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 SysOps administrator wants to be alerted when an EC2 instance's status check fails. The instance is part of an Auto Scaling group. What is the BEST approach?
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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a CloudWatch alarm on the 'StatusCheckFailed' metric.
Option B is correct because the 'StatusCheckFailed' metric is automatically published by EC2 to CloudWatch, and a CloudWatch alarm on this metric can directly trigger an SNS notification or other action when the status check fails. This is the simplest and most reliable method for alerting on instance health, regardless of whether the instance is in an Auto Scaling group.
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 Amazon EventBridge to detect status check failures.
Why it's wrong here
EventBridge does not have a default event for status checks; CloudWatch alarm is simpler.
✓
Create a CloudWatch alarm on the 'StatusCheckFailed' metric.
Why this is correct
CloudWatch has built-in metrics for status checks.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable CloudTrail to monitor EC2 instance status changes.
Why it's wrong here
CloudTrail logs API calls, not instance status.
✗
Configure an Auto Scaling lifecycle hook to send a notification.
Why it's wrong here
Lifecycle hooks are for instance launch/terminate, not status checks.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse CloudTrail (API logging) with CloudWatch (metrics and alarms), or assume EventBridge is the best choice for all event-driven monitoring, when in fact CloudWatch alarms on the native 'StatusCheckFailed' metric are the simplest and most direct solution for status check alerts.
Detailed technical explanation
How to think about this question
EC2 status checks are performed every minute by the hypervisor and the AWS system; the 'StatusCheckFailed' metric aggregates both system status checks (loss of network connectivity or power) and instance status checks (OS-level issues). A CloudWatch alarm on this metric can be set with a period of 1 minute and a threshold of 1 or more, ensuring near-real-time alerting. In an Auto Scaling group, this alarm can also be used to trigger a scale-in or replace the unhealthy instance via a CloudWatch alarm action that calls Auto Scaling, though the question focuses on alerting, not remediation.
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: Create a CloudWatch alarm on the 'StatusCheckFailed' metric. — Option B is correct because the 'StatusCheckFailed' metric is automatically published by EC2 to CloudWatch, and a CloudWatch alarm on this metric can directly trigger an SNS notification or other action when the status check fails. This is the simplest and most reliable method for alerting on instance health, regardless of whether the instance is in an Auto Scaling group.
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.
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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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
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