There are supposed to be 2 networks: i) The first one is the one which all the virtual machines and the host share(Host-only condition). This one is easily achievable for me, as an amateurish beginner. ii)The second network is the one in which only 2 virtual machines are to be connected. These 2 virtual machines should also be connected to the Network(i).

I understand that for the 2 virtual hosts that are to be connected in a separate networks simultaneously, it means that they need to have 2 IPs, and hence 2 ports(physical)/ethernet interfaces?