- A
Deploy the endpoint in a public subnet and restrict security group ingress to the VPC CIDR
Why wrong: Even with security group restrictions, the endpoint is still publicly accessible via the internet; network isolation is required to block public traffic.
- B
Enable VPC-only mode for the endpoint and disable public access
Why wrong: VPC-only mode is a SageMaker Studio setting; endpoints use network isolation to restrict traffic to VPC.
- C
Use a privateLink endpoint and enable data encryption at rest
Why wrong: PrivateLink is for accessing endpoints from on-premises or other VPCs; encryption at rest does not cover in-transit between containers.
- D
Configure the endpoint with network isolation mode and enable inter-container traffic encryption
Network isolation blocks public internet access; inter-container traffic encryption secures data in transit between containers.
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 needs to deploy a SageMaker endpoint that only accepts inference requests from within a specific VPC and denies all public traffic. The endpoint must also encrypt data in transit between containers. How should the endpoint be configured?
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
Configure the endpoint with network isolation mode and enable inter-container traffic encryption
Option D is correct because enabling network isolation mode ensures the SageMaker endpoint is deployed within a VPC and cannot be accessed from the public internet, satisfying the requirement to deny all public traffic. Additionally, enabling inter-container traffic encryption (using TLS) encrypts data in transit between the containers hosting the model, meeting the encryption requirement. This configuration is specific to SageMaker endpoints and directly addresses both constraints.
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 public subnet and restrict security group ingress to the VPC CIDR
Why it's wrong here
Even with security group restrictions, the endpoint is still publicly accessible via the internet; network isolation is required to block public traffic.
- ✗
Enable VPC-only mode for the endpoint and disable public access
Why it's wrong here
VPC-only mode is a SageMaker Studio setting; endpoints use network isolation to restrict traffic to VPC.
- ✗
Use a privateLink endpoint and enable data encryption at rest
Why it's wrong here
PrivateLink is for accessing endpoints from on-premises or other VPCs; encryption at rest does not cover in-transit between containers.
- ✓
Configure the endpoint with network isolation mode and enable inter-container traffic encryption
Why this is correct
Network isolation blocks public internet access; inter-container traffic encryption secures data in transit between containers.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse 'network isolation mode' with simply deploying in a VPC, or they mistakenly think that a PrivateLink endpoint or security group rules alone can block all public traffic, when in fact network isolation is the only way to ensure the endpoint has no public endpoint URL.
Detailed technical explanation
How to think about this question
Network isolation mode in SageMaker deploys the endpoint within a VPC without a public endpoint, meaning the endpoint is only reachable from within that VPC via a private IP address. Inter-container traffic encryption uses TLS 1.2 to encrypt data as it moves between model containers, which is critical for compliance with regulations like PCI DSS or HIPAA when processing sensitive financial data. Under the hood, SageMaker uses an internal load balancer and container networking that can be configured to enforce encryption using the `EnableInterContainerTrafficEncryption` parameter in the `CreateEndpointConfig` API.
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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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: Configure the endpoint with network isolation mode and enable inter-container traffic encryption — Option D is correct because enabling network isolation mode ensures the SageMaker endpoint is deployed within a VPC and cannot be accessed from the public internet, satisfying the requirement to deny all public traffic. Additionally, enabling inter-container traffic encryption (using TLS) encrypts data in transit between the containers hosting the model, meeting the encryption requirement. This configuration is specific to SageMaker endpoints and directly addresses both constraints.
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
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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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