mediumMultiple ChoiceObjective-mapped
PK0-005 Practice Question: Refer to the exhibit
Exhibit
Predecessors: A -> B, C; B -> D; C -> D; D -> E Activity durations: A (5 days), B (3 days), C (4 days), D (2 days), E (1 day)
Refer to the exhibit. What is the total duration of the critical path?
⚠ Common exam trap
Candidates may incorrectly sum Path A-B-D-E and get 13 days if they misread activity D's duration as 3 instead of 2, or they may forget to include all activities along the 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 network diagram, determining the minimum project duration. In this exhibit, Path A-C-D-E totals 3+4+3+2=12 days, which is longer than Path A-B-D-E at 3+5+2+1=11 days. Therefore, the total duration of the critical path is 12 days, making option C 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
Underestimates the durations.
- ✗
13 days
Why it's wrong here
Overestimates the durations.
- ✓
12 days
Why this is correct
Correct: A-C-D-E is the critical path at 12 days.
- ✗
11 days
Why it's wrong here
This is the duration of the non-critical path A-B-D-E.
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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.