaussDB(for MySQL) automatically fails over to a read replica
C. 如果主节点不可用，GaussDB（for MySQL）会自动故障转移到只读副本

D. lf AZ1 fails, you can use ELB to direct all the traffic to AZ2 and use Auto Scaling for elastic scaling
D. 如果 AZ1 失败，您可以使用 ELB 将所有流量定向到 AZ2，并使用 Auto Scaling 进行弹性伸缩

13. Which of the following statements are true about Resource formation Service (RFS) rollback options for a stack that could not be created are true?
关于无法创建的堆栈的资源形成服务（RFS）回滚选项，以下哪项陈述是正确的？

A. Rollback is performed automatically by the system if it was enabled
答：如果启用了回滚，则系统会自动执行回滚

B. Manual rollback is required.
B. 需要手动回滚。

C. Users can enable rollback setting to clear resources and prevent conflicts caused by template adjustment and redeployment.
C. 用户可以启用回滚设置，清除资源，防止模板调整和重新部署导致的冲突。

D. The original template will be locked and users must create a template and deploy services again
D. 原始模板将被锁定，用户必须创建模板并重新部署服务

14. Which of the following are features of Huawei cloud MetaStudio?
华为云 MetaStudio 的特点如下？

A. supports virtual livestreaming, including content collection, virtual human control and rendering, and content distribution
A. 支持虚拟直播，包括内容采集、虚拟人控制与渲染、内容分发

B. Supports video shooting and production in different scenarios, such as real persons in virtual scenes, virtual persons in real-life scenes, and virtual persons in virtual scenes
B、支持不同场景下的视频拍摄和制作，如虚拟场景中的真人、现实场景中的虚拟人、虚拟场景中的虚拟人

C. Provides a 3D enterprise space production pipeline
C. 提供 3D 企业空间生产流水线

D. Supports one-to-many online interactions in real time during virtual livestreaming
D. 支持虚拟直播时一对多实时在线互动

15. A company plans to deploy its online shopping service system on Huawei Cloud. When designing the cloud service architecture, which of the following aspects should be analyzed?
 某公司计划在华为云上部署其网购服务系统。 在设计云服务架构时， 应分析以下哪些方面？

A. Whether system performance meets service requirements
系统性能是否满足服务要求

B. Whether system security meets the requirements of relevant regulations
B. 系统安全是否符合相关法规要求

C. Whether system reliability meets service requirements
C. 系统可靠性是否满足服务要求

D. Whether performance and quantity of the system hardware devices meet the system requirements
D、 系统硬件设备的性能和数量是否满足系统要求