- A
SSE-C (customer-provided keys)
SageMaker supports SSE-C, but the user must provide the key during training.
- B
Client-side encryption
Why wrong: SageMaker cannot automatically decrypt client-side encrypted data.
- C
SSE-KMS (KMS-managed keys)
SageMaker supports SSE-KMS with appropriate KMS key permissions.
- D
Amazon CloudFront encryption
Why wrong: CloudFront is for content delivery, not storage encryption.
- E
SSE-S3 (S3-managed keys)
SageMaker can read data encrypted with SSE-S3.
Question 105 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. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 stores training data in Amazon S3 and uses Amazon SageMaker for model training. They need to ensure data is encrypted at rest. Which THREE encryption options are supported by SageMaker for data stored in S3? (Choose THREE.)
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
✓
SSE-C (customer-provided keys)
Amazon SageMaker supports SSE-C (server-side encryption with customer-provided keys) for data stored in S3. When using SSE-C, you manage the encryption keys and provide them to SageMaker during training job configuration. SageMaker uses these keys to decrypt the data on your behalf, ensuring data is encrypted at rest in S3 while you retain control of the encryption keys.
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.
- ✓
SSE-C (customer-provided keys)
Why this is correct
SageMaker supports SSE-C, but the user must provide the key during training.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Client-side encryption
Why it's wrong here
SageMaker cannot automatically decrypt client-side encrypted data.
- ✓
SSE-KMS (KMS-managed keys)
Why this is correct
SageMaker supports SSE-KMS with appropriate KMS key permissions.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Amazon CloudFront encryption
Why it's wrong here
CloudFront is for content delivery, not storage encryption.
- ✓
SSE-S3 (S3-managed keys)
Why this is correct
SageMaker can read data encrypted with SSE-S3.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse client-side encryption (which is not a server-side S3 encryption option) with server-side encryption options, or they mistakenly think CloudFront encryption applies to S3 data at rest, when it only applies to data in transit between CloudFront and viewers.
Detailed technical explanation
How to think about this question
SSE-C uses AES-256 encryption with a customer-provided key that must be supplied via the x-amz-server-side-encryption-customer-key header in S3 API calls. SageMaker handles the key management by using the AWS KMS Encrypt and Decrypt APIs under the hood when you specify an SSE-KMS key, while SSE-S3 uses S3's native AES-256 encryption with keys managed entirely by AWS. In practice, SSE-KMS is often preferred for compliance because it provides audit trails via AWS CloudTrail and allows key rotation policies.
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
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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: SSE-C (customer-provided keys) — Amazon SageMaker supports SSE-C (server-side encryption with customer-provided keys) for data stored in S3. When using SSE-C, you manage the encryption keys and provide them to SageMaker during training job configuration. SageMaker uses these keys to decrypt the data on your behalf, ensuring data is encrypted at rest in S3 while you retain control of the encryption keys.
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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Last reviewed: Jul 4, 2026
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.
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