- A
The target accounts have reached the limit of 200 stacks per region.
Why wrong: The error message specifically indicates an IAM permissions issue, not a limit.
- B
The target accounts do not have the necessary trust policy to allow the StackSet IAM role to assume the execution role.
StackSets require a trust relationship between the StackSet IAM role and the execution role in target accounts.
- C
AWS Organizations has a service control policy (SCP) that denies the required action, but the StackSet IAM role has full admin permissions.
Why wrong: SCPs can override IAM permissions, but the error is about trust, not SCP.
- D
The StackSet name contains invalid characters that are not allowed in some accounts.
Why wrong: StackSet naming rules are consistent across accounts.
DOP-C02 Configuration Management and IaC Practice Question
This DOP-C02 practice question tests your understanding of configuration management and iac. 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 company uses AWS CloudFormation to deploy a web application across multiple AWS accounts using StackSets. The DevOps team notices that stack instance updates are failing in some accounts with the error: 'Insufficient IAM permissions to perform the action'. The team has already verified that the StackSet IAM role has the necessary permissions. What is the most likely cause of this issue?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
The target accounts do not have the necessary trust policy to allow the StackSet IAM role to assume the execution role.
Option B is correct because StackSets require that the target accounts have a trust policy allowing the StackSet IAM role to assume a role in those accounts. Option A is wrong because the error is about permissions, not limit. Option C is wrong because the stack set name is not relevant. Option D is wrong because SCPs can block permissions even if the IAM role has them.
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 target accounts have reached the limit of 200 stacks per region.
Why it's wrong here
The error message specifically indicates an IAM permissions issue, not a limit.
- ✓
The target accounts do not have the necessary trust policy to allow the StackSet IAM role to assume the execution role.
Why this is correct
StackSets require a trust relationship between the StackSet IAM role and the execution role in target accounts.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Organizations has a service control policy (SCP) that denies the required action, but the StackSet IAM role has full admin permissions.
Why it's wrong here
SCPs can override IAM permissions, but the error is about trust, not SCP.
- ✗
The StackSet name contains invalid characters that are not allowed in some accounts.
Why it's wrong here
StackSet naming rules are consistent across accounts.
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 DOP-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.
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Configuration Management and IaC — study guide chapter
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FAQ
Questions learners often ask
What does this DOP-C02 question test?
Configuration Management and IaC — This question tests Configuration Management and IaC — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The target accounts do not have the necessary trust policy to allow the StackSet IAM role to assume the execution role. — Option B is correct because StackSets require that the target accounts have a trust policy allowing the StackSet IAM role to assume a role in those accounts. Option A is wrong because the error is about permissions, not limit. Option C is wrong because the stack set name is not relevant. Option D is wrong because SCPs can block permissions even if the IAM role has them.
What should I do if I get this DOP-C02 question wrong?
Identify which DOP-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: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
This DOP-C02 practice question is part of Courseiva's free Amazon Web Services 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 DOP-C02 exam.
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