A user is surfing the Internet using a laptop from a public WiFi cafe. They should check if the laptop requires user authentication for file and media sharing first when the user connects to the public network.
Anybody, or the general public, can connect to a public network, which is a particular kind of network through which they can access other networks or the Internet. In contrast, access is restricted and governed by rules on a private network, where only a select group of people have access to it. Users must be cautious of potential security risks when accessing a public network because there are little to no restrictions.
Rather than referring to a topology or other technical concept, "public network" refers to a usage term. With the exception of the security, addressing, and authentication systems in place, there is no technical distinction between a private and public network in terms of hardware or infrastructure.
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