easyMultiple ChoiceObjective-mapped
PK0-005 Practice Question: Refer to the exhibit
Exhibit
Refer to the exhibit. ``` Project: MobileApp v2.0 Task Name Duration Predecessors 1. Requirements 10d - 2. Design 15d 1 3. Coding 20d 2 4. Testing 10d 3 5. Deployment 5d 4 ```
Refer to the exhibit. The project manager is reviewing the project schedule. What is the total duration of the critical path?
⚠ Common exam trap
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.
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
✓
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.
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.
- ✗
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.
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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.