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
A new media company uses a mobile app to provide news and information services. They utilize Auto Scaling to add/reduce ECS instances dynamically to address service traffic spikes.
Based on the estimation of their service and technical personnel the company thinks they require 10 ECS instances during idle hours and 10 to 20 ECS instances (dynamically adjusted) during some busy hours, which are normally from 07:30 to 09:00 and from 18:30 to 20:00 In the scaling group; they set the "Minimum number of instances" to 10 and "Maximum number of instances" to 20.
To simplify deployment tasks and save costs, which of the following scaling modes should they choose?
- A . Healthy mode
- B . Scheduled mode
- C . Fixed quantity mode
- D . Event-triggered mode
B
Explanation:
According to the Alibaba Cloud Auto Scaling documentation, scheduled mode allows you to configure the scheduled tasks by adding or removing ECS instances for a fixed time. This mode is suitable for scenarios where the service traffic spikes are predictable and periodic. For example, a new media company can use scheduled mode to add or reduce ECS instances dynamically to address service traffic spikes during some busy hours, such as from 07:30 to 09:00 and from 18:30 to 20:00. This mode can help simplify deployment tasks and save costs by avoiding unnecessary scaling activities.
Reference: How Auto Scaling works – Auto Scaling – Alibaba Cloud Documentation Center.
Alibaba Cloud ECS provides multiple instance types to meet the needs of different business scenarios. A medium-sized enterprise user wants to use two ECS instances, one to deploy a single Tomcat service
and the other one to deploy Memcache.
Which of the following configurations is most recommended?
- A . Tomcat: 4 cores, 4G,
Memcache: 2 cores, 8G - B . Tomcat: 4 cores,4G,
Memcache: 2 cores,16G - C . Tomcat: 4 cores, 8G,
Memcache: 2 cores, 8G - D . Tomcat: 4 coros,8G,
Memcache: 2 cores,16G
When distributing loads to multiple ECS instances with an Alibaba Cloud Server Load Balancer (SLB). you can obtain the real IP addresses of users who initiate the requests through (Number of correct answers: 2)
- A . ForLayer-7 services, SLB obtains the real IP addresses of the visitors by means of HTTP Heard: X-Forwarded-For, but the "Obtain the Visitors Real IP Address" function must be enabled first.
- B . For Layer-4 services, you can obtain the visitor’s Real lP addresses directly, without any additional settings.
- C . ForLayer-4 services, SLB obtains the real IP addresses of the visitors by means of the HTTP Header: X-Forwarded-For, but the "Obtain the Visitor’s Real IP Address" function must be enabled first.
- D . For Layer-7 services, you can obtain the visitors’ real IP addresses directly, without any additional settings.
A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group He/she sets the "Minimum number of instances" to 2 and "Maximum number of instances" to 7.
After correctly configuring scaling settings, the customer adds a scaling rule "Add 6 ECS instances", and creates a scheduled task based on this rule.
And then, the customer checks the scaling group and see it already contains 3 valid ECS instances, he/she then enables this scaling group immediately.
How many ECS instance will be added in the scaling group when the scheduled task is activated once’?
- A . 0
- B . 2
- C . 4
- D . 6
C
Explanation:
When the scheduled task is activated once, 4 ECS instances will be added in the scaling group. This is because the scaling rule “Add 6 ECS instances” will increase the number of instances in the scaling group to 9, which exceeds the maximum number of instances (7) that is set for the scaling group. Therefore, Auto Scaling will only add 4 ECS instances to reach the maximum number of instances. The remaining 2 ECS instances will not be added to avoid exceeding the quota.
Which of the following scenarios can be done using Alibaba Cloud Express Connection? (Number of correct answers: 2)
- A . Intranet communication between two VPCs under the same account in the same region
- B . Intranet communication between two VPCs in different accounts and different CIDR Blocks
- C . Intranet communication between VPCs and Smart Access Gateway in customers different branch offices
- D . Intranet communication between a VPC and servers in an external IDC
The effect of CDN is highly related to the scenario in which it is used. _______________________ is
not an applicable scenario to use CDN.
- A . Personal netdisk service having low repeated access rate
- B . Pure static enterprise website
- C . Short video delivery website
- D . Application download site
A
Explanation:
CDN is most effective for scenarios with high repetitive access, where content is frequently requested and can be cached, such as static websites, video delivery, and application download sites. In contrast, a personal netdisk service typically involves unique, private files with low repeat access rates, making CDN less effective since the content is unlikely to be accessed by multiple users frequently, thus reducing the benefit of caching.
Reference: Alibaba Cloud CDN Use Cases
Networks between subsystems should be isolated because subsystems are independently used by different departments Which of the followings should be used together to meet the company’s requirements? (Number of correct answers: 3)
- A . Enable the VPN on the bastion host (or directly use the VPN image on Alibaba Cloud Marketplace).
The administrator uses VPN encrypted communication during O&M. - B . Build an independent ECS instance as the bastion host or remote logon and O&M, and authorize the bastion host to access ECS instances running other subsystems.
- C . Use the security group function of the ECS instance, and respectively deploy ECS instances running different subsystems to independent security groups.
- D . Create multiple ECS instances in the VPC to install subsystems of different departments- Allocate only Intranet IP addresses to all ECS instances, and deploy them in the same security groups.
ABC
Explanation:
To meet the company’s security requirements, the following solutions should be used together:
When creating cloud product instances in Alibaba Cloud, you can choose the default VPC and VSwitch. The difference between non-default VPC/VSwitch and default VPC/VSwitch is that default VPC and VSwitch can only be created by Alibaba Cloud.
Which of the following statements is incorrect about default VPC?
- A . There is only one default VPC for each region
- B . Default and non-default VPCs have different constraints and operations
- C . Default VPCs are created for you by Alibaba Cloud. Any VPCs you create are non-default VPCs
- D . Default VPCs are not counted in your given VPC quota in Alibaba Cloud
D
Explanation:
Default VPCs do count toward your overall VPC quota in Alibaba Cloud, contrary to option
D. Each region has a single default VPC that is automatically created by Alibaba Cloud, and users can create additional VPCs, which are then labeled as non-default VPCs. Default VPCs also have different constraints and operational characteristics compared to user-created VPCs, such as specific configurations for ease of use in basic setups.
Reference: Alibaba Cloud VPC Documentation
Using Alibaba Cloud ECS, SLB, and Auto Scaling in combination, you can build a stable, highly efficient, and secure system at low cost. This system can transfer loads based on predefined policies, and automatically scales resources based on changes in business volume.
Which of the following statement is correct? (Single answer)
- A . An SLB instance can bind multiple Auto Scaling groups, and the scaling configurations of these scaling groups can be different
- B . An SLB instance can bind multiple Auto Scaling groups, but the scaling configurations of these scaling groups must be consistent
- C . A scaling group may correspond to multiple SLB instances, but they must be within the same region
- D . A scaling group may correspond to multiple SLB instances, but they must be within the same zone
Many of Alibaba Cloud services provide highly reliable data storage capacity. For example, Object Storage Service (OSS) promises that its data reliability is no less than 99.99999999%. This high data reliability is solely achieved by RAID 0+1 redundancy technology.
- A . TRUE
- B . FALSE