Microsoft Azure Cosmos DB Developer Specialty
The DP-420 exam is designed for professionals who implement and configure Azure. It validates your ability to 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.
Exam details
- Certification
- Microsoft Azure Cosmos DB Developer Specialty
- Exam code
- DP-420
- Level
- Specialty
- Duration
- Approximately 100 minutes
- Questions
- Typically 40–60 questions
- Passing score
- 700 out of 1000
- Cost
- USD $165 — typical price; the exact fee varies by country/region and currency, and local taxes may apply.
- Prerequisites
- None required
- Languages
- English (also available in Japanese, Chinese (Simplified), Korean, German, French, Spanish, Portuguese (Brazil), Chinese (Traditional) and Italian)
- Delivered by
- Pearson VUE
- Renewal
- Free online assessment, every 12 months
Skills measured
- Design and implement data models
- Design and implement data distribution
- Integrate an Azure Cosmos DB solution
- Optimize an Azure Cosmos DB solution
- Maintain an Azure Cosmos DB solution
Study resources & practice tests
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Frequently asked questions
Who should take DP-420?
DP-420 is aimed at developers who design, implement and monitor cloud-native applications that store and manage data in Azure Cosmos DB. It suits professionals who build data models, load and distribute data, and optimise solutions using the Azure Cosmos DB for NoSQL API, and who are comfortable writing efficient SQL queries, creating indexing policies, interpreting JSON and reading C# or Java code.
How to prepare for DP-420?
Combine the free Microsoft Learn learning paths with hands-on practice in an Azure Cosmos DB account, then confirm your readiness with a reputable practice test. Focus on the skills measured: designing and implementing data models, designing and implementing data distribution, integrating an Azure Cosmos DB solution, optimising an Azure Cosmos DB solution, and maintaining an Azure Cosmos DB solution. See the study resources below.
How to register for the DP-420 exam?
You book the exam from the official Microsoft certification page, which schedules it through Pearson VUE. You can sit it online with remote proctoring from home or at a test centre. Pick the date and delivery option that suits you when you register.
What is the retake policy if I fail DP-420?
If you don't pass on your first attempt, you must wait 24 hours before retaking. After a second failure you must wait 14 days, with the same 14-day wait before each further attempt. You may take the exam a maximum of five times within a 12-month period, and the exam fee applies to each attempt.