Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB (DP-420 Korean Version): DP-420 Exam

"Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB (DP-420 Korean Version)", also known as DP-420 exam, is a Microsoft Certification. With the complete collection of questions and answers, UpdateDumps has assembled to take you through 281 Q&As to your DP-420 Exam preparation. In the DP-420 exam resources, you will cover every field and category in Azure Cosmos DB Developer Specialty Certification helping to ready you for your successful Microsoft Certification.

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  • Updated on: Sep 14, 2026
  • No. of Questions: 281 Questions & Answers

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  • No. of Questions: 281 Questions & Answers

Who should take the Microsoft DP-420 Certification Exam?

The targeted audience of the Microsoft DP-420 Certification Exam is IT professionals, who are interested in designing and implementing cloud-native applications using Microsoft Azure Cosmos DB database technologies. The Microsoft DP-420 Certification Exam is an important certification exam for every IT professional, who wants to get a job in a reputable company. DP-420 Dumps suggest that those individuals who have job titles like Azure SQL Database Administrator, Azure SQL Database Developer, Azure Cosmos DB Administrator, and Azure Cosmos DB Developer can also take this certification exam.

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What is the Microsoft DP-420 Certification Exam and why it is created?

DP-420 Certification Exam is also known as Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB (beta). DP-420 Certification Exam is authorized by Microsoft and is an IT professional certification exam that is designed to test the knowledge and skills of the candidates for designing and implementing cloud-native applications using Microsoft Azure Cosmos DB database technologies. This certification exam is a part of the Microsoft IT Professional certification program and is the final certification exam for Azure SQL Database Administration. DP-420 Dumps is the most reliable and easiest way to pass the DP-420 exam.

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

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

Candidates for this exam must have solid knowledge and experience developing apps for Azure and working with Azure Cosmos DB database technologies. They should be proficient at developing applications by using the Core (SQL) API and SDKs, writing efficient queries and creating appropriate index policies, provisioning and managing resources in Azure, and creating server-side objects with JavaScript. They should be able to interpret JSON, read C# or Java code, and use PowerShell.

The English language version of this exam will be updated on August 4, 2022. Please download the skills measured document below to see what’s changing. If a localized version of this exam is available, it will be updated approximately eight weeks after this date.

Passing score: 700. Learn more about exam scores.

Part of the requirements for: Microsoft Certified: Azure Cosmos DB Developer Specialty

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Microsoft DP-420 Korean Exam Syllabus Topics:

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

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