SOA-C02 Monitoring, Logging, and Remediation Practice Question
This SOA-C02 practice question tests your understanding of monitoring, logging, and remediation. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 SysOps administrator wants to be alerted when an EC2 instance is terminated unexpectedly. Which CloudWatch event should be used to trigger a notification?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
An Amazon EventBridge rule that matches EC2 Instance State-change Notification events.
Option D is correct because Amazon EventBridge can capture EC2 Instance State-change Notification events, which are emitted whenever an EC2 instance transitions between states (e.g., running, stopped, terminated). By creating a rule that matches the 'terminated' state, the administrator can trigger an SNS notification or Lambda function to alert on unexpected termination, providing a real-time, event-driven response.
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.
✗
A CloudWatch alarm on the CPUUtilization metric dropping to zero.
Why it's wrong here
CPU dropping to zero is not a reliable indicator of termination.
✗
A CloudTrail trail that logs TerminateInstances API calls.
Why it's wrong here
CloudTrail logs API calls, but it's not a real-time event trigger by default.
✗
A CloudWatch alarm on the StatusCheckFailed metric.
Why it's wrong here
StatusCheckFailed indicates impaired instance, not termination.
✓
An Amazon EventBridge rule that matches EC2 Instance State-change Notification events.
Why this is correct
EventBridge can capture EC2 state changes and trigger notifications.
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 CloudWatch alarms on metrics (like CPUUtilization or StatusCheckFailed) with event-driven notifications, overlooking that EventBridge rules directly capture state-change events for immediate, precise alerting.
Detailed technical explanation
How to think about this question
EC2 Instance State-change Notification events are emitted via Amazon EventBridge (formerly CloudWatch Events) and include the instance ID, state, and a reason code (e.g., 'User initiated' or 'Server.InternalError'). Under the hood, these events are published to the default event bus and can be matched using event patterns like `{"source":["aws.ec2"],"detail-type":["EC2 Instance State-change Notification"],"detail":{"state":["terminated"]}}`. This approach is more reliable than polling metrics because it captures the exact moment of state transition, even for instances terminated by Auto Scaling, Spot interruptions, or AWS Health events.
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.
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: An Amazon EventBridge rule that matches EC2 Instance State-change Notification events. — Option D is correct because Amazon EventBridge can capture EC2 Instance State-change Notification events, which are emitted whenever an EC2 instance transitions between states (e.g., running, stopped, terminated). By creating a rule that matches the 'terminated' state, the administrator can trigger an SNS notification or Lambda function to alert on unexpected termination, providing a real-time, event-driven response.
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 →
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 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.
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.