AWS Certified Solutions Architect - Professional (#547)

A user has created a VPC with CIDR 20.0.0.0/16. The user has created one subnet with CIDR 20.0.0.0/16 by mistake. The user is trying to create another subnet of CIDR 20.0.1.0/24. How can the user create the second subnet?

The user can modify the first subnet CIDR with AWS CLI
The user can modify the first subnet CIDR from the console
There is no need to update the subnet as VPC automatically adjusts the CIDR of the first subnet based on the second subnet's CIDR
It is not possible to create a second subnet with overlapping IP CIDR without deleting the first subnet.