What is a valid management network CIDR based on the requirements?

A cloud administrator is deploying a new software-defined data center (SDDC) in VMware Cloud on AWS. Long-term planning indicates that a minimum of 30 hosts are required.

What is a valid management network CIDR based on the requirements?
A . 10.4.0.0/23
B . 10.3.0.0/24
C . 10.2.0.0/16
D . 10.1.0.0/20

Answer: D

Explanation:

A valid management network CIDR based on the requirements is 10.1.0.0/20, as this provides a range of 4096 IP addresses, which is more than enough for 30 hosts. A /23 CIDR only provides 512 IP addresses, which is not enough for 30 hosts, while a /24 CIDR provides 256 IP addresses and a /16 CIDR provides 65,536 IP addresses, which is more than is needed for the 30 hosts. https://blogs.vmware.com/cloud/2019/10/03/selecting-ip-subnets-sddc/