Alibaba ACP-Cloud1 ACP Cloud Computing Certification Exam Practice Test

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Total 176 questions
Question 1

RDS for MySQL supports cross-zone migration within the same region.



Answer : A

Alibaba Cloud RDS for MySQL supports cross-zone migration within the same region, allowing users to move their RDS instances to different availability zones if needed. This feature helps enhance disaster recovery and flexibility in resource allocation.


Question 2

Cloud computing adopts a common model in distributed systems, distributing computing tasks to a resource pool comprising many computers. This elastic use of the resource pool allows applications to obtain computing capacity, storage space, and message services as needed. Which of the following statements are correct about the advantages of public cloud computing over traditional IDC? (Choose four.)



Answer : A, B, C, D

Public cloud computing offers advantages such as rapid deployment, increased flexibility and scalability, reduced costs associated with infrastructure, and minimized management and maintenance efforts. Option E is incorrect, as cloud providers typically manage the underlying infrastructure, and users do not have full control over it. Cloud computing abstracts the infrastructure layer, allowing users to focus on applications without needing to manage physical resources.


Question 3

After creating an RDS for MySQL read-only instance, which of the following CAN NOT be performed by the read-only instance in RDS management console?



Answer : D

A read-only RDS instance is a replica of the primary RDS instance that can handle read requests and increase the read capability of the database system. A read-only RDS instance inherits the network type (intranet or internet) of the primary RDS instance and cannot switch between them. Therefore, option D is the correct answer. Reference: Create a read-only ApsaraDB RDS for MySQL instance, Instance types for read-only ApsaraDB RDS instances


Question 4

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.



Answer : B

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.


Question 5

There are two types of Alibaba Cloud SLB: private network SLB and public network SLB. You can freely choose between private network SLB and public network SLB based on your business scenarios. Alibaba Cloud will assign a private or public IP address to your SLB according to your choice.



Answer : A

Alibaba Cloud SLB allows users to select between private and public SLB based on business needs. A public SLB provides a public IP address for Internet-facing applications, while a private SLB provides a private IP address for internal applications within a VPC. Alibaba Cloud assigns the appropriate IP type automatically based on the user's selection of SLB type.


Question 6

A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group. They set the "Minimum number of instances" to 6 and the "Maximum number of instances" to 8. After correctly configuring scaling settings, the customer adds a scaling rule ''Adjust to 10 ECS instances'' and creates a scheduled task based on this rule. Then, the customer checks the scaling group and sees it already contains 6 valid ECS instances. They then enable this scaling group immediately. How many ECS instances will be in the scaling group when the scheduled task is activated once?



Answer : C

Even though the scaling rule is set to 'Adjust to 10 ECS instances,' the maximum instance limit set for the scaling group is 8. Thus, when the scheduled task is triggered, Auto Scaling will increase the number of instances up to the maximum allowed, which is 8. Therefore, the scaling group will contain 8 instances, not 10, as it adheres to the defined maximum limit.


Question 7

Which of the following statements is NOT correct, when comparing RDS with a self-built database?



Answer : A

The statement A is not correct, because self-built databases do not support quick deployment and elastic scaling. On the contrary, self-built databases require hardware procurement, data center hosting, and machine deployment, which can be time consuming and costly. Moreover, self-built databases have low resource utilization, as they have to accommodate peak traffic requirements, while RDS can scale elastically according to the actual demand. Reference: = ApsaraDB for RDS vs. Self-built Databases - Alibaba Cloud


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