WGU D467 - Exploring Data Exam
Questions Merged With Correct
Complete Solutions || Already Graded
A+ || 2026-2027 Latest Update!!!
A data analyst is performing analysis on data stored in a big data
platform with state-of-the-art analysis tools. Insufficient sample size is
rendering the current analysis ineffective. What is the primary
challenge of a larger sample size?
Collecting a larger sample size is more expensive.
Analyzing a larger sample size is complex.
Storing a larger sample size is difficult.
Cleansing a larger sample size is complicated. - ANSWER-Collecting a
larger sample size is more expensive.
A data analyst is reviewing a national database of real estate sales.
They are only interested in sales of condominiums. How can the
analyst narrow their scope?
,Sort by condominium sales
Filter out non-condominium sales
Filter out condominium sales
Sort by non-condominium sales - ANSWER-Filter out non-
condominium sales
A data analyst removes personally identifying information from a
dataset. What task are they performing?
Data anonymization
Data sorting
Data collection
Data visualization - ANSWER-Data anonymization
A data analyst runs the following query. What do they want to
retrieve from the database?
SELECT *
FROM Customer Orders
WHERE Country = 'Finland'
All fields of orders from customers outside of Finland
All fields of the customers who have placed an order
,All fields of the names of customers living in Finland
All fields of orders from customers in Finland - ANSWER-All fields of
orders from customers in Finland
A data analyst uses _____ to organize multiple files for a given project
so they can be found and accessed in an efficient manner.
data hygiene
foldering
version control
data grouping - ANSWER-foldering
A data analyst works for a rental car company. They have a
spreadsheet that lists car ID numbers and the dates cars were
returned. How should they sort the spreadsheet to find the most
recently returned cars?
By return date, in ascending order
By return date, in descending order
By car numerical ID, in ascending order
By car numerical ID, in descending order - ANSWER-By return date, in
descending order
A data analytics team uses data about data to indicate consistent
naming conventions for a project. What type of data is involved in this
scenario?
, Aggregated data
Metadata
Long data
Big data - ANSWER-Metadata
A data professional working on a project about commuters researches
the origin of a dataset to confirm it was created by a reputable source,
such as a government transportation agency. Which aspect of good
data are they prioritizing?
Original
Comprehensive
Cited
Reliable - ANSWER-Cited
A data scientist at a tech company records whether users have
accepted their company's terms of service or not. What data type is
being collected in this scenario?
Text
Boolean
String
Numerical - ANSWER-Boolean
Questions Merged With Correct
Complete Solutions || Already Graded
A+ || 2026-2027 Latest Update!!!
A data analyst is performing analysis on data stored in a big data
platform with state-of-the-art analysis tools. Insufficient sample size is
rendering the current analysis ineffective. What is the primary
challenge of a larger sample size?
Collecting a larger sample size is more expensive.
Analyzing a larger sample size is complex.
Storing a larger sample size is difficult.
Cleansing a larger sample size is complicated. - ANSWER-Collecting a
larger sample size is more expensive.
A data analyst is reviewing a national database of real estate sales.
They are only interested in sales of condominiums. How can the
analyst narrow their scope?
,Sort by condominium sales
Filter out non-condominium sales
Filter out condominium sales
Sort by non-condominium sales - ANSWER-Filter out non-
condominium sales
A data analyst removes personally identifying information from a
dataset. What task are they performing?
Data anonymization
Data sorting
Data collection
Data visualization - ANSWER-Data anonymization
A data analyst runs the following query. What do they want to
retrieve from the database?
SELECT *
FROM Customer Orders
WHERE Country = 'Finland'
All fields of orders from customers outside of Finland
All fields of the customers who have placed an order
,All fields of the names of customers living in Finland
All fields of orders from customers in Finland - ANSWER-All fields of
orders from customers in Finland
A data analyst uses _____ to organize multiple files for a given project
so they can be found and accessed in an efficient manner.
data hygiene
foldering
version control
data grouping - ANSWER-foldering
A data analyst works for a rental car company. They have a
spreadsheet that lists car ID numbers and the dates cars were
returned. How should they sort the spreadsheet to find the most
recently returned cars?
By return date, in ascending order
By return date, in descending order
By car numerical ID, in ascending order
By car numerical ID, in descending order - ANSWER-By return date, in
descending order
A data analytics team uses data about data to indicate consistent
naming conventions for a project. What type of data is involved in this
scenario?
, Aggregated data
Metadata
Long data
Big data - ANSWER-Metadata
A data professional working on a project about commuters researches
the origin of a dataset to confirm it was created by a reputable source,
such as a government transportation agency. Which aspect of good
data are they prioritizing?
Original
Comprehensive
Cited
Reliable - ANSWER-Cited
A data scientist at a tech company records whether users have
accepted their company's terms of service or not. What data type is
being collected in this scenario?
Text
Boolean
String
Numerical - ANSWER-Boolean
