- A
Use endpoint data encryption with an AWS managed key and enable public endpoint access
Why wrong: Public access violates the requirement of no public internet access.
- B
Enable inter-container traffic encryption and disable VPC-only mode
Why wrong: VPC-only mode is required to block public internet access.
- C
Enable VPC-only mode, inter-container traffic encryption, and use a KMS key for endpoint encryption
VPC-only isolates the endpoint; inter-container encryption secures traffic; KMS encrypts data at rest.
- D
Deploy the endpoint in a private subnet without SageMaker VPC-only mode
Why wrong: Without VPC-only mode, the endpoint may still have a public endpoint.
Question 944 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 financial services company deploys a fraud detection model with a SageMaker endpoint. They need to ensure that all data sent to the endpoint is encrypted in transit and at rest, and that the endpoint cannot be accessed from the public internet. Which combination of settings should they use?
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
✓
Enable VPC-only mode, inter-container traffic encryption, and use a KMS key for endpoint encryption
VPC-only mode ensures the endpoint is private. Inter-container traffic encryption is needed for data in transit between containers in multi-model endpoints. KMS encryption secures data at rest on the instance storage.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
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 endpoint data encryption with an AWS managed key and enable public endpoint access
Why it's wrong here
Public access violates the requirement of no public internet access.
- ✗
Enable inter-container traffic encryption and disable VPC-only mode
Why it's wrong here
VPC-only mode is required to block public internet access.
- ✓
Enable VPC-only mode, inter-container traffic encryption, and use a KMS key for endpoint encryption
- ✗
Deploy the endpoint in a private subnet without SageMaker VPC-only mode
Why it's wrong here
Without VPC-only mode, the endpoint may still have a public endpoint.
Common exam traps
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
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.
What to study next
Got this wrong? Here's your next step.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related MLA-C01 subnetting questions on CIDR, address ranges, and subnet selection.
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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 — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: Enable VPC-only mode, inter-container traffic encryption, and use a KMS key for endpoint encryption — VPC-only mode ensures the endpoint is private. Inter-container traffic encryption is needed for data in transit between containers in multi-model endpoints. KMS encryption secures data at rest on the instance storage.
What should I do if I get this MLA-C01 question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related MLA-C01 subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
About these practice questions
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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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