Microsoft DP-420 practice materials Questions Answers

Exam Code:
DP-420
Exam Name:
Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Exam
Last Update:
Jun 01,2026

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Microsoft DP-420 Questions for Azure Cosmos DB Developer Specialty Certification Exam 2026

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Page: 1 / 21
Total Questions: 102

Questions & Answers PDF

• Question 1

  

  You have a database named db1 in an Azure Cosmos DB f You have a third-party application that is exposed thro You need to migrate data from the application to a What should you use?

  • Database Migration Assistant
  • Azure Data Factory
  • Azure Migrate

  Reveal Answer Answer: B Next Question

• Question 2

  

  You configure multi-region writes for account1.You need to ensure that App1 supports the new configuration for account1. The solution must meet the business requirements and the product catalog requirements.What should you do?

  • Set the default consistency level of accountl to bounded staleness.
  • Create a private endpoint connection.
  • Modify the connection policy of App1.
  • Increase the number of request units per second (RU/s) allocated to the con-product and con-productVendor containers.

  Reveal Answer Answer: D Next Question

• Question 3

  

  You have an Azure Cosmos DB for NoSQL account.The change feed is enabled on a container named invoice.You create an Azure function that has a trigger on the change feed.What is received by the Azure function?

  • all the properties of the updated items
  • only the partition key and the changed properties of the updated items
  • all the properties of the original items and the updated items
  • only the changed properties and the system-defined properties of the updated items
  • all the properties of the updated items

  Reveal Answer Answer: A Next Question

• Question 4

  

  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.

  • Wrap Key
  • Get
  • List
  • Update
  • Sign
  • Verify
  • Unwrap Key

  Reveal Answer Answer: A, B, G Next Question

• Question 5

  

  You need to configure an Apache Kafka instance to ingest data from an Azure Cosmos DB Core (SQL) API account. The data from a container named telemetry must be added to a Kafka topic named iot. The solution must store the data in a compact binary format.Which three configuration items should you include in the solution? Each correct answer presents part of the solution.NOTE: Each correct selection is worth one point.

  • 'connector.class': 'com.azure.cosmos.kafka.connect.source.CosmosDBSourceConnector'
  • 'key.converter': 'org.apache.kafka.connect.json.JsonConverter'
  • 'key.converter': 'io.confluent.connect.avro.AvroConverter'
  • 'connect.cosmos.containers.topicmap': 'iot#telemetry'
  • 'connect.cosmos.containers.topicmap': 'iot'
  • 'connector.class': 'com.azure.cosmos.kafka.connect.source.CosmosDBSinkConnector'

  Reveal Answer Answer: C, D, F Next Question

• Question 6

  

  You have an Azure Cosmos DB Core (SQL) API account.You run the following query against a container in the account.SELECTIS_NUMBER('1234') AS A,IS_NUMBER(1234) AS B,IS_NUMBER({prop: 1234}) AS CWhat is the output of the query?

  • [{'A': false, 'B': true, 'C': false}]
  • [{'A': true, 'B': false, 'C': true}]
  • [{'A': true, 'B': true, 'C': false}]
  • [{'A': true, 'B': true, 'C': true}]

  Reveal Answer Answer: A Next Question

• Question 7

  

  You are implementing an Azure Data Factory data flow that will use an Azure Cosmos DB (SQL API) sink to write a dataset. The data flow will use 2,000 Apache Spark partitions.You need to ensure that the ingestion from each Spark partition is balanced to optimize throughput.Which sink setting should you configure?

  • Throughput
  • Write throughput budget
  • Batch size
  • Collection action

  Reveal Answer Answer: C Next Question

• Question 8

  

  You plan to create an Azure Cosmos DB account that will use the NoSQL API.You need to create a grouping strategy for items that will be stored in the account. The solution must ensure that write and read operations on the items can be performed within the same transact!What should you use to group the items?

  • logical partitions
  • physical partitions
  • databases
  • containers

  Reveal Answer Answer: A Next Question

• Question 9

  

  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?

  • Yes
  • No

  Reveal Answer Answer: A Next Question

• Question 10

  

  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 Core (SQL) API account named account 1 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 an Azure Monitor alert to trigger the function.Does this meet the goal?

  • Yes
  • No

  Reveal Answer Answer: A Next Question

Page: 1 / 21
Total Questions: 102

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