The answer is to grant the SageMaker execution role access to both KMS keys. This is required because the execution role acts as the intermediary between the S3 bucket containing the model artifacts and the SageMaker endpoint; it must have `kms:Decrypt` permission on the key that encrypted the artifacts at rest, and also `kms:Encrypt` and `kms:Decrypt` on the separate key used for inference data encryption. On the AWS Certified Machine Learning Engineer Associate MLA-C01 exam, this scenario tests your understanding of how SageMaker decouples storage encryption from inference encryption, and a common trap is assuming both must use the same key. Instead, the role simply needs explicit permissions for each key’s operation. Remember the memory tip: "Two keys, one role—decrypt the model, encrypt the goal."
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. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
An ML team trained a model using SageMaker and stored the model artifacts in S3 with server-side encryption using AWS KMS (SSE-KMS). They need to deploy the model to a SageMaker endpoint that uses a different KMS key for inference data encryption. What must they do to ensure the endpoint can decrypt the model artifacts?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Grant the SageMaker execution role access to both KMS keys.
The SageMaker execution role must have kms:Decrypt permission on the KMS key used for model artifacts, and also kms:Encrypt and kms:Decrypt on the key for inference data. Providing the same key is not required.
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.
✗
Provide the same KMS key for both model artifacts and inference data.
Why it's wrong here
Using the same key is an option but not required; different keys can be used with proper permissions.
✗
Use a customer-managed key (CMK) with the same key material.
Why it's wrong here
Key material is irrelevant; permissions are key.
✓
Grant the SageMaker execution role access to both KMS keys.
Why this is correct
The role needs decrypt on the artifact key and encrypt/decrypt on the inference key.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure the endpoint to use SSE-S3 instead of SSE-KMS.
Why it's wrong here
Changing encryption type would require re-uploading artifacts.
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: Grant the SageMaker execution role access to both KMS keys. — The SageMaker execution role must have kms:Decrypt permission on the KMS key used for model artifacts, and also kms:Encrypt and kms:Decrypt on the key for inference data. Providing the same key is not required.
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.
About these practice questions
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 →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A machine learning engineer wants to encrypt model artifacts stored in Amazon S3. The artifacts are created and used by SageMaker training jobs and endpoints. What is the simplest way to ensure encryption at rest?
easy
✓ A.Create an S3 bucket with default encryption using SSE-S3 and allow SageMaker access.
B.Use SageMaker's default encryption with an AWS managed key.
C.Enable S3 bucket versioning and MFA delete.
D.Use a custom KMS key and grant SageMaker permission to use it.
Why A: Option A is correct because SSE-S3 is the simplest encryption method and works seamlessly with SageMaker. Option B is not a thing; SageMaker does not have default encryption for artifacts. Option C is possible but not simplest. Option D is for versioning, not encryption.
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.