Question No. 1

In Alibaba Cloud, a developer finds that the ECS instance he created does not

have public IP assigned. The API method used was ''CreateInstance''. Which

of the following is the most likely reason?

AThe developer did not call AllocatePublicIpAdress (an additional API call), which is needed to assign a public IP

BThe CreateSecurityGroup API call was not made

CThe CreateDisk API call was not made

DThe ECS was not restarted after being created

Show Answer

Correct Answer: A

https://www.alibabacloud.com/help/doc-detail/25544.htm

Question No. 2

Which command should you run to create the resources described in the Terraform scripts?

Aterraform init

Bterraform plan

Cterraform destroy

Dterraform apply

Show Answer

Correct Answer: D

https://www.terraform.io/docs/cli/commands/apply.html

Question No. 3

Which of the following Alibaba Cloud services offers a software-defined wide area network (SD-WAN) solution based on cloud-native technologies?

ANAT Gateway

BSmart Access Gateway (SAG)

CVPN Gateway

DContent Delivery Network (CDN)

Show Answer

Correct Answer: B

https://www.alibabacloud.com/help/doc-detail/69227.htm

Question No. 4

When using Alibaba Cloud CDN, a visitor's request will first be routed to a CDN edge node, and in the event of a cache miss at this edge node, the node will fetch data from the origin site (back-to-source request). Even with this redirection, it is possible for the origin site to see the visitor's real IP address. Which of the following statements about obtaining the visitor's real IP address are correct? (Number of correct answers: 2)

A visitor's real IP address can only be obtained by modifying the site or web application.

Bvisitor's real IP address is stored in the 'X-Forwarded-For' HTTP header. It can be directly obtained via Apache or NGINX logs.

CIn Windows, if IIS is used, after installing the 'F5XForwardedFor' extension module, the visitor's real IP address can be seen via IIS logs.

DYou can activate the 'record visitor's real IP' function in the Alibaba Cloud CDN console, then you can directly view visitor's IP addresses from the Alibaba Cloud CDN access logs.

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Correct Answer: B, C

Question No. 5

Which of the following features are unique to Alibaba Cloud Container Registry, as compared with Docker Hub? (Number of correct answers: 2)

AContainer Registry can automatically build new Docker images when source code changes.

BFor source code hosted on websites outside China, Container Registry can use servers outside China to build Docker images, even when you are using a Container Registry instance in Mainland China.

CYou can create and delete image repositories in different regions based on your needs.

DYou can set your image repository access to public or private.

Show Answer

Correct Answer: B, C

Free Alibaba ACA-Operator Exam Actual Questions

The questions for ACA-Operator were last updated On Jan 16, 2025