- A
The EC2 instance is in a private subnet with no route to the internet or a VPC endpoint for Secrets Manager
Without a route to the Secrets Manager service, the request will fail.
- B
The secret is in a different AWS account
Why wrong: The scenario says same account and region.
- C
The IAM role is not attached to the instance profile
Why wrong: The instance has a role, so it is attached.
- D
The VPC endpoint for Secrets Manager has a policy that denies access from the instance's security group
The endpoint policy can restrict access based on source VPC or security group.
- E
The secret is encrypted with a customer managed KMS key, and the IAM role does not have kms:Decrypt permission
Secrets Manager uses KMS for encryption; the role needs Decrypt permission on the key.
SOA-C02 Security and Compliance Practice Question
This SOA-C02 practice question tests your understanding of security and compliance. 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 SysOps administrator is troubleshooting an issue where an EC2 instance cannot pull secrets from AWS Secrets Manager. The instance has an IAM role with a policy that allows secretsmanager:GetSecretValue. The secret is in the same account and region. What are possible reasons for the failure? (Choose THREE.)
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
The EC2 instance is in a private subnet with no route to the internet or a VPC endpoint for Secrets Manager
Option A is correct because if the EC2 instance is in a private subnet without a route to the internet (no NAT gateway or internet gateway) and no VPC endpoint for Secrets Manager, the instance cannot reach the Secrets Manager API endpoint. Secrets Manager requires network connectivity over HTTPS (port 443) to the service endpoint, and without either a public route or a VPC endpoint, the API calls will time out or fail with a connection error.
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.
- ✓
The EC2 instance is in a private subnet with no route to the internet or a VPC endpoint for Secrets Manager
Why this is correct
Without a route to the Secrets Manager service, the request will fail.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The secret is in a different AWS account
Why it's wrong here
The scenario says same account and region.
- ✗
The IAM role is not attached to the instance profile
Why it's wrong here
The instance has a role, so it is attached.
- ✓
The VPC endpoint for Secrets Manager has a policy that denies access from the instance's security group
Why this is correct
The endpoint policy can restrict access based on source VPC or security group.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
The secret is encrypted with a customer managed KMS key, and the IAM role does not have kms:Decrypt permission
Why this is correct
Secrets Manager uses KMS for encryption; the role needs Decrypt permission on the key.
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 overlook the need for kms:Decrypt permissions when a customer managed KMS key is used, assuming the secretsmanager:GetSecretValue permission alone is sufficient, or they forget that VPC endpoint policies can independently deny access even when IAM allows it.
Trap categories for this question
Scenario analysis trap
The scenario says same account and region.
Detailed technical explanation
How to think about this question
Under the hood, AWS Secrets Manager uses AWS KMS for envelope encryption; when you call GetSecretValue, the service first decrypts the secret using the KMS key, requiring kms:Decrypt permission. VPC endpoints use AWS PrivateLink, and endpoint policies are evaluated in addition to IAM policies, meaning a deny in the endpoint policy overrides any allow in IAM. Network connectivity failures manifest as connection timeouts or 'Unable to connect to endpoint' errors, not IAM permission errors, which helps differentiate the root cause.
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.
Visual reference
What to study next
Got this wrong? Here's your next step.
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Security and Compliance — study guide chapter
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FAQ
Questions learners often ask
What does this SOA-C02 question test?
Security and Compliance — This question tests Security and Compliance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The EC2 instance is in a private subnet with no route to the internet or a VPC endpoint for Secrets Manager — Option A is correct because if the EC2 instance is in a private subnet without a route to the internet (no NAT gateway or internet gateway) and no VPC endpoint for Secrets Manager, the instance cannot reach the Secrets Manager API endpoint. Secrets Manager requires network connectivity over HTTPS (port 443) to the service endpoint, and without either a public route or a VPC endpoint, the API calls will time out or fail with a connection error.
What should I do if I get this SOA-C02 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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