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
Names of the files in each OSS bucket must be unique Also, they can be renamed.
- A . True
- B . False
B
Explanation:
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.
Reference: Object Storage Service:Rename objects – Alibaba Cloud
Object Storage Service:Rename objects – Alibaba Cloud
Recipe OSS: How to rename an object? (Alibaba Cloud)
When using Alibaba Cloud SLB to forward layer 7 (HTTP) service requests, SLB will replace the IP address in the HTTP header file to forward requests.
Therefore, the source IP address that can be seen on the backend ECS instance is the IP address of SLB instead of the client’s real IP address.
- A . TRUE
- B . FALSE
Which of the following statements is NOT correct, when comparing RDS with a self-built database? (Single answer)
- A . 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.
- B . 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.
- C . Self-built database support quick deployment and elastic scaling.
- D . RDS requires no O&M while self-built database require a dedicated DBA for maintenance
which results in high HR costs.
The maximum number of connections for an RDS instance depends on ____________.
- A . Memory size
- B . CPU utilization rate
- C . Disk capacity
- D . Network traffic
A
Explanation:
The maximum number of connections to an RDS instance primarily depends on the memory size of the instance. Higher memory capacity allows for more simultaneous connections, as memory is a key resource in managing and maintaining connections. Alibaba Cloud RDS scales the connection limit based on the instance’s memory allocation to ensure stable database performance.
Reference: Alibaba Cloud RDS Specifications
Which of the following statements is wrong about changing the specification of an RDS instance?
- A . The specification of an RDS instance can be upgraded as needed
- B . The service will not be interrupted during upgrade/downgrade
- C . The database version cannot be downgraded
- D . MySQL 5.1 can be directly upgraded to MySQL 5.6
B
Explanation:
When changing the specifications of an RDS instance, service interruptions can occur during some upgrade and downgrade operations, depending on the RDS instance type and the complexity of the change. While upgrades are generally supported, certain modifications may result in brief downtime as the system reconfigures resources. This is contrary to option
B. Additionally, database version downgrades are restricted, and MySQL 5.1 can indeed be upgraded directly to MySQL 5.6 in Alibaba
Cloud RDS.
Reference: Alibaba Cloud RDS Specifications Upgrade Guide
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.
The following steps ________________ are required when a user uses Alibaba Cloud CDN. (Choose
two.)
- A . Refresh cache manually
- B . Add domain name into "CDN Domain Name List"
- C . Modify domain name resolution and direct it to the given CNAME
- D . Activate CDN resource monitoring
B, C
Explanation:
To use Alibaba Cloud CDN, you must add your domain to the "CDN Domain Name List" and then modify the domain’s DNS settings to point to the CNAME provided by Alibaba Cloud. Manual cache refresh (option A) is optional and not a necessary step for initial setup, and while monitoring is useful, it is not required for CDN operation, so option D is also not essential.
Reference: Alibaba Cloud CDN Setup Guide
User A is the system administrator of a company, who often takes business trips to Shanghai. Each time he remotely logs on to the server in Shanghai, an alert is reported, prompting "Someone is remotely logging on to the server. Please pay attention to your server security ".
Which of the following methods can be used to quickly and automatically resolve this problem? (Single answer)
- A . Open a ticket immediately to consult Alibaba Cloud engineers.
- B . Ask the company leaders for help.
- C . Log on to Alibaba Cloud console, and add a frequent logon location to the Security Center configuration item.
- D . Call a friend for help, who is a famous hacker in the industry.
Distributed computing breaks down a task into many small parts, then assigns these parts to multiple computing nodes, and eventually puts these computing results together to form the final outcome.
- A . TRUE
- B . FALSE
A
Explanation:
This is a correct description of distributed computing, where a large task is divided into smaller tasks, distributed across multiple nodes, and later recombined to produce the final result. Distributed computing is widely used to handle large-scale computations and improve processing efficiency.
Reference: Distributed Computing Overview
When the "’Obtain the Visitor’s Real IP Address" function is enabled in Alibaba Cloud SLB For layer 7 services, you can obtain the real IP addresses of visitors through the______________field in HTTP header
- A . Connection
- B . Authorization
- C . Etag
- D . X-Forwarded-For
D
Explanation:
The X-Forwarded-For field in HTTP header is used to identify the originating IP address of a client connecting to a web server through an HTTP proxy or a load balancer. When the “Obtain the Visitor’s Real IP Address” function is enabled in Alibaba Cloud SLB, the SLB instance adds the X-Forwarded-For field to the HTTP header of each request and forwards the request to the backend server. The
backend server can then obtain the real IP address of the visitor from the X-Forwarded-For field 1.
The format of the X-Forwarded-For field is as follows:
X-Forwarded-For: client, proxy1, proxy2
where the value is a comma+space separated list of IP addresses, the left-most being the original client, and each successive proxy that passed the request adding the IP address where it received the request from. In this example, the request passed through proxy1, proxy2, and then the SLB instance (proxy3).2
Reference: Obtain client IP addresses – Server Load Balancer – Alibaba Cloud, X-Forwarded-For – MDN Web Docs
OSS supports multi-part uploading for large files, namely dividing a large file into multiple parts and uploading them in order. This function is suitable for scenarios such as uploading large files or uploading files with poor connectivity.
After completing all the multi-part uploading tasks, if you forget to invoke the "Complete Multipart Upload" interface, there will be fragment files left in OSS, occupying bucket storage space-To facilitate deleting those files, OSS provides the________function.
- A . OpenAPI batch deletion
- B . Online batch deletion
- C . Bucket clearing
- D . Fragment management
D
Explanation:
OSS provides the fragment management function to help you delete the fragment files left in OSS after you forget to invoke the “Complete Multipart Upload” interface. Fragment management allows you to list, delete, or restore the fragment files in a bucket. You can use the OSS console, OSS SDKs, or OSS APIs to perform fragment management operations. OpenAPI batch deletion, online batch deletion, and bucket clearing are not the functions provided by OSS to delete the fragment files.