The answer is to store the access keys in AWS Secrets Manager and use automatic rotation. This is the most efficient method because Secrets Manager natively supports rotating IAM user access keys on a defined schedule, such as every 90 days, without requiring custom code or manual intervention. For the AWS Certified SysOps Administrator Associate SOA-C02 exam, this scenario tests your understanding of automated credential lifecycle management—a key operational excellence concept. A common trap is assuming IAM itself can rotate keys automatically, but IAM only allows you to create, list, or delete keys; it has no built-in rotation scheduler. Another pitfall is over-engineering a solution with Lambda, which works but requires custom code and maintenance, making Secrets Manager the more efficient, managed service. Memory tip: think of Secrets Manager as a "key valet" that automatically swaps your keys on a timer, while IAM is just the "key maker" that hands them out.
SOA-C02 Security and Compliance Practice Question
This SOA-C02 practice question tests your understanding of security and compliance. 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 company has a legacy application that requires access to an S3 bucket using an IAM user's access keys. The security team wants to rotate the access keys every 90 days automatically. What is the MOST efficient way 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
✓
Store the access keys in AWS Secrets Manager and use automatic rotation.
Option D is correct because AWS Secrets Manager can automatically rotate IAM user access keys on a schedule. Option A is wrong because manual rotation is not automatic. Option B is wrong because Lambda can be used but requires custom code. Option C is wrong because IAM doesn't natively rotate keys automatically.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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 AWS Lambda with a scheduled CloudWatch Events rule to rotate the keys.
Why it's wrong here
Possible but requires custom code.
✗
Create a script that runs on an EC2 instance using cron to rotate the keys.
Why it's wrong here
Not automatic and requires maintenance.
✓
Store the access keys in AWS Secrets Manager and use automatic rotation.
Why this is correct
Secrets Manager supports automatic rotation of IAM keys.
Related concept
Static NAT maps one inside address to one outside address.
✗
Enable IAM access key rotation in the IAM console.
Why it's wrong here
IAM does not support automatic rotation.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SOA-C02 NAT questions on configuration and troubleshooting.
Security and Compliance — This question tests Security and Compliance — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Store the access keys in AWS Secrets Manager and use automatic rotation. — Option D is correct because AWS Secrets Manager can automatically rotate IAM user access keys on a schedule. Option A is wrong because manual rotation is not automatic. Option B is wrong because Lambda can be used but requires custom code. Option C is wrong because IAM doesn't natively rotate keys automatically.
What should I do if I get this SOA-C02 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SOA-C02 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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