Quick Answer
The answer is AWS CloudTrail, as it is the dedicated service for recording API activity across your AWS infrastructure and can be configured to store logs in an S3 bucket with lifecycle policies that retain data for 7 years. CloudTrail captures both management and data plane API calls, making it essential for auditing and compliance, and it supports long-term retention by integrating with S3 object locking or lifecycle rules to prevent deletion or modification. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this question tests your understanding of compliance-driven log storage versus real-time monitoring; a common trap is confusing CloudTrail with CloudWatch Logs, which is designed for operational metrics and short-term retention, not long-term archival. Remember the memory tip: “CloudTrail tracks the trail of API calls for compliance, while CloudWatch watches current metrics.”
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.
A company needs to retain API call logs for 7 years for compliance. Which AWS service should be used to store these logs?
AWS CloudTrail
CloudTrail records API activity and can deliver logs to S3 for long-term retention.
AWS Config
Why wrong: AWS Config records configuration changes.
Amazon CloudWatch Logs
Why wrong: CloudWatch Logs is for application logs, not primarily for API logs.
Amazon VPC Flow Logs
Why wrong: VPC Flow Logs capture network traffic, not 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 activity across your AWS infrastructure and can be configured to store logs in an S3 bucket with lifecycle policies that retain data for 7 years. CloudTrail is specifically designed for auditing and compliance, capturing management and data plane API calls, and supports long-term retention via S3 object locking or lifecycle rules.
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.
AWS CloudTrail
Why this is correct
CloudTrail records API activity and can deliver logs to S3 for long-term retention.
Related concept
Read the scenario before looking for a memorised answer.
AWS Config
Why it's wrong here
AWS Config records configuration changes.
Amazon CloudWatch Logs
Why it's wrong here
CloudWatch Logs is for application logs, not primarily for API logs.
Amazon VPC Flow Logs
Why it's wrong here
VPC Flow Logs capture network traffic, not API calls.
Common exam traps
The trap here is that candidates confuse CloudTrail (API auditing) with CloudWatch Logs (operational logs) or Config (configuration history), but only CloudTrail captures the specific API call logs required for compliance retention.
Detailed technical explanation
CloudTrail delivers logs to an S3 bucket in JSON or gzip format, and you can use S3 Lifecycle policies to transition objects to Glacier or Deep Archive for cost-effective 7-year retention. Under the hood, CloudTrail uses a trail configuration that logs all API calls via the AWS Management Console, SDKs, CLI, and IAM user activity, with optional data events for S3 and Lambda. A real-world scenario is a financial institution required to retain all IAM and S3 API calls for 7 years under PCI DSS, where CloudTrail with S3 Object Lock prevents log deletion or modification.
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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Monitoring, Logging, and Remediation — study guide chapter
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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 activity across your AWS infrastructure and can be configured to store logs in an S3 bucket with lifecycle policies that retain data for 7 years. CloudTrail is specifically designed for auditing and compliance, capturing management and data plane API calls, and supports long-term retention via S3 object locking or lifecycle rules.
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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