The answer is Amazon Simple Notification Service (SNS) and Amazon EventBridge (formerly CloudWatch Events). These two services work together to deliver real-time CloudFormation stack failure notifications because EventBridge can monitor CloudFormation stack events—such as CREATE_FAILED or UPDATE_FAILED—and route them directly to an SNS topic, which then pushes alerts via email, SMS, or other endpoints. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this pairing tests your understanding of event-driven notification patterns versus logging or auditing services; a common trap is choosing CloudTrail (which records API calls but doesn’t trigger real-time alerts) or CloudWatch Logs (which stores logs but lacks direct SNS integration). Remember the mnemonic “E-SNS” for EventBridge plus SNS equals instant failure alerts.
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 is using AWS CloudFormation to deploy a microservices architecture. The operations team wants to receive real-time notifications when any stack operation fails. Which TWO AWS services can be used together to achieve this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Amazon CloudWatch Events (Amazon EventBridge)
Options A and E are correct. CloudWatch Events (now Amazon EventBridge) can capture CloudFormation stack events and trigger an SNS topic to send notifications. Option B is wrong because Lambda alone doesn't provide notifications. Option C is wrong because CloudTrail is for API auditing, not real-time notification. Option D is wrong because CloudWatch Logs doesn't trigger SNS directly for stack 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.
✗
AWS Lambda
Why it's wrong here
Lambda can process events but needs a trigger; alone it doesn't provide notifications.
✗
Amazon CloudWatch Logs
Why it's wrong here
CloudWatch Logs stores logs but doesn't trigger SNS directly for CloudFormation events.
✗
AWS CloudTrail
Why it's wrong here
CloudTrail records API calls but doesn't provide real-time notifications.
✓
Amazon CloudWatch Events (Amazon EventBridge)
Why this is correct
EventBridge can capture CloudFormation events and trigger actions.
Related concept
Read the scenario before looking for a memorised answer.
✓
Amazon Simple Notification Service (SNS)
Why this is correct
SNS can send notifications when triggered by EventBridge rules.
Related concept
Read the scenario before looking for a memorised answer.
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.
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: Amazon CloudWatch Events (Amazon EventBridge) — Options A and E are correct. CloudWatch Events (now Amazon EventBridge) can capture CloudFormation stack events and trigger an SNS topic to send notifications. Option B is wrong because Lambda alone doesn't provide notifications. Option C is wrong because CloudTrail is for API auditing, not real-time notification. Option D is wrong because CloudWatch Logs doesn't trigger SNS directly for stack 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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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
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