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Master key concepts with interactive flashcards
What is the difference between structured, semi-structured, and unstructured data?
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Structured data has a fixed schema (e.g., relational tables). Semi-structured data has flexible schema stored in self-describing formats like JSON or XML. Unstructured data has no schema — examples include images, video, audio, and free-text documents.
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Azure Data Fundamentals (DP-900) is a Microsoft certification. These facts come from the current exam guide and are the numbers to plan around.
| Domain | Weight | What to focus on |
|---|---|---|
| Describe core data concepts | 25% | Types of core data workloads, Data concepts (structured, semi-structured, unstructured), Batch and streaming data processing |
| Identify considerations for relational data in Azure | 25% | Relational data concepts (tables, keys, normalization), SQL language fundamentals (DDL, DML, DCL), Azure SQL Database |
| Describe considerations for working with non-relational data on Azure | 25% | Non-relational data concepts (key-value, document, graph, column-family), Azure Cosmos DB and its APIs, Azure Cosmos DB consistency levels |
| Describe an analytics workload on Azure |
| 25% |
| Data warehousing concepts (star schema, ETL vs ELT), Azure Synapse Analytics, Azure Databricks |
Yes. You can start DP-900 practice and flashcards free without creating an account. A free account keeps your progress, and the full bank (300+ questions) unlocks with a subscription.
They cover all 4 domains of the DP-900 exam: Describe core data concepts (25%), Identify considerations for relational data in Azure (25%), Describe considerations for working with non-relational data on Azure (25%), Describe an analytics workload on Azure (25%). Each section is weighted in the same proportion as the real exam, so nothing high-value is buried.
The DP-900 exam has approximately 40 questions in 45 minutes, with a passing score of 700. Use the practice questions to confirm you are consistently above that line before booking the real exam.
Study in short, spaced sessions: a card you have not seen for two days is worth more than a card you reread immediately. Filter by Describe core data concepts first, then mix domains so you practise identifying the topic before recalling the definition.
They are the recall half of preparation. Pair the cards with practice questions and at least one timed practice exam — candidates who only review cards usually recognise terms but miss scenario questions.