ACA-Cloud1問題集、Alibaba Cloud実際の試験問題

質問 1

Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. Which of the following application scenarios are suitable for Auto Scaling?
(Choose three.)

A. You need to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be reduced automatically to save costs when business needs drop.

B. You need to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be added seamlessly to address traffic peaks and surges.

C. You want to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be automatically upgraded (with more Memory, more powerful CPU) when needed.

D. When an ECS instance reacts abnormally in a scaling group, Auto Scaling will create a new ECS instance to take over the computing tasks conducted by the faulty instance.

正解: A,B,D

解説: (PassTest メンバーにのみ表示されます)

質問 2

You can retrieve data directly from an ECS Image and use it right away.

A. FALSE

B. TRUE

正解: A

解説: (PassTest メンバーにのみ表示されます)

質問 3

Alibaba Cloud OSS is a cloud storage service that features massive capacity, outstanding security, low cost, and high reliability. To control the access to the files stored on OSS, OSS provides multiple access permissions for each bucket. These bucket permissions are. (Choose three.)

A. Private-read

B. Private

C. Public-read

D. Public-read-write

正解: B,C,D

解説: (PassTest メンバーにのみ表示されます)

質問 4

A company wants to migrate its system to public cloud platform and they choose Alibaba Cloud. The migration process is very important and they want to ensure that everything works right. Which of the following services can the company choose?

A. Alibaba Cloud Product Operation Training

B. Alibaba Cloud Architecture Design Training

C. Event Management Service

D. Aftersales Support

正解: B

解説: (PassTest メンバーにのみ表示されます)

質問 5

www.company.com is a newly launched social portal for exchanging automotive information. The portal is based on PHP, including 10GB of images, and some JavaScripts files. Currently one single ECS instance is used to host all the application content as well as a MySQL database. With the growing number of users, the portal is getting slower to load images or respond to user requests. Moreover, there will be additional 50GB image content uploaded to the portal every week. Which combination of Alibaba Cloud services below can help resolve the storage and performance issue at the same time?

A. OSS + RDS combination

B. OSS + ECS combination

C. OSS + MTS combination

D. OSS + CDN combination

正解: D

解説: (PassTest メンバーにのみ表示されます)

質問 6

Which of the following scenarios is applicable to use RDS read-only instances?

A. Reduces the read pressure on the RDS primary instance.

B. Improves RDS storage capabilities.

C. Implements data backtracking for the last two days.

D. Reduces the write pressure on the RDS primary instance.

正解: A

質問 7

Auto Scaling can automatically remove unhealthy ECS instances from the scaling group (this feature is called Elastic Self-Health). Yet, after removal, the user has to manually add equivalent amount of new ECS instances back to the scaling group.

A. FALSE

B. TRUE

正解: A

解説: (PassTest メンバーにのみ表示されます)

質問 8

Which of the following scenarios is applicable to use RDS read-only instances?

A. Reduces the read pressure on the RDS primary instance.

B. Improves RDS storage capabilities.

C. Implements data backtracking for the last two days.

D. Reduces the write pressure on the RDS primary instance.

正解: A

解説: (PassTest メンバーにのみ表示されます)

Alibaba Cloud ACA Cloud Computing Associate - ACA-Cloud1 模擬練習