MLA-C01 Practice Question: ML Solution Monitoring, Maintenance, and Security
A security team requires that all data used by a SageMaker training job be encrypted at rest using a customer-managed KMS key. The data is stored in an S3 bucket that is already encrypted with SSE-KMS. What additional configuration is needed on the SageMaker training job?
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
✓
Specify the KMS key as the VolumeKmsKeyId and OutputKmsKeyId in the training job configuration
When the input data is encrypted with a customer-managed KMS key, you must specify the same KMS key in the VolumeKmsKeyId parameter of the training job to encrypt the ML storage volume, and also set the OutputKmsKeyId for output encryption.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Specify the KMS key as the VolumeKmsKeyId and OutputKmsKeyId in the training job configuration
Why this is correct
This ensures that the training volume and output are encrypted with the same key.
- ✗
Enable inter-container traffic encryption
Why it's wrong here
This encrypts traffic between containers, not data at rest.
- ✗
No additional configuration is required because S3 SSE-KMS automatically applies
Why it's wrong here
S3 encryption does not automatically encrypt the SageMaker training volume or output.
- ✗
Use network isolation mode
Why it's wrong here
Network isolation restricts internet access, not encryption.
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 |
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This MLA-C01 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 MLA-C01 exam.