This DVA-C02 practice question tests your understanding of deployment. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 company uses AWS CloudFormation to manage infrastructure. The development team wants to make a change to a stack that involves replacing a critical resource. The team wants to minimize downtime and ensure that the replacement is successful before removing the old resource. Which CloudFormation feature should the team use?
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 the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use a CreationPolicy on the resource to ensure it is fully created before the old one is deleted.
Option D is correct because CloudFormation stack updates with replacement use the 'create before destroy' policy when the resource has a 'DeletionPolicy' of 'Retain' or when using a custom resource with a 'CreationPolicy'. However, the best way is to use a 'CreationPolicy' on the resource to ensure it is fully created before the old is destroyed. Option A is wrong because change sets are for preview, not ordering. Option B is wrong because it is not a CloudFormation feature. Option C is wrong because nested stacks do not control replacement order.
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 CodeDeploy blue/green deployment.
Why it's wrong here
CodeDeploy is for application deployments, not infrastructure.
✗
Use a change set to review the changes before executing.
Why it's wrong here
Change sets only preview, they don't control replacement order.
✓
Use a CreationPolicy on the resource to ensure it is fully created before the old one is deleted.
Why this is correct
CreationPolicy with 'create before destroy' ensures the new resource is up before deleting the old.
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.
✗
Use nested stacks to isolate the resource.
Why it's wrong here
Nested stacks don't affect replacement order.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which DVA-C02 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.
Deployment — This question tests Deployment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use a CreationPolicy on the resource to ensure it is fully created before the old one is deleted. — Option D is correct because CloudFormation stack updates with replacement use the 'create before destroy' policy when the resource has a 'DeletionPolicy' of 'Retain' or when using a custom resource with a 'CreationPolicy'. However, the best way is to use a 'CreationPolicy' on the resource to ensure it is fully created before the old is destroyed. Option A is wrong because change sets are for preview, not ordering. Option B is wrong because it is not a CloudFormation feature. Option C is wrong because nested stacks do not control replacement order.
What should I do if I get this DVA-C02 question wrong?
Identify which DVA-C02 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.
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