Alibaba ACA-Database Practice Exam Questions & Answers
5 Free Questions
· Last reviewed: September 10, 2026
· Prepared & Reviewed by the ValidExamDumps Editorial Team
Exam Facts
Alibaba ACA-Database Exam Details
Key details for this exam, checked against the published exam outline
80
Practice Questions (Our Bank)
90 minutes
Exam Duration
750 out of 1000
Passing Score
- 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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Every question and its answer is checked by our ACA-Database exam
preparation team, who also write the explanation shown with each one.
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Which of these are NOT good use cases for DTS (Data Transmission Service)? (Number of correct
answers: 2)
Correct Answer:
C, D
Explanation
PolarDB-O's proxy layer handles several critical database operations. Read/write splitting directs queries appropriately between read and write nodes to optimize performance. Load balancing distributes traffic across multiple nodes evenly. Health checks monitor node status continuously to detect failures quickly. Failover strategies automatically redirect connections when a node goes down, maintaining availability. These four features work together to ensure the database cluster runs smoothly and handles traffic efficiently without manual intervention.
Which of the following architectures is not supported by ApsaraDB RDS for MySQL?
Correct Answer:
D
Explanation
Relational databases organize data into structured tables with defined schemas and relationships. Oracle, MySQL, PostgreSQL, MariaDB, and SQL Server all follow this relational model. Oracle is enterprise-grade commercial software. MySQL and MariaDB are open source options. PostgreSQL is an advanced open source system. SQL Server is Microsoft's relational database. Options D, F, G, H and J typically refer to NoSQL or other non-relational systems, which do not use the table-based schema structure that defines relational databases.
PolarDB for MySQL allows you to deploy a cluster across multiple zones. Compared with single-zone clusters, multi-zone clusters have better disaster recovery capabilities and can withstand data centre-level faults.
Correct Answer:
A
Data Management (DMS) provides features related to data warehouse development to support task orchestration and recurring scheduling. Which of the following features are being developed? (Number of correct answers: 3)
Correct Answer:
A, B, E
Which of the following statements about Data Management (DMS) permissions management is NOT true?
Correct Answer:
C
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.
Sample question from this domain above:
Q2
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 question from this domain above:
Q1
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:
Q5
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:
Q3Q4
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.
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.
