Most Recent Alibaba ACA-Developer Exam Dumps

Prepare for the Alibaba ACA Developer 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 ACA-Developer exam and achieve success.

The questions for ACA-Developer were last updated on Apr 22, 2026.

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Question No. 1

Alibaba Cloud Log Service is a Pay-As-You-Go service. The billing unit is 7 day, and the configuration can be adjusted at any time: fees are charged according to actual usage. Which of the following are the main charges for Log Service? (Number of correct answers: 3)

ARead and write traffic

BStorage capacity

CIndex traffic after index configuration

DQuery analysis

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Correct Answer: A, B, C

Question No. 2

Which of the following operations can be performed through Log Service sAPI? (Number of correct answers: 3)

ACollect logs based on Logtail configuration and Logtail machine group information

BCreate a Logstore, write and read logs to the Logstore

CAccess control for different users

DDeliver logs to OSS for storage and analysis

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Correct Answer: A, B, C

Question No. 3

Which data format is NOT supported by Alibaba Cloud Message Service?

AXML

BJSON

CSIMPLIFIED

DVERBOSE

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Correct Answer: D

Question No. 4

Which of the following statements describe the trace/D and spanID in a service tracking system (such as Zipkin) correctly? (Number of correct answers: 3)

AWhen the user's request enters the system, a globally unique traceld will be generated on the first layer of the calling network.

BThe tracelD will be called with each layer and passed back continuously, so through traceld, the path of a user request in the system can be connected in series.

CSpanld can locate the position of a request in the system call, and who its upstream and downstream dependencies are respectively.

DTraceld is used to distinguish the sequence of calls between different services of the system, spanld is used to concatenate all the paths that a certain request traverses in the system.

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Correct Answer: A, C, D

Question No. 5

In PolarDB, if an UPDATE SQL statement encounters an issue, you need to check the execution plan to figure out the root cause. However, in the production environment, to avoid affecting the production data, what statement should you use to view the execution plan? (Number of correct answers: 2)

Aexplain SQL

Bexplain analyze SQL

Cexplain verbose SQL

Dexplain analyze verbose SQL

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Correct Answer: B, C

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