DP-203 Serverless relational database for OLTP Practice Question
Which Azure service provides fully managed, serverless relational database capabilities for transactional workloads in a data storage solution?
⚠ Common exam trap
Watch out — candidates often confuse 'fully managed serverless relational database' with Azure Cosmos DB (which is serverless but not relational) or Azure Synapse Analytics (which is relational but designed for analytics, not transactions), leading them to overlook the specific OLTP focus of Azure SQL Database.
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 SQL Database
Azure SQL Database is a fully managed, serverless relational database service designed for transactional workloads. It provides built-in high availability, automatic scaling, and pay-per-use billing, making it ideal for OLTP scenarios without the need to manage underlying infrastructure.
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 Cosmos DB
Why it's wrong here
Cosmos DB is a NoSQL database, not relational.
- ✗
Azure Synapse Analytics
Why it's wrong here
Synapse Analytics is for large-scale analytics, not transactional workloads.
- ✗
Azure Data Lake Storage Gen2
Why it's wrong here
Data Lake Storage is for big data analytics, not relational OLTP.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The DP-203 exam frequently reuses these exact scenarios with slightly different constraints.
✓Azure SQL DatabaseCorrect answer▾
✗Azure Cosmos DBWrong answer — click to see why▾
Why this is wrong here
Cosmos DB is a NoSQL database, not relational.
✗Azure Synapse AnalyticsWrong answer — click to see why▾
Why this is wrong here
Synapse Analytics is for large-scale analytics, not transactional workloads.
✗Azure Data Lake Storage Gen2Wrong answer — click to see why▾
Why this is wrong here
Data Lake Storage is for big data analytics, not relational OLTP.
Analysis generated from the official DP-203blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
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About these practice questions
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DP-203 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-203 exam.