Amazon Web Services DVA-C02 Exam With Confidence Using Practice Dumps

Requirement Summary:

Lambda function accesses RDS for MySQL

Credentials are currently hardcoded in code (insecure)

Must enable automated credential rotation every 30 days

Option A: Use AWS Secrets Manager + automatic rotation

Best and secure option

Secrets Manager allows:

Secure storage of secrets

Integration with RDS for automatic rotation

Scheduled rotation every X days (e.g., 30 days)

Lambda can fetch credentials via SDK (GetSecretValue)

Option B: Use SSM Parameter Store + rotation

SSM does not support automatic rotation of secrets.

You'd need to build custom rotation logic = higher operational overhead.

Option C: Encrypted S3 + Object Lambda rotation

Not intended for credential storage.

S3 is not a secrets management system, and Object Lambda does not perform rotation.

Option D: SSM + EventBridge rotation

No native integration between Parameter Store and EventBridge for secret rotation.

You’d need to build custom Lambda functions = higher maintenance.

Secrets Manager rotation for RDS:

Secure retrieval in Lambda:

Integration with RDS MySQL:

Problem: CloudFormation updates reset Parameter Store parameters, disrupting application behavior.

Deletion Policy: CloudFormation has a deletion policy that controls resource behavior when a stack is deleted or updated. The 'Retain' policy instructs CloudFormation to preserve a resource's current state.

Least Development Effort: This solution involves a simple CloudFormation template modification, requiring minimal code changes.

Amazon S3 supports resource-based policies, which are JSON documents that specify the permissions for accessing S3 resources. A resource-based policy can be used to enforce encryption in transit by denying access to requests that do not use HTTPS. The condition key aws:SecureTransport can be used to check if the request was sent using SSL. If the value of this key is false, the request is denied; otherwise, the request is allowed. Reference: How do I use an S3 bucket policy to require requests to use Secure Socket Layer (SSL)?