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  • DP-420 (Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB)
Exam Code: DP-420
Exam Name: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
Certification Provider: Microsoft
Corresponding Certification: Azure Cosmos DB Developer Specialty

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DP-420

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Updated: Aug 19, 2026

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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 Price:$165 USD
Passing Score:700/1000
Available Languages:English, Japanese, Chinese (Simplified), Korean
Certificate Validity Period:1 year
Exam Format:Multiple choice, Case study, Drag and drop, Hot area, Lab
Real Exam Qty:40-60
Exam Duration:100-120
Related Certifications:Microsoft Certified: Azure Cosmos DB Developer Specialty
Sample Questions:Microsoft DP-420 Sample Questions
Exam Way:Online proctored exam or in-person test center
Pre Condition:No formal prerequisite exams are required. Candidates should have experience developing Azure solutions and working with Azure Cosmos DB.
Official Syllabus URL:https://learn.microsoft.com/en-us/credentials/certifications/exams/dp-420/

Here is everything you need to know about the Microsoft DP-420 Certification Exam

The most reliable way to pass the Microsoft DP-420 Exam

A guide about what you can expect on your DP-420 certification exam and how to pass it

Microsoft DP-420 is a certification exam that examines the knowledge and skills of the candidates for developing web applications for Azure and working with 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. Microsoft DP-420 certification exam is a very important exam as it is one of the most common exams that every IT professional needs to pass in order to get a job in a reputable organization. DP-420 Dumps is a very important tool that can help you pass the DP-420 Exam.

DP-420 exam will examine the candidates on their knowledge of Azure SQL Database administration. Candidates will be tested on their knowledge of Azure SQL Database and Azure Cosmos DB technologies. This certification exam will test the candidates on the knowledge of developing, configuring, administering, and managing Azure SQL Database and Azure Cosmos DB technologies. In this study guide, we are going to share a few resources that you can use while preparing for the Microsoft DP-420 Certification Exam. Moreover, we will also discuss the DP-420 exam topics, objectives, syllabus, exam format, and weightage of each section. So, if you are preparing for the DP-420 exam, you must read this study guide carefully.

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

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Languages: English, Japanese, Chinese (Simplified), Korean, German, French, Spanish, Portuguese (Brazil), Arabic (Saudi Arabia), Russian, Chinese (Traditional), Italian, Indonesian (Indonesia)

Retirement date: none

This exam measures your ability to accomplish the following technical tasks: design and implement data models; design and implement data distribution; integrate an Azure Cosmos DB solution; optimize an Azure Cosmos DB solution; and maintain an Azure Cosmos DB solution.

Get to know about the difficulties you can face while preparing for the Microsoft DP-420 Certification Exam

There are several difficulties you may face while preparing for the Microsoft DP-420 Certification Exam. Following are the difficulties you may face while preparing for the Microsoft DP-420 Certification Exam:

Time management is one of the most important skills to prepare for the Microsoft DP-420 Certification Exam. You should always manage your time properly. It will help you to prepare for the DP-420 Certification Exam in the given time. You should manage your stress levels. You should never get stressed while preparing for the Microsoft DP-420 Certification Exam. Stress will not only affect your preparation but will also affect your performance during the DP-420 Certification Exam. You should always prepare the questions of the Microsoft DP-420 Certification Exam in advance. You should prepare for the DP-420 Certification Exam by using the latest DP-420 Dumps.

Sometimes, you may not get all the resources to prepare for the DP-420 Certification Exam. So, you should always be ready to prepare for the DP-420 Certification Exam. You should always be ready to face the latest technologies. It will help you to prepare for the DP-420 Certification Exam and to get a good job. You should always be ready to forget things. You should always remember the things you learn from the Microsoft DP-420 Certification Exam. You should always be prepared to forget things. The candidate should always be ready to study at the given time. You should study for the DP-420 Certification Exam at the given time. You should also prepare for the DP-420 Certification Exam during your free time.

How much does a Microsoft DP-420 Certification Exam cost?

The Microsoft DP-420 Certification Exam costs around 165 USD.

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

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DP-420 Product FAQ's

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Test Engine: DP-420 study test engine can be downloaded and run on your own devices. Practice the test on the interactive & simulated environment.
PDF (duplicate of the test engine): the contents are the same as the test engine, support printing.

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Once download and installed on your PC, you can practice DP-420 test questions, review your questions & answers using two different options' practice exam' and 'virtual exam'.
Virtual Exam - test yourself with exam questions with a time limit.
Practice Exam - review exam questions one by one, see correct answers.

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Yes, you will enjoy one year free update after purchase. If there is any update, our system will automatically send the updated study material to your payment email.

What's the applicable operating system of the DP-420 test engine?

Online Test Engine can supports Windows / Mac / Android / iOS, etc., because it is the software based on WEB browser. You can use it on any electronic device and practice with self-paced.
Online Test Engine supports offline practice, while the precondition is that you should run it with the internet at the first time.
Self Test Engine is suitable for windows operating system, running on the Java environment, and can install on multiple computers.
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All the products are updated frequently but not on a fixed date. Our professional team pays a great attention to the exam updates and they always upgrade the content accordingly.

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Yes. We have the money back guarantee in case of failure by our products. The process of money back is very simple: you just need to show us your failure score report within 60 days from the date of purchase of the exam. We will then verify the authenticity of documents submitted and arrange the refund after receiving the email and confirmation process. The money will be back to your payment account within 7 days.

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