CAPM Predictive Plan-Based Methodologies Practice Question
This CAPM practice question tests your understanding of predictive plan-based methodologies. 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.
You are managing a software development project following a predictive plan-based methodology. The project schedule is based on the critical path method (CPM). While reviewing the schedule, you notice that a non-critical path has a total float of -5 days, indicating a scheduling error. The project is in the planning phase, and the baseline has not yet been set. What should you do to resolve this negative float?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Analyze the schedule logic, correct any errors in dependencies or duration estimates, and recalculate the schedule.
Negative float on a non-critical path indicates an error in the schedule logic, such as incorrect dependencies or unrealistic durations. Since the baseline is not set, the project manager should review and correct the logic. Option B is correct. Option A would incorrectly make it critical. Option C compresses unnecessarily. Option D ignores the error.
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.
✗
Apply schedule compression techniques like crashing or fast-tracking to the non-critical path.
Why it's wrong here
Compression is used for critical path, not for fixing negative float.
✓
Analyze the schedule logic, correct any errors in dependencies or duration estimates, and recalculate the schedule.
Why this is correct
Correcting the schedule logic resolves negative float.
Related concept
Static NAT maps one inside address to one outside address.
✗
Ignore the negative float since it's not on the critical path.
Why it's wrong here
Negative float indicates an error that must be fixed.
✗
Add the non-critical path to the critical path to eliminate the negative float.
Why it's wrong here
This incorrectly changes the definition of 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 CAPM NAT questions on configuration and troubleshooting.
Predictive Plan-Based Methodologies — This question tests Predictive Plan-Based Methodologies — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Analyze the schedule logic, correct any errors in dependencies or duration estimates, and recalculate the schedule. — Negative float on a non-critical path indicates an error in the schedule logic, such as incorrect dependencies or unrealistic durations. Since the baseline is not set, the project manager should review and correct the logic. Option B is correct. Option A would incorrectly make it critical. Option C compresses unnecessarily. Option D ignores the error.
What should I do if I get this CAPM 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 CAPM NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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