WGU D685: Practical Applications of Prompt Engineering in AI - Complete Test Bank with Actual Questions, Correct Answers & Detailed Rationales (Latest Exam Update 2026)

WGU D685: Practical Applications of Prompt
Engineering in AI - Complete Test Bank with
Actual Questions, Correct Answers & Rationales
(Latest Exam Update 2026)

Question 1
A company that specializes in financial advice wants to implement AI to improve
business processes. Which task is an AI system well-suited for in this context?
A. Eliminating asset risk
B. Reading client's facial expressions
C. Summarizing documents
D. Generating new products
Correct Answer: C
Rationale: AI systems excel at summarizing large volumes of text-based information
quickly and accurately. Summarizing documents is a well-suited task for AI in financial
advice contexts.


Question 2
In order to improve its social media platform, a company is starting to incorporate AI
into the platform's functionality. Which task is well-suited for AI in this context?
A. Backing up user profile data
B. Understanding users' emotions
C. Interpreting cultural nuances
D. Extracting text from images
Correct Answer: D
Rationale: Optical Character Recognition (OCR) and text extraction from images are
tasks well-suited for AI, enabling automated processing of visual content.


Question 3
A company is developing new software for programming and wants to incorporate AI.
Which software task is well-suited for AI?
A. Explaining code errors
B. Defining code variables


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,C. Performing user testing
D. Specifying project structure
Correct Answer: A
Rationale: AI models are effective at analyzing code and explaining errors, helping
developers debug and understand issues more efficiently.


Question 4
Which benefit comes with well-designed generative AI interfaces?
A. They give each user an experience with unique generated outputs
B. They filter output that contains errors and bias
C. They enable users to specify parameters or constraints
D. They allow users to avoid exposure to misinformation
Correct Answer: C
Rationale: Well-designed generative AI interfaces allow users to specify parameters,
constraints, and preferences, leading to more relevant and controlled outputs.


Question 5
What should a person do first when creating an AI prompt for song lyrics?
A. Record the completed version of the song
B. Write a rough draft of the song lyrics
C. Finalize the melody for the song
D. Choose a specific topic for the song
Correct Answer: D
Rationale: Defining a specific topic first provides clear direction for the AI, enabling it
to generate more relevant and focused lyrics.


Question 6
Which step is important before creating a prompt for AI to develop a social media post?
A. Clarifying the purpose of the post
B. Considering the ethical ramifications
C. Writing a version of the post manually
D. Uploading all previous posts for comparison
Correct Answer: A
Rationale: Clarifying the purpose of the post ensures the AI generates content that
aligns with the desired goals and audience.


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,Question 7
A high school student is entering their senior year and needs to choose an elective. The
student wants to go into a nursing program in college and is considering taking calculus
after finishing a precalculus course. Which prompt for AI is well-suited for helping the
student decide on an elective in this context?
A. "I want to be a nurse, and I need to choose an elective. How often do nurses have to
perform math calculations?"
B. "I want to go to college for nursing. Should I take a calculus course in high school to
prepare for nursing studies?"
C. "I am considering taking a calculus course in my final year of high school. What are
the primary theorems of calculus?"
D. "I need to decide which elective to take in my final year of high school. How similar
are calculus and precalculus courses?"
Correct Answer: B
Rationale: This prompt directly addresses the student's specific situation, career goal
(nursing), and the decision about taking calculus, providing the most relevant guidance.


Question 8
A person wants to use generative AI to write portions of a play script. Part of a particular
prompt includes, "You are an independent teenager." What is the key prompt
component demonstrated in the scenario?
A. Context
B. Persona
C. Instructions
D. Output format
Correct Answer: B
Rationale: "You are an independent teenager" establishes a persona—a specific
character role the AI should adopt when generating the script.


Question 9
A person wants an AI chatbot to write about a math topic. One part of the prompt is "in
the form of song lyrics." What is the key prompt component demonstrated in the
scenario?
A. Persona
B. Context


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, C. Output format
D. Instructions
Correct Answer: C
Rationale: "In the form of song lyrics" specifies the desired output format, guiding the
AI on how the response should be structured.


Question 10
A person wants to use an AI-based search tool to find recipe ideas for dinner. The
person includes "gluten-free" as part of the prompt. Which term refers to this key
component of a prompt?
A. Persona
B. Output format
C. Instructions
D. Context
Correct Answer: D
Rationale: "Gluten-free" provides context—background information that helps the AI
refine its search results to match the user's dietary needs.


Question 11
What is the component of a prompt that includes background knowledge and relevant
facts that contextualize a user's query about a career change?
A. Input content
B. Output format
C. Persona
D. Context
Correct Answer: D
Rationale: Context includes the background knowledge and relevant facts that frame
the query and help the AI generate more accurate responses.


Question 12
A person wants to use a large language model to help them write a vacation rental
property description. Which benefit comes with writing an effective prompt?
A. Reduced need for clarifying exchanges
B. A response that is proven to be effective
C. Improved interface for user-model interactions
D. Description customization for each reader

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