Microsoft DP-420 Exam Dumps

Get All Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Exam Questions with Validated Answers

DP-420 Pack
Vendor: Microsoft
Exam Code: DP-420
Exam Name: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
Exam Questions: 194
Last Updated: August 7, 2026
Related Certifications: Azure Cosmos DB Developer Specialty
Exam Tags: Cloud Certifications, Microsoft Azure Certifications, Data Management Certifications, Data and AI Certifications Intermediate Microsoft Developers
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Free Microsoft DP-420 Exam Actual Questions

Question No. 1

You plan to create an Azure Cosmos DB for NoSQL account that will have a single write region and three read regions. You need to set the consistency level for the account. The solution must meet the following requirements:

* In the write region, writes must replicate synchronously across at least three replicas.

* In the read regions, reads must see writes in order for transactional batches.

* Throughput for reads and writes must be maximized.

Which consistency level should you select?

Show Answer Hide Answer
Correct Answer: C

Question No. 2

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 conflict sent to the conflict feed.

Solution: You set ConfilictResolutionMode to Custom. You Set ResolutionProcedures to a custom stored procedure. You configure the custom stored procedure to use the isTomstone parameter to resolve conflict.

Does this meet the goal?

Show Answer Hide Answer
Correct Answer: B

The solution is incorrect because there is no 'isTom' parameter in the Azure Cosmos DB SDK. The correct parameter is 'isTombstone'.


Question No. 3

You are building an application that will store data in an Azure Cosmos DB for NoSQL account. The account uses the session default consistency level. The account is used by five other applications. The account has a single read-write region and 10 additional read regions.

Approximately 20 percent of the items stored in the account are updated hourly.

Several users will access the new application from multiple devices.

You need to ensure that the users see the same item values consistently when they browse from the different devices. The solution must not affect the other applications.

Which two actions should you perform? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.

Show Answer Hide Answer
Correct Answer: B, C

Question No. 4

The settings for a container in an Azure Cosmos DB Core (SQL) API account are configured as shown in the following exhibit.

Which statement describes the configuration of the container?

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Correct Answer: C

When DefaultTimeToLive is -1 then your Time to Live setting is On (No default)

Time to Live on a container, if present and the value is set to '-1', it is equal to infinity, and items don't expire by default.

Time to Live on an item:

This Property is applicable only if DefaultTimeToLive is present and it is not set to null for the parent container.

If present, it overrides the DefaultTimeToLive value of the parent container.


Question No. 5

You have an Azure Cosmos DB database that hosts a container named container1.

You need to ensure that the items stored in contained will NOT expire unless their TTL value is set explicitly. What should you do?

Show Answer Hide Answer
Correct Answer: B

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