Free CompTIA DA0-001 Practice Test & Real Exam Questions
An e-commerce company recently tested a new website layout. The website was tested by a test group of customers, and an old website was presented to a control group. The table below shows the percentage of users in each group who made purchases on the websites:
Which of the following conclusions is accurate at a 95% confidence interval?
Which of the following conclusions is accurate at a 95% confidence interval?
Correct Answer: D
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A data analyst is developing a data dictionary that aligns with a company's data management processes and policies. Which of the following best describes what should be included in the data dictionary?
Correct Answer: B
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A data analyst for a media company needs to determine the most popular movie genre. Given the table below:
Which of the following must be done to the Genre column before this task can be completed?
Which of the following must be done to the Genre column before this task can be completed?
Correct Answer: C
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What R package makes it easy to work with dates?
Correct Answer: D
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Amanda needs to create a dashboard that will draw information from many other data sources and present it to business leaders.
Which one of the following tools is least likely to meet her needs?
Which one of the following tools is least likely to meet her needs?
Correct Answer: B
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Which of the following would be considered non-personally identifiable information?
Correct Answer: B
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A company needs a report that provides executives an overview and regional managers with both an overview and specifics. Which of the following reporting elements will achieve these results?
Correct Answer: D
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An analyst reviews the following table:
Which of the following data types is represented in the values in the RefNo column?
Which of the following data types is represented in the values in the RefNo column?
Correct Answer: A
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An analyst has written the following code:
SELECT *
FROM Cust_table
WHERE age > 60 AND City = "New York"
Which of the following criteria is the analyst retrieving?
SELECT *
FROM Cust_table
WHERE age > 60 AND City = "New York"
Which of the following criteria is the analyst retrieving?
Correct Answer: B
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A development company is constructing a new Init in its apartment complex. The complex has the following floor plans:
Using the average cost per square foot of the original floor plans. which of the following should be the price of the Rose Init?
Using the average cost per square foot of the original floor plans. which of the following should be the price of the Rose Init?
Correct Answer: D
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An analyst needs to determine the appropriate data type for the following sample data:
sample data collected:
Which of the following data types should be used for this data?
sample data collected:
Which of the following data types should be used for this data?
Correct Answer: C
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Consider two different datasets, one with gas prices and the other with food prices. Which of the following measures is most affected by outliers?
Correct Answer: A
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What analytics suite is offered by Microsoft and directly integrates with SQL Server Databases?
Correct Answer: A
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Given the following grocery store orders:
If a query is made to the table with the following logic:
Order_Total > 132 OR (Order Total >= 25 AND Order_Total < 74)
Which of the following is the number of orders that will be returned by the query?
If a query is made to the table with the following logic:
Order_Total > 132 OR (Order Total >= 25 AND Order_Total < 74)
Which of the following is the number of orders that will be returned by the query?
Correct Answer: A
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You are working with a professional statistician to perform an analysis and would like to use a statistics package.
Which one of the following would be the most appropriate?
Which one of the following would be the most appropriate?
Correct Answer: C
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