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Free Microsoft DP-420 Exam Questions

Absolute Free DP-420 Exam Practice for Comprehensive Preparation 

  • Microsoft DP-420 Exam Questions
  • Provided By: Microsoft
  • Exam: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
  • Certification: Microsoft Certified Azure Cosmos DB Developer Specialty
  • Total Questions: 291
  • Updated On: Sep 23, 2026
  • Rated: 4.9 |
  • Online Users: 582
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  • Question 1
    • You are working on an app that will save the device metrics produced every minute by various IoT devices. You decide to collect the data for two entities; the devices and the device metrics produced by each device. You were about to create two containers for these identified entities but suddenly your data engineer suggests you place both entities in a single container, not two different containers.  You would like to be able to track the general data of the device and the number of metrics collections per device. How could we keep track of these entities inside the container?

      Answer: B
  • Question 2
    • You need to implement an Azure Data Factory data flow that will utilize an Azure Cosmos DB (SQL API) sink to write a dataset. The data flow will utilize 2000 Apache Spark partitions.

      You need to make sure that the ingestion from every Spark partition is balanced to optimize throughput. Which of the following sink setting would you configure?


      Answer: B
  • Question 3
    • You have an Azure Cosmos DB Core (SQL) API account that is used by 10 web apps. You need to analyze the data stored in the account by using Apache Spark to create machine learning models. The solution must NOT affect the performance of the web apps. Which two actions should you perform? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

      Answer: A,D
  • Question 4

    • 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? 


      Answer: D
  • Question 5

    • You are designing an Azure Cosmos DB for NoSQL solution to store data from IoT devices. Writes from the devices will occur every second. Data will be retained indefinitely.

      The following is a sample of the data.


      You need to select a partition key that meets the following requirements for writes:

      • Minimizes the partition skew

      • Avoids capacity limits

      • Avoids hot partitions

      What should you do?



      Answer: B
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