- A
Histogram
Why wrong: Histogram shows frequency distribution, not causes.
- B
Control chart
Why wrong: Control chart monitors process variation over time, not root cause analysis.
- C
Cause-and-effect diagram
Fishbone diagram helps identify and categorize root causes.
- D
Pareto chart
Why wrong: Pareto chart prioritizes causes, but does not identify them.
Question 928 of 1,000
PK0-005 Tools and Documentation Practice Question
This PK0-005 practice question tests your understanding of tools and documentation. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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 notices that a task is taking longer than planned and the project is falling behind schedule. The project manager wants to identify the root cause of the delay. Which quality tool would be most appropriate?
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
✓
Cause-and-effect diagram
The cause-and-effect diagram (also known as a fishbone or Ishikawa diagram) is the most appropriate quality tool for identifying the root cause of a delay because it systematically maps potential causes (e.g., resources, processes, environment) to the observed effect (the schedule delay). Unlike other tools that show data distribution or trends, this diagram is designed for root cause analysis by visually brainstorming and categorizing contributing factors.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Histogram
Why it's wrong here
Histogram shows frequency distribution, not causes.
- ✗
Control chart
Why it's wrong here
Control chart monitors process variation over time, not root cause analysis.
- ✓
Cause-and-effect diagram
Why this is correct
Fishbone diagram helps identify and categorize root causes.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Pareto chart
Why it's wrong here
Pareto chart prioritizes causes, but does not identify them.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse a Pareto chart (which ranks causes by frequency) with root cause analysis, but the Pareto chart only shows what is most common, not the underlying cause-effect relationships that the cause-and-effect diagram explicitly maps.
Trap categories for this question
Command / output trap
Histogram shows frequency distribution, not causes.
Detailed technical explanation
How to think about this question
The cause-and-effect diagram is constructed by placing the problem (delay) at the 'head' of the fishbone and drawing major categories (e.g., People, Process, Technology, Environment) as 'bones.' Each category is then broken down into sub-causes through brainstorming, allowing the team to trace the delay back to specific factors like resource unavailability or inefficient workflows. In project management, this tool is often used during the Plan Quality Management process to proactively identify potential causes of variance before they escalate.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this PK0-005 question test?
Tools and Documentation — This question tests Tools and Documentation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Cause-and-effect diagram — The cause-and-effect diagram (also known as a fishbone or Ishikawa diagram) is the most appropriate quality tool for identifying the root cause of a delay because it systematically maps potential causes (e.g., resources, processes, environment) to the observed effect (the schedule delay). Unlike other tools that show data distribution or trends, this diagram is designed for root cause analysis by visually brainstorming and categorizing contributing factors.
What should I do if I get this PK0-005 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 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.
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