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Updated: Aug 14, 2026

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Microsoft DP-420 certification exam is designed for professionals who want to demonstrate their ability to design and implement cloud-native applications using Microsoft Azure Cosmos DB. DP-420 exam is intended for individuals who have a strong understanding of Azure Cosmos DB and have experience working with cloud-native applications.

Reference: https://docs.microsoft.com/en-us/learn/certifications/exams/dp-420?WT.mc_id=Azure_blog-wwl

Microsoft DP-420 Exam Overview:

Certification Vendor:Microsoft
Exam Name:Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
Exam Number:DP-420
Exam Duration:120 minutes
Exam Format:Multiple-choice, Multiple-response, Drag-and-drop, Case studies, Practical lab scenarios
Certificate Validity Period:12 months
Passing Score:700
Available Languages:English, Japanese, Chinese (Simplified)
Real Exam Qty:40-60
Related Certifications:Microsoft Certified: Azure Developer Associate
Microsoft Certified: Azure Solutions Architect Expert
Exam Price:$165 USD
Recommended Training:Course DP-420T00: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
Exam Registration:Microsoft Learn
Pearson VUE
Sample Questions:Microsoft DP-420 Sample Questions
Exam Way:Online proctored or onsite test center
Pre Condition:No mandatory prerequisites; recommended experience: developing Azure applications, working with NoSQL databases, proficiency in C#/Java/JavaScript/Python, familiarity with Azure management
Official Syllabus URL:https://learn.microsoft.com/en-us/credentials/certifications/resources/study-guides/dp-420

The DP-420 certification exam is intended for developers who have experience in designing and developing cloud-native applications and have a strong understanding of Azure Cosmos DB's features and functionalities. DP-420 exam measures a candidate's ability to design and implement solutions that leverage Cosmos DB's capabilities, including data modeling, partitioning, indexing, and querying.

The DP-420 exam is ideal for developers, architects, and database administrators who want to demonstrate their expertise in designing and implementing cloud-native applications using Cosmos DB. DP-420 exam also validates the candidate's ability to design and implement globally distributed, scalable, and highly available applications using Cosmos DB. Passing DP-420 exam will help professionals stand out in the job market and demonstrate their credibility in cloud-native application development.

Microsoft DP-420 Exam Syllabus Topics:

SectionWeightObjectives
Integrate an Azure Cosmos DB solution5-10%- Enable analytical workloads
  • 1. Use Synapse Link
  • 2. Configure analytical store
- Integrate with Azure services
  • 1. Use with Azure Functions, Logic Apps, Event Hubs
  • 2. Connect to Azure Stream Analytics
Design and implement data distribution5-10%- Design replication strategy
  • 1. Configure multi-region replication
  • 2. Implement multi-region write
- Manage data distribution and failover
  • 1. Define failover priorities
  • 2. Manage regional availability
Design and implement data models35-40%- Plan sizing and scaling
  • 1. Provision throughput and storage
  • 2. Select consistency levels
- Design partitioning strategy
  • 1. Plan for distribution and throughput
  • 2. Choose partition key based on workload
- Implement connectivity and data access
  • 1. Write efficient SQL queries
  • 2. Use SDKs to connect and operate
- Design and implement non-relational data models
  • 1. Configure time-to-live (TTL)
  • 2. Define primary and unique keys
  • 3. Denormalize data across documents
  • 4. Identify data and access patterns
  • 5. Store multiple entity types in one container
  • 6. Reference between documents
  • 7. Embed related entities in documents
Optimize an Azure Cosmos DB solution15-20%- Optimize query performance
  • 1. Optimize throughput allocation
  • 2. Tune query structure and syntax
- Define and implement indexing strategy
  • 1. Select index types and paths
  • 2. Exclude or include properties
- Work with change feed
  • 1. Trigger downstream workflows
  • 2. Process changes incrementally
Maintain an Azure Cosmos DB solution25-30%- Manage data movement
  • 1. Import/export data
  • 2. Migrate between APIs or regions
- Implement backup and restore
  • 1. Perform point-in-time restore
  • 2. Configure periodic backup
- Implement security
  • 1. Manage authentication and authorization
  • 2. Encrypt data at rest and in transit
- Monitor and troubleshoot
  • 1. Use Azure Monitor and Application Insights
  • 2. Analyze metrics and logs
- DevOps and automation
  • 1. Deploy via ARM, Bicep, CLI
  • 2. Automate operations

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