IT Exam Items Repository

What is used to show how the tables in a database are related to one another?
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Which SQL statement is used to filter data in a database?
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Which commonly used SQL statement is necessary to retrieve data from one or more tables in a database?
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What is a flat file database?
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A data analyst wants to display outliers in the data set. Which type of visual representation would best suit this task?
ITExamAnswers Editorial Team asked 1 year ago • 
A data analyst wants to display the various segments of a country’s energy sources (e.g., oil, coal, gas, solar, wind) contributing to 100% of its energy sources in a visual format. What type of chart would be best used to accomplish this?
ITExamAnswers Editorial Team asked 1 year ago • 
Why is regression analytics used in the inferential and machine learning analyses of big data?
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Which type of inferential and machine learning analysis is used to find groups of observations that are similar to each other?
ITExamAnswers Editorial Team asked 1 year ago • 
Why are different sampling techniques used to gather inferential statistical data?
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A data analyst wants to find data point values that are significantly different from others in a data set. What are these values called?
ITExamAnswers Editorial Team asked 1 year ago • 
Which three key pieces of information are required to perform a VLOOKUP function in Microsoft Excel? (Choose three.)
ITExamAnswers Editorial Team asked 1 year ago • 
What can a data analyst do if they wanted to remove duplicate values in a Microsoft Excel spreadsheet?
ITExamAnswers Editorial Team asked 1 year ago • 
How is the Microsoft Excel VLOOKUP tool used in data analysis?
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What are inferential data sets?
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In Microsoft Excel, what is a characteristic of an "absolute reference"?
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