What is a key characteristic of a public network?

A public network is fundamentally characterized by its broad accessibility to a wide audience. This means that any user, regardless of their specific affiliation or subscription status, can connect and utilize the network. Public networks, like the Internet, allow for open access, facilitating communication and the sharing of information across various domains and user groups.

In contrast, private networks are limited to specific users or organizations and are designed for restricted access. The requirement for subscriptions applies to certain types of networks, but it does not define the nature of public networks, which are often free to access. Additionally, the concept of a public network does not restrict its use to government communications; in fact, it is utilized by individuals, businesses, and various entities for a myriad of purposes. Therefore, the key characteristic that sets a public network apart is its accessibility to any user.