AWS Certified Solutions Architect - Professional (#237)

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 in this VPC. The user is trying to create another subnet with the same VPC for CIDR 20.0.0.1/24. What will happen in this scenario?

The VPC will modify the first subnet CIDR automatically to allow the second subnet IP range
The second subnet will be created
It will throw a CIDR overlaps error
It is not possible to create a subnet with the same CIDR as VPC