PK0-005 Tools and Documentation Practice Question
A project manager needs to show the sequence of project activities and their dependencies to identify the critical path. Which tool should they use?
⚠ Common exam trap
CompTIA often tests the distinction between a Gantt chart and a network diagram, trapping candidates who think a Gantt chart shows dependencies clearly enough for critical path analysis, when in fact only a network diagram provides the explicit logical relationships needed for forward/backward pass calculations.
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
✓
Network diagram
A network diagram is the correct tool because it visually maps the sequence of project activities and their dependencies using nodes and arrows, which is essential for identifying the critical path. The critical path is the longest path through the network diagram, determining the shortest possible project duration. This tool directly supports forward and backward pass calculations to find total float and critical activities.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Network diagram
Why this is correct
A network diagram maps activities as nodes linked by dependency arrows, exposing the longest path through the schedule — the critical path. This directly satisfies the stem's requirement to show sequence and dependencies, which a Gantt chart's timeline bars obscure and a RACI matrix or resource histogram cannot represent at all.
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Milestone chart
Why it's wrong here
A milestone chart marks significant dates or checkpoints, carrying no duration, sequencing or dependency information, so it cannot identify a critical path. It is tempting because milestones appear on schedules, but it is used for executive progress reporting, not network analysis.
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Burndown chart
Why it's wrong here
A burndown chart plots remaining work against time to track sprint progress, so it carries no activity sequencing or dependency data and cannot reveal a critical path. It is tempting because it is a common project artefact, but it belongs to agile progress monitoring, not schedule network analysis.
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Gantt chart
Why it's wrong here
A Gantt chart displays activities against a timeline with dependencies, but it does not calculate float or identify the critical path; that requires critical path method scheduling. It is tempting because the bars show sequence, yet the critical path emerges only from forward and backward pass calculations.
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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.