The answer is the Critical Path Method (CPM). This technique is correct because it systematically calculates the longest path through the activity network diagram by determining early start, early finish, late start, and late finish dates for every activity, identifying those with zero total float that form the critical path and dictate the shortest possible project duration. On the PMP exam, this question tests your ability to distinguish CPM from other scheduling tools like PERT or schedule compression techniques; a common trap is confusing the critical path with the path having the most activities rather than the longest duration. To remember, think of CPM as the “zero-float finder” — if an activity has no slack, it’s on the critical path.
PMP Process — Managing Technical Aspects Practice Question
This PMP practice question tests your understanding of process — managing technical aspects. 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.
A project manager is developing the project schedule and wants to determine the critical path. The activity network diagram shows multiple paths. Which technique should the project manager use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Critical Path Method (CPM)
The Critical Path Method (CPM) is the correct technique because it is specifically designed to identify the longest path through a project's activity network diagram, which determines the shortest possible project duration. By calculating early start, early finish, late start, and late finish dates for each activity, CPM reveals which activities have zero float and thus constitute the critical path. This directly answers the project manager's goal of determining the critical path from the network diagram.
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.
✗
Resource leveling
Why it's wrong here
Resource leveling resolves resource over-allocation, not for determining critical path.
✗
Gantt chart
Why it's wrong here
A Gantt chart shows activities over time but does not mathematically determine the critical path.
✓
Critical Path Method (CPM)
Why this is correct
CPM calculates the longest path and identifies critical activities.
Related concept
Read the scenario before looking for a memorised answer.
✗
Program Evaluation and Review Technique (PERT)
Why it's wrong here
PERT is used for estimating durations with uncertainty, not for critical path identification.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse PERT with CPM because both involve network diagrams, but PERT is for estimating durations under uncertainty while CPM is specifically for identifying the critical path using deterministic durations.
Trap categories for this question
Command / output trap
A Gantt chart shows activities over time but does not mathematically determine the critical path.
Detailed technical explanation
How to think about this question
CPM relies on a deterministic, single-point duration estimate for each activity, unlike PERT which uses probabilistic estimates. The critical path is identified by performing a forward pass to calculate early start and early finish dates, then a backward pass to calculate late start and late finish dates; activities with zero total float (where early start equals late start) lie on the critical path. In real-world projects, multiple critical paths can exist, and any delay on a critical path activity directly extends the project's finish date, making CPM essential for schedule compression and risk analysis.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this PMP question in full detail.
Process — Managing Technical Aspects — This question tests Process — Managing Technical Aspects — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Critical Path Method (CPM) — The Critical Path Method (CPM) is the correct technique because it is specifically designed to identify the longest path through a project's activity network diagram, which determines the shortest possible project duration. By calculating early start, early finish, late start, and late finish dates for each activity, CPM reveals which activities have zero float and thus constitute the critical path. This directly answers the project manager's goal of determining the critical path from the network diagram.
What should I do if I get this PMP 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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Refer to the exhibit. What is the critical path duration?
easy
A.9 days
✓ B.11 days
C.10 days
D.12 days
Why B: The critical path is the longest path through the network diagram, determining the shortest possible project duration. By summing the durations along each path, Path A-B-E-F totals 11 days (3+2+4+2), which is longer than the other paths, making 11 days the correct critical path duration.
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This PMP practice question is part of Courseiva's free PMI 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 PMP exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.