PK0-005 Tools and Documentation Practice Question
A project has a budget at completion (BAC) of $200,000. The earned value (EV) is $100,000, and the actual cost (AC) is $120,000. What is the estimate at completion (EAC) assuming the current cost performance index (CPI) will remain the same?
⚠ Common exam trap
PK0-005 often tests whether candidates apply the correct EAC formula — the trap is using EAC = AC + (BAC − EV) when the question explicitly says the current CPI will remain the same, which requires EAC = BAC / CPI.
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
✓
$240,000
EAC is calculated as BAC / CPI when the current cost performance index is expected to continue. CPI = EV / AC = 100,000 / 120,000 = 0.8333. Therefore EAC = 200,000 / 0.8333 = $240,000. This reflects the projected total cost if the current cost inefficiency persists.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
$240,000
Why this is correct
Dividing BAC by CPI gives the EAC when current cost performance persists: CPI is $100,000 ÷ $120,000 = 0.833, so $200,000 ÷ 0.833 ≈ $240,000. This satisfies the stem's constraint that the existing CPI continues unchanged.
- ✗
$180,000
Why it's wrong here
This subtracts the cost variance from BAC, which forecasts completion only if the remaining work proceeds at the planned rate. Since the stem states the current CPI will persist, the EAC must divide BAC by CPI, yielding $240,000 rather than $180,000.
- ✗
$220,000
Why it's wrong here
Using CPI = EV/AC = 0.833, EAC = BAC/CPI = $200,000/0.833 = $240,000, so $220,000 is wrong. The figure is tempting because it adds the $20,000 cost overrun to BAC, but that assumes the variance will not recur.
- ✗
$250,000
Why it's wrong here
This divides BAC by CPI (200,000 ÷ 0.833), but the EAC formula when CPI persists is BAC ÷ CPI, giving $240,000, not $250,000. It is tempting because it resembles a rounded result, yet it matches no valid earned-value formula for this scenario.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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.