- A
Azure Database for PostgreSQL
Azure Database for PostgreSQL (Flexible Server) is a fully managed PostgreSQL service with automatic backups, patching, and zone-redundant high availability offering a 99.99% SLA. It is the ideal choice for a PostgreSQL-compatible relational database.
- B
Azure SQL Database
Why wrong: Azure SQL Database is a fully managed SQL Server relational database service, not compatible with PostgreSQL. It does not meet the PostgreSQL compatibility requirement.
- C
Azure Database for MySQL
Why wrong: Azure Database for MySQL is a fully managed MySQL service, not compatible with PostgreSQL. The application requires PostgreSQL compatibility.
- D
Azure Cosmos DB for PostgreSQL
Why wrong: Azure Cosmos DB for PostgreSQL is a distributed, horizontally scalable PostgreSQL-compatible database. However, it is designed for large-scale workloads and may not offer the simple fully managed experience with 99.99% SLA that the standard Azure Database for PostgreSQL flexible server provides. The question specifies automatic backups, patching, and high availability with 99.99% SLA, which aligns with Azure Database for PostgreSQL.
DP-900 Practice Question: Identify considerations for relational data on Azure
This DP-900 practice question tests your understanding of identify considerations for relational data on azure. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A startup is developing a web application that requires a relational database with PostgreSQL compatibility. They want a fully managed service that automatically handles backups, patching, and provides high availability with a 99.99% SLA. Which Azure service should they choose?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Azure Database for PostgreSQL
Azure Database for PostgreSQL is the correct choice because it is a fully managed relational database service that offers PostgreSQL compatibility, automatic backups, patching, and high availability with a 99.99% SLA. This meets the startup's requirements for a managed PostgreSQL solution without the need for manual administration.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Azure Database for PostgreSQL
Why this is correct
Azure Database for PostgreSQL (Flexible Server) is a fully managed PostgreSQL service with automatic backups, patching, and zone-redundant high availability offering a 99.99% SLA. It is the ideal choice for a PostgreSQL-compatible relational database.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Azure SQL Database
Why it's wrong here
Azure SQL Database is a fully managed SQL Server relational database service, not compatible with PostgreSQL. It does not meet the PostgreSQL compatibility requirement.
- ✗
Azure Database for MySQL
Why it's wrong here
Azure Database for MySQL is a fully managed MySQL service, not compatible with PostgreSQL. The application requires PostgreSQL compatibility.
- ✗
Azure Cosmos DB for PostgreSQL
Why it's wrong here
Azure Cosmos DB for PostgreSQL is a distributed, horizontally scalable PostgreSQL-compatible database. However, it is designed for large-scale workloads and may not offer the simple fully managed experience with 99.99% SLA that the standard Azure Database for PostgreSQL flexible server provides. The question specifies automatic backups, patching, and high availability with 99.99% SLA, which aligns with Azure Database for PostgreSQL.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse Azure Cosmos DB for PostgreSQL with Azure Database for PostgreSQL, not realizing that Cosmos DB for PostgreSQL is a distributed, globally replicated service optimized for large-scale workloads, not a standard fully managed relational database with automatic backups and patching.
Detailed technical explanation
How to think about this question
Azure Database for PostgreSQL uses the PostgreSQL engine and provides built-in high availability with automatic failover, point-in-time restore, and read replicas. The 99.99% SLA is achieved through zone-redundant deployment, which replicates data across multiple availability zones within an Azure region, ensuring minimal downtime even during regional failures.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
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FAQ
Questions learners often ask
What does this DP-900 question test?
Identify considerations for relational data on Azure — This question tests Identify considerations for relational data on Azure — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Azure Database for PostgreSQL — Azure Database for PostgreSQL is the correct choice because it is a fully managed relational database service that offers PostgreSQL compatibility, automatic backups, patching, and high availability with a 99.99% SLA. This meets the startup's requirements for a managed PostgreSQL solution without the need for manual administration.
What should I do if I get this DP-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This DP-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DP-900 exam.
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