Alibaba Cloud ACP-Cloud1 Practice Exams
Last updated on Oct 22,2026- Exam Code: ACP-Cloud1
- Exam Name: ACP Cloud Computing Certification
- Certification Provider: Alibaba Cloud
- Latest update: Oct 22,2026
Alibaba Cloud object storage (Object Storage Service, OSS for short) provides massive, secured, relatively low-cost, and highly reliable cloud storage service. Users can upload and download files to/from OSS via WEB console or API.
- A . TRUE
- B . FALSE
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 . You can upgrade the CPU, memory, and bandwidth.
- B . Upgrading the configuration of the ECS instance requires no’ redeployment or data migration.
- C . Upgrading network bandwidth does not require the ECS instance to restart.
- D . You can change an instance’s operating system without rebooting.
D
Explanation:
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.
Reference: ECS User Guide: Replace the system disk (non-public image) and ECS User Guide: Replace the system disk (public image)
To meet business requirements, a user requires that the backend server of an SLB instance include a primary ECS instance and a secondary ECS instance. When the primary instance is working properly, the traffic is only forwarded to the primary ECS, when the primary instance is down, traffic is switched to the standby instance. In this case, you can create an active/standby server group on the backend of the SLB instance Which kind of listener supports this feature? (Number of correct answers: 2)
- A . HTTPS
- B . HTTP
- C . UDP
- D . TCP
AD
Explanation:
Active/standby server groups are a feature of Server Load Balancer (SLB) that allows you to configure a primary ECS instance and a secondary ECS instance for the backend of an SLB instance 1. When the primary instance is working properly, the traffic is only forwarded to the primary ECS. When the primary instance is down, traffic is switched to the standby instance 1. This feature is supported by TCP and HTTPS listeners, but not by HTTP and UDP listeners 1. TCP and HTTPS listeners support session persistence, which ensures that requests from the same client are always forwarded to the same backend server2. HTTP and UDP listeners do not support session persistence, and they use round-robin or weighted round-robin algorithms to distribute traffic among the backend servers2.
Reference: 1: Create an active/standby server group 2: [Configure a listener]
RDS accounts can be used to connect with the databases created on a given RDS instance. Each account can be bound with multiple databases. Yet, the read/write permissions of each database can only be assigned to one RDS account
- A . True
- B . False
B
Explanation:
RDS accounts can be used to connect with the databases created on a given RDS instance. Each
account can be bound with multiple databases. However, the read/write permissions of each database can be assigned to multiple RDS accounts, not just one. For example, you can create an account with read-only permission for all databases, and another account with read-write permission for a specific database. This way, you can manage the access control of your databases more flexibly and securely.
Reference: Introduction to ApsaraDB RDS – Alibaba Cloud Document Center – User Management – Account Permissions
Which of the following statements about file uploading to OSS is NOT correct? (Single answer)
- A . All file uploading method provided by Alibaba Cloud OSS service will support resuming from break point.
- B . If you are uploading some small files(<1m), you can choose PUT method to finish uploading in one HTTP request.
- C . if you are using OSs to store some log files which are continuously being updated it’s better to choose APPEND method instead of overwriting or generating new versions.
- D . If you need to upload very large files it’s better to use multi-part uploading to get the capability of resuming from break point.
Alibaba Cloud Object Storage Service (OSS) provides multiple file uploading modes for different scenarios, which are___________.
(Number of correct answers: 2)
- A . Direct upload from the OSS management console no matter how large the file is
- B . Uploading using the API
- C . Directly copying to/from OSS using portable disks
- D . Upload using the SDK
BD
Explanation:
Alibaba Cloud Object Storage Service (OSS) is a cloud storage service that allows you to store, retrieve, and manage data in the cloud. OSS provides multiple file uploading modes for different scenarios, such as simple upload, multipart upload, append upload, resumable upload, and cross-region replication. These uploading modes can be implemented by using the API or the SDK provided by OSS. Therefore, options B and D are the correct answers. Option A is not correct because the OSS management console only supports simple upload for files that are smaller than 5 GB. Option C is not correct because OSS does not support directly copying to/from OSS using portable disks.
Reference: Object Storage Service:Simple upload, Object Storage Service:Multipart upload, Object Storage Service:OSS tools
If you need to make the ECS instances under three VSwitches (inside the same Alibaba Cloud VPC) cannot access to each other, meanwhile, not affecting other Intranet connections in this VPC, what should you do? (Single answer)
- A . Create three Security Groups, which respectively include all ECS instances under these three VSwitches. First, configure each of these Security Groups to allow access of all CIDR Blocks. Second, configure each of these Security Groups to forbidden the access of CIDR blocks of the other two VSwitches (given this rule with a higher priority than the previous rule).
- B . Create three Security Groups, which respectively include all ECS instances under these three VSwitches. First, configure each of these Security Groups to allow access of all CIDR Blocks. Second, configure each of these Security Croups to forbidden the access of CIDR blocks of the other two VSwitches (given this rule with a lower priority than the previous rule).
- C . Create one Security Group, which include all ECS instances under these three VSwitches. First, configure each of these Security Groups to allow access of all CIDR Blocks. Second, configure each of these Security Groups to forbidden the access of CIDR blocks of the other two VSwitches (given this rule with a higher priority than the previous rule).
- D . None of these answers are correct.
Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. This service can automatically adjust ___________.
- A . Stateless and horizontally scalable
- B . Stateful
- C . Stateless and idempotent
- D . All data is locally stored on ECS instance disks
A
Explanation:
Auto Scaling in Alibaba Cloud is designed to automatically adjust resources, such as ECS instances, based on the demand and scaling policies. This works best with applications that are stateless and horizontally scalable, as these applications do not rely on data stored locally on an instance, allowing them to scale in and out without affecting performance or user experience. Statelessness and horizontal scalability allow Auto Scaling to manage ECS instances efficiently without manual intervention.
Reference: Alibaba Cloud Auto Scaling Best Practices
in Alibaba Cloud 0bject Storage, users want to use graphical tools to upload and download object files.
Which tools can they use? (Single answer)
- A . ossbrowser
- B . ossutil
- C . osscmd
- D . ossfs
Which of the following statements is most accurate about the Data Transmission Service (DTS) database migration function?
- A . Supports database schema replication between instances.
- B . Supports warning when source and destination has some unresolved conflict found.
- C . Supports all of the above functions.
- D . Supports migrating MySQL databases from external sources.
C
Explanation:
Data Transmission Service (DTS) is a real-time data streaming service that supports data transmission between data sources such as relational databases, NoSQL, and Big Data (OLAP). DTS supports data migration, data synchronization, and change data subscription scenarios. DTS can migrate your data to and from most of the widely used commercial and open source databases. It supports homogeneous migrations such as MySQL to MySQL, as well as heterogeneous migrations between different database platforms, such as Oracle to MySQL. Migrations can be from on-premises databases to RDS or ECS, databases running on ECS to RDS, or vice versa, as well as from one RDS database to another RDS database. DTS also supports database schema replication between instances, which means that DTS can automatically create the same schema as the source database in the target database. DTS also supports warning when source and destination has some unresolved conflict found, such as data type mismatch, primary key conflict, or foreign key constraint violation. DTS can help you resolve these conflicts by providing suggestions or allowing you to modify the data mapping rules. Therefore, the correct answer is
C. Supports all of the above functions.
Reference: 1: Data Transmission Service – Alibaba Cloud
2: What is Data Transmission Service? – Alibaba Cloud
3: Database Migration – AlibabaCloud
4: Cloud Migration without Stopping Services: Alibaba Cloud DTS