1|Page
WGU D465 OBJECTIVE ASSESSMENT AND PRE -
ASSESSMENT NEWEST 2026 TEST BANK| D465 DATA
APPLICATIONS OA & PA EXAM WITH COMPLETE 450
REAL EXAM QUESTIONS AND CORRECT VERIFIED
ANSWERS/ ALREADY GRADED A+ (MOST RECENT!!)
Which programming language can handle trillions of rows of data and is
now a standard language for working with database programs? –
ANSWER - Structured Query Language (SQL)
An analyst is working on a project with a lot of milestones to track and
wants to create a spreadsheet that everyone can use to track their
individual progress. How could the analyst sort and filter progress
milestones? – ANSWER - Create a data validation menu in cells with
predetermined options
An analyst working with data in two different Google Sheets needs
information from both spreadsheets to connect together in a matching
column on a single sheet. Which function should the analyst use? –
ANSWER - VLOOKUP
An analyst working to aggregate data in databases uses a Structured
Query Language (SQL) command that returns all matching records in
two tables and the key values in each. Which command has the analyst
used? – ANSWER - INNER JOIN
pg. 1
,2|Page
An analyst working to aggregate data in databases wants to create a
temporary name for a table with a complex name to make Structured
Query Language (SQL) queries simpler. Which command should the
analyst use? – ANSWER - AS
An analyst working to aggregate data in databases uses a Structured
Query Language (SQL) command to create a temporary name for a table
and receives an ERROR message when the command is used. Which
command does the analyst use to create a temporary name for a table? –
ANSWER - FROM
An analyst working in a spreadsheet needs to determine the total
quantity of numerical values within a specific range that are unique.
Which function should the analyst use? – ANSWER - COUNT
DISTINCT
An analyst is working in a database and needs to use a function that will
return all the records from one table and only the matching records from
a second table. How does the analyst determine the order of the tables
using a JOIN function? – ANSWER - The table mentioned first is on the
left.
An analyst working in Google Sheets wants to find the lowest possible
average of monthly sales in a range of values. Which function should the
analyst use? – ANSWER - MIN
pg. 2
,3|Page
An analyst working in Google Sheets wants to calculate the total
revenue of each transaction recorded. Each transaction can have exactly
one item type and the data is organized by a category other than quantity.
Which function should the analyst use? – ANSWER - SUMIF
An analyst working in BigQuery applies a clause to a query creating a
specific set of rows and columns that executes the same process as a
temporary table. Which clause does the analyst apply to the query? –
ANSWER - WITH
An analyst working in Google Sheets wants to multiply individual
revenue amounts by profit margin percentages and then calculate overall
profit margins for a given range. Which function should the analyst use
to save time while performing the calculation? – ANSWER -
SUMPRODUCT
An analyst working with data in Google Sheets wants to calculate the
total sales for each department, the number of products each department
sold, and the department that generated the most revenue, but the data in
the original spreadsheet must be maintained. Which approach should the
analyst take? – ANSWER - Use a pivot table to make calculations
Which best practice helps to ensure the integrity of data before
beginning to work on a data set? – ANSWER - Data validation
pg. 3
, 4|Page
An analyst is comparing the common features of R and Python
programming languages. Which feature do both programming languages
share? – ANSWER - They both offer communities for code development
and support.
What does an analyst use to identify how words and symbols should be
used in R programming language? – ANSWER - Syntax
What is a unique challenge an analyst faces when using R programming
language as opposed to Python? – ANSWER - Users may have difficulty
using R programming language naming conventions.
An analyst wants to record the steps of analysis so they can double-
check their work and solve problems. How do general-purpose
programming languages such as R support this? – ANSWER - By
automatically storing code to reproduce and share work at any time
A web designer is responsible for the layout and styling of web pages
that feature text, graphics, and video. The web designer needs to use a
programming language that provides structure for web pages and is used
to connect to hosting platforms. Which programming language does the
web designer use? – ANSWER - Hypertext Markup Language v5
A web-application developer designs network applications used all
across the web. They need to use a programming language to create
enterprise web applications that can run on multiple clients. Which
pg. 4
WGU D465 OBJECTIVE ASSESSMENT AND PRE -
ASSESSMENT NEWEST 2026 TEST BANK| D465 DATA
APPLICATIONS OA & PA EXAM WITH COMPLETE 450
REAL EXAM QUESTIONS AND CORRECT VERIFIED
ANSWERS/ ALREADY GRADED A+ (MOST RECENT!!)
Which programming language can handle trillions of rows of data and is
now a standard language for working with database programs? –
ANSWER - Structured Query Language (SQL)
An analyst is working on a project with a lot of milestones to track and
wants to create a spreadsheet that everyone can use to track their
individual progress. How could the analyst sort and filter progress
milestones? – ANSWER - Create a data validation menu in cells with
predetermined options
An analyst working with data in two different Google Sheets needs
information from both spreadsheets to connect together in a matching
column on a single sheet. Which function should the analyst use? –
ANSWER - VLOOKUP
An analyst working to aggregate data in databases uses a Structured
Query Language (SQL) command that returns all matching records in
two tables and the key values in each. Which command has the analyst
used? – ANSWER - INNER JOIN
pg. 1
,2|Page
An analyst working to aggregate data in databases wants to create a
temporary name for a table with a complex name to make Structured
Query Language (SQL) queries simpler. Which command should the
analyst use? – ANSWER - AS
An analyst working to aggregate data in databases uses a Structured
Query Language (SQL) command to create a temporary name for a table
and receives an ERROR message when the command is used. Which
command does the analyst use to create a temporary name for a table? –
ANSWER - FROM
An analyst working in a spreadsheet needs to determine the total
quantity of numerical values within a specific range that are unique.
Which function should the analyst use? – ANSWER - COUNT
DISTINCT
An analyst is working in a database and needs to use a function that will
return all the records from one table and only the matching records from
a second table. How does the analyst determine the order of the tables
using a JOIN function? – ANSWER - The table mentioned first is on the
left.
An analyst working in Google Sheets wants to find the lowest possible
average of monthly sales in a range of values. Which function should the
analyst use? – ANSWER - MIN
pg. 2
,3|Page
An analyst working in Google Sheets wants to calculate the total
revenue of each transaction recorded. Each transaction can have exactly
one item type and the data is organized by a category other than quantity.
Which function should the analyst use? – ANSWER - SUMIF
An analyst working in BigQuery applies a clause to a query creating a
specific set of rows and columns that executes the same process as a
temporary table. Which clause does the analyst apply to the query? –
ANSWER - WITH
An analyst working in Google Sheets wants to multiply individual
revenue amounts by profit margin percentages and then calculate overall
profit margins for a given range. Which function should the analyst use
to save time while performing the calculation? – ANSWER -
SUMPRODUCT
An analyst working with data in Google Sheets wants to calculate the
total sales for each department, the number of products each department
sold, and the department that generated the most revenue, but the data in
the original spreadsheet must be maintained. Which approach should the
analyst take? – ANSWER - Use a pivot table to make calculations
Which best practice helps to ensure the integrity of data before
beginning to work on a data set? – ANSWER - Data validation
pg. 3
, 4|Page
An analyst is comparing the common features of R and Python
programming languages. Which feature do both programming languages
share? – ANSWER - They both offer communities for code development
and support.
What does an analyst use to identify how words and symbols should be
used in R programming language? – ANSWER - Syntax
What is a unique challenge an analyst faces when using R programming
language as opposed to Python? – ANSWER - Users may have difficulty
using R programming language naming conventions.
An analyst wants to record the steps of analysis so they can double-
check their work and solve problems. How do general-purpose
programming languages such as R support this? – ANSWER - By
automatically storing code to reproduce and share work at any time
A web designer is responsible for the layout and styling of web pages
that feature text, graphics, and video. The web designer needs to use a
programming language that provides structure for web pages and is used
to connect to hosting platforms. Which programming language does the
web designer use? – ANSWER - Hypertext Markup Language v5
A web-application developer designs network applications used all
across the web. They need to use a programming language to create
enterprise web applications that can run on multiple clients. Which
pg. 4
