DA0-001 by CompTIA Valid Free Exam Practice Test

Question 1

A company notifies its employees that emails will be automatically moved to a cloud-based server in 180 days. Which of the following describes this concept?

A. Data retention B. Data processing C. Data constraints D. Data deletion

Correct Answer: A

Question 2

An analyst needs to provide a chart to identify the composition between the categories of the survey response data set:

Which of the following charts would be BEST to use?

A. Line B. Scatter pot C. Histogram D. Pie E. Waterfall

Correct Answer: D

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Question 3

An analyst is building a new dashboard for a user. After an initial conversation with the user. the analyst created a mock-up of the dashboard. Which of the following best explains why the analyst created the mock- up?

A. To confirm important details before dashboard development begins B. To send to the client after deploying the dashboard to production C. To identify the dimensions and measures D. To receive client approval for the final dashboard design

Correct Answer: A

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Question 4

A data profiling rule checks the quality of all email addresses in a database. The rule returns a value with the number of email addresses that conformed to the rule. Which of the following options describes this value?

A. Rows passed B. Columns passed C. Rows failed D. Columns failed

Correct Answer: A

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Question 5

Which of the following is the correct data type for text?

A. String B. Integer C. Boolean D. Float

Correct Answer: A

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Question 6

Which of the following summary statements upholds integrity in data reporting?

A. Product D should be promoted more than the other products in all strategies. B. While Strategy 2 does not result in the highest sales of Product D. over all products it appears to be the most effective. C. Strategy 4 provides the best sales in comparison to other strategies. D. Sales are approximately equal for Product A and Product B across all strategies.

Correct Answer: B

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Question 7

Given the table below:

Which of the following variable types BEST describes the "Year" column?

A. Text B. Date C. Numeric D. Alphanumeric

Correct Answer: B

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Question 8

Given the following graph:

Which of the following summary statements upholds integrity in data reporting?

A. While Strategy 2 does not result in the highest sales of Product D, over all products it appears to be the most effective. B. Product D should be promoted more than the other products in all strategies. C. Strategy 4 provides the best sales in comparison to other strategies. D. Sales are approximately equal for Product A and Product B across all strategies.

Correct Answer: C

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Question 9

An analyst is working for an organization that has a vast amount of data stored across various systems and databases. Employees have difficulty locating and understanding the currently available data assets. Which of the following tools should the analyst implement to best solve this issue?

A. Data lake B. Business glossary C. Data catalog D. Operational data store

Correct Answer: C

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Question 10

A research analyst collects ten data points from 1.000 specimens. The analyst will not need any additional data to complete the analysis and will not need to retrieve information by specifier. Which of the following is the best data structure for the analyst to use?

A. JSON B. Relational database C. NoSQL D. Flat file

Correct Answer: D

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Question 11

Given the following table of student scores (with some values that violate the allowed scoring rules), which of the following is the best reason for cleansing the data?

A. Redundant data B. Invalid data C. Data outliers D. Missing data

Correct Answer: B

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Question 12

A user receives a large custom report to track company sales across various date ranges. The user then completes a series of manual calculations for each date range. Which of the following should an analyst suggest so the user has a dynamic, seamless experience?

A. Create multiple reports, one for each needed date range. B. Add macros to the report to speed up the filtering and calculations process. C. Create a dashboard with a date range picker and calculations built in. D. Build calculations into the report so they are done automatically.

Correct Answer: C

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Question 13

Which of the following data types is best for representing count data?

A. Sequential B. Referential C. Discrete D. Continuous

Correct Answer: C

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CompTIA Data+ Certification - DA0-001 Exam Practice Test