- A
An Interface VPC endpoint (AWS PrivateLink) for secretsmanager in your Region
Secrets Manager supports Interface VPC endpoints. An interface endpoint provides private connectivity from subnets to the Secrets Manager API without traversing the public internet.
- B
A Gateway VPC endpoint for secretsmanager
Why wrong: Gateway endpoints are used for certain AWS services (commonly S3 and DynamoDB). Secrets Manager uses Interface endpoints, not gateway endpoints.
- C
A NAT gateway in the private subnet route table
Why wrong: A NAT gateway provides outbound internet egress. This contradicts the stated constraint of no NAT gateway (and, by implication, no internet routing).
- D
A VPC peering connection to the AWS public network hosting Secrets Manager
Why wrong: VPC peering is not the mechanism used to reach AWS service endpoints like Secrets Manager. The supported approach for private access to these APIs is AWS PrivateLink interface endpoints.
SAA-C03 Design Secure Architectures Practice Question
This SAA-C03 practice question tests your understanding of design secure architectures. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Your application runs in private subnets with no NAT gateway. It needs to call AWS Secrets Manager to retrieve secrets. For private connectivity without internet egress, which VPC endpoint type should you create for AWS Secrets Manager?
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
An Interface VPC endpoint (AWS PrivateLink) for secretsmanager in your Region
An Interface VPC endpoint (AWS PrivateLink) creates an elastic network interface in your subnet with a private IP address, allowing your instances to communicate with AWS Secrets Manager over the AWS network without traversing the internet. Since your application runs in private subnets with no NAT gateway, this is the only supported endpoint type for Secrets Manager, as Gateway endpoints are only available for S3 and DynamoDB.
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.
- ✓
An Interface VPC endpoint (AWS PrivateLink) for secretsmanager in your Region
Why this is correct
Secrets Manager supports Interface VPC endpoints. An interface endpoint provides private connectivity from subnets to the Secrets Manager API without traversing the public internet.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
A Gateway VPC endpoint for secretsmanager
Why it's wrong here
Gateway endpoints are used for certain AWS services (commonly S3 and DynamoDB). Secrets Manager uses Interface endpoints, not gateway endpoints.
- ✗
A NAT gateway in the private subnet route table
- ✗
A VPC peering connection to the AWS public network hosting Secrets Manager
Why it's wrong here
VPC peering is not the mechanism used to reach AWS service endpoints like Secrets Manager. The supported approach for private access to these APIs is AWS PrivateLink interface endpoints.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Gateway endpoints (which are free and only for S3/DynamoDB) with Interface endpoints (which incur hourly charges and support many services like Secrets Manager), leading them to incorrectly select option B.
Detailed technical explanation
How to think about this question
Interface VPC endpoints use AWS PrivateLink, which leverages ENIs (elastic network interfaces) in your subnet to route traffic to the service via DNS resolution (using a private hosted zone). The endpoint supports security groups for fine-grained access control, and traffic stays within the AWS backbone, never leaving the VPC. In a real-world scenario, if you need to access Secrets Manager from a Lambda function in a private subnet without a NAT gateway, you must attach the VPC endpoint to the subnet and configure the Lambda's VPC settings accordingly.
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.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this SAA-C03 question test?
Design Secure Architectures — This question tests Design Secure Architectures — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: An Interface VPC endpoint (AWS PrivateLink) for secretsmanager in your Region — An Interface VPC endpoint (AWS PrivateLink) creates an elastic network interface in your subnet with a private IP address, allowing your instances to communicate with AWS Secrets Manager over the AWS network without traversing the internet. Since your application runs in private subnets with no NAT gateway, this is the only supported endpoint type for Secrets Manager, as Gateway endpoints are only available for S3 and DynamoDB.
What should I do if I get this SAA-C03 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: Jun 11, 2026
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