The answer is 50 days. This is the total duration of the critical path, which is defined as the longest sequence of dependent activities in a project network diagram, and it determines the shortest possible time to complete the project. In this case, the critical path runs through activities A, C, E, G, and I, and adding their individual durations together yields 50 days, as these tasks have zero total float. On the CompTIA Project+ PK0-005 exam, critical path duration calculation tests your ability to identify the path with the greatest cumulative duration, not the one with the most activities—a common trap is mistaking a shorter path with more tasks for the critical one. To avoid this, always sum the durations fully and look for zero float as confirmation. A helpful memory tip is “Longest path, shortest time”—the critical path’s total duration is the project’s minimum finish date.
PK0-005 Tools and Documentation Practice Question
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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
50 days
The critical path is the longest path through the project network diagram, determining the shortest possible project duration. By summing the durations of all activities on the critical path (e.g., A→C→E→G→I), the total duration is 50 days. This is calculated by adding the individual task durations along the path with zero total float.
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.
✗
5 days
Why it's wrong here
5 days is only the duration of Deployment, not the entire critical path.
✓
50 days
Why this is correct
The critical path includes all tasks in sequence: 10+15+20+10+5 = 50 days.
Related concept
Read the scenario before looking for a memorised answer.
✗
30 days
Why it's wrong here
30 days is not the sum of any contiguous path; the full critical path is 50 days.
✗
15 days
Why it's wrong here
15 days is the duration of Design, not the full path.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the misconception that the critical path is the path with the most tasks or the shortest duration, rather than the longest total duration path with zero float.
Detailed technical explanation
How to think about this question
The critical path method (CPM) identifies the sequence of tasks that cannot be delayed without affecting the project finish date. Each task on the critical path has zero float, meaning any delay directly extends the project duration. In practice, project managers use forward and backward pass calculations to determine early start, early finish, late start, and late finish dates, ensuring accurate schedule management.
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 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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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: 50 days — The critical path is the longest path through the project network diagram, determining the shortest possible project duration. By summing the durations of all activities on the critical path (e.g., A→C→E→G→I), the total duration is 50 days. This is calculated by adding the individual task durations along the path with zero total float.
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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Question Discussion
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