D204 PRACTICE EXAM QUESTIONS WITH
CORRECT ANSWERS 2026/2027 LATEST
UPDATE
What will be a consequence of poor attention to detail during
the data exploration phase?
A. Not enough variables will be considered in the analysis
B. The outcome of the analysis will be misaligned to business
needs
C. The analyst will lack insight into the structure of the data
set
D. The model will be built using the wrong data set - answer-
C
Which aspect of data exploration occurs when an analyst
writes code to compile a bar graph of dog food sales per
month?
1
,A. Performance of a correlation analysis
B. Analysis of data anomalies
C. Verification through visualization
D. Determination of variabilities - answer-C
An oil company uses robots and sensors to detect how
pipeline corrosion changes over time. The collected data
is then used in a predictive model that estimates when a
pipe should be replaced.
How does the predictive model serve this oil company?
A. To minimize interruptions from maintenance shutdowns
B. To minimize the need for workforce safety training
C. To improve compliance with pipeline construction
standards
D. To improve compliance with pipeline disposal standards -
answer- A
During which phase in the data analytics life cycle would a
churn analysis be performed?
2
,A. Data cleaning
B. Data acquisition
C. Predictive analysis
D. Representation and reporting - answer-C
Which mistake is commonly made during the predictive
analytics phase?
A. The data are separated into different sets.T
B. he variables are separated into response and independent
variables.
C. The data are prepared before the model is developed.
D. The model is developed before the research question is
known. - answer-D
Which activity does an analyst perform in the discovery phase
of the data analytics life cycle?
A. Collecting Data
B. Cleaning Data
3
, C. Identifying Outliers
D. Identifying Business Needs - answer-D
In which phase of the data analytics life cycle does an analyst
build a histogram?
A. Data Acquisition
B. Data Exploration
C. Discovery
D. Predictive Modeling - answer-B
An analyst applies a statistical formula to obtain the average
temperature for a city over the last 50 years.
Which phase of the data analytics life cycle is represented by
this activity?
A. Data Acquisition
B. Exploratory Data Analysis
C. Predictive Modeling
4
CORRECT ANSWERS 2026/2027 LATEST
UPDATE
What will be a consequence of poor attention to detail during
the data exploration phase?
A. Not enough variables will be considered in the analysis
B. The outcome of the analysis will be misaligned to business
needs
C. The analyst will lack insight into the structure of the data
set
D. The model will be built using the wrong data set - answer-
C
Which aspect of data exploration occurs when an analyst
writes code to compile a bar graph of dog food sales per
month?
1
,A. Performance of a correlation analysis
B. Analysis of data anomalies
C. Verification through visualization
D. Determination of variabilities - answer-C
An oil company uses robots and sensors to detect how
pipeline corrosion changes over time. The collected data
is then used in a predictive model that estimates when a
pipe should be replaced.
How does the predictive model serve this oil company?
A. To minimize interruptions from maintenance shutdowns
B. To minimize the need for workforce safety training
C. To improve compliance with pipeline construction
standards
D. To improve compliance with pipeline disposal standards -
answer- A
During which phase in the data analytics life cycle would a
churn analysis be performed?
2
,A. Data cleaning
B. Data acquisition
C. Predictive analysis
D. Representation and reporting - answer-C
Which mistake is commonly made during the predictive
analytics phase?
A. The data are separated into different sets.T
B. he variables are separated into response and independent
variables.
C. The data are prepared before the model is developed.
D. The model is developed before the research question is
known. - answer-D
Which activity does an analyst perform in the discovery phase
of the data analytics life cycle?
A. Collecting Data
B. Cleaning Data
3
, C. Identifying Outliers
D. Identifying Business Needs - answer-D
In which phase of the data analytics life cycle does an analyst
build a histogram?
A. Data Acquisition
B. Data Exploration
C. Discovery
D. Predictive Modeling - answer-B
An analyst applies a statistical formula to obtain the average
temperature for a city over the last 50 years.
Which phase of the data analytics life cycle is represented by
this activity?
A. Data Acquisition
B. Exploratory Data Analysis
C. Predictive Modeling
4
