Which goal is achieved by the implementation of private IPv4 addressing on a network?
The implementation of private IPv4 addressing on a network achieves the goal of providing an added level of protection against Internet exposure.
IPv4 addresses are unique numerical identifiers assigned to devices on a network, including servers and workstations. These addresses can be classified as either public or private. Public IPv4 addresses are assigned by Internet Service Providers (ISPs) and are globally routable, meaning they can be accessed over the internet. In contrast, private IPv4 addresses are not globally routable and are used for communication within a private network only.
The use of private IPv4 addressing provides an added level of protection against Internet exposure because it allows a network to use non-routable IP addresses. This means that devices on the network can communicate with each other without being directly accessible from the internet. This is important for security reasons, as it helps to prevent unauthorized access to devices and data on the network.
Private IPv4 addressing does not allow communication across the Internet to other private networks, nor does it allow servers and workstations to communicate across public network boundaries. These goals would require additional networking technologies such as Network Address Translation (NAT) or Virtual Private Networks (VPNs).
Therefore, option A is the correct answer as it accurately describes the main benefit of implementing private IPv4 addressing on a network.