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Free CompTIA DA0-002 Exam Braindumps (page: 2)

Page 2 of 15
PDF with 111 Questions

[Visualization and Reporting]
Which of the following is the best tool for creating a dynamic dashboard?

  1. Power BI
  2. RStudio
  3. Excel
  4. SAS

Answer(s): A



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

  1. JSON
  2. CSV
  3. CSS
  4. HTML

Answer(s): A



[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?

  1. Ensure the system has permissions for the report service.
  2. Change the report's refresh rate.
  3. Verify the connection to the database.
  4. Check whether the data structures were modified.

Answer(s): C



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

  1. To begin the software application development process to enhance user experience
  2. To ensure all parts of the software application work together after each sprint
  3. To review software application crashes, create patches, and deploy to users
  4. To validate and verify that a software application meets the needs and requirements of users

Answer(s): D



[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?

  1. Ad hoc
  2. Real-time
  3. Recurring
  4. Self-service

Answer(s): C



[Visualization and Reporting]
A grocery store wants to view the revenue from the previous year, highlighting individual departments.
Which of the following is the most appropriate chart to communicate this information?

  1. Gantt
  2. Pie
  3. Area
  4. Line

Answer(s): B



[Data Acquisition and Preparation]
A data analyst receives the following sales data for a convenience store:
Item
Quantity
Price
Chocolate Bars
$1.99
Vanilla Ice Bars
$4.99
Chocolate Wafers
$0.99
Peanut Butter
$2.99
Cups
$4.99
Strawberry Jam
$4.99
Chocolate Cake
$6.99
Milk Chocolate
$2.99
Almonds

$2.99
The analyst needs to provide information on the products that contain chocolate.
Which of the following RegEx should the analyst use to filter the chocolate products?

  1. Chocolate!
  2. Chocolate$
  3. %Chocolate&
  4. #Chocolate#$

Answer(s): B



[Visualization and Reporting]
A manager wants to use the information in a recurring report on incomplete timesheets for the prior month to guide employee outreach.
Which of the following report types is the best for this task?

  1. Summary
  2. Infographic
  3. Snapshot
  4. Ad hoc

Answer(s): A






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