The correct answer is that the 'Resource creation cancelled' error indicates another resource in the stack failed, causing a rollback. This occurs because AWS CloudFormation processes resource creation in a dependency-aware order; when any single resource fails to provision—due to a misconfigured property, a service limit, or an API call failure—CloudFormation automatically cancels all remaining resource creations and initiates a stack rollback to avoid leaving the environment in a partial or inconsistent state. On the AWS Certified Developer Associate DVA-C02 exam, this question tests your understanding of CloudFormation’s failure handling behavior, often appearing as a distractor where candidates mistakenly blame IAM permissions or template syntax. A common trap is confusing this error with an access denied or validation issue, but remember: the error message itself explicitly says "cancelled," not "denied" or "invalid." For a quick memory tip, think "one fails, all cancel"—if you see 'Resource creation cancelled', immediately look for the root cause in a different resource that failed first.
DVA-C02 Troubleshooting and Optimization Practice Question
This DVA-C02 practice question tests your understanding of troubleshooting and optimization. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 developer is troubleshooting an AWS CloudFormation stack creation failure. The stack creation failed with the error: 'Resource creation cancelled'. What does this error typically indicate?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Another resource in the stack failed, causing a rollback.
Option B is correct because 'Resource creation cancelled' means a different resource in the stack failed, causing rollback. Option A is wrong because insufficient IAM permissions would give an access denied error. Option C is wrong because the error is not about template validation. Option D is wrong because the error is not about resource limit.
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.
✗
The IAM user does not have permission to create the resource.
Why it's wrong here
Would cause an access denied error, not cancellation.
✓
Another resource in the stack failed, causing a rollback.
Why this is correct
CloudFormation cancels creation of remaining resources if one fails.
Related concept
Read the scenario before looking for a memorised answer.
✗
The template has a syntax error.
Why it's wrong here
Syntax errors are reported as template validation errors.
✗
The resource type is not supported by CloudFormation.
Why it's wrong here
Would cause an unsupported resource error.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
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.
Troubleshooting and Optimization — This question tests Troubleshooting and Optimization — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Another resource in the stack failed, causing a rollback. — Option B is correct because 'Resource creation cancelled' means a different resource in the stack failed, causing rollback. Option A is wrong because insufficient IAM permissions would give an access denied error. Option C is wrong because the error is not about template validation. Option D is wrong because the error is not about resource limit.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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