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Microsoft DP-420 : Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB

DP-420

Exam Code: DP-420

Exam Name: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB

Updated: Aug 08, 2026

Q & A: 281 Questions and Answers

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About Microsoft DP-420 Exam

Skills measured

  • Integrate an Azure Cosmos DB solution (5–10%)
  • Design and implement data distribution (5–10%)
  • The English language version of this exam will be updated on August 4, 2022. Please download the exam skills outline below to see what’s changing.
  • Design and implement data models (35–40%)
  • Maintain an Azure Cosmos DB solution (25–30%)
  • Optimize an Azure Cosmos DB solution (15–20%)

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

Microsoft DP-420 Exam Syllabus Topics:

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

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