Which of the following network is totally isolated from the global internet.
Private network is totally isolated from the global internet.
In the Internet addressing architecture, a private network is a network that uses private IP address space. Both, the IPv4 and the IPv6 specifications define private addressing ranges. These addresses are commonly used for local area networks (LANs) in residential, office, and enterprise environments.
The main difference between public and private networks, apart from the fact that access to a private network is tightly controlled and access to a public network is not, is that the addressing of devices on a public network must be considered carefully, whereas addressing on a private network has a little more.
A public network is a type of network wherein anyone, namely the general public, has access and through it can connect to other networks or the Internet. This is in contrast to a private network, where restrictions and access rules are established in order to relegate access to a select few.