CompTIA DA0-001 Actual Free Exam Questions & Community Discussion
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: D
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Encryption is a mechanism for protecting data.
When should encryption be applied to data?
Choose the best answer.
When should encryption be applied to data?
Choose the best answer.
Correct Answer: D
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An analyst is creating a resource to improve users' experience when they select specific records based on particular dates. Which of the following should the analyst use to create a resource that best meets user needs?
Correct Answer: A
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Given the following tables:
Which of the following will be the dimensions from a FULL JOIN of the tables above?
Which of the following will be the dimensions from a FULL JOIN of the tables above?
Correct Answer: A
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Consider this dataset showing the retirement age of 11 people, in whole years:
54, 54, 54, 55, 56, 57, 57, 58, 58, 60, 60
This tables show a simple frequency distribution of the retirement age data.
54, 54, 54, 55, 56, 57, 57, 58, 58, 60, 60
This tables show a simple frequency distribution of the retirement age data.
Correct Answer: C
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What subset of Structured Query Language (SQL) is used to add, remove, modify, or retrieve the information stored within a relational database?
Correct Answer: A
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A database administrator is required to mask certain table columns containing PII in order to comply with the company privacy policy. Which of the following are the most likely types of information the administrator should mask? (Select two).
Correct Answer: A,D
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A sales director has requested a report for individual team members within the division be developed. The director would like the report to be shared with all team members, but individual team members should not be identifiable within the report Which of the following access requirements would support the director's needs?
Correct Answer: A
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