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Start guided practiceCosmos DB for developers: modelling and partitioning for access patterns, distributing data globally, integrating with the wider Azure estate, then optimising and maintaining what you built.
Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB is Microsoft's specialty-level databases certification, sat as exam DP-420. The exam runs for 1 hour 40 minutes, with a pass mark of 700 / 1000 (scaled). It costs US$165 at the standard rate.
Microsoft publishes the syllabus as 5 weighted domains. Design and implement data models carries the most weight at 38%, and the three largest domains together account for roughly 84% of the scored content — worth knowing before you decide where study time goes.
Confirm these details on the official Microsoft page before booking — vendors adjust format and pricing without notice.
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The published exam guide for DP-420, in the vendor's own order.
01Design and implement data models
38%02Design and implement data distribution
8%03Integrate an Azure Cosmos DB solution
8%04Optimize an Azure Cosmos DB solution
18%05Maintain an Azure Cosmos DB solution
28%Development experience and familiarity with NoSQL data modelling.
Specialty level — Deep-dive credentials focused on a single technical domain.
Preview 25 supported questions before unlocking the 102-question DP-420 bank.
Community-contributedCompiled from publicly posted community exam discussions. Contributed by third parties rather than written here, so accuracy varies and most items carry no explanation. Progress and bookmarks stay in this browser.
Answer support: 0 explanations, 98 questions with candidate context and 0 questions with direct citations. Bank updated .
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Compiled from exam discussions posted publicly by other people on ExamTopics. Copyright in each contribution rests with its original author; it is reproduced here for study. Not verified by us — most items carry no explanation. To request removal, see our content policy.
The exam is scheduled for 1 hour 40 minutes. Microsoft does not publish a fixed question count for this exam.
700 / 1000 (scaled). Confirm the current figure on the official exam page before booking, as vendors adjust cut scores when an exam form is refreshed.
The standard price is US$165. Local pricing, taxes and any retake policy vary by region, so check the official page for the figure that applies to you.
Development experience and familiarity with NoSQL data modelling.
The exam guide covers Design and implement data models, Design and implement data distribution, Integrate an Azure Cosmos DB solution, Optimize an Azure Cosmos DB solution and Maintain an Azure Cosmos DB solution. The full weighted breakdown is listed above.
Yes — this exam has 102 practice questions available here, each with the correct answer marked. They are community-contributed, compiled from exam discussions posted publicly by other people rather than written here, and most do not carry an explanation.