- A
Set the S3 bucket as public and restrict access by source IP
Why wrong: Making the bucket public violates security best practices and does not avoid internet traversal for VPC-only mode.
- B
Configure a NAT Gateway in the public subnet and route Studio traffic through it
Why wrong: A NAT Gateway allows outbound internet access but is not needed for private S3 access; a VPC endpoint is more secure and cost-effective.
- C
Use a SageMaker execution role with a policy that allows s3:GetObject from any network
Why wrong: IAM permissions alone do not control network paths; without a VPC endpoint, traffic still goes over the internet.
- D
Create an S3 Gateway Endpoint in the VPC and attach a bucket policy that allows access from the VPC
An S3 Gateway Endpoint allows private access to S3 without internet. The bucket policy must restrict access to the VPC endpoint.
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 data science team uses SageMaker Studio with a VPC-only mode. They need to access a private S3 bucket in the same VPC to read training data. The SageMaker Studio domain is configured with VPC-only mode. Which configuration ensures the Studio notebook can access the S3 bucket without traversing the public internet?
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
Create an S3 Gateway Endpoint in the VPC and attach a bucket policy that allows access from the VPC
Option D is correct because an S3 Gateway Endpoint provides a private, VPC-only route to S3 without traversing the public internet. By attaching a bucket policy that restricts access to the VPC endpoint, the SageMaker Studio domain (configured with VPC-only mode) can securely read training data from the private S3 bucket using AWS PrivateLink.
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.
- ✗
Set the S3 bucket as public and restrict access by source IP
Why it's wrong here
Making the bucket public violates security best practices and does not avoid internet traversal for VPC-only mode.
- ✗
Configure a NAT Gateway in the public subnet and route Studio traffic through it
- ✗
Use a SageMaker execution role with a policy that allows s3:GetObject from any network
Why it's wrong here
IAM permissions alone do not control network paths; without a VPC endpoint, traffic still goes over the internet.
- ✓
Create an S3 Gateway Endpoint in the VPC and attach a bucket policy that allows access from the VPC
Why this is correct
An S3 Gateway Endpoint allows private access to S3 without internet. The bucket policy must restrict access to the VPC endpoint.
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 often confuse S3 Gateway Endpoints (which are free and route traffic privately within AWS) with VPC Interface Endpoints (which use PrivateLink and incur costs), or mistakenly think IAM policies alone control network path, ignoring the need for a VPC endpoint to avoid public internet traversal.
Detailed technical explanation
How to think about this question
An S3 Gateway Endpoint uses a prefix list in the VPC route table to direct S3 traffic through AWS’s internal network, bypassing the internet entirely. The bucket policy must include a condition like `aws:SourceVpce` or `aws:SourceVpc` to enforce that only requests from the VPC endpoint are allowed, ensuring no public internet access. In real-world scenarios, this is critical for compliance with data residency or security policies that mandate no data leaves the AWS network.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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 |
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.
- →
ML Solution Monitoring, Maintenance, and Security — study guide chapter
Learn the concepts, then practise the questions
- →
ML Solution Monitoring, Maintenance, and Security practice questions
Targeted practice on this topic area only
- →
All MLA-C01 questions
1,000 questions across all exam domains
- →
AWS Certified Machine Learning Engineer Associate MLA-C01 study guide
Full concept coverage aligned to exam objectives
- →
MLA-C01 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related MLA-C01 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
ML Model Development practice questions
Practise MLA-C01 questions linked to ML Model Development.
Data Preparation for Machine Learning practice questions
Practise MLA-C01 questions linked to Data Preparation for Machine Learning.
Deployment and Orchestration of ML Workflows practice questions
Practise MLA-C01 questions linked to Deployment and Orchestration of ML Workflows.
ML Solution Monitoring, Maintenance, and Security practice questions
Practise MLA-C01 questions linked to ML Solution Monitoring, Maintenance, and Security.
ML Solution Monitoring, Maintenance and Security practice questions
Practise MLA-C01 questions linked to ML Solution Monitoring, Maintenance and Security.
MLA-C01 fundamentals practice questions
Practise MLA-C01 questions linked to MLA-C01 fundamentals.
MLA-C01 scenario practice questions
Practise MLA-C01 questions linked to MLA-C01 scenario.
MLA-C01 troubleshooting practice questions
Practise MLA-C01 questions linked to MLA-C01 troubleshooting.
Practice this exam
Start a free MLA-C01 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
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: Create an S3 Gateway Endpoint in the VPC and attach a bucket policy that allows access from the VPC — Option D is correct because an S3 Gateway Endpoint provides a private, VPC-only route to S3 without traversing the public internet. By attaching a bucket policy that restricts access to the VPC endpoint, the SageMaker Studio domain (configured with VPC-only mode) can securely read training data from the private S3 bucket using AWS PrivateLink.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.