DA0-001 practice questions 81–90

1. Question 81 · 365 in bank

   An analyst notices changes in sales ratios when analyzing a quarterly report. Which of the following is the analyst conducting?

   • AA gap analysis
   • BA link analysis
   • CA trend analysis
   • DA statistical analysis

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   Answer: C

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2. Question 82 · 365 in bank

   Which of the following is the BEST example of unstructured data?

   • AA JSON file
   • BA relational database
   • CA CSV file
   • DAn audio file

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   Answer: D

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3. Question 83 · 365 in bank

   A data analyst has received a data set that contains actual and projected sales for the fourth quarter of 2019. Which of the following statistical methods should the analyst use to find the measure of dispersion?

   • AMean
   • BVariance
   • CCorrelation
   • DConfidence interval

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   Answer: B

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4. Question 84 · 365 in bank

   A data analyst has been asked to find the mean, median, and mode of the distribution in the data shown below:

   

   Which of the following is the correct answer?

   • AMean: 5 - Median: 3 - Mode: 7 -
   • BMean: 5 - Median: 7 - Mode: 7 -
   • CMean: 6 - Median: 3 - Mode: 7 -
   • DMean: 6 - Median: 7 - Mode: 7

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   Answer: D

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5. Question 85 · 365 in bank

   Which of the following is the correct extension for a tab-delimited spreadsheet file?

   • A.tap
   • B.tar
   • C.tsv
   • D.taz

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   Answer: C

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6. Question 86 · 365 in bank

   Which of the following concepts should be applied if a data set with 40 fields needs to be pared down to 20 fields and contains similar data across multiple fields?

   • ADuplication
   • BConsolidation
   • CCompliance
   • DStandardization

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   Answer: B

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7. Question 87 · 365 in bank

   Which of the following is a common data analytics tool that is also used as an interpreted, high-level, general-purpose programming language?

   • ASAS
   • BMicrosoft Power BI
   • CIBM SPSS
   • DPython

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   Answer: D

   Explanation

   D. Python is a common data analytics tool that is also used as an interpreted, high-level, general-purpose programming language. Python is popular among data analysts and data scientists because of its simplicity, flexibility, and powerful data processing and visualization libraries. Python is often used to perform data manipulation, exploration, and analysis tasks, and can be used to build machine learning models, data pipelines, and data visualizations. The other options (SAS, Microsoft Power BI, and IBM SPSS) are also data analytics tools, but they are not programming languages.

   Source: Adapted from community discussion — CineFeX

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8. Question 88 · 365 in bank

   Which of the following is the BEST description of the term “data governance”?

   • AData governance governs the development of a data visualization dashboard in an organization.
   • BData governance is the policy that protects against data breaches by cybercriminals.
   • CData governance is the process of analyzing, manipulating, and reporting data in an organization.
   • DData governance is the availability, usability, integrity and security of data in an enterprise.

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   Answer: D

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9. Question 89 · 365 in bank

   In comparison to other data types, which of the following can hold a mix of numbers and letters?

   • ACharacter
   • BFloat
   • CInteger
   • DAlphanumeric

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   Answer: D

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10. Question 90 · 365 in bank

    Company A recently merged with Company B and will be reporting first quarter numbers soon. Prior to the release, an analyst wants to ensure the data was accurately blended together. Which of the following is the MOST efficient way to ensure the data is reported correctly?

    • AAssume the data was blended together and wait for feedback.
    • BFilter on every column to look for inconsistencies in the data.
    • CSpot check a few numbers to look for inconsistencies.
    • DReview the files separately and ensure the blended totals match.

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    Answer: D

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DA0-001 practice, question 81. 365 questions available.