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

DP-420 Exam Questions
  • Exam Code: DP-420
  • Exam Name: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
  • Updated: Aug 10, 2026
  • Q & A: 281 Questions and Answers
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About Microsoft DP-420 Exam Guide

Microsoft DP-420 certification exam is aimed at professionals who want to validate their skills and knowledge in designing and implementing cloud-native applications using Azure Cosmos DB. DP-420 exam covers a wide range of topics related to Azure Cosmos DB, including data modeling, partitioning, indexing, querying, and tuning. Candidates should have experience with cloud-native application development and a strong understanding of Azure services to prepare for DP-420 exam. Microsoft offers a variety of training resources to help candidates prepare for the DP-420 exam.

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

Microsoft DP-420: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB is an exam that tests the skills and knowledge of professionals in designing and implementing cloud-native applications. DP-420 exam is designed to validate the candidate's ability to design, develop, and implement cloud-native applications using Azure Cosmos DB, a globally distributed, multi-model database service.

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Microsoft DP-420 Exam Syllabus Topics:

SectionWeightObjectives
Optimize an Azure Cosmos DB solution15-20%- Define and implement indexing strategy
  • 1. Select index types and paths
  • 2. Exclude or include properties
- Optimize query performance
  • 1. Tune query structure and syntax
  • 2. Optimize throughput allocation
- Work with change feed
  • 1. Process changes incrementally
  • 2. Trigger downstream workflows
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. Manage regional availability
  • 2. Define failover priorities
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
- 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
- Implement security
  • 1. Encrypt data at rest and in transit
  • 2. Manage authentication and authorization
Design and implement data models35-40%- Design and implement non-relational data models
  • 1. Denormalize data across documents
  • 2. Store multiple entity types in one container
  • 3. Reference between documents
  • 4. Identify data and access patterns
  • 5. Configure time-to-live (TTL)
  • 6. Define primary and unique keys
  • 7. Embed related entities in documents
- Design partitioning strategy
  • 1. Plan for distribution and throughput
  • 2. Choose partition key based on workload
- Plan sizing and scaling
  • 1. Provision throughput and storage
  • 2. Select consistency levels
- Implement connectivity and data access
  • 1. Write efficient SQL queries
  • 2. Use SDKs to connect and operate
Integrate an Azure Cosmos DB solution5-10%- Enable analytical workloads
  • 1. Configure analytical store
  • 2. Use Synapse Link
- Integrate with Azure services
  • 1. Use with Azure Functions, Logic Apps, Event Hubs
  • 2. Connect to Azure Stream Analytics

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