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PK0-005 Tools and Documentation Practice Question

A project manager is reviewing quality control results. Which THREE tools are commonly used to identify the root causes of defects or to prioritize improvement efforts? (Choose three.)

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

✓

Pareto chart

Cause-and-effect diagram (fishbone) helps identify root causes; Pareto chart applies 80/20 rule to prioritize; control chart monitors process variation. Scatter diagram shows relationships but not root cause; run chart shows trends over time.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✓

    Pareto chart

    Why this is correct

    Helps prioritize issues by frequency or impact (80/20 rule).

  • ✗

    Run chart

    Why it's wrong here

    Shows data over time but does not prioritize or identify root causes.

  • ✗

    Scatter diagram

    Why it's wrong here

    Shows relationship between two variables but does not directly identify root causes.

  • ✓

    Control chart

    Why this is correct

    Identifies special cause variation, which can indicate root causes needing investigation.

  • ✓

    Cause-and-effect diagram

    Why this is correct

    Used to brainstorm and identify root causes of problems.

About these practice questions

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

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.