A developer is troubleshooting a Lambda function in a VPC that fails to connect to a private subnet-hosted Amazon RDS SQL Server instance on port 1433. What steps should be taken to diagnose the connectivity issue?

Exam-Like

Verify security group rules for both the Lambda function and the RDS instance to allow appropriate port 1433 access.

43.8%

Ensure security group configurations permit necessary port 1433 traffic between the Lambda function and the RDS instance.

12.5%

Check if the VPC is configured with a NAT gateway and if the RDS instance is set to allow public access.

12.5%

Validate that the Lambda function's execution role includes permissions for RDS instance management.

6.3%

Confirm the Lambda function's execution role has permissions for creating, describing, and deleting VPC network interfaces.

25.0%

AWS Certified Developer - Associate