Your company runs an automobile reselling company that has a popular online store on AWS. The application sits behind an Auto Scaling group and requires new instances of the Auto Scaling group to identify their public and private IP addresses. Which of the following is the correct AWS option to identify the IP addresses?

Answer options:

A.By using Ipconfig for windows or Ifconfig for Linux.
B.By using a CloudTrail.
C.Using a Curl or Get Command to get the latest meta-data from http://169.254.169.254/latest/meta-data/
D.Using a Curl or Get Command to get the latest user-data from http://169.254.169.254/latest/user-data/

Answer – C
To get the private and public IP addresses, you can run the following commands on the running instance.
http://169.254.169.254/latest/meta-data/local-ipv4
http://169.254.169.254/latest/meta-data/public-ipv4
Option A is partially correct, but it is an overhead when you already have the service running in AWS.
Option B is incorrect because CloudTrail is used for tracking the API activities of a resource.
Option D is incorrect because user-data cannot get the IP addresses.
For more information on instance metadata, please refer to the below URL-
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html