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

There is no need to update the subnet as VPC automatically adjusts the CIDR of the first
based on the second subnet’s CIDR

The user can modify the first subnet CIDR from the console

It is not possible to create a second subnet as one subnet with the same CIDR as the VPC has

The user can modify the first subnet CIDR with AWS CLI

A Virtual Private Cloud (VPC. is a virtual network dedicated to the user’s AWS account. A user can
create a subnet with VPC and launch instances inside the subnet. The user can create a subnet
with the same size of VPC. However, he cannot create any other subnet since the CIDR of the
second subnet will conflict with the first subnet. The user cannot modify the CIDR of a subnet once
it is created. Thus, in this case if required, the user has to delete the subnet and create new


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