- A
It can be used for both cost and duration estimation.
Correct. Parametric estimation applies to both cost and time.
- B
It requires a reliable source of data to be accurate.
Correct. Accuracy depends on the quality of the historical data.
- C
It uses a statistical relationship between historical data and variables.
Correct. It relies on historical data and mathematical models.
- D
It is less accurate than analogous estimation.
Why wrong: Parametric is generally more accurate than analogous if reliable data is used.
- E
It is a bottom-up technique.
Why wrong: Parametric can be top-down or bottom-up, but it is not exclusively bottom-up.
Question 396 of 1,000
PK0-005 Project Life Cycle Practice Question
This PK0-005 practice question tests your understanding of project life cycle. 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 estimating activity durations for a construction project. She uses a parametric estimate based on 100 square meters per day. If the total area is 500 square meters, the estimated duration is 5 days. Which THREE statements are true about parametric estimation?
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
✓
It can be used for both cost and duration estimation.
Parametric estimation uses statistical relationships between historical data and other variables. It is a quantitative technique that can be very accurate if the parameters are reliable. It can be used in conjunction with other methods.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
It can be used for both cost and duration estimation.
Why this is correct
Correct. Parametric estimation applies to both cost and time.
Related concept
OSPF neighbours must agree on key parameters.
- ✓
It requires a reliable source of data to be accurate.
Why this is correct
Correct. Accuracy depends on the quality of the historical data.
Related concept
OSPF neighbours must agree on key parameters.
- ✓
It uses a statistical relationship between historical data and variables.
Why this is correct
Correct. It relies on historical data and mathematical models.
Related concept
OSPF neighbours must agree on key parameters.
- ✗
It is less accurate than analogous estimation.
Why it's wrong here
Parametric is generally more accurate than analogous if reliable data is used.
- ✗
It is a bottom-up technique.
Why it's wrong here
Parametric can be top-down or bottom-up, but it is not exclusively bottom-up.
Common exam traps
Common exam trap: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Detailed technical explanation
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
- OSPF neighbours must agree on key parameters.
- Router ID selection can affect neighbour relationships and LSDB output.
- OSPF cost influences the preferred path.
- A route can appear in OSPF information but not become the installed route.
TExam Day Tips
- Check area mismatch first when OSPF adjacency fails.
- Review passive interfaces when a network is advertised but no neighbour forms.
- Use show ip ospf neighbor and show ip route clues carefully.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Real-world example
How this comes up in practice
A practitioner preparing for the PK0-005 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related PK0-005 OSPF questions on adjacency and route selection.
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Project Life Cycle — study guide chapter
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FAQ
Questions learners often ask
What does this PK0-005 question test?
Project Life Cycle — This question tests Project Life Cycle — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: It can be used for both cost and duration estimation. — Parametric estimation uses statistical relationships between historical data and other variables. It is a quantitative technique that can be very accurate if the parameters are reliable. It can be used in conjunction with other methods.
What should I do if I get this PK0-005 question wrong?
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related PK0-005 OSPF questions on adjacency and route selection.
What is the key concept behind this question?
OSPF neighbours must agree on key parameters.
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Last reviewed: Jul 4, 2026
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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