- A
Use AWS DMS to continuously replicate a filtered subset of data to a test cluster.
Why wrong: DMS adds complexity and cost.
- B
Take a manual snapshot of the production cluster, restore it to a new cluster, and delete 90% of the data.
Why wrong: Snapshot restore takes time and storage cost for full data.
- C
Use Aurora cloning to create a clone of the production cluster. Use database triggers or scripts to delete 90% of the data after cloning.
Cloning is fast, cost-effective, and does not impact production.
- D
Create a read replica of the production cluster, promote it to a standalone cluster, and delete 90% of the data.
Why wrong: Read replica creation impacts production I/O.
Question 495 of 1,730
DBS-C01 Management and Operations Practice Question
This DBS-C01 practice question tests your understanding of management and operations. 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 multinational e-commerce company runs an Amazon Aurora MySQL database for its product catalog. The database is 2 TB and has a high write volume. The company needs to create a test environment that contains a subset (10%) of the production data for developers to use. The test environment must be refreshed daily with the latest production data. The operations team wants to minimize cost and ensure that the test environment does not impact production performance. Which solution should they implement?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"minimum / minimize"Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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
✓
Use Aurora cloning to create a clone of the production cluster. Use database triggers or scripts to delete 90% of the data after cloning.
Using Aurora cloning creates a storage-level copy that shares the same underlying storage as the source cluster, minimizing cost and avoiding any performance impact on production because cloning does not involve copying data. After cloning, you can delete 90% of the data using scripts or triggers to retain only 10% for testing. Option A (DMS continuous replication) would incur additional cost and ongoing replication overhead. Option B (snapshot and restore) would create a full 2 TB copy and then you would have to delete data, incurring storage costs for the full copy. Option D (read replica) would impact production replication and would also require deleting data after promotion.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use AWS DMS to continuously replicate a filtered subset of data to a test cluster.
Why it's wrong here
DMS adds complexity and cost.
- ✗
Take a manual snapshot of the production cluster, restore it to a new cluster, and delete 90% of the data.
Why it's wrong here
Snapshot restore takes time and storage cost for full data.
- ✓
Use Aurora cloning to create a clone of the production cluster. Use database triggers or scripts to delete 90% of the data after cloning.
Why this is correct
Cloning is fast, cost-effective, and does not impact production.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a read replica of the production cluster, promote it to a standalone cluster, and delete 90% of the data.
Why it's wrong here
Read replica creation impacts production I/O.
Common exam traps
Common exam trap: answer the scenario, not the keyword
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
How to think about this question
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.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
Identify which DBS-C01 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.
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Management and Operations — study guide chapter
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FAQ
Questions learners often ask
What does this DBS-C01 question test?
Management and Operations — This question tests Management and Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Aurora cloning to create a clone of the production cluster. Use database triggers or scripts to delete 90% of the data after cloning. — Using Aurora cloning creates a storage-level copy that shares the same underlying storage as the source cluster, minimizing cost and avoiding any performance impact on production because cloning does not involve copying data. After cloning, you can delete 90% of the data using scripts or triggers to retain only 10% for testing. Option A (DMS continuous replication) would incur additional cost and ongoing replication overhead. Option B (snapshot and restore) would create a full 2 TB copy and then you would have to delete data, incurring storage costs for the full copy. Option D (read replica) would impact production replication and would also require deleting data after promotion.
What should I do if I get this DBS-C01 question wrong?
Identify which DBS-C01 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.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 20, 2026
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