- A
Use a notebook with internet access enabled but attach a security group that blocks all outbound traffic.
Why wrong: Internet access enabled allows metadata service; blocking outbound may break SageMaker API calls.
- B
Use a notebook with a public subnet and a network ACL that denies all inbound traffic.
Why wrong: Public subnet implies internet gateway, violating no internet access.
- C
Use a VPC-only notebook with default AWS managed key for EBS encryption.
Why wrong: Default AWS managed key does not satisfy customer-managed encryption requirements.
- D
Use a VPC-only notebook instance with a customer-managed KMS key and disable direct internet access.
VPC-only blocks internet, KMS encrypts at rest, HTTPS encrypts in transit.
Question 315 of 1,000
SageMaker Notebook Security Configuration
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 company is using a SageMaker notebook instance to develop models. The security team requires that all data in the notebook be encrypted at rest and in transit, and that internet access be restricted. Which configuration meets these requirements?
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
✓
Use a VPC-only notebook instance with a customer-managed KMS key and disable direct internet access.
Option D is correct because a VPC-only SageMaker notebook instance ensures that all network traffic stays within the customer's VPC, and disabling direct internet access prevents any outbound internet connectivity. Using a customer-managed KMS key for EBS encryption meets the encryption-at-rest requirement, while SageMaker automatically encrypts data in transit using TLS 1.2 within the VPC, satisfying both security mandates.
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.
- ✗
Use a notebook with internet access enabled but attach a security group that blocks all outbound traffic.
Why it's wrong here
Internet access enabled allows metadata service; blocking outbound may break SageMaker API calls.
- ✗
Use a notebook with a public subnet and a network ACL that denies all inbound traffic.
Why it's wrong here
Public subnet implies internet gateway, violating no internet access.
- ✗
Use a VPC-only notebook with default AWS managed key for EBS encryption.
Why it's wrong here
Default AWS managed key does not satisfy customer-managed encryption requirements.
- ✓
Use a VPC-only notebook instance with a customer-managed KMS key and disable direct internet access.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume that blocking inbound traffic (Option A or B) is sufficient to restrict internet access, but they overlook that outbound internet access must also be explicitly disabled, and that encryption-at-rest requires a customer-managed KMS key, not just any encryption key.
Detailed technical explanation
How to think about this question
When you disable direct internet access on a VPC-only SageMaker notebook, the instance is launched in a private subnet and cannot reach the internet, but it can still access AWS services through VPC endpoints (e.g., S3, SageMaker API) or a NAT gateway if configured. The customer-managed KMS key provides an additional layer of control over the EBS volume encryption, allowing the security team to enforce key rotation, auditing, and access policies via AWS KMS, which is often required for compliance frameworks like SOC 2 or PCI DSS.
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.
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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: Use a VPC-only notebook instance with a customer-managed KMS key and disable direct internet access. — Option D is correct because a VPC-only SageMaker notebook instance ensures that all network traffic stays within the customer's VPC, and disabling direct internet access prevents any outbound internet connectivity. Using a customer-managed KMS key for EBS encryption meets the encryption-at-rest requirement, while SageMaker automatically encrypts data in transit using TLS 1.2 within the VPC, satisfying both security mandates.
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.
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Last reviewed: Jul 4, 2026
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