Azure Mastery
Download
Azure Mastery
Microsoft Certification DP-900
On-device AI scores your readiness, builds an adaptive study plan, and flags topics fading from memory — before they cost you the exam.
Get exam-ready for DP-900 (Microsoft Azure Data Fundamentals) on iPhone or iPad. Azure Mastery uses on-device AI to predict your readiness score, build a personalised study plan, and surface topics you're forgetting — all without sending a single byte off your device.
The exam
DP-900 is the Microsoft Certified: Azure Data Fundamentals credential — the entry-level exam for anyone working with data in the Microsoft Azure cloud. It's pitched at candidates who have basic familiarity with relational vs non-relational data and transactional vs analytical workloads, but doesn't require database-administration experience. Common audiences include data analysts about to step into Power BI work, software engineers crossing into a data role, and product/operations partners who need to discuss data architecture credibly.
The exam doesn't ask you to write SQL queries from scratch or design a star schema. It expects you to recognise scenarios: structured vs semi-structured vs unstructured data; OLTP vs OLAP workloads; the difference between Azure SQL Database, Azure SQL Managed Instance, and SQL Server on Azure VMs; when to reach for Azure Cosmos DB, Azure Blob Storage, or Azure Data Lake Storage Gen2; and how Microsoft Fabric's analytics surface fits with Azure Synapse Analytics.
Microsoft updated the DP-900 skills outline on 1 November 2024. Every question in Azure Mastery's DP-900 bank is mapped to the current outline — no leftover questions on retired services. Read the official outline at learn.microsoft.com.
Skills measured · November 2024
Four domains, with weights set by Microsoft's November 2024 update. Every domain summary below is paraphrased from the official skills outline; the bullet-level objectives in Azure Mastery are tagged so you always know which domain you're being tested on.
The conceptual base. Distinguishing structured, semi-structured, and unstructured data; identifying common data file formats (CSV, JSON, Parquet, Avro); types of databases (relational vs non-relational, key-value, document, graph, columnar); and the split between transactional (OLTP) and analytical (OLAP) workloads. Also covers the four classic data roles: database administrator, data engineer, data analyst, and data scientist. Around 11–18 questions per sitting.
Relational concepts — tables, indexes, views, normalization — and the SQL Server family on Azure: Azure SQL Database, Azure SQL Managed Instance, SQL Server on Azure VMs, plus open-source services for PostgreSQL and MySQL. Expect scenario questions like "single-tenant on-prem migration" → SQL Managed Instance, or "cloud-native serverless app" → Azure SQL Database. Around 8–15 questions.
Smallest domain by weight but tonally distinct. Covers Azure Cosmos DB (and its API options — NoSQL, MongoDB, Cassandra, Gremlin, Table) and Azure Storage services for non-relational data: Blob containers, file shares, Data Lake Storage Gen2, table storage. Strong on "which storage tier?" questions. Around 6–12 questions.
The largest domain (tied with core concepts). Modern data warehousing concepts; Microsoft Fabric and Azure Synapse Analytics; ingestion services (Azure Data Factory, Azure Synapse pipelines); real-time streaming (Azure Stream Analytics); and the data-visualisation surface — Power BI, including dashboards, reports, and the role of Power BI Desktop vs Power BI Service. Around 11–18 questions.
Designed for DP-900
Azure Mastery ships with 324 DP-900 practice questions, every one written specifically against the current (November 2024) skills outline — not generic data trivia. Each question carries a domain tag mapped to the official four domains (core data concepts, relational data, non-relational data, analytics workloads), so you always know which area you're being tested on and where your weak spots are clustered.
The on-device Exam IQ engine predicts your DP-900 score before you sit the exam. After roughly 30 questions it has enough signal to give a confidence-scored prediction (e.g. "708 ±60, 68% confidence") — and tells you the specific topics that are dragging your readiness down. No vague "study more" advice; just a ranked list of objectives where improvement would move your score the furthest.
The adaptive study plan rebuilds itself from your answer history. Get something wrong on Azure SQL Database vs Managed Instance? You'll see another SQL-family question in the next session. Master "describe OLTP vs OLAP" three sessions running and the engine backs off, surfacing fresh Cosmos DB or Microsoft Fabric scenarios. The plan optimises for the gap between where you are and the 700 pass score, not for blind volume.
Knowledge decay tracking is the secret weapon for foundational exams like DP-900. The same domain you mastered six weeks ago is the domain you'll forget by exam day if you stop revising. Azure Mastery tracks every topic's decay curve and flags topics approaching expiry — the padlock icon on the Today screen is your "revisit before you forget" cue.
Real exam simulation mode runs at DP-900's actual length and time pressure: a randomised question set drawn from the full 324-question bank, 45-minute timer, no jumping back to flag-and-review. It's the closest you can get to the test centre experience without sitting the exam.
Everything runs on-device. Your answer history, your readiness gauge, your decay alerts — none of it leaves your iPhone or iPad. No account required to start, no tracking, no sync server. Privacy-first by design.
2-week revision plan
Most candidates with prior IT experience pass DP-900 after one to two weeks of focused revision. Below is a two-week plan that maps onto Azure Mastery's domains, simulator, and decay alerts. Adjust pace to taste — the readiness gauge tells you when you're done, not the calendar.
Inside the app
DP-900's question bank uses the same formats Microsoft puts on the live exam — not just multiple choice. Each visualisation below is a faithful mock of how the type renders inside Azure Mastery on iPhone and iPad. Exam-simulator mode runs all of them at full 45-minute length with no flag-and-review jumps, mirroring Pearson VUE.
One correct answer from four to six options. The most common type on every Azure exam — practical recall of services, settings, and limits.
~50% of questionsPick two or more correct answers from a list. Microsoft tells you exactly how many to choose. Partial credit not awarded — you need every selection right.
All-or-nothingArrange items into the correct sequence — deployment steps, the order operations occur in a pipeline, troubleshooting flows. Long-press to drag on touch.
Order mattersTap the correct area of an image — the right setting in a portal screenshot, the right resource in a topology diagram. Practical visual recall under time pressure.
Tap targetA multi-paragraph scenario followed by 4–6 linked questions. Common on DP-900 in the storage and identity domains; dominant on AZ-305 and AZ-400.
Multi-questionAn Azure Mastery exclusive. When you answer incorrectly, an on-device Apple Foundation Model writes a targeted explanation grounded in the correct rationale. Never leaves your device.
App exclusiveFrequently asked
The DP-900 voucher is USD $99 in the United States. Pricing varies by region — in the UK it's typically around £77. Microsoft sometimes runs free-voucher promotions for events such as Microsoft Build or Microsoft Ignite, so check your Microsoft Learn profile for any active offers before booking.
No. Microsoft Fundamentals certifications — including AZ-900, DP-900, AI-900, MS-900, and PL-900 — do not expire. Once you pass, the certification is yours for life. (This is different from Associate and Expert certifications such as DP-300 or AZ-104, which require an annual free renewal assessment on Microsoft Learn.)
The first retake is allowed after 24 hours. Second and third retakes each require a 14-day wait. Microsoft caps retakes at five attempts per 12-month rolling period. Each attempt requires a new voucher purchase.
Most candidates with prior IT experience pass after one to two weeks of focused revision. If cloud computing is genuinely new to you, plan for three to four weeks. Azure Mastery's readiness gauge will tell you when you're at exam-ready — don't book until it shows roughly 720 or higher predicted score with reasonable confidence.
DP-900 first if databases aren't already your day job. DP-900 teaches you the data vocabulary (relational vs non-relational, OLTP vs OLAP, the SQL-family service triangle, Cosmos DB API options) without expecting hands-on T-SQL. DP-300 is the role-based Database Administrator Associate exam — it expects you to manage Azure SQL workloads in production, write queries, and configure HA/DR. Most candidates pass DP-900 in a few weeks, then spend two to three months on DP-300.
Yes — Microsoft positions DP-900 for both technical and non-technical candidates. Data analysts about to step into Power BI work, software engineers crossing into a data role, and product managers responsible for analytics architecture all sit DP-900. The exam doesn't ask you to write SQL queries. It asks you to recognise scenarios — "which Azure SQL service for this workload?" or "which storage tier for this access pattern?" — and pick the correct option.
Where DP-900 fits
DP-900 is the foundational entry point for Microsoft's Data and BI role-based tracks. It's optional but strongly recommended — Microsoft markets it as preparation for the Database Administrator and Data Engineer Associate paths, even though it's not a formal prerequisite. If your interest is general Azure infrastructure, look at AZ-900 (Azure Fundamentals) instead.
Download Azure Mastery free. 324 DP-900 practice questions, AI score prediction, and a personalised study plan that adapts to your weak spots. iPhone & iPad.
Download Azure Mastery — free iPhone & iPad · Free to start · No account required