Most Recent Alibaba ACA-Database Exam Questions & Answers

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

The questions for ACA-Database were last updated on Dec 26, 2024.

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Question No. 1

PolarDB for MySQL uses shared distributed storage and supports dual-zone deployment by default. How many data replicas are available across the two zones?

Show Answer

Correct Answer: D

Question No. 2

Which are the supported DB engine for PolarDB so far? (The number of Answer: 3)

APolarDB for Mysql

BPolarDB for Postgres

CPolarDB for SQLserver

DPolarDB for Oracle

Show Answer

Correct Answer: A, B, D

PolarDB is a cloud-native relational database compatible with MySQL, PostgreSQL, and Oracle. Reference:

https://www.alibabacloud.com/product/polardb

Question No. 3

What is the maximum number of read-only nodes in a PolarDB cluster?

C10

D15

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Correct Answer: D

Question No. 4

Which of the following is the wrong statement about PolarDB design architecture?

AA PolarDB cluster contains one primary instance and up to 15 read-only instances

BPolarDB consolidate compute processes and storage processes in one box, allowing the database capacity to scale up and down to meet your
application needs in Alibaba Cloud

CRead/write splitting is enabled for PolarDB clusters by default, providing transparent, highly available, and self-adaptive load balancing for your
database

DHigh speed network connection is enabled between the DB server and the chunk server, and data are transferred using the Remote Direct Memory Access (RDMA) protocol

Show Answer

Correct Answer: B

https://www.alibabacloud.com/help/doc-detail/58766.htm?spm=a2c63.p38356.b99.11.4e333181dMpFmV

Question No. 5

Alibaba Cloud DTS (Data Transmission Service) is a file migration tool.

ATrue

BFalse

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Correct Answer: B

DTS is a data migration, integration, synchronization and change tracking tool.

https://www.alibabacloud.com/help/doc-detail/176063.htm?spm=a2c63.l28256.b99.6.490d7142CiFvPb

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