Data mining Comprehensive Resource To Help You Ace 2026-2027 Exams Includes Frequently Tested
Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Which statement about business intelligence workflow is
CORRECT?
a. Data in the operational database is transformed to
analytical data in the data warehouse
a. Data in the operational database is transformed to an-
b. External data sources are never used in the BI analytics
alytical data in the data warehouse
c. Transactional data software is directly connected to data
warehouse
d. Business users and BI analysts are usually the same
group of people
According to the data-driven decision-making technology
pyramid shown in the following figure, which statement is
FALSE?
a. At the bottom of the pyramid are transactional data
management systems moderated and operated by data-
base analyst and admins (DBA).
c. The process only moves in one direction (upward) and
b. As data moves from the bottom of the pyramid to the top
higher layers never give feedback to the lower layers.
it transforms into information, knowledge, and actionable
insights..
c. The process only moves in one direction (upward) and
higher layers never give feedback to the lower layers.
d. Raw operational data in OLTP systems are transformed
to OLAP in data warehouse systems.
Which statement about the data mining process is INCOR-
RECT?
a. No value presents in raw, unprocessed, and unaction-
able data c. Data cleaning and pre-processing is usually a trivial step
b. The overall objective of any data mining process is to in the process
improve the business
c. Data cleaning and pre-processing is usually a trivial step
in the process
,Data mining Comprehensive Resource To Help You Ace 2026-2027 Exams Includes Frequently Tested
Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
d. Data mining is a multidisciplinary field that makes a
significant use of statistics
Which statement is FALSE about the data-driven deci-
sion-making approach?
a. It requires computational work
d. It is loaded with assumptions and theories
b. It is an iterative and algorithmic process
c. It is based on the collected facts
d. It is loaded with assumptions and theories
Which source is considered as a data source in the "big
data" ecosystem?
a. Social media
d. All of the others
b. Business transactions
c. Internal business emails
d. All of the others
"Learn from the observed records to predict numerical
values of unseen records."
In data mining, this is called ...
a. Regression a. Regression
b. Segmentation
c. Classification
d. Clustering
Which of the followings is a core idea/task in data min-
ing?
a. Data cleaning and pre processing
b. All of the others
b. All of the others
c. Regression modeling
d. Data visualization
ANOVA is an analysis under which of the following data
mining task categories?
a. Visualization
, Data mining Comprehensive Resource To Help You Ace 2026-2027 Exams Includes Frequently Tested
Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
b. Data exploration
c. Dimension reduction b. Data exploration
d. Data cleaning
"Predicting whether a company will go bankrupt based on
comparing its financial data to those of similar bankrupt
and nonbankrupt firms."
False
Performing this task in data mining requires an unsuper-
vised learning approach.
T/F
"Learn from the observed records to predict the class
value of unseen records."
In data mining, this is called ....
a. Clustering c. Classification
b. Segmentation
c. Classification
d. Regression
"Automated sorting of mail by zip code scanning."
Performing this task in data mining requires an unsuper-
True
vised learning approach
T/F
The "learning" part of machine learning refers to the fact
that the computer system improves its performance by
discerning patterns from data and adjusting its internal
parameters, without the need for explicit programming of True
rules case-by-case.
T/F
Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Which statement about business intelligence workflow is
CORRECT?
a. Data in the operational database is transformed to
analytical data in the data warehouse
a. Data in the operational database is transformed to an-
b. External data sources are never used in the BI analytics
alytical data in the data warehouse
c. Transactional data software is directly connected to data
warehouse
d. Business users and BI analysts are usually the same
group of people
According to the data-driven decision-making technology
pyramid shown in the following figure, which statement is
FALSE?
a. At the bottom of the pyramid are transactional data
management systems moderated and operated by data-
base analyst and admins (DBA).
c. The process only moves in one direction (upward) and
b. As data moves from the bottom of the pyramid to the top
higher layers never give feedback to the lower layers.
it transforms into information, knowledge, and actionable
insights..
c. The process only moves in one direction (upward) and
higher layers never give feedback to the lower layers.
d. Raw operational data in OLTP systems are transformed
to OLAP in data warehouse systems.
Which statement about the data mining process is INCOR-
RECT?
a. No value presents in raw, unprocessed, and unaction-
able data c. Data cleaning and pre-processing is usually a trivial step
b. The overall objective of any data mining process is to in the process
improve the business
c. Data cleaning and pre-processing is usually a trivial step
in the process
,Data mining Comprehensive Resource To Help You Ace 2026-2027 Exams Includes Frequently Tested
Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
d. Data mining is a multidisciplinary field that makes a
significant use of statistics
Which statement is FALSE about the data-driven deci-
sion-making approach?
a. It requires computational work
d. It is loaded with assumptions and theories
b. It is an iterative and algorithmic process
c. It is based on the collected facts
d. It is loaded with assumptions and theories
Which source is considered as a data source in the "big
data" ecosystem?
a. Social media
d. All of the others
b. Business transactions
c. Internal business emails
d. All of the others
"Learn from the observed records to predict numerical
values of unseen records."
In data mining, this is called ...
a. Regression a. Regression
b. Segmentation
c. Classification
d. Clustering
Which of the followings is a core idea/task in data min-
ing?
a. Data cleaning and pre processing
b. All of the others
b. All of the others
c. Regression modeling
d. Data visualization
ANOVA is an analysis under which of the following data
mining task categories?
a. Visualization
, Data mining Comprehensive Resource To Help You Ace 2026-2027 Exams Includes Frequently Tested
Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
b. Data exploration
c. Dimension reduction b. Data exploration
d. Data cleaning
"Predicting whether a company will go bankrupt based on
comparing its financial data to those of similar bankrupt
and nonbankrupt firms."
False
Performing this task in data mining requires an unsuper-
vised learning approach.
T/F
"Learn from the observed records to predict the class
value of unseen records."
In data mining, this is called ....
a. Clustering c. Classification
b. Segmentation
c. Classification
d. Regression
"Automated sorting of mail by zip code scanning."
Performing this task in data mining requires an unsuper-
True
vised learning approach
T/F
The "learning" part of machine learning refers to the fact
that the computer system improves its performance by
discerning patterns from data and adjusting its internal
parameters, without the need for explicit programming of True
rules case-by-case.
T/F
