DSCI 4330 Exam 1 Complete Questions And Correct Detailed Answers.
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Course
DSCI
Institution
DSCI
BI represents a bold new paradigm in which the company's business strategy must be aligned to its business intelligence analysis initiatives. T/F - correct answer FALSE
The very design that makes an OLTP system efficient for transaction processing makes it in...
BI represents a bold new paradigm in which the company's business strategy must be aligned to its
business intelligence analysis initiatives. T/F - correct answer FALSE
The very design that makes an OLTP system efficient for transaction processing makes it inefficient for -
correct answer end-user ad hoc reports, queries, and analysis.
In the Opening Vignette on Sports Analytics, what type of modeling was used to predict offensive
tactics? - correct answer heat maps
Online transaction processing (OLTP) systems handle a company's routine ongoing business. In contrast,
a data warehouse is typically - correct answer a distinct system that provides
storage for data that will be made use of in analysis.
Due to industry consolidation, the analytics ecosystem consists of only a handful of players across
several functional areas. T/F - correct answer FALSE
The need for more versatile reporting than what was available in 1980s era ERP systems led to the
development of what type of system? - correct answer executive information
systems
Relational databases began to be used in the - correct answer 1980s
The use of dashboards and data visualizations is seldom effective in identifying issues in organizations,
as demonstrated by the Silvaris Corporation Case Study. T/F - correct answer FALSE
Traditional BI systems use a large volume of static data that has been extracted, cleansed, and loaded
into a data warehouse to produce reports and analyses. T/F - correct answer TRUE
, Which of the following is NOT an example of transaction processing? - correct answer
sales report
This plot is a graphical illustration of several descriptive statistics about a given data set. - correct answer
box-and-whiskers plot
Contextual metadata for a dashboard includes all the following EXCEPT - correct answer
which operating system is running the dashboard server software.
This measure of dispersion is calculated by simply taking the square root of the variations. - correct
answer standard deviation
Visualization differs from traditional charts and graphs in complexity of data sets and use of multiple
dimensions and measures. T/F - correct answer TRUE
Descriptive statistics is all about describing the sample data on hand. - correct answer
TRUE
Data accessibility means that the data are easily and readily obtainable. T/F - correct answer
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 answer FALSE
Which kind of chart is described as an enhanced version of a scatter plot? - correct answer
bubble chart
This measure of central tendency is the sum of all the values/observations divided by the number of
observations in the data set. - correct answer arithmetic mean
ey performance indicators (KPIs) are metrics typically used to measure - correct answer
internal results
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