← SOA-C02·Amazon Web Services

Question 22 of 1,546

Security and Compliance →mediumMultiple ChoiceObjective-mapped

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's security team requires that all Amazon S3 buckets are encrypted at rest using server-side encryption with Amazon S3 managed keys (SSE-S3). A SysOps administrator needs to automatically detect any S3 bucket that does not have encryption enabled and automatically apply SSE-S3 encryption. The solution should leverage AWS managed services and minimize custom code. Which combination of AWS services should be used?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.

Question 1mediummultiple choice

Read the full NAT/PAT explanation →

A
Use AWS Trusted Advisor to identify unencrypted buckets and then manually enable encryption.
Why wrong: Trusted Advisor flags unencrypted buckets but does not provide automatic remediation, requiring manual intervention.
B
Use AWS Config managed rule 's3-bucket-server-side-encryption-enabled' with an automatic remediation action using AWS Systems Manager Automation.
AWS Config evaluates compliance and can trigger a Systems Manager Automation document that enables default encryption on the bucket automatically.
C
Use AWS CloudTrail to detect PutBucket operations and trigger a Lambda function that enables encryption.
Why wrong: This requires custom Lambda code and deals with API calls rather than current bucket configuration. It would not detect existing unencrypted buckets.
D
Create an IAM bucket policy that denies any PutObject request that does not include x-amz-server-side-encryption header.
Why wrong: This enforces encryption on uploads but does not detect or remediate existing buckets that lack default encryption.

Full breakdown with real-world context →

Answer choices

Why each option matters

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 managed rule 's3-bucket-server-side-encryption-enabled' with an automatic remediation action using AWS Systems Manager Automation.

Option B is correct because AWS Config's managed rule 's3-bucket-server-side-encryption-enabled' continuously evaluates S3 buckets for encryption compliance, and its automatic remediation action can invoke an AWS Systems Manager Automation document to enable SSE-S3 encryption on noncompliant buckets without custom code. This fully meets the requirement to automatically detect and remediate unencrypted buckets using AWS managed services.

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.

✗
Use AWS Trusted Advisor to identify unencrypted buckets and then manually enable encryption.
Why it's wrong here
Trusted Advisor flags unencrypted buckets but does not provide automatic remediation, requiring manual intervention.
✓
Use AWS Config managed rule 's3-bucket-server-side-encryption-enabled' with an automatic remediation action using AWS Systems Manager Automation.
Why this is correct
AWS Config evaluates compliance and can trigger a Systems Manager Automation document that enables default encryption on the bucket automatically.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use AWS CloudTrail to detect PutBucket operations and trigger a Lambda function that enables encryption.
Why it's wrong here
This requires custom Lambda code and deals with API calls rather than current bucket configuration. It would not detect existing unencrypted buckets.
✗
Create an IAM bucket policy that denies any PutObject request that does not include x-amz-server-side-encryption header.
Why it's wrong here
This enforces encryption on uploads but does not detect or remediate existing buckets that lack default encryption.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often confuse enforcing encryption on object uploads (via bucket policies or CloudTrail/Lambda) with ensuring the bucket's default encryption setting is enabled, which is what AWS Config's managed rule and remediation specifically address.

Detailed technical explanation

How to think about this question

AWS Config's managed rule 's3-bucket-server-side-encryption-enabled' checks the bucket's default encryption configuration by evaluating the 'x-amz-server-side-encryption' header in the bucket's encryption settings. When combined with an automatic remediation action, AWS Config triggers an SSM Automation document (e.g., 'AWS-EnableS3BucketEncryption') that uses the PutBucketEncryption API to apply SSE-S3, ensuring the bucket's default encryption is set. This approach is fully serverless and requires no custom code, aligning with the 'minimize custom code' requirement.

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 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.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this SOA-C02 question test?

Security and Compliance — This question tests Security and Compliance — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Use AWS Config managed rule 's3-bucket-server-side-encryption-enabled' with an automatic remediation action using AWS Systems Manager Automation. — Option B is correct because AWS Config's managed rule 's3-bucket-server-side-encryption-enabled' continuously evaluates S3 buckets for encryption compliance, and its automatic remediation action can invoke an AWS Systems Manager Automation document to enable SSE-S3 encryption on noncompliant buckets without custom code. This fully meets the requirement to automatically detect and remediate unencrypted buckets using AWS managed services.

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.

Are there clue words in this question I should notice?

Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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