Free CompTIA DA0-001 Practice Test & Real Exam Questions
A cereal manufacturer wants to determine whether the sugar content of its cereal has increased over the years.
Which of the following is the appropriate descriptive statistic to use?
Which of the following is the appropriate descriptive statistic to use?
Correct Answer: B
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An analyst is working with a data set that lists individuals' first and last names in separate columns. Which of the following processes should the analyst use to combine the first and last names into a single spreadsheet cell?
Correct Answer: B
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Which of the following descriptive statistical methods are measures of central tendency? (Choose two.)
Correct Answer: C,E
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Which of the following would be used to store unstructured data from different sources?
Correct Answer: C
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Which of the following variable name formats would be problematic if used in the majority of data software programs?
Correct Answer: A
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A data analyst needs to create a master file that includes customer information from the tables below:
Given the three tables above, the analyst wants to filter down the information prior to joining it together. In which of the following orders should this data manipulation bo approached for the most efficient result?
Given the three tables above, the analyst wants to filter down the information prior to joining it together. In which of the following orders should this data manipulation bo approached for the most efficient result?
Correct Answer: C
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Which of the following is an example of a discrete data type?
Correct Answer: B
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A data analyst who works for a government agency is required to obtain the average income of citizens. The list of citizens is given in the following table:
A value for one citizen's income is missing. Which of the following approaches should the data analyst take to solve this issue?
A value for one citizen's income is missing. Which of the following approaches should the data analyst take to solve this issue?
Correct Answer: B
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An analyst is designing a dashboard to determine which site has the highest percentage of new customers. 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 to best display the data?
Which of the following types of charts should be considered to best display the data?
Correct Answer: B
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Which of the following data protection methods provides confidentiality for data in transit?
Correct Answer: B
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Given the following data:
Which of the following BEST describes the data set?
Which of the following BEST describes the data set?
Correct Answer: C
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A salesperson who is prospecting potential clients collected the following data:
Which of the following is an issue with this data?
Which of the following is an issue with this data?
Correct Answer: D
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A data set was recorded using multimedia technology. Which of the following is a necessary step on the way to interpretation?
Correct Answer: D
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An analyst has conducted a review of business questions. Which of the following should the analyst do next to conduct an analysis?
Correct Answer: B
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A data analyst needs to present the results of an online marketing campaign to the marketing manager. The manager wants to see the most important KPIs and measure the return on marketing investment. Which of the following should the data analyst use to BEST communicate this information to the manager?
Correct Answer: D
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