AWS IP Address Ranges

Answer - A.

The AWS Documentation mentions the following.

Amazon Web Services (AWS) publishes its current IP address ranges in JSON format.

To view the current ranges, download the .json file.

To maintain history, save successive versions of the .json file on your system.

To determine whether there have been changes since the last time that you saved the file, check the publication time in the current file and compare it to the publication time in the last file that you saved.

For more information on AWS reserved IP ranges, please refer to below URL:

http://docs.aws.amazon.com/general/latest/gr/aws-ip-ranges.html

The correct answer is A. ip-ranges.json.

AWS provides a list of IP address ranges that are assigned to and used by its services. This list is available in the form of a JSON file named ip-ranges.json. The file contains a detailed list of IP address ranges for all AWS services, including EC2, RDS, S3, CloudFront, and more.

The ip-ranges.json file is updated regularly to reflect changes in the IP address ranges used by AWS. You can access the file via HTTPS from the AWS IP Address Ranges page (https://ip-ranges.amazonaws.com/ip-ranges.json).

This list is useful for setting up network security and access control rules for resources within your own VPCs or for interacting with AWS services. You can use this information to allow or deny incoming traffic to your network from AWS services or to configure outbound traffic from your network to AWS services.

It's important to note that the IP address ranges in the ip-ranges.json file are subject to change and should be regularly reviewed and updated to ensure your security rules are still valid.