MLA-C01 Practice Question: ML Solution Monitoring, Maintenance, and Security
An organization needs to ensure that all data used for inference on a SageMaker endpoint is encrypted at rest. The endpoint uses a SageMaker-provided container. Which configuration should be applied?
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 a KMS key in the endpoint configuration
SageMaker endpoints use AWS KMS for encryption at rest. By specifying a KMS key in the endpoint configuration, the data in the attached ML storage volume is encrypted. Inter-container traffic encryption is for encryption in transit.
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 a custom container with built-in encryption
Why it's wrong here
Even with a custom container, SageMaker does not automatically encrypt the volume unless a KMS key is specified.
- ✓
Specify a KMS key in the endpoint configuration
Why this is correct
A KMS key encrypts the ML storage volume attached to the endpoint, ensuring data at rest is encrypted.
- ✗
Enable network isolation mode
Why it's wrong here
Network isolation prevents internet access but does not encrypt data at rest.
- ✗
Enable inter-container traffic encryption
Why it's wrong here
This encrypts data in transit between containers, not at rest.
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.