DAF Foundations OF Lean Practice Question
During a retrospective, the team notices they spend 30% of their time fixing defects in previously delivered code. Which Lean principle does this violate?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Build Quality In.
Building quality in is a core Lean principle; rework is pure waste.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Respect People.
Why it's wrong here
While a Lean principle, it does not directly address the technical debt/defect issue.
- ✗
Optimize the Whole.
Why it's wrong here
While true, 'Build Quality In' is the more specific principle violated by rework.
- ✗
Deliver Fast.
Why it's wrong here
Deliver Fast is a principle, but rework specifically points to quality issues.
- ✓
Build Quality In.
Why this is correct
The goal is to avoid defects, not just fix them later.
About these practice questions
This DAF question is part of Courseiva's 211-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official PMI exam blueprint
This DAF 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 DAF exam.