Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB - testinsides DP-420 dumps

DP-420 real exams

Exam Code: DP-420

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

Updated: Oct 13, 2026

Q & A: 281 Questions and Answers

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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.

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 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Design and implement data models35-40%- Design partitioning strategy
  • 1. Choose partition key based on workload
  • 2. Plan for distribution and throughput
- Plan sizing and scaling
  • 1. Provision throughput and storage
  • 2. Select consistency levels
- Design and implement non-relational data models
  • 1. Define primary and unique keys
  • 2. Configure time-to-live (TTL)
  • 3. Store multiple entity types in one container
  • 4. Reference between documents
  • 5. Denormalize data across documents
  • 6. Embed related entities in documents
  • 7. Identify data and access patterns
- Implement connectivity and data access
  • 1. Write efficient SQL queries
  • 2. Use SDKs to connect and operate
Topic 2: Design and implement data distribution5-10%- Manage data distribution and failover
  • 1. Define failover priorities
  • 2. Manage regional availability
- Design replication strategy
  • 1. Configure multi-region replication
  • 2. Implement multi-region write
Topic 3: Integrate an Azure Cosmos DB solution5-10%- Integrate with Azure services
  • 1. Connect to Azure Stream Analytics
  • 2. Use with Azure Functions, Logic Apps, Event Hubs
- Enable analytical workloads
  • 1. Configure analytical store
  • 2. Use Synapse Link
Topic 4: Optimize an Azure Cosmos DB solution15-20%- Define and implement indexing strategy
  • 1. Exclude or include properties
  • 2. Select index types and paths
- Work with change feed
  • 1. Trigger downstream workflows
  • 2. Process changes incrementally
- Optimize query performance
  • 1. Tune query structure and syntax
  • 2. Optimize throughput allocation
Topic 5: Maintain an Azure Cosmos DB solution25-30%- Monitor and troubleshoot
  • 1. Analyze metrics and logs
  • 2. Use Azure Monitor and Application Insights
- DevOps and automation
  • 1. Automate operations
  • 2. Deploy via ARM, Bicep, CLI
- Implement security
  • 1. Encrypt data at rest and in transit
  • 2. Manage authentication and authorization
- Implement backup and restore
  • 1. Perform point-in-time restore
  • 2. Configure periodic backup
- Manage data movement
  • 1. Import/export data
  • 2. Migrate between APIs or regions

Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Sample Questions:

Question #1

Hotspot Question
You plan to use a multi-region Azure Cosmos DB for NoSQL account to store data for a new application suite. The suite contains the applications shown in the following table.

Each application should use the weakest consistency level possible.
Which consistency level should you configure for each application? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Reveal Solution  Discussion  0

Correct Answer:


Explanation:
https://willvelida.medium.com/understanding-consistency-levels-in-azure-cosmos-db-77b90dbf3daa

Question #2

You have an Azure Cosmos DB database that contains a container named container1. The container1 container is configured with a maximum of 20,000 RU/s and currently contains 240 GB of data.
You need to estimate the costs of container1 based on the current usage.
How many RU/s will be charged?

  • A. 4,000
  • B. 240
  • C. 20,000
  • D. 24,000
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #3

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a database in an Azure Cosmos DB for NoSQL account that is configured for multi- region writes.
You need to use the Azure Cosmos DB SDK to implement the conflict resolution policy for a container. The solution must ensure that any conflicts are sent to the conflicts feed.
Solution: You set ConflictResolutionMode to LastWriterWins and you use the default settings for the policy.
Does this meet the goal?

  • A. No
  • B. Yes
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Explanation: Only visible for TestInsides members. You can sign-up / login (it's free).

Question #4

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have an Azure Cosmos DB for NoSQL account named account1 that uses autoscale throughput.
You need to run an Azure function when the normalized request units per second for a container in account1 exceeds a specific value.
Solution: You configure Azure Event Grid to send events to the function by using an Event Grid trigger in the function.
Does this meet the goal?

  • A. No
  • B. Yes
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Explanation: Only visible for TestInsides members. You can sign-up / login (it's free).

Question #5

Hotspot Question
You provision Azure resources by using the following Azure Resource Manager (ARM) template.

For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.

Reveal Solution  Discussion  0

Correct Answer:


Explanation:
Box 1: No
An alert is triggered when the DB key is regenerated, not when it is used.
Note: The az cosmosdb keys regenerate command regenerates an access key for a Azure Cosmos DB database account.
Box 2: No
Only an SMS action will be taken.
Emailreceivers is empty so no email action is taken.
Box 3: No
The trigger is fired when the database account has a new key regenerated not when an item with a new partition key value is created.
Reference: https://docs.microsoft.com/en-us/cli/azure/cosmosdb/keys

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