Alibaba ACA-Database Practice Exam Questions & Answers

7 Free Questions Last reviewed October 26, 2026 Prepared & Reviewed by the ValidExamDumps Editorial Team

80 Practice Questions (Our Bank)
90 minutes Exam Duration
750 out of 1000 Passing Score
Exam Facts

Alibaba ACA-Database Exam Details

Key details for this exam, checked against the published exam outline

Exam Code
ACA-Database
Full Name
ACA Database Exam
Issuing Body
Alibaba Cloud
Question Format (Our Bank)
Multiple Choice
Delivery
Online proctored exam through Alibaba Cloud's testing platform
Eligibility
No prerequisites
Practice Questions

Free ACA-Database Practice Questions

Each question shows the correct answer and an explanation of why it is right

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ValidExamDumps Editorial Team Every question and its answer is checked by our ACA-Database exam preparation team, who also write the explanation shown with each one. How we research and review these pages

Question 1 Domain 4 Data Warehouse

Which of the following are features supported by Alibaba Cloud RDS for MySQL? (The number of

Correct Answer A, C, D
Explanation Data Lake Analytics (DLA) is designed for analytical workloads on structured and unstructured data at scale. It excels at complex queries, data exploration, and business intelligence across data lakes. Online transaction processing (OLTP) is fundamentally different - it requires fast, frequent read-write operations on structured data with strict consistency guarantees. DLA is optimized for OLAP workloads, not transactional systems. The other options, data exploration and cross-source analytics, are core use cases for DLA.

Question 2 Domain 2 Relational Database

Which of the following statements about Alibaba Cloud ApsaraDB for MongoDB is true?

Correct Answer C
Explanation PostgreSQL supports one-to-many relationships through multiple data types. JSON and its binary variant JSONB let you store nested objects where one parent can have many child records in an array. Arrays are a native PostgreSQL type that explicitly handle collections of values, enabling one-to-many patterns directly. Strings can also represent one-to-many data, though less efficiently than the other options. Numbers and booleans cannot model relationships in this way.

Question 3 Domain 5 Database Ecological Tools

You have a client that wants to move from another cloud provider's database service to RDS. Which of these is the best way to move their database to Alibaba Cloud?

Correct Answer A
Explanation DMS supports data warehouse development with several key features. Data lineage tracks how data flows through your pipelines so you understand dependencies and transformations. Data quality features help you validate and monitor data accuracy throughout processes. Data service capabilities allow you to expose data through APIs and services. Task orchestration and recurring scheduling enable automation of complex workflows. These three features directly support the data warehouse development functionality that DMS provides.

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Question 4 Domain 6 Database common solution

Which of the following statements about Data Management (DMS) permissions management is NOT true?

Correct Answer C
Explanation Cloud databases offer clear advantages over self-managed infrastructure. Service providers guarantee uptime through strong SLAs, removing the burden from your team. Cloud services handle operations, maintenance, patching, and security updates, which reduces your operational overhead. High availability is built-in with automatic failover, replication, and geo-redundancy. Comprehensive backup and monitoring capabilities are included as standard features. Self-managed databases require you to build and maintain all these capabilities yourself.

Question 5 Domain 5 Database Ecological Tools

Which of the following computing capabilities are supported by AnalyticDB? (Number of correct answers: 4)

Correct Answer A, B, D, E

Question 6 Domain 5 Database Ecological Tools

Which of the following is the core benefit of ApsaraDB for Redis Enhanced Edition (Tair)?

Correct Answer D
Explanation Data Transmission Service (DTS) is Alibaba Cloud's purpose-built tool for migrating databases from other cloud providers or on-premises systems. It handles schema conversion, data transfer, and incremental synchronization, which means you can keep the source system running during migration. DTS supports multiple database engines and minimizes downtime. Manual migration or simple export-import tools lack these capabilities and are far more error-prone and time-consuming for production databases.

Question 7 Domain 2 Relational Database

Alibaba Cloud DTS (Database Transmission Service) only supports MySQL databases.

Correct Answer B
Study Guide

What the Alibaba ACA-Database Exam Covers

Exam domains verified against the Official Alibaba ACA-Database exam guide, last checked October 2026.

Domain 1 Database Overview

10%

You need to understand the development history and future direction of database technology, plus the fundamental concepts that underpin modern database systems. Learn SQL syntax and structure, indexing strategies for query optimization, views for logical data organization, how transactions ensure data consistency, and the role of logs in recovery and auditing. Know the key database types including transactional (TP) databases for operational workloads, analytical (AP) databases for reporting, NoSQL solutions for flexible schemas, and the tools available to manage them. You should recognize Alibaba Cloud's complete database product portfolio and when to use each solution.

Domain 2 Relational Database

30%

Study the infrastructure and architecture of Alibaba Cloud's relational database services, especially RDS for MySQL, RDS for PostgreSQL, and RDS for SQL Server, so you can select the right option for your workload. Learn PolarDB as Alibaba's cloud-native database solution, including its distributed architecture and performance advantages over traditional databases. Understand PolarDB-O for Oracle-compatible syntax and PolarDB-PostgreSQL for PostgreSQL compatibility, knowing their core functions and where each applies. You must be comfortable with daily operations such as creating databases, performing backups and restores, maintaining schemas, monitoring performance metrics, establishing connections securely, and troubleshooting common issues.

Sample questions from this domain above Q2Q7

Domain 3 NoSQL

15%

Learn the infrastructure, core capabilities, and practical use cases of Tair, which is Alibaba's Redis-compatible enterprise database, and Apsara DB for MongoDB, a managed document database service. Understand when to choose a key-value store versus a document store based on your data structure and query patterns. Know how these services scale, replicate data, and handle consistency and availability trade-offs in production environments.

Domain 4 Data Warehouse

10%

Understand Alibaba Data Warehouse (ADB) infrastructure, its core analytical capabilities, and scenarios where it provides the best value for large-scale reporting and business intelligence. Learn about DLA (Data Lake Analytics) as a tool for querying data across multiple storage systems without moving data. Be skilled in creating warehouses, setting up tables and partitions, maintaining data freshness through pipelines, monitoring query performance, establishing secure connections, and managing costs through resource optimization.

Sample question from this domain above Q1

Domain 5 Database Ecological Tools

20%

Learn the core capabilities and basic operations of Alibaba Cloud's database tooling ecosystem. Master ADAM for database assessment and analysis, DTS for data migration and synchronization across sources and targets, DMS as the database management console for simplified operations, and DBS for backup and disaster recovery. Understand which tool solves each problem and how they integrate with your database infrastructure to keep systems running reliably.

Sample questions from this domain above Q3Q5Q6

Domain 6 Database common solution

15%

Learn the decision framework for choosing between cloud database editions, cloud-native deployments, and cloud-dedicated clusters like MyBase based on your requirements for isolation, performance, and cost. Understand the journey from on-premises to cloud-native architecture and how to architect high-performance cloud-native data systems. Know how to construct a modern data stack on Alibaba Cloud that meets enterprise reliability and scalability standards.

Sample question from this domain above Q4

FAQ

ACA-Database Exam FAQ

Common questions about the exam itself

What background do I need to take the ACA-Database exam?
You should have practical experience as a database developer, database operations engineer, or someone building on Alibaba Cloud. The exam assumes you know SQL basics, understand transaction concepts, and have hands-on experience creating and managing databases. There are no formal prerequisites, but working knowledge of at least one relational database is expected.
How hard is the ACA-Database exam and why?
The exam tests both conceptual knowledge and applied reasoning across six domains covering relational databases, NoSQL, data warehouses, and migration tools. Questions include scenario-based items where you must analyze trade-offs between performance, cost, availability, and consistency, then justify your choice. This mix of theory and real-world decision-making is what makes it moderately challenging.
Which domain in ACA-Database causes candidates the most trouble?
Relational Database at 30% weighting is the largest section and often the hardest because it requires depth across RDS, PolarDB, and PolarDB variants, plus operational skills. Candidates struggle most when they have theoretical knowledge but lack hands-on experience creating indexes, tuning queries, or managing replication. Practice in a real Alibaba Cloud environment builds confidence faster than reading alone.
How long should I spend preparing for the ACA-Database exam?
Most candidates benefit from four to eight weeks of structured study if they have database experience already. Dedicate one to two hours per day, mapping each week to one or two domains, and spend the final week on a timed practice exam. If you are new to Alibaba's specific products, allow eight to twelve weeks instead.
What happens on exam day for ACA-Database?
You answer 50 multiple-choice questions in 90 minutes, either online with proctoring or at a test center. The exam is non-refundable, so confirm your registration before your scheduled time. You receive a score immediately upon completion.
What is the passing score for ACA-Database and how is it calculated?
The official passing score is not published on Alibaba's public pages. Contact Alibaba Cloud Academy directly or check your exam result email for the exact threshold and your scaled score breakdown.
How long does the ACA-Database certification stay valid?
The official validity period is not published. After earning the credential, check your certificate details or Alibaba's certification management portal for renewal dates and any recertification requirements.
Can I retake the ACA-Database exam if I fail, and what are the rules?
Retake policies are not listed on the official page. You must contact Alibaba Cloud Academy to learn the waiting period between attempts, how many retakes are allowed, and any associated fees. The exam is non-refundable, so each attempt requires a new purchase.
Is ACA-Database the same exam as before, or has Alibaba changed it?
ACA Database Certification was retired on March 31, 2025. If you are studying now, check Alibaba Cloud Academy for the Professional Certification Upgrade path, which replaces the ACA track with new exam codes and formats.
What job roles does ACA-Database certification target?
The certification is designed for database developers, database operations and maintenance engineers, and cloud architects. It validates skills needed to deploy, configure, maintain, and troubleshoot Alibaba Cloud database services in production.

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