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

Microsoft DP-420 Exam Questions

Exam Name: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
Exam Code: DP-420
Related Certification(s): Microsoft Azure Cosmos DB Developer Specialty Certification
Certification Provider: Microsoft
Actual Exam Duration: 100 Minutes
Number of DP-420 practice questions in our database: 144 (updated: Mar. 16, 2026)
Expected DP-420 Exam Topics, as suggested by Microsoft :
  • Topic 1: Design and Implement Data Models: This topic equips Microsoft developers to design and implement non-relational data models for Azure Cosmos DB for NoSQL, emphasizing partitioning strategies, database sizing, and scaling. Developers master connectivity using the Azure Cosmos DB SDK and SQL language for NoSQL, ensuring seamless data access. Additionally, server-side programming with JavaScript empowers robust solutions tailored to specific application needs.
  • Topic 2: Design and Implement Data Distribution: Microsoft developers delve into designing replication strategies and implementing multi-region writes for Azure Cosmos DB. These skills ensure high availability, fault tolerance, and enhanced global performance for distributed applications, making them vital for enterprise-grade solutions.
  • Topic 3: Integrate an Azure Cosmos DB Solution: This topic focuses on enabling analytical workloads and integrating Azure Cosmos DB across services. Developers learn to leverage cross-service integrations for cohesive solutions, driving advanced analytics and operational efficiency in cloud-native applications.
  • Topic 4: Optimize an Azure Cosmos DB Solution: Developers gain expertise in optimizing query performance using Azure Cosmos DB for NoSQL APIs, implementing change feeds, and crafting effective indexing strategies. This topic ensures solutions are performant, scalable, and adaptive to evolving data requirements, enhancing application responsiveness.
  • Topic 5: Maintain an Azure Cosmos DB Solution: This section covers monitoring, troubleshooting, and securing Azure Cosmos DB solutions. Developers master backup and restore procedures, implement data movement, and streamline processes using DevOps. These skills ensure operational reliability and safeguard data integrity in production environments.
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Leanna

6 days ago
Happy to announce that I passed the Azure Cosmos DB exam! Pass4Success practice questions were crucial. There was a challenging question on maintaining an Azure Cosmos DB solution, specifically about configuring multi-region writes. I wasn't sure of the best approach, but I still passed!
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Pamella

14 days ago
The tricky questions about multi-region writes and conflict resolution were brutal. pass4success practice questions walked through conflict resolution strategies step by step, which helped me pick the right approach on exam day.
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Denny

23 days ago
The initial doubt about architectural patterns and throughput planning was real; pass4success clarified complex topics with practical labs and feedback that sparked confidence. Stay persistent and believe in your preparation—you'll excel!
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Jame

1 month ago
Aced the Microsoft Cosmos DB exam! Pass4Success made it possible with their up-to-date material. Thanks a bunch!
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Major

1 month ago
My nerves fluttered at the thought of Azure specifics and Cosmos DB internalization; p4s gave me focused, exam-style practice and mentor-like guidance that steadied my nerves. Take a deep breath and push forward—success is within reach!
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Timmy

1 month ago
I passed the Microsoft Azure Cosmos DB exam, and Pass4Success practice questions were a big help. One question that had me second-guessing was about optimizing an Azure Cosmos DB solution, particularly how to use indexing policies to improve query performance. Despite my doubts, I passed!
upvoted 0 times
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Johnathon

2 months ago
Before starting, I worried I wouldn't grasp distributed data management well enough; p4s broke it into digestible chunks and simulated exams that built confidence. You've trained for this moment—go show them what you can do!
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Quentin

2 months ago
Passing the Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB exam was a huge relief. The Pass4Success practice exams helped me identify and address my knowledge gaps.
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Maryann

2 months ago
Excited to share that I passed the Azure Cosmos DB exam! The practice questions from Pass4Success were invaluable. There was a tough question on designing and implementing data distribution, specifically about choosing the right consistency level for a global application. I wasn't completely confident, but I passed!
upvoted 0 times
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Tina

2 months ago
I felt the squeeze of anxiety as the exam date approached, unsure I could apply cloud-native thinking under pressure; P4S offered concise summaries and practical exercises that made the topics click. Believe in your study journey—you're on the right path!
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Page

3 months ago
Nervousness hit me hard during the initial prep, wondering if I could remember all the Azure Cosmos DB nuances; P4S provided clear milestones, hands-on labs, and supportive feedback that boosted my belief in myself. Keep grinding—you're closer to success than you think!
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Bea

3 months ago
I was nervous before the Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB exam, but the pass4success practice tests boosted my confidence. My advice? Revise thoroughly and trust your preparation.
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Teri

3 months ago
If you want to pass the Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB exam, the p4s practice exams are a must. Stay focused on the exam objectives, and you'll be golden.
upvoted 0 times
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Coral

3 months ago
I passed the Microsoft Azure Cosmos DB exam, and Pass4Success was instrumental. One question I found challenging was about designing and implementing data models, particularly how to handle schema changes. Even though I was unsure, I succeeded!
upvoted 0 times
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Johna

4 months ago
Acing the Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB exam was so satisfying. One key tip? Manage your time wisely during the exam by practicing with p4s.
upvoted 0 times
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Raymon

4 months ago
Just cleared the Azure Cosmos DB exam! Pass4Success practice questions were a huge help. There was a tricky question on integrating an Azure Cosmos DB solution with Azure Event Grid. I wasn't sure about the best way to handle event-driven architecture, but I still made it through.
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Dominic

4 months ago
P4S practice exams were a game-changer for me. Don't underestimate the value of practicing with realistic questions - it really helped me identify my weak areas.
upvoted 0 times
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Mauricio

4 months ago
Passing the Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB exam was a breeze with the p4s practice exams. My top tip? Prioritize understanding the core concepts, not just memorizing.
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Esteban

5 months ago
I struggled with partitioning and throughput provisioning, especially when predicting RU/s for burst workloads. Pass4Success drills simulated the exact pricing and performance tradeoffs, so I could plan capacity confidently.
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Martina

5 months ago
The toughest part for me was understanding Cosmos DB consistency levels and how they impact latency and throughput; p4s practice exams broke down scenarios clearly and mapped questions to real-world configurations, which finally made sense.
upvoted 0 times
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Magnolia

5 months ago
Whew, that Cosmos DB cert was tough! Grateful for Pass4Success's relevant practice questions. Passed with flying colors!
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Hui

5 months ago
I was jittery before the exam, doubting if I could juggle Cosmos DB concepts with design patterns; Pass4Success gave me structured practice, steady guidance, and real-world scenarios that built true confidence. To everyone chasing this certification, stay focused and trust your preparation—you've got this!
upvoted 0 times
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Brandon

6 months ago
Just passed the Azure Cosmos DB exam! Pass4Success's questions were spot-on. Thanks for the quick prep!
upvoted 0 times
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Kaitlyn

6 months ago
Passed the Azure Cosmos DB cert! Pass4Success's targeted questions were exactly what I needed.
upvoted 0 times
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Mari

6 months ago
I recently passed the Microsoft Azure Cosmos DB exam, thanks to Pass4Success. One challenging question was about maintaining an Azure Cosmos DB solution, specifically how to implement backup and restore strategies. Even though I was unsure, I succeeded!
upvoted 0 times
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Adelaide

7 months ago
Cosmos DB exam conquered! Huge thanks to Pass4Success for their accurate and time-saving resources.
upvoted 0 times
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German

7 months ago
I passed the Azure Cosmos DB exam, and Pass4Success was a key resource. One question that had me stumped was about optimizing an Azure Cosmos DB solution, specifically how to use RU/s effectively to manage costs. Despite my uncertainty, I passed!
upvoted 0 times
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Wilburn

8 months ago
Just became Azure Cosmos DB certified! Pass4Success's materials were spot-on for exam prep.
upvoted 0 times
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Lili

9 months ago
Nailed the Microsoft Cosmos DB exam! Pass4Success's relevant questions were a huge time-saver.
upvoted 0 times
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Alecia

12 months ago
Azure Cosmos DB certified! Pass4Success's concise materials helped me prepare quickly and effectively.
upvoted 0 times
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Tiffiny

1 year ago
Passed the Cosmos DB exam on my first try! Pass4Success's focused content made all the difference.
upvoted 0 times
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Ressie

1 year ago
Thank you Pass4Success! Your practice questions were key to my Azure Cosmos DB exam success.
upvoted 0 times
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Ivory

1 year ago
Thrilled to share that I passed the Microsoft Azure Cosmos DB exam! Pass4Success practice questions were essential. There was a difficult question on designing and implementing data distribution, particularly about handling data consistency across multiple regions. I wasn't confident, but I passed!
upvoted 0 times
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Erick

1 year ago
Microsoft Cosmos DB cert acquired! Couldn't have done it without Pass4Success's efficient study materials.
upvoted 0 times
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Rosalind

1 year ago
I passed the Azure Cosmos DB exam, and Pass4Success practice questions were a great help. One tricky question was about designing and implementing data models, specifically how to model relationships between entities. Even though I was unsure, I passed!
upvoted 0 times
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Shawnta

1 year ago
Pass4Success rocks! Their prep materials helped me clear the Azure Cosmos DB exam in no time.
upvoted 0 times
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Cheryl

1 year ago
I successfully passed the Microsoft Azure Cosmos DB exam, thanks to Pass4Success. One question that puzzled me was about integrating an Azure Cosmos DB solution with Azure Logic Apps. I wasn't entirely sure how to set up the integration, but I managed to pass!
upvoted 0 times
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Laticia

1 year ago
Happy to announce that I passed the Azure Cosmos DB exam! Pass4Success practice questions were crucial. There was a challenging question on maintaining an Azure Cosmos DB solution, specifically about configuring multi-region writes. I wasn't sure of the best approach, but I still passed!
upvoted 0 times
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Wendell

1 year ago
Are there questions on optimizing query performance?
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Noemi

1 year ago
Aced the Microsoft Cosmos DB exam! Pass4Success really came through with relevant practice questions.
upvoted 0 times
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Catarina

1 year ago
I passed the Microsoft Azure Cosmos DB exam, and Pass4Success practice questions were a big help. One question that had me second-guessing was about optimizing an Azure Cosmos DB solution, particularly how to use indexing policies to improve query performance. Despite my doubts, I passed!
upvoted 0 times
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Mari

1 year ago
How about questions on monitoring and optimizing throughput?
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Gregg

1 year ago
Excited to share that I passed the Azure Cosmos DB exam! The practice questions from Pass4Success were invaluable. There was a tough question on designing and implementing data distribution, specifically about choosing the right partition strategy for a global application. I wasn't completely confident, but I passed!
upvoted 0 times
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Sage

1 year ago
Are there questions on implementing server-side programming?
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Glen

1 year ago
I passed the Microsoft Azure Cosmos DB exam, and Pass4Success was instrumental. One question I found challenging was about designing and implementing data models, particularly how to use partition keys effectively. Even though I was unsure, I succeeded!
upvoted 0 times
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Alysa

1 year ago
Whew, that Azure Cosmos DB cert was tough! Grateful for Pass4Success - their materials were a lifesaver.
upvoted 0 times
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Sanjuana

1 year ago
How much emphasis is there on Cosmos DB's analytical capabilities?
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Gilma

1 year ago
Just cleared the Azure Cosmos DB exam! Pass4Success practice questions were a huge help. There was a tricky question on integrating an Azure Cosmos DB solution with Azure Functions. I wasn't sure about the best way to trigger a function from a Cosmos DB change feed, but I still made it through.
upvoted 0 times
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Matilda

2 years ago
Throughput management is a key focus. You'll see questions on provisioning and scaling RUs, implementing autoscale, and monitoring throughput usage. Understand how to optimize for cost-effective performance. Pass4Success materials had great scenarios on throughput optimization.
upvoted 0 times
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Precious

2 years ago
I recently passed the Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB exam, thanks to the practice questions from Pass4Success. One question that stumped me was about maintaining an Azure Cosmos DB solution, specifically how to handle automatic failover for high availability. Despite my uncertainty, I managed to pass!
upvoted 0 times
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Youlanda

2 years ago
Just passed the Azure Cosmos DB exam! Thanks Pass4Success for the spot-on practice questions. Saved me loads of time.
upvoted 0 times
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Zachary

2 years ago
Passing the Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB exam was a great achievement for me, and I owe a big thanks to Pass4Success for their helpful practice questions. The topic of enabling offline development by using the Azure Cosmos DB emulator was crucial for my exam preparation. One question that I recall from the exam was about setting up and using the Azure Cosmos DB emulator for offline development. Despite some initial confusion, I managed to pass the exam successfully.
upvoted 0 times
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Leota

2 years ago
The exam experience was challenging but rewarding. I'm grateful for the comprehensive preparation materials from Pass4Success that helped me pass in a short time.
upvoted 0 times
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Maurine

2 years ago
My exam experience for the Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB was successful, thanks to Pass4Success practice questions. I found the topic of implementing data access by using the Azure Cosmos DB SQL language to be particularly challenging. One question that I remember from the exam was about optimizing data access performance using the SQL language in Azure Cosmos DB. Despite some uncertainty, I was able to pass the exam.
upvoted 0 times
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Aracelis

2 years ago
Just passed the Azure Cosmos DB exam! Watch out for questions on multi-region write replication - they test your understanding of conflict resolution strategies. Brush up on choosing between strong and eventual consistency models. Big thanks to Pass4Success for their spot-on practice questions that helped me prepare quickly!
upvoted 0 times
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Kattie

2 years ago
The exam covered various consistency levels in Cosmos DB. Be prepared for scenarios where you need to select the appropriate consistency level based on application requirements. Understanding trade-offs between consistency and performance is crucial.
upvoted 0 times
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Teddy

2 years ago
I recently passed the Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB exam with the help of Pass4Success practice questions. The exam covered topics such as designing partitioning for workloads that require multiple partition keys. One question that stood out to me was related to designing a partitioning strategy for a scenario where multiple partition keys were needed. I wasn't completely sure of the answer, but I managed to pass the exam.
upvoted 0 times
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Free Microsoft DP-420 Exam Actual Questions

Note: Premium Questions for DP-420 were last updated On Mar. 16, 2026 (see below)

Question #1

You have an Azure Cosmos DB database named databaset contains a container named container1. The container1 container store product data and has the following indexing policy.

Which path will be indexed?

Reveal Solution Hide Solution
Correct Answer: A

The indexing policy has an includedPaths array that contains only one path: /product/brand/? . This means that only the properties under /product/brand will be indexed. The ?symbol indicates that only scalar values will be indexed, not arrays or objects1.

The excludedPaths array contains a single path: /* . This means that all other properties will be excluded from indexing.The * symbol indicates a wildcard that matches any property name1.

Therefore, the paths /product/category , /product/[ ]/category , and /product/brand/tailspin will not be indexed.


Question #2

You have an Azure subscription. The subscription contains an Azure Cosmos DB for NoSQL account named account! that hosts a container named Container 1. Container! has a provisioned throughput of 100 request units per second (RU/s) and uses a single physical partition.

Vou are evaluating the available throughput for Container1.

What is the maximum burst capacity that Container1 can accumulate?

Reveal Solution Hide Solution
Correct Answer: C

Question #3

You plan to create an Azure Cosmos DB Core (SQL) API account that will use customer-managed keys stored in Azure Key Vault.

You need to configure an access policy in Key Vault to allow Azure Cosmos DB access to the keys.

Which three permissions should you enable in the access policy? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.

Reveal Solution Hide Solution
Correct Answer: A, B, G

Question #4

You have a container named container! in an Azure Cosmos DB for NoSQL account.

You need to provide a user named User1 with the ability to insert items into container1 by using role-based access The solution must use the principle of least privilege.

Which roles should you assign to User1?

Reveal Solution Hide Solution
Correct Answer: A

The Cosmos DB Built-in DataContributor roleprovides the necessary permissions to insert items into a container in an Azure Cosmos DB for NoSQL account. This role grants theminimum required privilegesfor the described task, adhering to the principle of least privilege.


Question #5

You have an Azure subscription. The subscription contains an Azure Cosmos DB for NoSQL account named account1 that hosts a container named Devices. Devices has a partition key named type.

You are evaluating the resource utilization of the query. How will the query be executed?

Reveal Solution Hide Solution
Correct Answer: C

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