Alibaba ACA-Operator Exam Practice Test Instant Access

Question 1

You need to log all actions taken by users of your Alibaba Cloud account,

whether via the command line tools or the web console. Which Alibaba Cloud

product can you use to create a log of user operations?

ACloudMonitor

BActionTrail

CCloud Configo

DResource Group

Answer : B

https://www.alibabacloud.com/help/doc-detail/28804.htm

Question 2

A developer is making the ModifyDBInstanceSpec API call to change the specifications of an RDS instance, but the operation fails. Why could this be? (Number of correct answers: 3)

AThe instance is in the 'running' state

BNo instance type (specification) was included in the request parameters

CThe instance has a backup task being executed

DThe targeted RDS instance is a disaster recovery instance

Answer : B, C, D

Question 3

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 4

Which of the following services is used to establish private network connections between virtual private clouds (VPCs) in different regions, or between VPCs and data centers?

ACEN (Cloud Enterprise Network)

BExpress Connect

CVPN Gateway

DNAT Gateway

Answer : A

https://www.alibabacloud.com/help/doc-detail/59870.htm

Question 5

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 6

Serverless Workflow allow you to orchestrate distributed tasks in sequence, branch, and parallel modes, and ensure that tasks are reliably coordinated according to your workflow logic. Which of the following service integration modes is not supported by Serverless Workflow?

ARequest response mode

BSynchronization mode

CAsynchronous mode

DWaiting for callback mode

Answer : C

Asynchronous mode is only possible with the combination of MNS service. https://static-aliyun-doc.oss-cnhangzhou.aliyuncs.com/download%2Fpdf%2F122479%2FBest_Practices_intl _en-US.pdf

Question 7

Which of the following database connection methods does ApsaraDB for Redis support? (Number of correct answers: 2)

ADMS (Data Management Service)

BAliyun-cli

CRedis-cli

DSentinel

Answer : A, C

Alibaba ACA System Operator Certification ACA-Operator Exam Practice Test