WGU D491 for Post Assessment 204 Questions with
Verified Answers
Which job position is primarily responsible for designing and constructing data
pipelines within the field of data analytics? - CORRECT ANSWER Data engineer
Which role is responsible for project initiation and providing the requirements for
a project? - CORRECT ANSWER Project sponsor
Which role in a data analytics project helps data scientists shape data for analysis?
- CORRECT ANSWER Data engineer
Which role in a data analytics project provides expertise for analytical techniques?
- CORRECT ANSWER Data scientist
Which skills are required by data scientists for converting unstructured data to
structured data in data analytics projects? - CORRECT ANSWER Data wrangling
skills
Which skill must a business intelligence analyst possess to collect and organize
data? - CORRECT ANSWER Data preparation
Which project-related activity typically takes up the majority of a data analyst's
time? - CORRECT ANSWER Data preparation
,Which software do business intelligence analysts use to perform their
responsibilities? - CORRECT ANSWER Microsoft Excel
What is a skill required of a data engineer? - CORRECT ANSWER Maintaining
databases
Which group of stakeholders comprises the professionals, such as line managers?
- CORRECT ANSWER Business users
Which stakeholder is primarily responsible for ensuring the desired quality of the
project? - CORRECT ANSWER Project managers
Which stakeholder has access to essential tables or storage systems and
guarantees the highest levels of security in the data repository? - CORRECT
ANSWER Database administrator
Why is it significant to establish failure criteria for a data analytics project in the
discovery phase? - CORRECT ANSWER It helps the team determine when it is best
to accept the conclusions.
Which stakeholder extracts and transforms data during the discovery phase? -
CORRECT ANSWER Data engineer
A person has been assigned to manage a project to implement a company-wide
customer relationship management (CRM) system. The CRM system aims to
centralize customer details, automate sales processes, and improve customer
service. What skills are crucial for the project team members working on the CRM
,system implementation? - CORRECT ANSWER Data analysis, system integration,
and training
Why is formulating an initial hypothesis an integral part of the discovery phase of
the data analytics lifecycle? - CORRECT ANSWER It guides the subsequent
(following) data collection, processing, and analysis activities.
Who should be included as stakeholders in an analytics project? - CORRECT
ANSWER Anyone who will benefit from the project
Who offers suggestions on ideas to test as the team formulates hypotheses during
the discovery phase of a data analytics project? - CORRECT ANSWER Data
scientists
Which activity occurs during the data preparation phase of the data analytics
lifecycle? - CORRECT ANSWER Understanding of data
Which data visualization is most suitable for understanding the trend and
progression of a variable over time in the data preparation phase? - CORRECT
ANSWER Line charts
Which task is commonly performed to identify and address data quality issues
during the data preparation phase? - CORRECT ANSWER Conducting data profiling
Which common data cleaning task is used to address the missing data in a data
set? - CORRECT ANSWER Imputation
, Which task is typically performed to handle outliers during the data preparation
phase? - CORRECT ANSWER Truncating extreme values
A data analyst at a retail company is provided with a large dataset containing sales
transactions, customer information, and product details. The analyst is tasked
with preparing the data for analysis and modeling.
Which activity would the analyst perform during the data preparation phase? -
CORRECT ANSWER Exploring available data to understand its characteristics and
suitability
Which activity is performed during the model planning phase of a data analysis
project? - CORRECT ANSWER Selecting relevant features for modeling
Which is primarily used for statistical analysis and data manipulation in the model
planning phase? - CORRECT ANSWER R
Which classification model is based on the concept of probability and assigns class
labels to instances based on the possibility of belonging to a particular class? -
CORRECT ANSWER Naive Bayes
Which tool is used to connect users to relational databases and data warehouse
appliances in the model planning phase? - CORRECT ANSWER SAS/ACCESS
Which regression model is commonly used for predicting a continuous numerical
outcome based on a set of input features? - CORRECT ANSWER Linear regression
Verified Answers
Which job position is primarily responsible for designing and constructing data
pipelines within the field of data analytics? - CORRECT ANSWER Data engineer
Which role is responsible for project initiation and providing the requirements for
a project? - CORRECT ANSWER Project sponsor
Which role in a data analytics project helps data scientists shape data for analysis?
- CORRECT ANSWER Data engineer
Which role in a data analytics project provides expertise for analytical techniques?
- CORRECT ANSWER Data scientist
Which skills are required by data scientists for converting unstructured data to
structured data in data analytics projects? - CORRECT ANSWER Data wrangling
skills
Which skill must a business intelligence analyst possess to collect and organize
data? - CORRECT ANSWER Data preparation
Which project-related activity typically takes up the majority of a data analyst's
time? - CORRECT ANSWER Data preparation
,Which software do business intelligence analysts use to perform their
responsibilities? - CORRECT ANSWER Microsoft Excel
What is a skill required of a data engineer? - CORRECT ANSWER Maintaining
databases
Which group of stakeholders comprises the professionals, such as line managers?
- CORRECT ANSWER Business users
Which stakeholder is primarily responsible for ensuring the desired quality of the
project? - CORRECT ANSWER Project managers
Which stakeholder has access to essential tables or storage systems and
guarantees the highest levels of security in the data repository? - CORRECT
ANSWER Database administrator
Why is it significant to establish failure criteria for a data analytics project in the
discovery phase? - CORRECT ANSWER It helps the team determine when it is best
to accept the conclusions.
Which stakeholder extracts and transforms data during the discovery phase? -
CORRECT ANSWER Data engineer
A person has been assigned to manage a project to implement a company-wide
customer relationship management (CRM) system. The CRM system aims to
centralize customer details, automate sales processes, and improve customer
service. What skills are crucial for the project team members working on the CRM
,system implementation? - CORRECT ANSWER Data analysis, system integration,
and training
Why is formulating an initial hypothesis an integral part of the discovery phase of
the data analytics lifecycle? - CORRECT ANSWER It guides the subsequent
(following) data collection, processing, and analysis activities.
Who should be included as stakeholders in an analytics project? - CORRECT
ANSWER Anyone who will benefit from the project
Who offers suggestions on ideas to test as the team formulates hypotheses during
the discovery phase of a data analytics project? - CORRECT ANSWER Data
scientists
Which activity occurs during the data preparation phase of the data analytics
lifecycle? - CORRECT ANSWER Understanding of data
Which data visualization is most suitable for understanding the trend and
progression of a variable over time in the data preparation phase? - CORRECT
ANSWER Line charts
Which task is commonly performed to identify and address data quality issues
during the data preparation phase? - CORRECT ANSWER Conducting data profiling
Which common data cleaning task is used to address the missing data in a data
set? - CORRECT ANSWER Imputation
, Which task is typically performed to handle outliers during the data preparation
phase? - CORRECT ANSWER Truncating extreme values
A data analyst at a retail company is provided with a large dataset containing sales
transactions, customer information, and product details. The analyst is tasked
with preparing the data for analysis and modeling.
Which activity would the analyst perform during the data preparation phase? -
CORRECT ANSWER Exploring available data to understand its characteristics and
suitability
Which activity is performed during the model planning phase of a data analysis
project? - CORRECT ANSWER Selecting relevant features for modeling
Which is primarily used for statistical analysis and data manipulation in the model
planning phase? - CORRECT ANSWER R
Which classification model is based on the concept of probability and assigns class
labels to instances based on the possibility of belonging to a particular class? -
CORRECT ANSWER Naive Bayes
Which tool is used to connect users to relational databases and data warehouse
appliances in the model planning phase? - CORRECT ANSWER SAS/ACCESS
Which regression model is commonly used for predicting a continuous numerical
outcome based on a set of input features? - CORRECT ANSWER Linear regression
