Online Access Free DA0-001 Practice Test

A data analyst is reviewing SQL code and sees a query that uses terms such as MIN, SUM, and COUNT.
Which of the following types of functions best describes these terms?

• A.Filtering
• B.Aggregate
• C.System
• D.Logical

Given the following report:

Which of the following components need to be added to ensure the report is point-in-time and static? (Choose two.)

• A.The date when the report was last accessed
• B.Filter buttons for the status
• C.The time period the report covers
• D.A summary of the KPIs
• E.A control group for the phrases
• F.The date on which the report was run

A gambler thinks that a coin is fair and is equally likely to turn up heads or tails when the coin is flipped.
Which of the following tests should the gambler use to fest this hypothesis?

• A.Chi-squared test
• B.Rank sum test
• C.Ratio test
• D.t-test

Given the following data:
CustomerID
ItemBought
Date
Tre_234
Sofa
2022-09-08
216_Tre
Shoes
08/02/2021
215/Tre
Blanket
2021/06/20
045/Tre
Mug
12-26-2021
Tre-345
Lamp
31/08/2022
TREJD19
Bucket
2022'08/01
Which of the following best describes the main issue in the data set?

• A.Redundant data
• B.Data mismatch
• C.Invalid data
• D.Inconsistent data

A data scientist wants to see which products make the most money and which products attract the most customer purchasing interest in their company.
Which of the following data manipulation techniques would he use to obtain this information?

• A.Data blending
• B.Data merge
• C.Data append
• D.Normalize data