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Exam Code DA0-002
Exam Name CompTIA Data+ Exam (2025)
Vendor CompTIA
Total Questions 121
Last Updated 26-Oct, 2026
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Free DA0-002 Practice Questions

Explore 5 free practice questions for the CompTIA DA0-002 exam and review the answers and explanations to support your preparation.

  1. Question 1

    Single answer

    [Visualization and Reporting] A data analyst is generating a custom report for a Chief Executive
    Officer's executive meeting. Later, the analyst learns that other custom reports will be required for
    future executive meetings. Which of the following delivery methods should the analyst use?

    • Option A:
      Adhoc 
      Correct
    • Option B:
      Real-time 
      Correct
    • Option C:
      Recurring 
      Correct
    • Option D:
      Self-service
      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: C

    Explanation

    C. Recurring is the correct answer because the analyst has learned that similar reports will be needed for future executive meetings. A recurring report can be scheduled to generate automatically at regular intervals, ensuring consistent and timely delivery without creating a new report each time. This approach improves efficiency, reduces manual effort, and is ideal for reports that are required repeatedly. Therefore, a recurring delivery method best fits the scenario.
  2. Question 2

    Single answer

    [Data Governance] Which of the following explains the purpose of UAT?

    • Option A:
      To begin the software application development process to enhance user experience
      Correct
    • Option B:
      To ensure all parts of the software application work together after each sprint
      Correct
    • Option C:
      To review software application crashes, create patches, and deploy to users
      Correct
    • Option D:
      To validate and verify that a software application meets the needs and requirements of users explanation
      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: D

    Explanation

    D. To validate and verify that a software application meets the needs and requirements of users is correct because User Acceptance Testing (UAT) is performed by end users or stakeholders to confirm that the system works as expected in real-world scenarios. It ensures the application meets business requirements and is suitable for release. UAT happens after system and integration testing and focuses on user satisfaction rather than technical debugging. Therefore, its main purpose is validation against user needs and requirements.
  3. Question 3

    Multiple answers

    [Data Concepts and Environments]
    A report triggers an error that prevents information from being displayed. However, the report was
    functional before a database upgrade. Which of the following should a data analyst do first to
    troubleshoot the problem?

    • Option A:
      Ensure the system has permissions for the report service.


      Correct
    • Option B:
      Change the report's refresh rate.


      Correct
    • Option C:
      Verify the connection to the database.


      Correct
    • Option D:
      Check whether the data structures were modified.
      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: C

    Explanation

    The first step in troubleshooting a report that was working before a database upgrade is to confirm whether the report can still connect to the database. Database upgrades often cause connection issues due to changes in endpoints, credentials, or drivers. Before checking deeper issues like schema changes or permissions, it is best practice to first ensure the data source connection is still valid. If the connection works, then further investigation into structural changes can follow.
  4. Question 4

    Single answer

    [Data Acquisition and Preparation]
    Which of the following best describes the semi-structured data that is gathered when web scraping?


    • Option A:
      JSON


      Correct
    • Option B:
      CSV


      Correct
    • Option C:
      CSS

      Correct
    • Option D:
      HTML
      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: D

    Explanation

    Web scraping collects data directly from web pages, and those pages are originally written in HTML, which is considered semi-structured because it has a flexible tag-based format rather than a strict tabular structure. While scraped data is often later converted into formats like JSON, the actual source format being extracted from websites is HTML. CSV is structured data, CSS is for styling web pages, and JSON is a structured/semi-structured format but not the raw format typically gathered during scraping.
  5. Question 5

    Single answer

    [Visualization and Reporting]

    Which of the following is the best tool for creating a dynamic dashboard?

    • Option A:
      Power BI

      Correct
    • Option B:
      RStudio


      Correct
    • Option C:
      Excel

      Correct
    • Option D:
      SAS
      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: A

    Explanation

    Power BI is specifically designed for building interactive and dynamic dashboards with real-time data connections, visualizations, and easy sharing capabilities. It allows users to drill down into data, apply filters, and update visuals automatically as data changes. While Excel can create basic dashboards and RStudio or SAS are powerful for analysis and statistical work, Power BI is the most suitable and widely used tool for dynamic business dashboards.