You are a software developer and working on a Node.js web application. The app is ready to be deployed for further testing. You want to deploy it with AWS Elastic Beanstalk, and the application should be put in a custom VPC. You plan to specify the VPC settings in a .ebextensions configuration file. Which description is correct?

Answer options:

A.Define the VPC settings in the Resources section of the .ebextensions configuration files.
B.Define the VPC configurations in the aws:ec2:vpc namespace such as:
- namespace: aws:ec2:vpc
 option_name: VPCId
 value: vpc-170647c
C.Create a saved configuration that contains the VPC settings and apply it using EB CLI.
D.Configure the VPC in the option_settings namespace such as:
- namespace: option_settings
option_name: VPCId
value: vpc-170647c

Correct Answer – B
Option A is incorrect: Because the VPC settings should be put in the option_settings section instead of the Resources section.
Option B is CORRECT: Because the aws:ec2:vpc namespace is the correct place to customize the VPC settings such as VPCId and subnets.
Option C is incorrect: Because the question requires that the configurations should be put in the .ebextensions files.
Option D is incorrect: Because for VPC settings, the namespace should be aws:ec2:vpc. For details, please refer to the below reference.
Reference:
https://docs.amazonaws.cn/en_us/elasticbeanstalk/latest/dg/vpc-rds.html