Free CompTIA DA0-001 Practice Test & Real Exam Questions
Which of the following defines the policies and procedures for managing the master data?
Correct Answer: C
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A data analyst has a set with more than 40.000 rows in the sample schema below:
The analyst would like to create one column that contains the customers' birth dates. Which of the following data quality dimensions would BEST explain the reason for compilation?
The analyst would like to create one column that contains the customers' birth dates. Which of the following data quality dimensions would BEST explain the reason for compilation?
Correct Answer: D
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Which of the following is an object associated with a table that sorts and stores table row data in a key-value pair?
Correct Answer: A
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A recurring event is being stored in two databases that are housed in different geographical locations. A data analyst notices the event is being logged three hours earlier in one database than in the other database. Which of the following is the MOST likely cause of the issue?
Correct Answer: C
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An analyst has been tracking company intranet usage and has been asked to create a chat to show the most- used/most-clicked portions of a homepage that contains more than 30 links. Which of the following visualizations would BEST illustrate this information?
Correct Answer: D
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Which of the following types of dashboards should a business intelligence engineer develop in order to provide information about failed data pipelines?
Correct Answer: C
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Exhibit.
Which of the following logical statements results in Table B?
Which of the following logical statements results in Table B?
Correct Answer: C
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A data analyst was asked to create a chart that shows the relationship between study hours and exam scores for each student using the data sets in the table below:
Which of the following charts would BEST represent the relationship between the variables?
Which of the following charts would BEST represent the relationship between the variables?
Correct Answer: D
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The duration of a phone call in milliseconds is an example of:
Correct Answer: B
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A military commander would like to see the health scorecards of the troops daily and filter them based on gender and rank. Considering this data is PHI, which of the following would be the best way for the commander to view the information?
Correct Answer: B
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A data analyst was asked to create a visual representation of sales for the first quarter of 2020. Which of the following visualizations should be used when a time element is present?
Correct Answer: C
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An analyst is designing a dashboard that will provide a story of the sales and sales customer ratio. The following data is available:
Which of the following charts should the analyst consider including in the dashboard?
Which of the following charts should the analyst consider including in the dashboard?
Correct Answer: C
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Which of the following best describes how discrete data differs from continuous data?
Correct Answer: D
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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?
Correct Answer: D
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A web developer wants to ensure that malicious users can't type SQL statements when they asked for input, like their username/userid.
Which of the following query optimization techniques would effectively prevent SQL Injection attacks?
Which of the following query optimization techniques would effectively prevent SQL Injection attacks?
Correct Answer: D
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