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PK0-005 Practice Question: The 100% rule in work breakdown structure (WBS)…
What is the 100% rule in work breakdown structure (WBS) creation?
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
✓
The WBS must include all work required to complete the project scope.
The 100% rule states that the WBS must include 100% of the work defined by the project scope and capture all deliverables, both internal and external. The sum of the work at the lower levels must equal 100% of the work at the parent level.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The WBS must be deliverable-oriented.
Why it's wrong here
That is a characteristic of WBS, but not the 100% rule.
- ✗
The WBS must be decomposed to at least three levels.
Why it's wrong here
There is no fixed number of levels.
- ✗
The WBS must be approved by the customer.
Why it's wrong here
Customer approval is part of scope verification.
- ✓
The WBS must include all work required to complete the project scope.
Why this is correct
Correct. The 100% rule ensures no work is omitted.
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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.