- A
Configure the training job to run in VPC-only mode
VPC-only blocks internet access.
- B
Use a public subnet for the training job
Why wrong: Public subnet has internet access via internet gateway.
- C
Disable network isolation for the training job
Why wrong: Network isolation prevents internet but VPC-only is the correct setting; disabling isolation would allow internet.
- D
Attach a NAT Gateway to the VPC to allow outbound internet
Why wrong: Defeats the no-internet requirement.
- E
Create an S3 VPC interface endpoint to access S3 privately
Allows downloading packages from S3 without internet.
Question 719 of 1,000
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 team wants to ensure that their SageMaker training jobs cannot access the internet for security reasons. However, they need to download a public PyTorch package for training. Which TWO steps should they take? (Choose TWO.)
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 training job to run in VPC-only mode
Option A is correct because enabling VPC-only mode (also known as network isolation) for a SageMaker training job ensures the job runs within a specified VPC and cannot access the internet. This satisfies the security requirement of blocking internet access. Option E is correct because creating an S3 VPC interface endpoint allows the training job to download the public PyTorch package from S3 privately, using AWS PrivateLink, without traversing the internet.
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.
- ✓
Configure the training job to run in VPC-only mode
Why this is correct
VPC-only blocks internet access.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use a public subnet for the training job
Why it's wrong here
Public subnet has internet access via internet gateway.
- ✗
Disable network isolation for the training job
Why it's wrong here
Network isolation prevents internet but VPC-only is the correct setting; disabling isolation would allow internet.
- ✗
Attach a NAT Gateway to the VPC to allow outbound internet
Why it's wrong here
Defeats the no-internet requirement.
- ✓
Create an S3 VPC interface endpoint to access S3 privately
Why this is correct
Allows downloading packages from S3 without internet.
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 'no internet access' with 'no network access at all,' and incorrectly assume that disabling network isolation or using a NAT Gateway is necessary for downloading packages, when in fact private connectivity via VPC endpoints is the correct approach.
Detailed technical explanation
How to think about this question
SageMaker network isolation, when enabled, attaches an elastic network interface (ENI) to the training job in the specified VPC but does not assign a public IP address, and the default route is removed. To access S3 privately, you must configure VPC interface endpoints (using AWS PrivateLink) for the S3 service, which allows traffic to stay within the AWS network. Without such endpoints, the training job would need internet access to reach S3, defeating the purpose of isolation.
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.
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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 training job to run in VPC-only mode — Option A is correct because enabling VPC-only mode (also known as network isolation) for a SageMaker training job ensures the job runs within a specified VPC and cannot access the internet. This satisfies the security requirement of blocking internet access. Option E is correct because creating an S3 VPC interface endpoint allows the training job to download the public PyTorch package from S3 privately, using AWS PrivateLink, without traversing the internet.
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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