- A
Add kms:GenerateDataKey and kms:Decrypt permissions to the IAM role.
These permissions are necessary to write to a KMS-encrypted bucket.
- B
Add s3:PutObjectAcl permission to the IAM role.
Why wrong: PutObjectAcl is not required for writing objects; KMS permissions are needed.
- C
Enable S3 default encryption on the bucket.
Why wrong: The bucket already uses KMS encryption; the role needs KMS permissions to write.
- D
Modify the container to handle encryption internally.
Why wrong: The container does not need to handle encryption; the role should have KMS permissions.
Question 761 of 1,000
MLA-C01 Practice Question: ML Solution Monitoring, Maintenance and Security
This MLA-C01 practice question tests your understanding of ml solution monitoring, maintenance and security. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 financial services company deploys a credit risk model using an Amazon SageMaker endpoint with data capture enabled. The model uses a custom container. The compliance team requires that all inference requests and responses are logged to an S3 bucket with server-side encryption using AWS KMS. The IAM role for the endpoint has the following policy. What must be added to meet the compliance requirement?
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
✓
Add kms:GenerateDataKey and kms:Decrypt permissions to the IAM role.
The correct answer is A because the IAM role for the SageMaker endpoint needs permissions to generate a data key (kms:GenerateDataKey) for encrypting captured data and to decrypt (kms:Decrypt) the KMS key when writing to the S3 bucket. Without these, the endpoint cannot use the customer-managed KMS key for server-side encryption, even if the bucket policy allows it.
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.
- ✓
Add kms:GenerateDataKey and kms:Decrypt permissions to the IAM role.
Why this is correct
These permissions are necessary to write to a KMS-encrypted bucket.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Add s3:PutObjectAcl permission to the IAM role.
Why it's wrong here
PutObjectAcl is not required for writing objects; KMS permissions are needed.
- ✗
Enable S3 default encryption on the bucket.
Why it's wrong here
The bucket already uses KMS encryption; the role needs KMS permissions to write.
- ✗
Modify the container to handle encryption internally.
Why it's wrong here
The container does not need to handle encryption; the role should have KMS permissions.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume enabling S3 default encryption (Option C) is sufficient, but SageMaker data capture requires explicit KMS permissions in the endpoint's IAM role to use the customer-managed key.
Detailed technical explanation
How to think about this question
When data capture is enabled on a SageMaker endpoint, the service writes inference request/response payloads to the specified S3 bucket. If the bucket uses SSE-KMS, SageMaker calls KMS to generate a data key (kms:GenerateDataKey) for each object and then uses the data key to encrypt the payload before upload. The IAM role must also have kms:Decrypt to allow SageMaker to verify the key or handle re-encryption scenarios. Without these permissions, the endpoint fails with an access denied error during data capture.
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.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this MLA-C01 question test?
ML Solution Monitoring, Maintenance and Security — This question tests ML Solution Monitoring, Maintenance and Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Add kms:GenerateDataKey and kms:Decrypt permissions to the IAM role. — The correct answer is A because the IAM role for the SageMaker endpoint needs permissions to generate a data key (kms:GenerateDataKey) for encrypting captured data and to decrypt (kms:Decrypt) the KMS key when writing to the S3 bucket. Without these, the endpoint cannot use the customer-managed KMS key for server-side encryption, even if the bucket policy allows it.
What should I do if I get this MLA-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 24, 2026
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