Quick Answer
The answer is the lessons learned register. This is the correct document to update during phase closure in a predictive life cycle because it serves as the central repository for capturing knowledge gained throughout the project, including what worked well and what did not. The lessons learned register is a living document that is continuously updated during the project and formally reviewed at phase or project closure to inform future phases or subsequent projects. On the Certified Associate in Project Management CAPM exam, this concept tests your understanding of the Closing Process Group and the distinction between the lessons learned register and the lessons learned documentation that may be finalized in the project’s final close-out. A common trap is confusing the lessons learned register with the project management plan or the risk register; remember that the register is specifically for capturing insights, not for planning or tracking risks. Memory tip: think of the lessons learned register as the project’s “diary of wisdom”—you write in it as you go, and you read it before starting the next chapter.
This CAPM practice question tests your understanding of predictive plan-based methodologies. 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 closing a phase in a predictive life cycle. Which document should be updated to record lessons learned for future phases?
Project charter
Why wrong: The project charter authorizes the project and is not updated with lessons learned.
Lessons learned register
Correct: The lessons learned register is the repository for such information.
Risk register
Why wrong: The risk register tracks individual risks, not general lessons.
Issue log
Why wrong: The issue log documents issues, not lessons learned.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Lessons learned register
Lessons learned are captured in the lessons learned register throughout the project and used to improve future performance.
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.
Project charter
Why it's wrong here
The project charter authorizes the project and is not updated with lessons learned.
Lessons learned register
Why this is correct
Correct: The lessons learned register is the repository for such information.
Related concept
Read the scenario before looking for a memorised answer.
Risk register
Why it's wrong here
The risk register tracks individual risks, not general lessons.
Issue log
Why it's wrong here
The issue log documents issues, not lessons learned.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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 CAPM 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 CAPM exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Predictive Plan-Based Methodologies — This question tests Predictive Plan-Based Methodologies — Read the scenario before looking for a memorised answer..
The correct answer is: Lessons learned register — Lessons learned are captured in the lessons learned register throughout the project and used to improve future performance.
Identify which CAPM exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This CAPM practice question is part of Courseiva's free PMI 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 CAPM exam.
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