- A
AWS Systems Manager Parameter Store
Why wrong: Parameter Store can securely store configuration data and secrets, but it does not natively support automatic rotation of secrets. Custom automation would be required to achieve the rotation requirement, making it less suitable than Secrets Manager for this use case.
- B
AWS Secrets Manager
Secrets Manager is the correct service. It provides native support for automatic rotation of credentials, including built-in integration with Amazon RDS. It also offers fine-grained IAM policies and central management of secrets, meeting all stated requirements.
- C
AWS Key Management Service (AWS KMS)
Why wrong: KMS manages encryption keys used to encrypt data, not secrets like database credentials. While it can encrypt the secrets stored elsewhere, it does not provide secret storage or rotation capabilities.
- D
AWS Identity and Access Management (IAM)
Why wrong: IAM manages user identities, permissions, and access to AWS resources. It cannot store secrets or rotate credentials. Using IAM roles is a best practice for temporary credentials, but the question specifically requires storing and rotating long-lived database credentials.
Quick Answer
The answer is AWS Secrets Manager. This service is the correct choice because it is purpose-built for securely storing, managing, and automatically rotating database credentials, including integration with Amazon RDS for automatic rotation every 90 days using built-in Lambda functions. It also provides fine-grained IAM policies to control exactly which users and applications can access the secrets, addressing both the security and compliance requirements. On the AWS Certified Cloud Practitioner CLF-C02 exam, this scenario tests your understanding of the core difference between Secrets Manager and Systems Manager Parameter Store—a common trap is choosing Parameter Store, which lacks native automatic rotation for RDS credentials. Remember the memory tip: if you need automatic rotation and fine-grained IAM control for database secrets, think "Secrets Manager rotates, Parameter Store stores."
CLF-C02 Security and Compliance Practice Question
This CLF-C02 practice question tests your understanding of security and compliance. 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's security team discovers that database credentials are stored in plaintext in application configuration files. The team wants to implement a secure way to store, manage, and automatically rotate these credentials every 90 days. The solution must provide fine-grained IAM policies to control which users and applications can access the secrets and must integrate with AWS services like Amazon RDS for automatic rotation. Which AWS service should the company use to meet 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
AWS Secrets Manager
AWS Secrets Manager is the correct service because it is purpose-built for securely storing, managing, and automatically rotating database credentials. It supports automatic rotation every 90 days for Amazon RDS, Aurora, Redshift, and DocumentDB with built-in Lambda rotation functions, and it integrates with IAM for fine-grained access control via resource-based and identity-based policies.
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.
- ✗
AWS Systems Manager Parameter Store
Why it's wrong here
Parameter Store can securely store configuration data and secrets, but it does not natively support automatic rotation of secrets. Custom automation would be required to achieve the rotation requirement, making it less suitable than Secrets Manager for this use case.
- ✓
AWS Secrets Manager
Why this is correct
Secrets Manager is the correct service. It provides native support for automatic rotation of credentials, including built-in integration with Amazon RDS. It also offers fine-grained IAM policies and central management of secrets, meeting all stated requirements.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Key Management Service (AWS KMS)
Why it's wrong here
KMS manages encryption keys used to encrypt data, not secrets like database credentials. While it can encrypt the secrets stored elsewhere, it does not provide secret storage or rotation capabilities.
- ✗
AWS Identity and Access Management (IAM)
Why it's wrong here
IAM manages user identities, permissions, and access to AWS resources. It cannot store secrets or rotate credentials. Using IAM roles is a best practice for temporary credentials, but the question specifically requires storing and rotating long-lived database credentials.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS Systems Manager Parameter Store (which can store secrets but lacks native rotation) with Secrets Manager, leading them to choose Parameter Store when the question explicitly requires automatic rotation.
Detailed technical explanation
How to think about this question
Under the hood, Secrets Manager uses a Lambda function (provided by AWS or custom) to rotate the secret, updating both the secret in Secrets Manager and the target RDS instance in a single atomic operation. The rotation process follows a four-step flow (create pending, set secret, test, finish) to ensure zero downtime. A real-world scenario is when a compliance mandate requires credential rotation every 90 days; Secrets Manager can enforce this automatically without manual intervention, and IAM policies can restrict access to specific secrets using conditions like 'secretsmanager:ResourceTag/Environment'.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Security and Compliance — study guide chapter
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FAQ
Questions learners often ask
What does this CLF-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: AWS Secrets Manager — AWS Secrets Manager is the correct service because it is purpose-built for securely storing, managing, and automatically rotating database credentials. It supports automatic rotation every 90 days for Amazon RDS, Aurora, Redshift, and DocumentDB with built-in Lambda rotation functions, and it integrates with IAM for fine-grained access control via resource-based and identity-based policies.
What should I do if I get this CLF-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: Jun 11, 2026
This CLF-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 CLF-C02 exam.
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