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MLA-C01 Practice Question: Secure access to a SageMaker real-time endpoint
A company wants to secure access to a SageMaker real-time endpoint. Which TWO actions should be taken? (Select two.)
⚠ Common exam trap
Watch out — candidates often confuse sts:AssumeRole with direct invocation permissions, or think that AWS WAF can be applied to any AWS service endpoint, when in fact SageMaker endpoints are not supported by WAF.
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
✓
Attach a resource-based policy to the endpoint.
SageMaker real-time endpoints support resource-based policies, which allow you to control access at the endpoint level by specifying which IAM principals can invoke the endpoint. This is similar to how you attach a policy to an S3 bucket or an SQS queue, providing granular access control without requiring the caller to assume a role.
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 an IAM role with sts:AssumeRole for invocation.
Why it's wrong here
Invocation typically uses IAM permissions on the user/role directly, not sts:AssumeRole.
- ✓
Attach a resource-based policy to the endpoint.
Why this is correct
Resource-based policies on SageMaker endpoints allow you to specify which IAM principals can invoke the endpoint.
- ✗
Enable AWS WAF on the endpoint.
Why it's wrong here
AWS WAF is not supported directly on SageMaker endpoints.
- ✗
Use AWS CloudTrail to log all invocations.
Why it's wrong here
CloudTrail provides auditing, not access control.
- ✓
Configure the endpoint to be private within a VPC and use VPC endpoints.
Why this is correct
Placing the endpoint in a private subnet and using VPC endpoints reduces exposure to the public internet.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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About these practice questions
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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.