data science exam ACTUAL QUESTIONS
AND CORRECT ANSWERS
Data is the contextualization of information, that is, information set in context. (T/F) - Correct
answers✔✔True
Data is the main ingredient for any BI, data science, and business analytics initiative. (T/F) -
Correct answers✔✔True
Predictive algorithms generally require a flat file with a target variable, so making data analytics
ready for prediction means that data sets must be transformed into a flat-file format and made
ready for ingestion into those predictive algorithms.(T/F) - Correct answers✔✔True
The data storage component of a business reporting system builds the various reports and hosts
them for, or disseminates them to users. It also provides notification, annotation, collaboration,
and other services.(T/F) - Correct answers✔✔False
There are basic chart types and specialized chart types. A Gantt chart is a specialized chart type.
(T/F) - Correct answers✔✔True
Visualization differs from traditional charts and graphs in complexity of data sets and use of
multiple dimensions and measures. (T/F) - Correct answers✔✔True
When telling a story during a presentation, it is best to avoid describing hurdles that your
character must overcome, to avoid souring the mood. (T/F) - Correct answers✔✔False
Visual analytics is aimed at answering, "What is it happening?" and is usually associated with
business analytics. (T/F) - Correct answers✔✔False
, Dashboards provide visual displays of important information that is consolidated and arranged
across several screens to maintain data order. (T/F) - Correct answers✔✔False
In the Dallas Cowboys case study, the focus was on using data analytics to decide which players
would play every week. (T/F) - Correct answers✔✔False
Data source reliability means that data are correct and are a good match for the analytics
problem. (T/F) - Correct answers✔✔False
Data accessibility means that the data are easily and readily obtainable. (T/F) - Correct
answers✔✔True
Structured data is what data mining algorithms use and can be classified as categorical or
numeric. (T/F) - Correct answers✔✔True
Interval data are variables that can be measured on interval scales. (T/F) - Correct
answers✔✔True
Nominal data represent the labels of multiple classes used to divide a variable into specific
groups. (T/F) - Correct answers✔✔False
Descriptive statistics is all about describing the sample data on hand. (T/F) - Correct
answers✔✔True
Which characteristic of data means that all the required data elements are included in the data
set?
AND CORRECT ANSWERS
Data is the contextualization of information, that is, information set in context. (T/F) - Correct
answers✔✔True
Data is the main ingredient for any BI, data science, and business analytics initiative. (T/F) -
Correct answers✔✔True
Predictive algorithms generally require a flat file with a target variable, so making data analytics
ready for prediction means that data sets must be transformed into a flat-file format and made
ready for ingestion into those predictive algorithms.(T/F) - Correct answers✔✔True
The data storage component of a business reporting system builds the various reports and hosts
them for, or disseminates them to users. It also provides notification, annotation, collaboration,
and other services.(T/F) - Correct answers✔✔False
There are basic chart types and specialized chart types. A Gantt chart is a specialized chart type.
(T/F) - Correct answers✔✔True
Visualization differs from traditional charts and graphs in complexity of data sets and use of
multiple dimensions and measures. (T/F) - Correct answers✔✔True
When telling a story during a presentation, it is best to avoid describing hurdles that your
character must overcome, to avoid souring the mood. (T/F) - Correct answers✔✔False
Visual analytics is aimed at answering, "What is it happening?" and is usually associated with
business analytics. (T/F) - Correct answers✔✔False
, Dashboards provide visual displays of important information that is consolidated and arranged
across several screens to maintain data order. (T/F) - Correct answers✔✔False
In the Dallas Cowboys case study, the focus was on using data analytics to decide which players
would play every week. (T/F) - Correct answers✔✔False
Data source reliability means that data are correct and are a good match for the analytics
problem. (T/F) - Correct answers✔✔False
Data accessibility means that the data are easily and readily obtainable. (T/F) - Correct
answers✔✔True
Structured data is what data mining algorithms use and can be classified as categorical or
numeric. (T/F) - Correct answers✔✔True
Interval data are variables that can be measured on interval scales. (T/F) - Correct
answers✔✔True
Nominal data represent the labels of multiple classes used to divide a variable into specific
groups. (T/F) - Correct answers✔✔False
Descriptive statistics is all about describing the sample data on hand. (T/F) - Correct
answers✔✔True
Which characteristic of data means that all the required data elements are included in the data
set?
