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.
Network Topology
A DevOps engineer runs the command shown in the exhibit. The output shows the stack status as ROLLBACK_COMPLETE. Which statement best describes the current state of the stack?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Network Topology
A
The stack was created successfully and is in a steady state.
Why wrong: ROLLBACK_COMPLETE indicates failure, not success.
B
The stack update failed and has been rolled back to the previous state.
Why wrong: The event is for a stack creation, not an update.
C
The stack is currently in the process of rolling back after a failed creation.
Why wrong: ROLLBACK_IN_PROGRESS would indicate ongoing rollback.
D
The stack creation failed and has been rolled back. No resources remain.
ROLLBACK_COMPLETE means all resources were cleaned up after failure.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The stack creation failed and has been rolled back. No resources remain.
The ROLLBACK_COMPLETE status in AWS CloudFormation indicates that a stack creation or update operation failed and the stack has been fully rolled back. When a stack creation fails and rolls back, CloudFormation deletes all resources that were created during the failed creation attempt, leaving no resources remaining. This is the correct interpretation for a stack that was being created (not updated) and ended in ROLLBACK_COMPLETE.
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 stack was created successfully and is in a steady state.
Why it's wrong here
ROLLBACK_COMPLETE indicates failure, not success.
✗
The stack update failed and has been rolled back to the previous state.
Why it's wrong here
The event is for a stack creation, not an update.
✗
The stack is currently in the process of rolling back after a failed creation.
Why it's wrong here
ROLLBACK_IN_PROGRESS would indicate ongoing rollback.
✓
The stack creation failed and has been rolled back. No resources remain.
Why this is correct
ROLLBACK_COMPLETE means all resources were cleaned up after failure.
Clue confirmation
The clue word "best" in the question point toward this answer.
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 ROLLBACK_COMPLETE with a successful rollback that preserves resources, but for a creation failure, all resources are deleted, whereas for an update failure, the previous resources are restored.
Detailed technical explanation
How to think about this question
CloudFormation uses a state machine to track stack operations; when a creation fails, it transitions from CREATE_FAILED to ROLLBACK_IN_PROGRESS and finally to ROLLBACK_COMPLETE, during which all resources created in the failed attempt are deleted. This is distinct from an update rollback, where the stack reverts to the previous template and parameter values, and resources from the previous state remain. A common real-world scenario is a misconfigured IAM role or insufficient permissions causing resource creation to fail, leading to a complete teardown of the partial stack.
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 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 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: The stack creation failed and has been rolled back. No resources remain. — The ROLLBACK_COMPLETE status in AWS CloudFormation indicates that a stack creation or update operation failed and the stack has been fully rolled back. When a stack creation fails and rolls back, CloudFormation deletes all resources that were created during the failed creation attempt, leaving no resources remaining. This is the correct interpretation for a stack that was being created (not updated) and ended in ROLLBACK_COMPLETE.
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.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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