- A
Write a script that polls the CloudFormation API and sends notifications
Why wrong: Polling is inefficient and not a managed solution.
- B
Use AWS Config to monitor stack resources
Why wrong: AWS Config evaluates resource configurations, not stack events.
- C
Create an EventBridge rule that matches CloudFormation stack events
EventBridge can filter on stack events like ROLLBACK_IN_PROGRESS.
- D
Enable CloudTrail and create a metric filter for stack update failures
Why wrong: CloudTrail records CreateStack API calls, but the failure event is not an API call.
Question 106 of 1,546
SOA-C02 Monitoring, Logging, and Remediation Practice Question
This SOA-C02 practice question tests your understanding of monitoring, logging, and remediation. 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. A SysOps admin wants to receive a notification when a stack update fails. Which approach is the most efficient?
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
✓
Create an EventBridge rule that matches CloudFormation stack events
Option C is correct because Amazon EventBridge can directly capture CloudFormation stack events (e.g., CREATE_FAILED, UPDATE_FAILED) in real time and trigger a notification via SNS or Lambda. This approach is serverless, requires no polling, and is the most efficient method for reacting to stack update failures as they occur.
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.
- ✗
Write a script that polls the CloudFormation API and sends notifications
Why it's wrong here
Polling is inefficient and not a managed solution.
- ✗
Use AWS Config to monitor stack resources
Why it's wrong here
AWS Config evaluates resource configurations, not stack events.
- ✓
Create an EventBridge rule that matches CloudFormation stack events
Why this is correct
EventBridge can filter on stack events like ROLLBACK_IN_PROGRESS.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable CloudTrail and create a metric filter for stack update failures
Why it's wrong here
CloudTrail records CreateStack API calls, but the failure event is not an API call.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often overcomplicate the solution by choosing CloudTrail or polling, missing the fact that EventBridge provides native, real-time event capture for CloudFormation stack status changes without additional overhead.
Detailed technical explanation
How to think about this question
EventBridge uses an event pattern matching on the 'source' (aws.cloudformation) and 'detail-type' (CloudFormation Stack Status Change) to filter for specific statuses like UPDATE_FAILED. Under the hood, CloudFormation emits these events to the default event bus automatically, and you can route them to SNS, Lambda, or SQS without any custom code. This pattern is also useful for automating rollback notifications or triggering remediation workflows in multi-stack deployments.
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.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
Got this wrong? Here's your next step.
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Monitoring, Logging, and Remediation — study guide chapter
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FAQ
Questions learners often ask
What does this SOA-C02 question test?
Monitoring, Logging, and Remediation — This question tests Monitoring, Logging, and Remediation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create an EventBridge rule that matches CloudFormation stack events — Option C is correct because Amazon EventBridge can directly capture CloudFormation stack events (e.g., CREATE_FAILED, UPDATE_FAILED) in real time and trigger a notification via SNS or Lambda. This approach is serverless, requires no polling, and is the most efficient method for reacting to stack update failures as they occur.
What should I do if I get this SOA-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 →
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Last reviewed: Jun 24, 2026
This SOA-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 SOA-C02 exam.
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