The answer is AWS CloudTrail and Amazon EventBridge, which together enable you to monitor and log security group changes for compliance. CloudTrail records every API call made to modify security group rules, capturing who made the change, when, and from where, while EventBridge can ingest those CloudTrail events in real time to trigger automated responses, such as sending notifications or invoking a Lambda function for further logging. On the AWS Certified Advanced Networking Specialty ANS-C01 exam, this pairing tests your understanding that CloudTrail is the service for auditing API-level configuration changes, not for monitoring traffic or resource state—common traps include confusing VPC Flow Logs (which capture network traffic, not rule changes) or AWS Config (which records resource state but does not log the API calls themselves). A useful memory tip: think of CloudTrail as the “who did what” log and EventBridge as the “now what” trigger—together they turn raw API logs into actionable monitoring.
ANS-C01 Network Security, Compliance and Governance Practice Question
This ANS-C01 practice question tests your understanding of network security, compliance and governance. 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.
A company wants to monitor and log all changes to security group rules in their AWS account for compliance purposes. Which TWO 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 EventBridge
Option A (AWS CloudTrail) logs API calls, including changes to security group rules. Option D (Amazon EventBridge) can capture CloudTrail events and trigger notifications. Together, they provide monitoring and logging. Option B is wrong because VPC Flow Logs capture traffic, not configuration changes. Option C is wrong because AWS Config records resource state but does not log API calls. Option E is wrong because AWS Trusted Advisor provides best-practice checks, not change logging.
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 Trusted Advisor
Why it's wrong here
Trusted Advisor provides recommendations, not change logging.
✗
VPC Flow Logs
Why it's wrong here
Flow Logs capture network traffic, not configuration changes.
✓
Amazon EventBridge
Why this is correct
EventBridge can match CloudTrail events and trigger actions for compliance monitoring.
Related concept
Read the scenario before looking for a memorised answer.
✗
AWS Config
Why it's wrong here
Config records resource configuration but does not log API calls.
✓
AWS CloudTrail
Why this is correct
CloudTrail logs API calls such as AuthorizeSecurityGroupIngress and RevokeSecurityGroupEgress.
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 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 ANS-C01 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.
Network Security, Compliance and Governance — This question tests Network Security, Compliance and Governance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon EventBridge — Option A (AWS CloudTrail) logs API calls, including changes to security group rules. Option D (Amazon EventBridge) can capture CloudTrail events and trigger notifications. Together, they provide monitoring and logging. Option B is wrong because VPC Flow Logs capture traffic, not configuration changes. Option C is wrong because AWS Config records resource state but does not log API calls. Option E is wrong because AWS Trusted Advisor provides best-practice checks, not change logging.
What should I do if I get this ANS-C01 question wrong?
Identify which ANS-C01 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 ANS-C01 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 ANS-C01 exam.
Question Discussion
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