The correct approach is to use AWS Config rules to detect security group modifications and trigger an SNS notification. This solution is ideal because AWS Config continuously evaluates your resource configurations against desired rules—such as whether a security group has been changed—and can automatically invoke an SNS topic to alert the security team, all without custom scripts or manual log analysis. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this scenario tests your understanding of event-driven monitoring and configuration compliance, often appearing as a distractor against options like CloudTrail log parsing or Lambda-based polling. A common trap is assuming you need to write a custom Lambda function, but AWS Config’s managed rule for security group changes handles the detection natively. Memory tip: think “Config catches the change, SNS rings the alarm.”
SOA-C02 Monitoring, Logging, and Remediation Practice Question
This SOA-C02 practice question tests your understanding of monitoring, logging, and remediation. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
An organization has a production AWS environment with multiple VPCs and hundreds of EC2 instances. The security team wants to be alerted when any security group is modified. Which approach should a SysOps administrator use to meet this requirement with minimal overhead?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use AWS Config rules to detect security group changes and trigger an SNS notification.
Option B is correct because AWS Config rules can continuously evaluate security group configurations against desired settings and trigger an SNS notification when a change is detected. This approach provides automated, event-driven monitoring with minimal operational overhead, as it does not require custom scripts or manual log analysis.
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.
✗
Enable CloudTrail and create a CloudWatch alarm for each security group modification event.
Why it's wrong here
This is possible but complex to manage at scale due to the number of events.
✓
Use AWS Config rules to detect security group changes and trigger an SNS notification.
Why this is correct
AWS Config can monitor security group resources and trigger notifications on changes.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable VPC Flow Logs and analyze them with Amazon Athena for security group changes.
Why it's wrong here
VPC Flow Logs do not capture security group modifications; they capture network traffic metadata.
✗
Deploy Amazon GuardDuty to monitor for security group modifications.
Why it's wrong here
GuardDuty detects threats like malicious traffic, not resource configuration changes.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing CloudTrail event monitoring with AWS Config's configuration change detection, leading candidates to choose CloudTrail-based alarms despite the higher overhead and lack of direct compliance evaluation.
Detailed technical explanation
How to think about this question
AWS Config uses managed rules like 'security-group-rule-does-not-rely-on-0-0-0-0/0' or custom Lambda functions to evaluate security group state changes. When a security group is modified via the EC2 API, AWS Config records the configuration item and evaluates it against the rule, triggering an SNS topic if the rule is non-compliant. This is more efficient than CloudTrail-based alarms because it directly monitors configuration state rather than raw API calls, reducing false positives from non-impactful 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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
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: Use AWS Config rules to detect security group changes and trigger an SNS notification. — Option B is correct because AWS Config rules can continuously evaluate security group configurations against desired settings and trigger an SNS notification when a change is detected. This approach provides automated, event-driven monitoring with minimal operational overhead, as it does not require custom scripts or manual log analysis.
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.