Most Recent Alibaba ACP-Cloud1 Exam Questions & Answers

Prepare for the Alibaba ACP Cloud Computing Certification Exam exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.

QA4Exam focus on the latest syllabus and exam objectives, our practice Q&A are designed to help you identify key topics and solidify your understanding. By focusing on the core curriculum, These Questions & Answers helps you cover all the essential topics, ensuring you're well-prepared for every section of the exam. Each question comes with a detailed explanation, offering valuable insights and helping you to learn from your mistakes. Whether you're looking to assess your progress or dive deeper into complex topics, our updated Q&A will provide the support you need to confidently approach the Alibaba ACP-Cloud1 exam and achieve success.

The questions for ACP-Cloud1 were last updated on Nov 22, 2024.

Viewing page 1 out of 35 pages.
Viewing questions 1-5 out of 176 questions

Get All 176 Questions & Answers

Question No. 1

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 ___________.

AStateless and horizontally scalable

BStateful

CStateless and idempotent

DAll data is locally stored on ECS instance disks

Show Answer

Correct Answer: A

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.

Question No. 2

Alibaba Cloud VPC utilizes tunneling technology. Each VPC has a unique tunnel ID, and a tunnel ID corresponds to a virtual network. As a result, VPC can achieve a similar isolation effect as that of a traditional VLAN.

ATRUE

BFALSE

Show Answer

Correct Answer: A

Alibaba Cloud VPC uses tunneling technology with unique tunnel IDs to create isolated virtual networks that offer similar isolation capabilities as VLANs in traditional networks. This allows each VPC to function as an independent, secure network environment within the cloud, ensuring traffic separation and resource isolation.

Question No. 3

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

ASelf-built database support quick deployment and elastic scaling.

BRDS requires no O&M while self-built database require a dedicated DBA for maintenance, which results in high HR costs.

CRDS 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.

DRDS 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.

Show Answer

Correct 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

Question No. 4

When using Auto Scaling, you want to add or 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.

ACreate a scaling configuration

BConfigure the attributes of the scaling group

CCreate a scheduled task

DCreate an event-triggered task

Show Answer

Correct Answer: D

An event-triggered task is necessary when creating scaling rules based on specific metrics such as CPU utilization. This allows Auto Scaling to monitor real-time metrics and trigger scaling actions when thresholds are met. Scheduled tasks, by contrast, are based on specific times rather than performance metrics.

Question No. 5

You are designing a solution for a startup company, the proposed solution is like this You suggest they use ECS instances to process requests from mobile App clients, and use SLB to distribute data traffic and ensure the load across each backend ECS instance is balanced.

Moreover to deal with volatile fluctuations in business volume (page views are much higher on the weekends), you also suggest they use Auto Scaling to dynamically increase or reduce computing resources.

The company is satisfied with the solution you proposed. However, they have one concern that when removing an idle instance from the scaling group: if Auto Scaling shuts the instance down directly, the service running on that instance will be abruptly terminated, resulting in poor user experience.

In order to eliminate your customer's concern, which of the following solutions should you recommend them?

AFind the ECS instance that is going to be removed from the backend server pool of the SLB instancer and automatically set the weight of this ECS instance to 0. This instance will not be assigned with new requests, and will be automatically removed from the backend server pool after existing tasks are completed.

BFirst, insert a script into the image for creating the ECS instance Second, make the script run automatically when the operating system in this ECS instances is about to shut down. This script contains the processing logic that can ensure the instance finish all the remaining tasks before shutting down.

CFind the ECS instance that is going to be removed from the backend server pool of the SLB instance, and manually remove this instance from the backend server pool Applications running on this ECS instance will normally return results, but this instance will not be assigned with new requests.

DUse the Lifecycle Hook function embedded m Auto Scaling Define a suitable timeout and a web hook to do the necessary work before the instance is removed.

Show Answer

Correct Answer: D

According to the Alibaba Cloud Auto Scaling documentation1, the Lifecycle Hook feature allows you to perform custom operations on instances that are added to or removed from a scaling group. You can define a lifecycle hook to specify a timeout period and a web hook URL. When an instance is about to be removed, Auto Scaling sends a notification to the web hook URL and waits for a response. During the timeout period, you can perform the necessary operations on the instance, such as gracefully shutting down the service, backing up the data, or sending a custom notification. After the operations are completed, you can send a response to the web hook URL to confirm the removal of the instance. This way, you can ensure that the instance is removed without affecting the user experience or causing data loss. Therefore, option D is the best solution to eliminate the customer's concern. Reference: Lifecycle hooks and Alibaba Cloud Auto Scaling.

Unlock All Questions for Alibaba ACP-Cloud1 Exam

Full Exam Access, Actual Exam Questions, Validated Answers, Anytime Anywhere, No Download Limits, No Practice Limits

Get All 176 Questions & Answers