mediumMultiple ChoiceObjective-mapped
PK0-005 Practice Question: Refer to the exhibit
Exhibit
Task A: Start 1/1, Duration 5d, No Predecessor Task B: Start 1/6, Duration 3d, Predecessor: A Task C: Start 1/6, Duration 4d, Predecessor: A Task D: Start 1/10, Duration 2d, Predecessor: B, C Task E: Start 1/12, Duration 1d, Predecessor: D Milestone M1: End of Task E
Refer to the exhibit. What is the critical path duration?
⚠ Common exam trap
Many exam-takers assume the path with the most activities or the largest individual activity durations is the critical path, but they must sum all durations along each complete path from start to end to find the true longest path.
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
✓
12 days
The critical path is the longest path through the project network diagram, determining the minimum project duration. Based on the exhibit, the valid paths are: Start→A→C→F→End = 3 + 4 + 5 = 12 days; Start→B→E→End = 2 + 7 = 9 days. Other paths are shorter. Therefore, the critical path duration is 12 days, making option D correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
10 days
Why it's wrong here
This path sums to 10 days, which is shorter than the critical path. The critical path is the longest path.
- ✗
11 days
Why it's wrong here
This path sums to 11 days, but the correct critical path is 12 days.
- ✗
13 days
Why it's wrong here
This path sums to 13 days, likely incorrectly including an activity not on any complete path.
- ✓
12 days
Why this is correct
The critical path is Start→A→C→F→End with a duration of 3+4+5=12 days. This is the longest path through the network.
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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.