- A
Use a private VPC and enable data encryption at rest using KMS
Why wrong: Encryption at rest does not encrypt inter-container traffic nor restrict access to the VPC.
- B
Enable inter-container traffic encryption and configure the endpoint with VPC-only mode
VPC-only mode makes the endpoint only accessible from the VPC, and inter-container traffic encryption encrypts data between containers.
- C
Enable network isolation mode and inter-container traffic encryption
Why wrong: Network isolation prevents internet access but does not restrict endpoint access to the VPC; also, it does not encrypt inter-container traffic by itself.
- D
Deploy the endpoint in a private subnet and use a VPC endpoint for SageMaker API
Why wrong: A private subnet and VPC endpoint restrict API calls but do not encrypt inter-container traffic.
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. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 financial services company must deploy a SageMaker endpoint that processes sensitive customer data. They require that all traffic between the endpoint and the model containers be encrypted, and that the endpoint cannot be accessed from outside a specific VPC. Which combination of settings should they use?
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
Enable inter-container traffic encryption and configure the endpoint with VPC-only mode
Option B is correct because inter-container traffic encryption ensures that data between the SageMaker endpoint and the model containers is encrypted in transit, typically using TLS. Configuring the endpoint with VPC-only mode restricts all inference traffic to the specified VPC, preventing any access from outside that VPC. This combination directly addresses the requirements for encrypted inter-container traffic and VPC-restricted access.
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.
- ✗
Use a private VPC and enable data encryption at rest using KMS
Why it's wrong here
Encryption at rest does not encrypt inter-container traffic nor restrict access to the VPC.
- ✓
Enable inter-container traffic encryption and configure the endpoint with VPC-only mode
Why this is correct
VPC-only mode makes the endpoint only accessible from the VPC, and inter-container traffic encryption encrypts data between containers.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable network isolation mode and inter-container traffic encryption
Why it's wrong here
Network isolation prevents internet access but does not restrict endpoint access to the VPC; also, it does not encrypt inter-container traffic by itself.
- ✗
Deploy the endpoint in a private subnet and use a VPC endpoint for SageMaker API
Why it's wrong here
A private subnet and VPC endpoint restrict API calls but do not encrypt inter-container traffic.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing network isolation mode with inter-container traffic encryption and VPC-only mode, as candidates often assume network isolation alone secures all traffic and access, but it does not encrypt inter-container communication or restrict inbound endpoint access to a VPC.
Detailed technical explanation
How to think about this question
Inter-container traffic encryption in SageMaker uses TLS 1.2 to encrypt data between the endpoint's load balancer and the model containers, which is critical for compliance with regulations like PCI DSS or HIPAA. VPC-only mode, when enabled, attaches a VPC configuration to the endpoint and rejects any inference requests that do not originate from within that VPC, effectively creating a private endpoint without needing a separate VPC interface endpoint. This is distinct from network isolation, which only prevents containers from making outbound internet calls.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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: Enable inter-container traffic encryption and configure the endpoint with VPC-only mode — Option B is correct because inter-container traffic encryption ensures that data between the SageMaker endpoint and the model containers is encrypted in transit, typically using TLS. Configuring the endpoint with VPC-only mode restricts all inference traffic to the specified VPC, preventing any access from outside that VPC. This combination directly addresses the requirements for encrypted inter-container traffic and VPC-restricted access.
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.
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 →
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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