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Exam Code: DP-420
Exam Questions: 291
Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
Updated: 23 Sep, 2026
Question 1

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?

Options :
Answer: B

Question 2

You have a container named container1 in an Azure Cosmos DB Core (SQL) API account. You need to provide a user named User1 with the ability to insert items into container1 by using role-based access control (RBAC). The solution must use the principle of least privilege. Which roles should you assign to User1? 

Options :
Answer: D

Question 3

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?

Options :
Answer: A

Question 4

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 conflictingItems parameter to resolve
conflict.
Does this meet the goal? 

Options :
Answer: A

Question 5

Azure Cosmos DB offers the ability to automatically delete the items from a container after a specific time period. Which property of a container do you need to specify the automatically purge items after a certain number of seconds?

Options :
Answer: C

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