- A
Deploy the endpoint in a VPC and use VPC Endpoints.
Why wrong: VPC provides network isolation but not encryption in transit by default.
- B
Use AWS Key Management Service (KMS) to encrypt the data in transit.
Why wrong: KMS is for encryption at rest.
- C
The endpoint is automatically served over HTTPS; no additional configuration is needed.
SageMaker endpoints use HTTPS by default.
- D
Attach an AWS Certificate Manager (ACM) certificate to the endpoint.
Why wrong: SageMaker manages its own certificates; you cannot attach ACM certificates directly.
Question 85 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 uses an Amazon SageMaker endpoint for real-time inference. The security team requires that all traffic between the endpoint and the client application be encrypted in transit. Which configuration ensures this?
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
✓
The endpoint is automatically served over HTTPS; no additional configuration is needed.
Amazon SageMaker endpoints are automatically served over HTTPS, which encrypts all data in transit between the client application and the endpoint. This is a default behavior of SageMaker real-time inference endpoints, so no additional configuration is required to meet the encryption-in-transit requirement.
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.
- ✗
Deploy the endpoint in a VPC and use VPC Endpoints.
Why it's wrong here
VPC provides network isolation but not encryption in transit by default.
- ✗
Use AWS Key Management Service (KMS) to encrypt the data in transit.
Why it's wrong here
KMS is for encryption at rest.
- ✓
The endpoint is automatically served over HTTPS; no additional configuration is needed.
Why this is correct
SageMaker endpoints use HTTPS by default.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Attach an AWS Certificate Manager (ACM) certificate to the endpoint.
Why it's wrong here
SageMaker manages its own certificates; you cannot attach ACM certificates directly.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often overthink security requirements and assume additional configuration (like VPC endpoints or ACM certificates) is needed, when in fact SageMaker endpoints are inherently encrypted in transit via HTTPS by default.
Detailed technical explanation
How to think about this question
SageMaker endpoints use an Application Load Balancer (ALB) or Network Load Balancer (NLB) behind the scenes, which terminates TLS and serves the endpoint over HTTPS using a default AWS-managed certificate. The client must use the HTTPS URL (e.g., https://runtime.sagemaker.<region>.amazonaws.com/endpoints/<endpoint-name>/invocations) to ensure encryption; HTTP requests are not supported for real-time inference. In a real-world scenario, if a client mistakenly uses HTTP, the request will fail, reinforcing that HTTPS is the only option.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
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ML Solution Monitoring, Maintenance and Security — study guide chapter
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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: The endpoint is automatically served over HTTPS; no additional configuration is needed. — Amazon SageMaker endpoints are automatically served over HTTPS, which encrypts all data in transit between the client application and the endpoint. This is a default behavior of SageMaker real-time inference endpoints, so no additional configuration is required to meet the encryption-in-transit requirement.
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
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