- A
Store the secrets in the EC2 instance user data and retrieve them from the metadata service.
Why wrong: User data is visible to anyone with access to the instance metadata and is not secure.
- B
Embed the secrets in the application code and encrypt the code with a KMS key.
Why wrong: Embedding secrets in code is a security risk; encryption is not a substitute for proper secret management.
- C
Use AWS Secrets Manager and attach an IAM role to the EC2 instance with permission to access the secrets.
Secrets Manager provides secure storage, automatic rotation, and IAM-based access control.
- D
Use AWS Systems Manager Parameter Store with a SecureString parameter and reference it in the application code.
Why wrong: While secure, Parameter Store lacks automatic rotation and is less feature-rich than Secrets Manager.
Quick Answer
The answer is to use AWS Secrets Manager and attach an IAM role to the EC2 instance with permission to access the secrets. This approach is the most secure and manageable because Secrets Manager integrates natively with IAM roles, allowing you to grant least-privilege access to the EC2 instance without embedding credentials in code or configuration files. It also provides automatic secret rotation, which reduces the operational burden of manually updating database credentials or API keys. On the AWS Certified Security Specialty SCS-C02 exam, this question tests your understanding of secure secret delivery for compute workloads, often contrasting Secrets Manager against AWS Systems Manager Parameter Store or instance metadata. A common trap is assuming Parameter Store with encryption is equivalent, but Secrets Manager offers mandatory rotation policies and cross-account access that Parameter Store lacks. Remember the memory tip: “Secrets rotate, Parameters store”—if you need lifecycle management and rotation, choose Secrets Manager.
SCS-C02 Infrastructure Security Practice Question
This SCS-C02 practice question tests your understanding of infrastructure security. 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.
A company wants to securely store secrets used by an application running on EC2 instances. The secrets include database credentials and API keys. What is the MOST secure and manageable approach?
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 AWS Secrets Manager and attach an IAM role to the EC2 instance with permission to access the secrets.
Option A is correct because AWS Secrets Manager integrates with IAM roles for access and can rotate secrets. Option B is wrong because storing secrets in the instance metadata is insecure. Option C is wrong because parameter store with encrypt parameter is secure but has fewer features than Secrets Manager. Option D is wrong because embedding in code is not secure.
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.
- ✗
Store the secrets in the EC2 instance user data and retrieve them from the metadata service.
Why it's wrong here
User data is visible to anyone with access to the instance metadata and is not secure.
- ✗
Embed the secrets in the application code and encrypt the code with a KMS key.
Why it's wrong here
Embedding secrets in code is a security risk; encryption is not a substitute for proper secret management.
- ✓
Use AWS Secrets Manager and attach an IAM role to the EC2 instance with permission to access the secrets.
Why this is correct
Secrets Manager provides secure storage, automatic rotation, and IAM-based access control.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use AWS Systems Manager Parameter Store with a SecureString parameter and reference it in the application code.
Why it's wrong here
While secure, Parameter Store lacks automatic rotation and is less feature-rich than Secrets Manager.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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.
Identify which SCS-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
- →
Infrastructure Security — study guide chapter
Learn the concepts, then practise the questions
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FAQ
Questions learners often ask
What does this SCS-C02 question test?
Infrastructure Security — This question tests Infrastructure Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use AWS Secrets Manager and attach an IAM role to the EC2 instance with permission to access the secrets. — Option A is correct because AWS Secrets Manager integrates with IAM roles for access and can rotate secrets. Option B is wrong because storing secrets in the instance metadata is insecure. Option C is wrong because parameter store with encrypt parameter is secure but has fewer features than Secrets Manager. Option D is wrong because embedding in code is not secure.
What should I do if I get this SCS-C02 question wrong?
Identify which SCS-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
This SCS-C02 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 SCS-C02 exam.
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