Explanation/Reference:
References:
https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/ipconfig

Explanation/Reference:
Hubs repeat everything they receive and can be used to extend the network.
Switches control the flow of network traffic based on the address information in each packet. A switch learns which devices are connected to its ports (by monitoring the packets it receives), and then forwards on packets to the appropriate port only. This allows simultaneous communication across the switch, improving bandwidth.

Explanation/Reference:
Incorrect:
The private address space specified in RFC 1918 is defined by the following three address blocks:
not D: 192.168.0.0/16
The 192.168.0.0/16 private network can be interpreted either as a block of 256 class C network IDs or as a 16- bit assignable address space (16 host bits) that can be used for any subnetting scheme within the private organization. The 192.168.0.0/16 private network allows the following range of valid IP addresses: 192.168.0.1 to 192.168.255.254.
Not A:
10.0.0.0/8
The 10.0.0.0/8 private network is a class A network ID that allows the following range of valid IP addresses:
10.0.0.1 to 10.255.255.254. The 10.0.0.0/8 private network has 24 host bits that can be used for any subnetting scheme within the private organization.
Not C:
172.16.0.0/12
The 172.16.0.0/12 private network can be interpreted either as a block of 16 class B network IDs or as a 20-bit assignable address space (20 host bits) that can be used for any subnetting scheme within the private organization. The 172.16.0.0/12 private network allows the following range of valid IP addresses: 172.16.0.1 to
172.31.255.254.
Reference: Technet, Public and Private Addresses