Quick Answer
The answer is the Gantt chart. This is the correct tool to assess impact on the critical path after a delay because it visually maps task dependencies, durations, and the sequence of critical tasks, allowing the project manager to immediately trace how a delayed deliverable’s dependency ripples through the schedule. On the CompTIA Project+ PK0-005 exam, this question tests your understanding that while network diagrams show logical relationships, the Gantt chart is the practical, first-look tool for real-time schedule updates and communication. A common trap is choosing the critical path method (CPM) itself, but CPM is a calculation technique, not a visual tool—the Gantt chart is what you actually open to see the impact. For a memory tip, remember: “Gantt gives the glance” because its timeline bars let you instantly spot which critical tasks are pushed out, making it the go-to for impact assessment before any schedule revision.
This PK0-005 practice question tests your understanding of tools and documentation. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
During project execution, a team member reports that a critical deliverable is behind schedule due to an unexpected dependency. The project manager needs to update the project schedule and communicate the impact. Which tool should the project manager use first to assess the impact on the critical path?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Cost baseline
Why wrong: The cost baseline is for budget, not schedule dependencies.
Change log
Why wrong: The change log records approved changes, not current schedule status.
Gantt chart
A Gantt chart shows task durations, dependencies, and critical path, allowing quick impact analysis.
Risk register
Why wrong: The risk register lists risks, but does not show schedule impact.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Gantt chart
The Gantt chart is the correct tool because it visually displays task dependencies, durations, and the critical path. By reviewing the Gantt chart, the project manager can immediately see which tasks are on the critical path and how the delayed deliverable's dependency affects the overall project timeline, enabling an accurate impact assessment before updating the schedule.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Cost baseline
Why it's wrong here
The cost baseline is for budget, not schedule dependencies.
Change log
Why it's wrong here
The change log records approved changes, not current schedule status.
Gantt chart
Why this is correct
A Gantt chart shows task durations, dependencies, and critical path, allowing quick impact analysis.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Risk register
Why it's wrong here
The risk register lists risks, but does not show schedule impact.
Common exam traps
The trap here is that candidates confuse the risk register (which logs potential issues) with the need to assess actual schedule impact, forgetting that the Gantt chart is the primary tool for visualizing dependencies and the critical path in real time.
Trap categories for this question
Command / output trap
The risk register lists risks, but does not show schedule impact.
Detailed technical explanation
In project management, the critical path is the longest sequence of dependent tasks that determines the project's minimum duration. A Gantt chart with dependency links (e.g., finish-to-start) allows the project manager to perform a forward and backward pass to calculate float and identify which tasks are critical; any delay on a critical task directly extends the project end date. Real-world tools like Microsoft Project or Jira use Gantt charts to automatically recalculate the critical path when a task is updated, providing immediate visual feedback on schedule impact.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Tools and Documentation — study guide chapter
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FAQ
Tools and Documentation — This question tests Tools and Documentation — Read the scenario before looking for a memorised answer..
The correct answer is: Gantt chart — The Gantt chart is the correct tool because it visually displays task dependencies, durations, and the critical path. By reviewing the Gantt chart, the project manager can immediately see which tasks are on the critical path and how the delayed deliverable's dependency affects the overall project timeline, enabling an accurate impact assessment before updating the schedule.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 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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