Quick Answer
The correct answer is weighted average costing because it provides the most accurate inventory valuation by smoothing out price fluctuations over a period. In Dynamics 365 Finance, the weighted average costing method calculates an average cost after each receipt, effectively balancing varying purchase prices so that no single high or low cost distorts the overall valuation. On the Microsoft Dynamics 365 Fundamentals ERP MB-920 exam, this concept tests your understanding of how different costing methods handle price volatility—a common trap is confusing weighted average with moving average, which recalculates after every transaction rather than over a period. Remember the key distinction: weighted average averages costs across a defined period, while moving average updates continuously. A helpful memory tip is to think of “weighted” as a steady scale that balances all receipts, not just the latest one.
This MB-920 practice question tests your understanding of describe dynamics 365 finance. 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 retail company using Dynamics 365 Finance notices that inventory valuations are incorrect due to varying purchase prices. Which costing method will provide the most accurate valuation by averaging costs over a period?
Weighted average
Averages costs over a period, smoothing fluctuations.
Standard cost
Why wrong: Uses fixed costs, not actual purchase prices.
FIFO
Why wrong: Assigns oldest costs first, may cause volatility.
Moving average
Why wrong: Recalculates after each transaction, not period-based.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Weighted average
Option A is correct. Weighted average costing calculates an average cost after each receipt, smoothing out price fluctuations. Option B is wrong because FIFO assigns the oldest cost to sales. Option C is wrong because standard costing uses predetermined costs. Option D is wrong because moving average recalculates after each transaction, not over a period.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Weighted average
Why this is correct
Averages costs over a period, smoothing fluctuations.
Related concept
Read the scenario before looking for a memorised answer.
Standard cost
Why it's wrong here
Uses fixed costs, not actual purchase prices.
FIFO
Why it's wrong here
Assigns oldest costs first, may cause volatility.
Moving average
Why it's wrong here
Recalculates after each transaction, not period-based.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Identify which MB-920 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Describe Dynamics 365 Finance — study guide chapter
Learn the concepts, then practise the questions
Describe Dynamics 365 Finance practice questions
Targeted practice on this topic area only
All MB-920 questions
966 questions across all exam domains
Microsoft Dynamics 365 Fundamentals ERP MB-920 study guide
Full concept coverage aligned to exam objectives
MB-920 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise MB-920 questions linked to Describe Dynamics 365 Supply Chain Management.
Practise MB-920 questions linked to Describe Dynamics 365 Finance.
Practise MB-920 questions linked to Describe the core capabilities of the finance and operations apps.
Practise MB-920 questions linked to Describe shared features and Copilot capabilities.
Practise MB-920 questions linked to Describe Dynamics 365 Human Resources.
Practise MB-920 questions linked to Describe Dynamics 365 Commerce.
Practise MB-920 questions linked to Describe Dynamics 365 Project Operations.
Practise MB-920 questions linked to Describe shared Dynamics 365 ERP features.
Practise MB-920 questions linked to MB-920 fundamentals.
Practise MB-920 questions linked to MB-920 scenario.
Practise MB-920 questions linked to MB-920 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Describe Dynamics 365 Finance — This question tests Describe Dynamics 365 Finance — Read the scenario before looking for a memorised answer..
The correct answer is: Weighted average — Option A is correct. Weighted average costing calculates an average cost after each receipt, smoothing out price fluctuations. Option B is wrong because FIFO assigns the oldest cost to sales. Option C is wrong because standard costing uses predetermined costs. Option D is wrong because moving average recalculates after each transaction, not over a period.
Identify which MB-920 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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 →
Last reviewed: Jun 21, 2026
This MB-920 practice question is part of Courseiva's free Microsoft 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 MB-920 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.