Microsoft Certified: Azure Cosmos DB AI Developer Associate — Requirements & Free Practice
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Microsoft Certified: Azure Cosmos DB AI Developer Associate
Microsoft certification validating Azure Cosmos DB AI application development skills through examination DP-420.
Licensing authority: Microsoft · Application information
Initial by examination
- Award
- Pass the DP-420 examination listed on the certification detail page; this route records the current English examination skills measured as of October 6, 2026.
- Dates
- The October 6, 2026 date establishes current examination skills and the certification name/level update; it is not evidence of the credential's or initial route's original inception, so those starting dates remain null.
- Experience
- Microsoft recommends C# or Python development experience and familiarity with Azure services, generative AI concepts, retrieval-based systems and application development practices; the audience recommendations are not represented as another mandatory examination.
- Scheduling
- Rolling Pearson VUE appointments subject to availability; no more than 90 days ahead and at most two Microsoft certification exams scheduled simultaneously. Use a Learn Profile with a legal name matching legal ID; a personal MSA is recommended. Request accommodations before scheduling. Online testing, when offered, requires a system pre-check and compliant equipment and space; test-center delivery is the alternative.
Exam DP-420: Building AI Applications with Azure Cosmos DB
- Provider
- Pearson VUE
- Format
- Proctored technical certification examination; interactive components may occur.
- Time limit
- 100 minutes
- Passing score
- 700 or greater on Microsoft's 1–1,000 scaled technical-exam scale; this is not 70% correct.
Examination outline
The authority publishes percentage ranges for each content area. The practice percentages below use the midpoint of each range, normalized to 100%; they are not exact percentages published by the authority. Practice question counts may differ slightly because of rounding.
Design and develop database solutions — Official range: 40–45% (Practice allocation: 43.59%)
- Evaluate resource models and SDK solutions
- Implement database operations
- Design and implement data models and partitioning strategies
- Implement change feed
- Design and implement Azure Cosmos DB solutions by using AI-assisted tools
Secure, optimize, and deploy database solutions — Official range: 30–35% (Practice allocation: 33.33%)
- Implement database security controls
- Implement availability and recovery solutions
- Optimize and remediate database performance
- Implement Fleet management and monitoring across multiple accounts and subscriptions
Implement AI and analytics capabilities in database solutions — Official range: 20–25% (Practice allocation: 23.08%)
- Design and implement AI retrieval
- Design and implement agent memory stores
- Design and implement operational analytics on Azure Cosmos DB
Examination sources
- Microsoft DP-420 study guide
h1 and Purpose of this document
- Microsoft DP-420 study guide
Skills measured as of October 6, 2026; Skills at a glance
- Microsoft DP-420 study guide
Updates to the exam, assessment scope notes
- Microsoft certification DP-420 resource adoption
Certification resources, Exam DP-420 study guide
- Microsoft DP-420 study guide
h2#skills-measured-as-of-october-6-2026
- Microsoft DP-420 study guide
Purpose of this document, Useful links table, Exam scoring and score reports row
- Microsoft exam scoring and score reports
Scores needed to pass exams; How exams are scored
- Microsoft certification DP-420 exam panel
Take the exam; Exam policy
- Microsoft certification DP-420 scheduling panel
Take the exam, languages and Pearson Vue scheduling panel
- Microsoft register and schedule an exam
How to register and schedule an exam
- Microsoft register and schedule an exam
Exam accommodations; Online exam and test center options; Run a system pre-check
- Microsoft register and schedule an exam
Step-by-step exam registration instructions, Learn Profile and legal name
- Microsoft DP-420 study guide
Skills measured as of October 6, 2026, Audience profile, final paragraph