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PK0-005 Practice Question: A project manager is reviewing the project…
A project manager is reviewing the project schedule and notices that the critical path has a duration of 120 days. One activity on the critical path has a duration of 15 days and a total float of 0. If the duration of that activity is reduced by 5 days, what is the new critical path duration?
⚠ Common exam trap
The trap here is that candidates may mistakenly think reducing a critical path activity's duration does not affect the overall critical path, or they may confuse total float with free float, leading them to choose the original duration or an incorrect reduced value.
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
✓
115 days
The critical path is the longest path in the project schedule, and any delay on a critical path activity directly extends the project duration. Since the activity on the critical path has a total float of 0, reducing its duration by 5 days reduces the total critical path duration from 120 days to 115 days.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
115 days
Why this is correct
Reducing a critical path activity reduces project duration by the same amount.
- ✗
100 days
Why it's wrong here
The reduction is only 5 days, not 20.
- ✗
120 days
Why it's wrong here
The duration would only remain the same if the activity was not on the critical path.
- ✗
125 days
Why it's wrong here
Reducing duration cannot increase the project duration.
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JA
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.