The answer is SSE-S3, SSE-KMS, and SSE-C, as SageMaker supports all three Amazon S3 server-side encryption options for data at rest. This is because SageMaker integrates directly with S3’s encryption mechanisms, automatically decrypting data encrypted with SSE-S3 (S3-managed keys), SSE-KMS (AWS KMS keys), or SSE-C (customer-provided keys) during training jobs, provided the necessary IAM permissions are in place. On the AWS Certified Machine Learning Engineer Associate MLA-C01 exam, this question tests your understanding of SageMaker’s seamless handling of S3 encryption, often appearing as a “choose three” trap where candidates mistakenly exclude SSE-C or include client-side encryption. A common pitfall is confusing unsupported options like client-side encryption or CloudFront—SageMaker cannot decrypt data encrypted client-side before upload. Remember the mnemonic “Three S’s for S3” to recall SSE-S3, SSE-KMS, and SSE-C as the supported trio.
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. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 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)
Options A, B, and C are correct because SageMaker supports all three Amazon S3 server-side encryption options. Option D is not supported for automatic decryption by SageMaker. Option E is for content delivery, not storage encryption.
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.
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
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 MLA-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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) — Options A, B, and C are correct because SageMaker supports all three Amazon S3 server-side encryption options. Option D is not supported for automatic decryption by SageMaker. Option E is for content delivery, not storage encryption.
What should I do if I get this MLA-C01 question wrong?
Identify which MLA-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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.
Question Discussion
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