CompTIA Network+ N10-009 (V9) Practice Question

A private network infrastructure is exclusively maintained for the communication needs within an organization, generally isolated from public access to secure sensitive data and operations. An intranet used by company employees is a prime example of such a network. Public networks are designed for public access, thus unfit for internal, sensitive communications. A VPN, although it uses public networks, essentially creates a 'private tunnel' and is mainly used for secure connections over the internet. A metropolitan area network (MAN) typically spans a larger geographic area like a city and can be either public or private, but the scenario describes a public service, making it broader than a single organization's private network.