You have an EC2 Instance based out of the Amazon Linux AMI. You have created a secondary Network Interface and attached it to the running instance. What needs to be done to ensure that the new network interface is configured automatically?

Answer options:

A.Go ahead and add the interfaces to the network interfaces location on the instance
B.Use the AWS CLI to configure the network interface
C.The Amazon based instances do not accept secondary interfaces
D.This will configured automatically.

Answer - D
The AWS documentation mentions the following
Launching an Amazon Linux or Windows Server instance with multiple network interfaces automatically configures interfaces, private IPv4 addresses, and route tables on the operating system of the instance
For more information on the Elastic Network Interface please see the below link:
http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/using-eni.html