Alibaba ACA-Operator Exam Practice Test Instant Access

Question 1

Which of the following options are correct for Multipart Upload and Resumable Upload in Object Storage Service (OSS)? (Number of correct answers: 3)

AUse Multipart Upload to upload multiple parts of a file in parallel to speed up the upload process

BMultipart Upload is usually used when the size of the file to be uploaded is large

CIf the upload fails due to an accident during the uploading of fragments, you need to upload all the fragments again

DAfter an upload is interrupted, the portions of the file which have successfully uploaded prior to the interruption will be saved in the OSS bucket

Answer : A, B, D

Question 2

Which of these log formats is currently supported by Alibaba Cloud's ActionTrail?

AXML

BHTML

CJSON

DMarkdown

Answer : C

https://www.alibabacloud.com/help/doc-detail/140850.htm

Question 3

Which of the following descriptions of the principles of Alibaba Cloud SSL certificate private key protection is correct?

AAlibaba Cloud uses the built-in functionality of the SSL certificate service to encrypt and store the private key to ensure the security of your certificate's private key

BThe plaintext of Alibaba Cloud's private key is usually stored on disk and backed up regularly

CAlibaba Cloud Certificate Service uses symmetric encryption to save the certificate private key.

DAlibaba Cloud Certificate Service keys are loaded into memory in plaintext format ONLY when needed.

Answer : D

Question 4

Which database utility is suitable for automate perception, healing, optimization, O&M, and security assurance for databases?

ADMS

BDBS

CDTS

DDAS

Answer : D

https://www.alibabacloud.com/help/doc-detail/64851.htm

Question 5

Alibaba Cloud RocketMQ is typically used in scenarios where message publishing and consumption performance requirements are high. Which of the following are supported message types in Alibaba Cloud RocketMQ? (Number of correct answers: 3)

AScheduled message

BOrdered message

CBatched message

DTransactional message

ERetried message

Answer : A, B, D

Question 6

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)

Answer : B

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

Question 7

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

Answer : A

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

Alibaba ACA System Operator Certification ACA-Operator Exam Practice Test