The correct answer is that the task was a predecessor to a critical task. A non-critical task possesses float, meaning it can be delayed without immediately affecting the project’s end date; however, if that task sits on a path that feeds directly into a critical task, its delay consumes that float. Once the float is exhausted, the delay propagates forward, pushing the critical task’s start date and ultimately shifting the entire critical path. On the CompTIA Project+ PK0-005 exam, this scenario tests your understanding of dependency relationships and float consumption—a common trap is assuming non-critical tasks can never impact the critical path. Remember: any task, even one with float, can become a bottleneck if it is a predecessor to a critical task. A useful memory tip is “predecessor power”—a non-critical predecessor can still pull the critical chain.
PK0-005 Project Life Cycle Phases Practice Question
This PK0-005 practice question tests your understanding of project life cycle phases. 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 reviewing the schedule and notices that the critical path has been affected by a delay in a non-critical task. Which of the following is the most likely reason?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The task was a predecessor to a critical task
A non-critical task has float, but if it is a predecessor to a critical task, its delay can consume float and eventually impact the critical path.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The task had a negative float
Why it's wrong here
Negative float indicates a critical path task, not a non-critical task.
✗
The task's duration was underestimated
Why it's wrong here
Underestimation could cause delay, but it would only affect the critical path if the task becomes critical or is a predecessor.
✓
The task was a predecessor to a critical task
Why this is correct
If a non-critical task is a predecessor to a critical task, its delay can push the critical task, thereby affecting the critical path.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
Resource leveling caused the delay
Why it's wrong here
Resource leveling may delay tasks but does not directly cause a non-critical task to affect the critical path.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PK0-005 NAT questions on configuration and troubleshooting.
Project Life Cycle Phases — This question tests Project Life Cycle Phases — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The task was a predecessor to a critical task — A non-critical task has float, but if it is a predecessor to a critical task, its delay can consume float and eventually impact the critical path.
What should I do if I get this PK0-005 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PK0-005 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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. You are managing a software development project with a fixed deadline. The project team consists of 10 developers and 2 testers. The project is currently in the execution phase. During a status review, you find that one of the critical path tasks is two weeks behind schedule due to a key developer being reassigned to another project. The product owner is unwilling to reduce scope. The project sponsor has instructed you to bring the schedule back on track without increasing the budget. The project plan does not include any contingency time. Which of the following is the best course of action?
hard
A.Request a schedule extension from the sponsor
✓ B.Reassign a developer from a non-critical task to the critical task
C.Ask the team to work overtime
D.Add more developers to the task
Why B: Reassigning a developer from a non-critical task (which has float) to the critical path task is the most cost-effective way to recover schedule without additional budget or scope changes.
Last reviewed: Jun 24, 2026
Question Discussion
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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.
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