- A
Use CloudWatch Logs Insights to query CloudFormation logs and set up a scheduled query to send results to SNS.
Why wrong: Not real-time and requires cron jobs.
- B
Configure the CloudFormation stack to send events to an SNS topic by specifying the topic ARN in the stack's notification options.
CloudFormation can directly publish stack events to an SNS topic.
- C
Enable AWS CloudTrail to log CloudFormation API calls and create a CloudWatch metric filter that detects failure messages, then trigger an alarm to SNS.
Why wrong: This adds latency and complexity.
- D
Create an Amazon EventBridge rule that matches CloudFormation API calls for CreateStack and UpdateStack with a status of CREATE_FAILED or UPDATE_FAILED, and set the target to the SNS topic.
Why wrong: This would work, but it requires creating a custom event pattern and is more complex.
DOP-C02 Monitoring and Logging Practice Question
This DOP-C02 practice question tests your understanding of monitoring and logging. 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 infrastructure. The DevOps team wants to monitor the CloudFormation stack events to detect when stack creation or updates fail, and automatically send notifications to a Slack channel. The team has set up an Amazon SNS topic that sends messages to a Slack webhook via a Lambda function. Which solution should the team implement to trigger the SNS topic when a CloudFormation stack fails?
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
Configure the CloudFormation stack to send events to an SNS topic by specifying the topic ARN in the stack's notification options.
Option D is correct because CloudFormation publishes stack events to an SNS topic when specified as a notification ARN in the stack. The team can create an SNS topic and subscribe the Slack webhook Lambda function to it, then specify that topic as the notification ARN when creating or updating the stack. This will send events directly to SNS. Option A is wrong because CloudFormation does not send events to EventBridge by default; you would need to create a rule. Option B is wrong because CloudTrail logs API calls, but you would need additional setup. Option C is wrong because CloudWatch Logs Insights is for querying logs, not real-time events.
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 CloudWatch Logs Insights to query CloudFormation logs and set up a scheduled query to send results to SNS.
Why it's wrong here
Not real-time and requires cron jobs.
- ✓
Configure the CloudFormation stack to send events to an SNS topic by specifying the topic ARN in the stack's notification options.
Why this is correct
CloudFormation can directly publish stack events to an SNS topic.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable AWS CloudTrail to log CloudFormation API calls and create a CloudWatch metric filter that detects failure messages, then trigger an alarm to SNS.
Why it's wrong here
This adds latency and complexity.
- ✗
Create an Amazon EventBridge rule that matches CloudFormation API calls for CreateStack and UpdateStack with a status of CREATE_FAILED or UPDATE_FAILED, and set the target to the SNS topic.
Why it's wrong here
This would work, but it requires creating a custom event pattern and is more complex.
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 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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FAQ
Questions learners often ask
What does this DOP-C02 question test?
Monitoring and Logging — This question tests Monitoring and Logging — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure the CloudFormation stack to send events to an SNS topic by specifying the topic ARN in the stack's notification options. — Option D is correct because CloudFormation publishes stack events to an SNS topic when specified as a notification ARN in the stack. The team can create an SNS topic and subscribe the Slack webhook Lambda function to it, then specify that topic as the notification ARN when creating or updating the stack. This will send events directly to SNS. Option A is wrong because CloudFormation does not send events to EventBridge by default; you would need to create a rule. Option B is wrong because CloudTrail logs API calls, but you would need additional setup. Option C is wrong because CloudWatch Logs Insights is for querying logs, not real-time events.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
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