WGU D431 OA COMPUTER FORENSICS EXAM
4 2026 QUESTION BANK MALWARE AND DATA
RECOVERY MODULE SOLVED ITEMS AND
RESPONSE KEY
◉ Relatively lower cost of computer storage
Higher computer processing power. Answer: What are two reasons
for the increasing use of analytics in organizational decision making?
Choose 2 answers
◉ By quantifying risk. Answer: In what way does probability theory
inform decision-making for managers?
◉ Ordinal data. Answer: Which type of data are the Olympic medals
of gold, silver, and bronze examples of?
◉ It reduces the amount of incomplete data.
It cleans data.. Answer: What are some of the aspects of data quality
management?
Choose 2 answers
,◉ Missing data
Misspelled data. Answer: Which two attributes indicate potential
data quality issues when evaluating a set of nominal data?
Choose 2 answers
◉ Systematic error. Answer: When conducting a study that measures
an individual's weight, all scales are calibrated prior to use in
measurement.
Which type of error should this procedure significantly reduce?
◉ The response variable. Answer: An advertising manager creates a
research study by presenting low, medium, or high frequency of the
same ad in matched markets. The manager then reports on sales in
each market location.
What is the term for the different sales in this study?
◉ Cohort study. Answer: A healthcare study follows a particular
sample over time to identify how the health habits of teenagers
impact their likelihood of acquiring various diseases later in their
, life in the hope that the healthcare organization will be able to create
early prevention programs.
Which type of research design does this study describe?
◉ Systematic error
Omission error. Answer: Several missing values in a particular field
in a dataset were observed. The likelihood of a record having a
missing value is correlated to another variable in the dataset.
Which two types of error might be introduced into the dataset if the
removed record included missing values?
Choose 2 answers
◉ Number of purchases per e-mail
Cost per e-mail. Answer: A company is trying to increase its online
sales revenue by improving its e-mail advertising campaign for
repeat customers as well as new customers.
Which two variables would be used in determining a campaign to
maximize revenue gain?
Choose 2 answers
4 2026 QUESTION BANK MALWARE AND DATA
RECOVERY MODULE SOLVED ITEMS AND
RESPONSE KEY
◉ Relatively lower cost of computer storage
Higher computer processing power. Answer: What are two reasons
for the increasing use of analytics in organizational decision making?
Choose 2 answers
◉ By quantifying risk. Answer: In what way does probability theory
inform decision-making for managers?
◉ Ordinal data. Answer: Which type of data are the Olympic medals
of gold, silver, and bronze examples of?
◉ It reduces the amount of incomplete data.
It cleans data.. Answer: What are some of the aspects of data quality
management?
Choose 2 answers
,◉ Missing data
Misspelled data. Answer: Which two attributes indicate potential
data quality issues when evaluating a set of nominal data?
Choose 2 answers
◉ Systematic error. Answer: When conducting a study that measures
an individual's weight, all scales are calibrated prior to use in
measurement.
Which type of error should this procedure significantly reduce?
◉ The response variable. Answer: An advertising manager creates a
research study by presenting low, medium, or high frequency of the
same ad in matched markets. The manager then reports on sales in
each market location.
What is the term for the different sales in this study?
◉ Cohort study. Answer: A healthcare study follows a particular
sample over time to identify how the health habits of teenagers
impact their likelihood of acquiring various diseases later in their
, life in the hope that the healthcare organization will be able to create
early prevention programs.
Which type of research design does this study describe?
◉ Systematic error
Omission error. Answer: Several missing values in a particular field
in a dataset were observed. The likelihood of a record having a
missing value is correlated to another variable in the dataset.
Which two types of error might be introduced into the dataset if the
removed record included missing values?
Choose 2 answers
◉ Number of purchases per e-mail
Cost per e-mail. Answer: A company is trying to increase its online
sales revenue by improving its e-mail advertising campaign for
repeat customers as well as new customers.
Which two variables would be used in determining a campaign to
maximize revenue gain?
Choose 2 answers
