Quick Answer
The answer is AWS CloudTrail. CloudTrail is the correct choice because it records every API call made to IAM, capturing actions like CreatePolicy, PutRolePolicy, and AttachUserPolicy as event logs, which are essential for tracking IAM policy changes using CloudTrail for auditing. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this question tests your understanding of which service provides a complete, immutable record of management events; a common trap is confusing CloudTrail with AWS Config, which tracks resource configuration changes rather than API-level activity. Remember that CloudTrail is your audit trail for who did what and when, while Config tells you what the resource looks like now. A helpful memory tip: think of CloudTrail as the “who, what, when” recorder for every IAM policy modification.
This SOA-C02 practice question tests your understanding of monitoring, logging, and remediation. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 needs to track changes to IAM policies in the AWS account for auditing purposes. Which service should be used?
IAM Access Analyzer
Why wrong: Access Analyzer analyzes resource policies for public access.
AWS Config
Why wrong: Config tracks resource configurations, not API calls.
AWS CloudTrail
CloudTrail logs all API calls for auditing.
Amazon CloudWatch
Why wrong: CloudWatch is for monitoring, not auditing API calls.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
AWS CloudTrail
AWS CloudTrail is the correct service because it records API calls made to IAM, including changes to IAM policies (e.g., CreatePolicy, PutRolePolicy, AttachUserPolicy). These logs are stored in a CloudTrail trail and can be delivered to Amazon S3 for long-term auditing. CloudTrail is specifically designed for auditing API activity, making it the appropriate choice for tracking policy modifications.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
IAM Access Analyzer
Why it's wrong here
Access Analyzer analyzes resource policies for public access.
AWS Config
Why it's wrong here
Config tracks resource configurations, not API calls.
AWS CloudTrail
Why this is correct
CloudTrail logs all API calls for auditing.
Related concept
Read the scenario before looking for a memorised answer.
Amazon CloudWatch
Why it's wrong here
CloudWatch is for monitoring, not auditing API calls.
Common exam traps
The trap here is that candidates often confuse AWS Config (which tracks resource configuration changes) with CloudTrail (which tracks API calls), leading them to choose Config for auditing IAM policy changes when Config only records the resulting state, not the action that caused it.
Detailed technical explanation
CloudTrail captures IAM policy changes as management events, which are enabled by default and stored for 90 days in the CloudTrail event history. For long-term retention, you must create a trail that delivers logs to an S3 bucket, optionally with SSE-KMS encryption. A real-world scenario is an organization needing to prove compliance with SOC 2 by showing a log of every IAM policy modification, including the principal who made the change, the source IP, and the request parameters.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
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FAQ
Monitoring, Logging, and Remediation — This question tests Monitoring, Logging, and Remediation — Read the scenario before looking for a memorised answer..
The correct answer is: AWS CloudTrail — AWS CloudTrail is the correct service because it records API calls made to IAM, including changes to IAM policies (e.g., CreatePolicy, PutRolePolicy, AttachUserPolicy). These logs are stored in a CloudTrail trail and can be delivered to Amazon S3 for long-term auditing. CloudTrail is specifically designed for auditing API activity, making it the appropriate choice for tracking policy modifications.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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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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