A solution architect is developing a serverless application consisting of AWS Lambda functions and Amazon Aurora Serverless cluster. What solution would enable the solution architect to establish a connection to the Aurora Serverless cluster from the Lambda function?

Answer options:

A.Connect to the Aurora Serverless public writer-endpoint.
B.Create an AWS Lambda Execution Role.
C.Configure VPC peering.
D.Connect the AWS Lambda function to the private VPC via an elastic network interface.

Answer: D
Option A is incorrect because the Aurora Serverless DB cluster can’t have a public IP address. An Aurora Serverless DB cluster can only be accessed from within a VPC.Option B is incorrect because AWS Lambda execution roles are used for granting permission to access other AWS services and resources. It is not used for network connectivity.
Option C is incorrect because VPC peering is used for creating a network connection between two VPC’s. It cannot be used to create a connection from Lambda to a VPC.Option D is CORRECT because the Aurora Serverless DB cluster can’t have a public IP address. An Aurora Serverless DB cluster can only be accessed from within a VPC. Therefore, we require to connect the AWS Lambda to the private VPC using an elastic network interface.
Reference:
https://docs.aws.amazon.com/lambda/latest/dg/configuration-vpc.html