Free CompTIA DA0-001 Practice Test & Real Exam Questions

  • Exam Code/Number: DA0-001
  • Exam Name/Title: CompTIA Data+ Certification Exam
  • Certification Provider: CompTIA
  • Corresponding Certification: CompTIA Data+
  • Exam Questions: 398
  • Updated On: Jun 26, 2026
A client wants a new report that will be automatically emailed to all global sales teams on a weekly basis.
Each sales team must be able to view the sales for its region and the combined sales for all regions. Which of the following would be the most efficient method for meeting the requirements?
Correct Answer: C Vote an answer
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A Chief Executive Officer (CEO) is requesting more up-to-date sales data for improved visibility prior to month-end. An analyst must determine the frequency of a sales report that was previously distributed on an as- needed basis. Which of the following would be the most appropriate frequency for this report?
Correct Answer: A Vote an answer
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An analyst is preparing a report that contains weather data. The temperatures are shown in Fahrenheit. but they must be reported in Celsius. Which of the following should the analyst do to fix this issue?
Correct Answer: C Vote an answer
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A data analyst has been asked to merge the tables below, first performing an INNER JOIN and then a LEFT JOIN:

Customer Table -
In-store Transactions -

Which of the following describes the number of rows of data that can be expected after performing both joins in the order stated, considering the customer table as the main table?
Correct Answer: A Vote an answer
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Given the following report:

Which of the following components need to be added to ensure the report is point-in-time and static? (Choose two.)
Correct Answer: B Vote an answer
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A data analyst is attempting to understand how ice cream consumption is affected by different attributes. such as cost, temperature. and income level. Which of the following regression analyses should the data analyst perform to understand this relationship?
Correct Answer: D Vote an answer
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A data analyst has been asked to derive a new variable labeled "Promotion_flag" based on the total quantity sold by each salesperson. Given the table below:

Which of the following functions would the analyst consider appropriate to flag "Yes" for every salesperson who has a number above 1,000,000 in the Quantity_sold column?
Correct Answer: C Vote an answer
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An analyst is training a new coworker on the importance of data governance and is focusing on security requirements. Which of the following should the analyst include in the training?
(Select two).
Correct Answer: A,E Vote an answer
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Which of the following data types best describe 4Ac1? (Select two).
Correct Answer: A,D Vote an answer
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A data analyst is designing a dashboard that will provide a story of sales and determine which site is providing the highest sales volume per customer The analyst must choose an appropriate chart to include in the dashboard. The following data is available:

Which of the following types of charts should be considered?
Correct Answer: C Vote an answer
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An analyst modified a data set that had a number of issues. Given the original and modified versions:

Which of the following data manipulation techniques did the analyst use?
Correct Answer: D Vote an answer
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Which of the following is the best variable formal to store a customer's age using the least possible amount of storage data?
Correct Answer: C Vote an answer
Which of the following best describes an exploratory analysis?
Correct Answer: D Vote an answer
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The director of operations at a power company needs data to help identify where company resources should be allocated in order to monitor activity for outages and restoration of power in the entire state. Specifically, the director wants to see the following:
* County outages
* Status
* Overall trend of outages
INSTRUCTIONS:
Please, select each visualization to fit the appropriate space on the dashboard and choose an appropriate color scheme. Once you have selected all visualizations, please, select the appropriate titles and labels, if applicable.
Titles and labels may be used more than once.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
Correct Answer:
Power outages
Explanation:
This is a simulation question that requires you to create a dashboard with visualizations that meet the director' s needs. Here are the steps to complete the task:
* Drag and drop the visualization that shows the county outages on the top left space of the dashboard.
This visualization is a map of the state with different colors indicating the number of outages in each county. You can choose any color scheme that suits your preference, but make sure that the colors are consistent and clear. For example, you can use a gradient of red to show the counties with more outages and green to show the counties with less outages.
* Drag and drop the visualization that shows the status of the outages on the top right space of the dashboard. This visualization is a pie chart that shows the percentage of outages that are active, restored, or pending. You can choose any color scheme that suits your preference, but make sure that the colors are distinct and easy to identify. For example, you can use red for active, green for restored, and yellow for pending.
* Drag and drop the visualization that shows the overall trend of outages on the bottom space of the dashboard. This visualization is a line graph that shows the number of outages over time. You can choose any color scheme that suits your preference, but make sure that the color is visible and contrasted with the background. For example, you can use blue for the line and white for the background.
* Select appropriate titles and labels for each visualization. Titles and labels may be used more than once.
For example, you can use "County Outages" as the title for the map, "Status" as the title for the pie chart, and "Trend" as the title for the line graph. You can also use "County", "Number of Outages",
"Active", "Restored", "Pending", "Time", and "Number of Outages" as labels for the axes and legends of the visualizations.
An organizational document governs role-based and group-based requirements. Which of the following data requirements should be used?
Correct Answer: A Vote an answer
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