What is the SMALLEST CIDR block that meets these requirements?
10.0.1.0/32
192.168.0.0/24
192.168.1.0/32
10.0.1.0/24
Explanations:
10.0.1.0/32 is a host address and does not provide a valid CIDR block for a VPC. CIDR blocks for VPCs must be at least /16 or /24 for practical usage, and /32 is not valid for a VPC.
192.168.0.0/24 is the CIDR block of the existing development VPC. A VPC cannot have the same CIDR block as another VPC it peers with; hence, this option is invalid.
192.168.1.0/32 is also a host address and does not provide a valid CIDR block for a VPC. A /32 CIDR block cannot be used for a VPC, as it must allocate more than one address.
10.0.1.0/24 is a valid CIDR block for a new VPC. It does not overlap with the development VPC’s CIDR block (192.168.0.0/24), and is appropriate for VPC peering. It allows for a larger subnet with 256 addresses.