DAF Foundations OF Lean Practice Question
Which THREE of the following actions support the Lean principle 'Build Quality In'?
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
✓
Using automated regression testing.
Quality is built in by preventing defects through practices like testing early and often.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Deferring testing until the end of the project.
Why it's wrong here
This is the opposite of 'Build Quality In'.
- ✗
Relying on manual testing by an external team.
Why it's wrong here
External, late testing increases defect risk.
- ✓
Using automated regression testing.
Why this is correct
Fast feedback on quality.
- ✓
Performing continuous integration.
Why this is correct
Early detection of integration issues.
- ✓
Implementing Test-Driven Development (TDD).
Why this is correct
Ensures quality from the start.
About these practice questions
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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.