The correct answer is to enable automatic key rotation on the existing KMS key. This approach works because AWS KMS automatic rotation creates new cryptographic material annually while retaining the original key material, allowing the SageMaker endpoint to continue decrypting data encrypted under the old key without any interruption. On the AWS Certified Machine Learning Engineer Associate MLA-C01 exam, this question tests your understanding that rotating KMS keys for SageMaker endpoints without downtime is achieved through the managed service itself, not by manual key replacement or endpoint reconfiguration. A common trap is assuming you must create a new key and update the endpoint, which would cause downtime; instead, remember that automatic rotation is transparent to the endpoint. Memory tip: “Auto-rotate, no update needed” — the key ID stays the same, so the endpoint never breaks.
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.
A company deploys a SageMaker model using AWS KMS for encryption at rest. They have a compliance requirement to rotate the KMS key every year without causing downtime for the inference endpoint. Which approach should they take?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable automatic key rotation on the existing KMS key
Option B is correct because AWS KMS supports automatic key rotation, which rotates the key material yearly without requiring any changes to the endpoint. Options A, C, and D would cause downtime or are unnecessary.
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.
Create a new KMS key and update the endpoint configuration
Why it's wrong here
Updating the endpoint configuration may cause a brief outage during update.
✗
Manually rotate the key by recreating the endpoint
Why it's wrong here
Recreating the endpoint causes downtime.
✓
Enable automatic key rotation on the existing KMS key
Why this is correct
Automatic rotation rotates the key material without changing the key ID, causing no downtime.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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: Enable automatic key rotation on the existing KMS key — Option B is correct because AWS KMS supports automatic key rotation, which rotates the key material yearly without requiring any changes to the endpoint. Options A, C, and D would cause downtime or are unnecessary.
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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Question Discussion
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