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Microsoft Azure Cosmos DB Developer Specialty DP-420J

DP-420J

Exam Code: DP-420J

Exam Name: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB (DP-420日本語版)

Updated: Aug 07, 2026

Q & A: 281 Questions and Answers

DP-420J Free Demo download:

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Skills measured

  • Maintain an Azure Cosmos DB solution (25–30%)
  • Design and implement data models (35–40%)
  • 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.
  • Integrate an Azure Cosmos DB solution (5–10%)
  • Design and implement data distribution (5–10%)
  • Optimize an Azure Cosmos DB solution (15–20%)

Get to know about the salary of the Microsoft DP-420 certified professional

The salary of the Microsoft DP-420 Certified professional depends on the type of the organization, company size, location, and the number of years of experience. It also depends on the job title of the Microsoft DP-420 certified professional. The average salary a Microsoft DP-420 certified professional can get, after passing the exam with the help of the DP-420 Dumps is as follows:

  • In the United Kingdom: 56,000 GBP
  • In India: 45,000 INR
  • In Sweden: 37,000 SEK
  • In the United States: 85,000 USD
  • In Germany: 43,000 EUR

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

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Microsoft DP-420日本語 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Integrate an Azure Cosmos DB solution5-10%- Implement solutions across services
  • 1. Integrate Azure Functions and Event Hubs
  • 2. Implement Azure AI Search integration
  • 3. Aggregate and archive data
  • 4. Enforce referential integrity
  • 5. Use Change Feed for denormalization
- Enable analytical workloads
  • 1. Write data back from Spark
  • 2. Configure Azure Cosmos DB Mirroring
  • 3. Enable analytical store
  • 4. Query analytical store from Synapse
Topic 2: Design and implement data distribution5-10%- Design and implement replication strategy
  • 1. Choose a consistency model
  • 2. Evaluate consistency model impacts
  • 3. Define automatic failover policies
  • 4. Choose when to distribute data
  • 5. Perform manual failovers
- Design and implement multi-region writes
  • 1. Choose when to use multi-region writes
  • 2. Implement multi-region writes
  • 3. Implement conflict resolution policies
Topic 3: Optimize an Azure Cosmos DB solution15-20%- Optimize query performance
  • 1. Retrieve request unit cost
  • 2. Implement integrated cache
  • 3. Adjust indexing policies
  • 4. Calculate query cost
- Define and implement indexing strategy
  • 1. Choose read-heavy or write-heavy indexing
  • 2. Choose appropriate index types
  • 3. Optimize index performance
  • 4. Configure custom indexing policies
  • 5. Implement composite indexes
- Design and implement change feeds
  • 1. Implement aggregation persistence
  • 2. Develop Azure Functions triggers
  • 3. Manage change feed instances
  • 4. Consume change feeds using SDK
Topic 4: Maintain an Azure Cosmos DB solution25-30%- Monitor and troubleshoot Azure Cosmos DB solutions
  • 1. Troubleshoot throughput issues
  • 2. Implement backup and recovery strategies
  • 3. Monitor metrics and logs
  • 4. Monitor performance and availability
Topic 5: Design and implement data models35-40%- Plan and implement sizing and scaling
  • 1. Design resource governance and scaling
  • 2. Evaluate global distribution costs
  • 3. Evaluate throughput and storage requirements
  • 4. Choose between serverless, provisioned, and free tier
  • 5. Configure throughput
- Design a data partitioning strategy
  • 1. Evaluate cross-partition query cost
  • 2. Implement synthetic partition keys
  • 3. Choose a partitioning strategy
  • 4. Evaluate throughput and data distribution
  • 5. Choose a partition key
  • 6. Plan for transactions with partition keys
- Design and implement a non-relational data model for Azure Cosmos DB for NoSQL
  • 1. Reference between documents
  • 2. Denormalize data across documents
  • 3. Identify data and associated access patterns
  • 4. Store multiple related entities in the same document
  • 5. Store multiple entity types in the same container
  • 6. Identify partition key, id, and unique keys
- Implement client connectivity options
  • 1. Use Azure Cosmos DB emulator
  • 2. Configure client-side threading and logging
  • 3. Create database connections
  • 4. Implement singleton client
  • 5. Handle connection errors
  • 6. Choose gateway or direct connectivity mode
- Implement server-side programming
  • 1. Write and deploy stored procedures
  • 2. Implement triggers
  • 3. Implement user-defined functions
- Implement data access
  • 1. Use consistency and query request options
  • 2. Use SDKs for CRUD operations
  • 3. Implement patch operations
  • 4. Manage transactional batch operations
  • 5. Implement optimistic concurrency control
  • 6. Implement SQL queries with arrays and aggregation
DP-420日本語 Related Exams
DP-420 - Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
DP-420-KR - Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB (DP-420 Korean Version)
DP-420日本語 - Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB (DP-420日本語版)
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