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 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.
Alibaba Cloud CDN can directly accelerate an IP address. The accelerated website does not need to bind a domain name.
- A . TRUE
- B . FALSE
B
Explanation:
Alibaba Cloud CDN requires a domain name to function, as it uses DNS resolution to direct requests to the nearest edge nodes. CDN cannot directly accelerate an IP address without a domain name, so the statement is false.
Reference: Alibaba Cloud CDN Domain Configuration
Alibaba Cloud OSS is a cloud storage service that features massive capacity, outstanding security low costs, and high reliability.
When talking about information security, the advantages of using OSS are_____. (Number of correct answers: 2)
- A . Supports Anti-DDoS, automatic traffic cleaning, and "black holing" without any extra charges.
- B . Offers a multi-user isolation mechanism directly, no need to leverage RAM.
- C . offers Server Side Encryption function for data security protection in OSS
- D . provides Primary/Secondary region configuration based data reliability protection.
The RDS master instance and read-only instance can be in different regions.
- A . TRUE
- B . FALSE
B
Explanation:
In Alibaba Cloud RDS, both the master and read-only instances must reside within the same region. Cross-region replication for RDS read-only instances is not supported, as RDS read replicas are designed for high availability and load balancing within a single region.
Reference: Alibaba Cloud RDS Region and Availability Zone
Two modes are available for deleting scaling groups in Auto Scaling: ForceDelete mode and non-ForceDelete mode.
Which of the following conditions must be met in non-ForceDelete mode? (Choose two.)
- A . No scaling activities are ongoing in the scaling group
- B . No ECS instances exist in the scaling group
- C . No scheduled tasks and event-triggered tasks exist in the scaling group
- D . The scaling group is not working in conjunction with SLB and ApsaraDB for RDS
A, B
Explanation:
In non-ForceDelete mode, a scaling group can only be deleted if no ECS instances exist within it and no scaling activities are currently in progress. This ensures that resources are properly released and no scaling operations are disrupted during deletion. Scheduled and event-triggered tasks (option C) and SLB/RDS integrations (option D) do not need to be removed to delete the scaling group in non-ForceDelete mode.
Reference: Alibaba Cloud Auto Scaling Group Deletion
A user builds an ECS + SLB -t RDS business application architecture on the cloud, and uses Auto Scaling to flexibly scale-in and scale out ECS instances. For business reasons, you need to use Apsara DB for Redis as a cache for hot data storage to ensure high-speed data access for applications. However, the Auto Scaling Scaling Group cannot be associated with a Redis instance directly, you need to manually configure ECS instances to be added to or removed from the Redis whitelist, which is time-consuming, laborious and inefficient.
If you are an Alibaba Cloud architect, which 2 Auto Scaling and OOS features would you recommend, in order to automatically add and remove instances from the Redis whitelist?
- A . Auto-Scaling lifecycle hooks
- B . OOS Template
- C . MNS
- D . Instance launch template
Company A constructed a sales management platform using three Elastic Compute Service (ECS) instances. One of the instances runs MySQL, and is used as the database server. The other two
instances are used as Web servers After some time, the number of employees in Company A dramatically increases, leading to higher sales volumes At the same time, the platform response speed is gradually decreasing too.
According to the report from CloudMonitor, the average CPU utilization rate of the two Web servers exceeds 70%, and database load
reaches 75% Company A can select Alibaba Cloud_________ services.to cope with the issue and
optimize the performance. (Number of correct answers: 2)
- A . Import database data into Object Storage Service (OSS) to share the storage pressure on the platform
- B . Incorporate Server Load Balancer (SLB) and add additional ECS instances to relieve the load on existing ECS instances
- C . Use Content Delivery Network (CDN) to enhance content loading speed
- D . Replace the self-built MySQL database with ApsaraDB for RDS to obtain better database performance, and utilize RDS read-only instances to handle read-only requests
BD
Explanation:
Option B is correct because using Server Load Balancer (SLB) and adding additional ECS instances can help to distribute the traffic among multiple servers and improve the availability and scalability of the platform. SLB can also provide health checks and fault tolerance for the ECS instances1
Option D is correct because replacing the self-built MySQL database with ApsaraDB for RDS can provide better database performance, security, and reliability. ApsaraDB for RDS is a fully managed cloud database service that supports MySQL, SQL Server, PostgreSQL, and other engines. It can automatically handle tasks such as backup, recovery, monitoring, and patching. Using RDS read-only instances can also handle read-only requests and reduce the load on the primary database2
Option A is incorrect because importing database data into Object Storage Service (OSS) will not share the storage pressure on the platform. OSS is a cloud storage service that provides high durability, availability, and scalability for storing unstructured data such as images, videos, and documents. It is not suitable for storing structured data such as database tables. Moreover, importing data into OSS will incur additional costs and latency3
Option C is incorrect because using Content Delivery Network (CDN) will not enhance the content
loading speed of the platform. CDN is a distributed network that delivers content to users based on their geographic locations, the origin of the content, and the content delivery server. It is mainly used to accelerate the delivery of static content such as images, videos, and scripts. It is not effective for dynamic content such as database queries and transactions4
Reference: 1: Server Load Balancer – Alibaba Cloud
2: ApsaraDB for RDS – Alibaba Cloud
3: Object Storage Service – Alibaba Cloud
4: Content Delivery Network – Alibaba Cloud
Alibaba Cloud Content Delivery Network (CDN) is a distributed network that is built and overlaid on the bearer network. Moreover, it is composed of edge node server clusters distributed across different regions.
It replaces the traditional data transmission mode, which is centered on Web servers. If a user finds that the CDN cache hit rate is low while using the CDN, the possible reasons are. (Number of correct answers: 3)
- A . When websites have low access traffic and the files are not popular enough, the CDN will receive fewer requests and result in lower cache hit rate.
- B . If the cache configuration is inappropriate (ex. overly short Cache Expiry Time for popular files), this may result in frequent back-to-source operations.
- C . Insufficient bandwidth was selected when enabling the CDN service, making the service capacity reaches the limit.
- D . If the origin site has a largo number of dynamic resources or mostly non-cashback content, this can also lead to frequent back-to-source operations.
- E . Tho HTTP Header setting may cause the cache to fail. In this case, users must check the origin site’s “Cacho-Control” and “Expires” settings.
When using Auto Scaling, you want to add/remove ECS instances based on the utilization rate of computing resources. For example, you want to remove one ECS instance when the average CPU utilization rate is not greater than 30%. In this case, you need to set the scaling rule "Remove 1 ECS instance" and _____to finish the configuration. (Single answer)
- A . Create a scaling configuration
- B . Configure the attributes of the scaling group
- C . Create a Scheduled task
- D . Create an Event-triggered task
Availability Zones refer to data centers in the same region with independent power grids and networks.
Which of the following statements are true for Zones? (Number of correct answers:3)
- A . if the disaster recovery requirements of your applications are demanding it is recommended that you deploy ECS instances in the same Region and Zone.
- B . The network latency between inter-Zone ECS instances is lower.
- C . Intranet communication is available between different zones in the same region, and datacenter level fault isolation can be achieved between Zones.
- D . whether you place ECS instances in the same Zone depends on the requirements on disaster recovery and network latency.
- E . if your applications require a low network latency between ECS instances, it is recommended that you create ECS instances in different Zones.
An enterprise built an isolated network environment by using Alibaba Cloud VPC and connected this VPC to a traditional data center via VPN. This allows the enterprise to seamlessly migrate data from its traditional data center to Alibaba Cloud.
Now they need to receive user requests from the Internet and assign these requests to multiple ECS instances inside the VPC by using SLB.
Which of the following statements are correct? (Choose two.)
- A . They can create an SLB instance in the VPC, and mount ECS instances within the VPC to this SLB instance. Then, use a jump server to receive external requests and direct these requests to SLB to forward them to backend ECS instances.
- B . They can create an SLB instance with an Internet IP address, and mount ECS instances within the VPC to this SLB instance. The public SLB will be used to receive external requests. As a result, requests from the Internet will be transferred to backend ECS instances within the VPC.
- C . They can create an SLB instance in the VPC, and mount ECS instances within the VPC to this SLB instance. Then, bind an EIP to the SLB, so that this SLB instance can receive requests from the Internet and assign these requests to the backend ECS instances.
- D . They can create an SLB instance with an Internet IP address, and mount ECS instances within the VPC and servers of the traditional data center to this SLB instance. The public SLB will be used to receive external requests. As a result, requests from the Internet will be transferred to backend ECS instances within the VPC and servers of the traditional data center.
B, C
Explanation:
To enable Internet access for ECS instances in a VPC, Alibaba Cloud users can use a public SLB with an Internet IP address (Option B) or an SLB with an Elastic IP (EIP) attached (Option C). Both methods allow the SLB instance to receive external requests and forward them to ECS instances within the VPC. Option A is incorrect because it would require a more complex setup without direct Internet access. Option D is incorrect as SLB does not support directly mounting servers from an on-premises data center.
Reference: Alibaba Cloud SLB and VPC Integration