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 DevOps team is troubleshooting a CloudFormation stack creation failure. The stack uses a service role with the trust policy shown in the exhibit. The error message states: 'Insufficient permissions to create the resource'. Which action should the team take to resolve this issue?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Attach IAM policies to the service role that grant permissions to create the resources.
The error 'Insufficient permissions to create the resource' indicates that the service role used by CloudFormation lacks the necessary IAM permissions to perform the resource creation actions. The trust policy shown in the exhibit allows CloudFormation to assume the role, but the role itself must have IAM policies attached that grant the required permissions (e.g., ec2:*, s3:*). Option D is correct because attaching the appropriate IAM policies to the service role resolves the permission issue.
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.
✗
Modify the CloudFormation template to use the user's IAM role instead of a service role.
Why it's wrong here
Using the user's role may grant excessive permissions and is not best practice.
✗
Create a new stack policy that allows the required actions.
Why it's wrong here
Stack policies are for protecting resources, not granting permissions.
✗
Add the user's IAM role to the trust policy.
Why it's wrong here
The trust policy is for CloudFormation, not the user.
✓
Attach IAM policies to the service role that grant permissions to create the resources.
Why this is correct
The service role needs permission to create resources on behalf of CloudFormation.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse a stack policy (which controls update protection) with IAM permissions, or they think modifying the trust policy (who can assume the role) fixes a missing permissions issue, when in reality the role's attached policies must grant the actual resource creation actions.
Detailed technical explanation
How to think about this question
CloudFormation service roles use a trust policy that allows the `cloudformation.amazonaws.com` service principal to assume the role via STS `AssumeRole`. The role must have an attached IAM policy (e.g., a managed policy like `AdministratorAccess` or a custom policy with specific resource-level permissions) to perform the actions defined in the template. A common subtlety is that the service role's permissions must cover all resources in the stack, including nested stacks, and if the role is missing permissions for a specific API call (e.g., `ec2:RunInstances`), CloudFormation fails with the generic 'Insufficient permissions' error.
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.
TExam Day Tips
→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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Visual reference
Quick reference
AWS S3 Storage Class Comparison
Storage Class
Min Duration
Retrieval
Use Case
S3 Standard
None
Immediate
Frequently accessed data
S3 Standard-IA
30 days
Immediate
Infrequent access, rapid retrieval
S3 One Zone-IA
30 days
Immediate
Non-critical infrequent data
S3 Intelligent-Tiering
None
Immediate–hours
Unknown or changing access patterns
S3 Glacier Instant
90 days
Milliseconds
Archive with instant retrieval
S3 Glacier Flexible
90 days
Minutes–hours
Archive, flexible retrieval
S3 Glacier Deep Archive
180 days
Hours
Long-term compliance archive
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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: Attach IAM policies to the service role that grant permissions to create the resources. — The error 'Insufficient permissions to create the resource' indicates that the service role used by CloudFormation lacks the necessary IAM permissions to perform the resource creation actions. The trust policy shown in the exhibit allows CloudFormation to assume the role, but the role itself must have IAM policies attached that grant the required permissions (e.g., ec2:*, s3:*). Option D is correct because attaching the appropriate IAM policies to the service role resolves the permission issue.
What should I do if I get this DOP-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
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 →
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.
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.
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.