MLA-C01 Practice Question: ML Solution Monitoring, Maintenance, and Security
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?
⚠ Common exam trap
Many exam-takers 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.
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
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.
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.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.