SCS-C03 Security Foundations and Governance Practice Question
Which service should be used to securely store and automatically rotate database credentials?
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
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AWS Secrets Manager
AWS Secrets Manager is the standard for managing sensitive information like database credentials. It allows for secure storage, centralized access control, and, crucially, automated rotation of passwords without downtime. This governance feature is vital for compliance, as it forces regular credential cycling, which mitigates the risk of long-lived, compromised secrets being used for unauthorized database access, thereby strengthening the overall data security posture.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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AWS Systems Manager Parameter Store
Why it's wrong here
While Parameter Store supports secure string storage, it lacks the built-in, automated secret rotation capabilities that Secrets Manager provides. For rotating database passwords specifically, Secrets Manager is the preferred, managed solution that integrates seamlessly with RDS to update credentials, making it the superior choice for governance and security.
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AWS Secrets Manager
Why this is correct
Secrets Manager is specifically designed for the lifecycle management of secrets. It supports automated rotation, encrypted storage, and granular access control via IAM. This makes it the recommended solution for managing database credentials, ensuring that passwords are updated frequently and securely without manual intervention or application code changes.
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Amazon S3
Why it's wrong here
Storing credentials in S3 is a severe security anti-pattern. S3 is designed for object storage, not as a secrets vault. Even with encryption, it lacks the audit, automated rotation, and access-control features necessary for a secure secrets management lifecycle, making it highly unsuitable and non-compliant for sensitive data.
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AWS KMS
Why it's wrong here
AWS KMS is used for managing encryption keys, not for storing application secrets or credentials. While KMS is used by Secrets Manager to encrypt the secrets, it does not manage the rotation of the password itself, nor does it provide the key-value storage required for managing database credentials.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
About these practice questions
This SCS-C03 question is part of Courseiva's 99-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Amazon Web Services exam blueprint
This SCS-C03 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-C03 exam.