[2025年02月13日] 無料Alibaba Cloud Computing ACP-Cloud1公式認定ガイドPDFダウンロード
Alibaba Cloud ACP-Cloud1公式認定ガイドPDF
Alibaba CloudのACP-Cloud1（ACP Cloud Computing Professional）認定試験は、クラウドコンピューティングの分野での個人のスキルと知識を検証するために設計されたプロの認定です。この認定は、世界の主要なクラウドコンピューティングプロバイダーの1つであるAlibaba Cloudによって提供されています。試験は、クラウドアーキテクチャ、セキュリティ、展開、および管理など、クラウドコンピューティングに関連する幅広いトピックをカバーしています。
Alibaba Cloud ACP-Cloud1は、クラウドコンピューティングに関する知識とスキルを試験する試験です。クラウドコンピューティング分野でキャリアを追求したい専門家を対象に設計されています。この試験は、世界最大のクラウドコンピューティングプラットフォームの1つであるAlibaba Cloudプラットフォームに焦点を当てています。
Alibaba Cloudは、世界の主要なクラウドサービスプロバイダーの1つであり、企業や個人に幅広いクラウドコンピューティングソリューションを提供しています。専門家がAlibaba Cloud Servicesを効果的に利用するために必要なスキルと知識を備えていることを保証するために、同社はACP-Cloud1（ACP Cloud Computing Professional）として知られる認定プログラムを提供しています。
質問 # 80
In Alibaba Cloud Object Storage, users want to use graphical tools to upload and download object files.
Which tools can they use?
- A. osscmd
- B. ossfs
- C. ossutil
- D. ossbrowser
正解：D
解説：
The ossbrowser is a graphical tool provided by Alibaba Cloud for uploading and downloading files in OSS, offering an intuitive interface for managing objects. Other tools like ossutil and osscmd are command-line tools, while ossfs is used to mount OSS as a file system on Linux, not a graphical tool.
質問 # 81
Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies It supports adding an existing ECS instance into the scaling group but imposes certain requirements on instance region In this case, which of the following statements is true?
- A. The instance and the scaling group must be in the same region but not necessarily the same zone.
- B. Each scaling group can span up to two regions. After adding the ECS instance, the number of regions of all the ECS instances in the scaling group must be no greater than two.
- C. The instance and the scaling group can be in different regions and zones.
- D. The instance and the scaling group must be in the same region and zone.
正解：A
解説：
Explanation
According to the Alibaba Cloud documentation1, Auto Scaling is a service that automatically adjusts the number of elastic computing resources based on your business demands and policies. When the demand for computing resources increases, Auto Scaling automatically adds ECS instances to ensure sufficient computing capabilities. When the demand decreases, Auto Scaling automatically removes ECS instances to reduce costs.
Auto Scaling supports adding an existing ECS instance into the scaling group, but the instance must meet some requirements1. One of the requirements is that the instance and the scaling group must be in the same region. However, they do not have to be in the same zone. A zone is a physical area within a region that has independent power grids and networks. A region is a geographic area where Alibaba Cloud deploys its resources. Therefore, the correct answer is B.
References:
1: Auto Scaling: Automatically Adjusts Computing Resources - Alibaba Cloud
2: Introduction to Auto Scaling - Alibaba Cloud Document Center
質問 # 82
Which of the following statements is NOT correct, when comparing RDS with a self-built database?
- A. RDS requires no O&M while self-built database require a dedicated DBA for maintenance, which results in high HR costs.
- B. Self-built database support quick deployment and elastic scaling.
- C. RDS features a high availability of 99 95% while self-built databases require you to implement data protection primary-standby replication, and RAID all by yourself.
- D. RDS provides automatic backup while self-built databases require you to prepare storage space for backup copies and regularly verify that these copies can be restored.
正解：B
質問 # 83
An entrepreneur team builds a network disk application based on Alibaba Cloud Products. This application allows users to upload and download files online. Currently, all the files are stored on the data disks of ECS instances. As the service volume increases, the number of ECS instances and overall O&M costs soar. To reduce O&M costs, using the ______________ product in conjunction with ECS instances provides an ideal solution.
- A. SLB
- B. CDN
- C. ApsaraDB for RDS
- D. OSS
正解：D
解説：
Alibaba Cloud OSS (Object Storage Service) is designed for storing large volumes of unstructured data, such as files, images, and videos, making it an optimal solution for network disk applications. By migrating storage from ECS data disks to OSS, the team can offload storage tasks, reduce the number of ECS instances required, and significantly lower O&M costs. OSS also provides high scalability, reliability, and cost- effectiveness for such use cases.
質問 # 84
If you want to build a secure and isolated network environment on Alibaba Cloud; meanwhile, design your network topology and specify Intranet IP addresses or CIDR Blocks in this network environment as needed, you can choose
- A. Leased line
- B. Express Connect
- C. Auto Scaling
- D. Virtual Private Cloud (VPC)
正解：D
質問 # 85
Alibaba Cloud Content Delivery Network (CDN) is a distributed network that is built and overlaid on the bearer network. It is composed of edge node server clusters distributed across different regions.
CDN acceleration is especially suitable for scenarios where there is significant site traffic and the static resource is repeatedly used by different users. The higher the repeated access rate, the more significant the acceleration effect.
- A. FALSE
- B. TRUE
正解：B
解説：
Alibaba Cloud CDN is particularly effective for websites with high traffic and static resources that are frequently accessed by different users. In such cases, CDN caching and delivery from edge nodes greatly reduce the load on origin servers and improve access speed for end users, especially in regions closer to the edge nodes.
質問 # 86
Alibaba Cloud OSS is a cloud storage service that features massive capacity, outstanding security, low cost, and high reliability. For a website consisting of static pages, they can use OSS to host these static pages.
Meanwhile, using OSS in conjunction with ___________ product for acceleration purposes.
- A. VPC
- B. Container Service
- C. ECS
- D. CDN
正解：D
解説：
Alibaba Cloud CDN (Content Delivery Network) can be used with OSS to accelerate the delivery of static content by caching data at edge nodes closer to end-users. This combination is ideal for static websites, as CDN reduces latency and enhances the loading speed of web pages hosted on OSS. By serving content from multiple distributed nodes, CDN provides users with faster, more efficient access to static resources.
質問 # 87
Object Storage Service (OSS) supports sub accounts, and you can allocate access permissions to different buckets for each sub account.
- A. True
- B. False
正解：B
質問 # 88
Alibaba Cloud Server Load Balancer (SLB) provides services for distributing traffic among multiple ECS instances SLB can expand the application system's service capacity through traffic distribution, and improve the system's availability by eliminating SPoFs (Single Points of Failure). Which of the following statements are correct? (Number of correct answers; 2)
- A. SLB provides a function to automatically synchronize data among backend ECS instances using rsync remote synchronization.
- B. One of SLB's features is the Health Check. If some of the backend ECS instances are down, whereas other backend ECS instances can still provide services, then the system can continue to work normally.
- C. When recreating an SLB instance that has an Internet IP address, a new Internet IP address will be assigned to the SLB instance.
- D. Before using SLB to provide external services, make sure that you have installed and correctly configured the SLB agent on all of the backend ECS instances.
正解：A、B
質問 # 89
The Alibaba Cloud CDN can directly accelerate access to the files stored in OSS and reduce OSS traffic costs.
- A. False
- B. True
正解：B
解説：
Explanation
The Alibaba Cloud CDN can directly accelerate access to the files stored in OSS and reduce OSS traffic costs.
Alibaba Cloud CDN is a global network of points of presence (POPs) that are distributed across the globe.
Alibaba Cloud CDN serves to reduce back-to-origin traffic. This in turn prevents network congestion and ensures that content is delivered with minimal latency across regions in various use cases1. Alibaba Cloud CDN caches resources from your origin servers on POPs located across the globe. Whenever customers access your resources, the resources are served from the nearest POP instead of the origin server. This helps prevent lengthy back-to-origin requests and reduces loads on origin servers, delivering better experience to your customers and reducing back-to-origin costs1. Alibaba Cloud CDN also provides IPv6 support on some POPs1. You can use Alibaba Cloud CDN to accelerate access to Object Storage Service (OSS). If you directly access OSS resources, the access speed varies based on the region in which the buckets are located and is limited by the outbound bandwidth of OSS2. The Internet traffic cost of CDN is lower than that of OSS, and the back-to-source traffic cost from CDN to OSS is also lower than a user access to OSS directly2. Therefore, using CDN can reduce the traffic cost of OSS. References: Use Alibaba Cloud CDN to accelerate access to OSS, What is Alibaba Cloud CDN?
質問 # 90
Compared with traditional physical servers, upgrading an ECS instance is much easier. Which of the following statements about upgrading an ECS instance is false?
- A. Upgrading the configuration of the ECS instance requires no' redeployment or data migration.
- B. Upgrading network bandwidth does not require the ECS instance to restart.
- C. You can upgrade the CPU, memory, and bandwidth.
- D. You can change an instance's operating system without rebooting.
正解：D
解説：
Changing an instance's operating system requires creating a custom image or using a public image, and then replacing the system disk of the instance. This process will cause the instance to restart. Therefore, this statement is false. References: ECS User Guide: Replace the system disk (non-public image) and ECS User Guide: Replace the system disk (public image)
質問 # 91
An insurance company has more than 200,000 online orders per day on their platform. Over the past year, the platform has suffered frequent large volume DDoS attacks (exceeding 10 Gbps). Which of the following Alibaba Cloud products can the customer use to defend against this type of attack and ensure service availability?
- A. Managed Security Service
- B. Anti-DDoS Origin Basic Edition
- C. Anti-DDoS Pro or Premium Service
- D. Security Center
正解：C
解説：
For large-scale DDoS attacks exceeding 10 Gbps, Alibaba Cloud's Anti-DDoS Pro or Anti-DDoS Premium is recommended. These services provide advanced DDoS protection, ensuring high service availability during attacks by mitigating traffic before it reaches the server. Anti-DDoS Origin Basic Edition would not suffice for attacks at this volume.
質問 # 92
As a concept stem from cloud computing, cloud storage service provides on-demand storage and data services to users through a unified interface Which of the following characteristics about cloud storage are correct? (Number of correct answers: 4)
- A. Service on demand Cloud storage has a huge resources pool, users can apply for and use the resources on demand.
- B. High scalability Storage capacity can be dynamically scaled to meet the needs.
- C. Ultra-large scale: Data storage can reach TB or even PB level
- D. Transparent service: Provides the service through a single SDK
- E. Management and maintenance: To prevent emergent service termination, users need to know the underlying detail like how the data is archived in the resource pool.
- F. High reliability and availability: Provides very high reliability and availability through technologies like 3 redundant copies, automatic failure recovery, etc.
正解：A、B、D、F
質問 # 93
Names of the files in each OSS bucket must be unique Also, they can be renamed.
- A. True
- B. False
正解：B
解説：
Objects cannot be directly renamed in OSS. To rename an object in the bucket, you can copy the source object to the destination object and delete the source object. This is because the object name is part of the object URL and cannot be changed without affecting the access to the object. However, if you enable the hierarchical namespace feature for a bucket, you can rename objects in the bucket by using the OSS console or SDKs. References:
* Object Storage Service:Rename objects - Alibaba Cloud
* Object Storage Service:Rename objects - Alibaba Cloud
* Recipe OSS: How to rename an object? (Alibaba Cloud)
質問 # 94
Alibaba Cloud Object Storage Service (OSS) is a cloud storage service that features massive capacity, outstanding security, low costs, and high reliability. In an OSS bucket, all elements are stored as________.
- A. Hashes
- B. Objects
- C. Stubs
- D. Keys
正解：B
解説：
Explanation
OSS does not use a hierarchical structure for objects, but instead uses a flat structure. All elements are stored as objects in buckets. To use OSS in the same manner in which local file systems are used, you can configure Cloud Storage Gateway (CSG).
https://www.alibabacloud.com/help/doc-detail/31817.htm
The statement C is correct, because in an OSS bucket, all elements are stored as objects. An object is the basic unit of OSS storage. Each object consists of a unique key, data, and metadata. The key is the name of the object, which is used to identify the object in a bucket. The data is the content of the object, which can be any type of file, such as text, image, video, or audio. The metadata is the information about the object, such as its size, type, creation time, and custom attributes. References: = Object Storage Service:Overview - Alibaba Cloud
質問 # 95
In Auto Scaling, the cool-down time of a scaling group refers to the lockout period after a scaling activity has been executed successfully. Which of the following statements about cool-down time are true? (Choose two.)
- A. You can't skip a scaling group's cool-down time period right after a scaling activity is just finished.
- B. When multiple ECS instances are added or removed from a scaling group, the cool-down time begins only when the last instance has been added or removed from the scaling group.
- C. During the cool-down time, only the scaling activities in the same scaling group are locked.
- D. During the cool-down time of a scaling group, only the alarms from CloudMonitor can bypass the cool- down time and trigger scaling activities, whereas other scaling activities, such as manually triggered ones, will still be subject to the cool-down time.
正解：B、C
解説：
During cool-down time, scaling activities in the same scaling group are temporarily locked to avoid unnecessary scaling activities. The cool-down time begins once all ECS instances in a multi-instance scaling action are added or removed.
質問 # 96
After activating an Alibaba Cloud Elastic Compute Service (ECS) instance, you want to monitor the status of the ECS instance via Alibaba Cloud console. Therefore: you must activate and purchase Alibaba Cloud CloudMonitor service to meet this demand.
- A. True
- B. False
正解：B
解説：
You do not need to activate and purchase Alibaba Cloud CloudMonitor service to monitor the status of the ECS instance via Alibaba Cloud console. CloudMonitor is a service that monitors Alibaba Cloud resources and Internet applications. CloudMonitor provides a one-stop, out-of-the-box, and enterprise-class monitoring solution1. CloudMonitor collects monitor metrics of Alibaba Cloud resources and custom metrics and enables you to view and understand the usage of the cloud resources, and the health of your business2. CloudMonitor allows you to monitor the metrics of Alibaba Cloud services, detect the availability of websites hosted on ECS instances or carrier servers, and configure alert rules for specified metrics3. However, CloudMonitor is not a prerequisite for monitoring the status of the ECS instance via Alibaba Cloud console. You can monitor the status of the ECS instance via Alibaba Cloud console without activating and purchasing CloudMonitor service. You can view the basic information, configuration, security group, and tags of the ECS instance in the console. You can also view the CPU, memory, disk, and network usage of the ECS instance in the console. You can also use the Cloud Assistant feature to run commands on the ECS instance remotely4.
質問 # 97
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