Quick Answer
The answer is the business case. This document serves as a critical input to the project charter because it provides the project justification and outlines the strategic value, including high-level risks that could threaten the project’s feasibility or expected returns. When a project manager is developing the project charter and needs to identify high-level risks, the business case is the primary source for surfacing these early uncertainties, such as market volatility, resource constraints, or regulatory changes, before detailed planning begins. On the CompTIA Project+ PK0-005 exam, this question tests your understanding of how inputs flow into the charter phase, often appearing as a distractor where candidates mistakenly choose the project management plan or risk register—both of which are created later. A common trap is confusing the business case with the benefits management plan; remember, the business case is the pre-charter document that justifies the project and flags initial risks. Memory tip: think “Business case = Big picture risks before the charter starts.”
This PK0-005 practice question tests your understanding of project management concepts. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A project manager is developing the project charter and needs to identify high-level risks. Which document should be used as an input?
Business case
Business case provides high-level risks and justification for the project, used as input to the charter.
Risk register
Why wrong: Risk register is an output of risk management, not an input to the charter.
Stakeholder register
Why wrong: Stakeholder register is created after the charter, during identify stakeholders.
Lessons learned
Why wrong: Lessons learned are from past projects but are not a primary input to the charter.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Business case
The business case is a key input to the project charter because it provides the justification for the project, including high-level risks that could affect the project's viability. The project manager uses the business case to identify these risks early, ensuring they are documented in the charter before detailed planning begins.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Business case
Why this is correct
Business case provides high-level risks and justification for the project, used as input to the charter.
Related concept
Read the scenario before looking for a memorised answer.
Risk register
Why it's wrong here
Risk register is an output of risk management, not an input to the charter.
Stakeholder register
Why it's wrong here
Stakeholder register is created after the charter, during identify stakeholders.
Lessons learned
Why it's wrong here
Lessons learned are from past projects but are not a primary input to the charter.
Common exam traps
The trap here is that candidates often confuse the risk register (a planning output) with the business case (a pre-project input), leading them to select Option B instead of recognizing that high-level risks are derived from the business case before detailed risk management begins.
Trap categories for this question
Command / output trap
Risk register is an output of risk management, not an input to the charter.
Detailed technical explanation
The project charter is formally authorized by the project sponsor and uses the business case to capture high-level risks that could impact the project's success. Under PMI's PMBOK Guide, the business case includes a cost-benefit analysis and risk assessment that directly feeds into the charter's risk section. In real-world scenarios, a project manager might extract risks like market volatility or regulatory changes from the business case to ensure the charter reflects strategic threats.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the PK0-005 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Project Management Concepts — study guide chapter
Learn the concepts, then practise the questions
Project Management Concepts practice questions
Targeted practice on this topic area only
All PK0-005 questions
500 questions across all exam domains
CompTIA Project+ PK0-005 study guide
Full concept coverage aligned to exam objectives
PK0-005 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise PK0-005 questions linked to Project Life Cycle Phases.
Practise PK0-005 questions linked to Basics of IT Infrastructure and IT Project Management.
Practise PK0-005 questions linked to Project Management Concepts.
Practise PK0-005 questions linked to Tools and Documentation.
Practise PK0-005 questions linked to PK0-005 fundamentals.
Practise PK0-005 questions linked to PK0-005 scenario.
Practise PK0-005 questions linked to PK0-005 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Project Management Concepts — This question tests Project Management Concepts — Read the scenario before looking for a memorised answer..
The correct answer is: Business case — The business case is a key input to the project charter because it provides the justification for the project, including high-level risks that could affect the project's viability. The project manager uses the business case to identify these risks early, ensuring they are documented in the charter before detailed planning begins.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
Last reviewed: Jun 24, 2026
This PK0-005 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PK0-005 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.