Your system automatically provisions EIPs to new EC2 instances. On your new AWS account, your attempt to create a Production environment failed, after successfully creating the Development and Staging environments in the same region. It seems that the number of EIPs hit the limit. How would you fix the problem?

Answer options:

A.Check the usage of EIPs in AWS Trusted Advisor and increase the limit from 5 to 100 through the AWS Trusted Advisor portal.
B.Raise a ticket to AWS support to increase the EC2 EIP limit from 5 to 30.
C.Request a quota increase for the Elastic IPs directly from the AWS Service Quotas console.
D.The EIP limit cannot be adjusted. You need to modify EIPs to public or private IPs in your script.

Answer - C
Option A is incorrect. Although you can check the EIP limits in AWS Trusted Advisor, you cannot increase its limit through the AWS Trusted Advisor portal.
Option B is incorrect. Although this method is possible, it is easier and is the method suggested by AWS.
Option C is CORRECT because you can fill in the form in AWS Service Quotas to request the increase of the EIP limit.
Option D is incorrect because the EIP limit can be adjusted as option
C.
For more information on Elastic IP limit, please visit the below URL:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/elastic-ip-addresses-eip.html#using-instance-addressing-limit