The logic is correct. Rooms Ulanov do not matter, but to allocate the same type of device in a private network-it is right and good. The connectivity between vlname is also provided, as well as between separate physical networks-with the help of the router. Read what VLAN trunking, and review how this is being Microtech, and configure routing on it.
Network segmentation-this is not just good manners, it is a necessity, especially in light of the development malware/viruses and other security threats. Printers/phones-easily affected devices, so they need to be isolated. A flat network where all the computers of the organization are in the same VLAN/network segment will cause any stray NotPetya will spread throughout the network in a matter of minutes. And it will be like here
. Or mommy's hackers some will begin to pick the components of the neighboring division for the network. So cementary and customized rules of circulation of traffic between subnets -- this is a must-have in the modern world.