Which type of network links multiple enterprise networks across broader geographic areas, often using public links?

• A. Local-area network
• B. Wide-area network
• C. Campus network
• D. Personal-area network

Answer: (B)

The concept here is about connecting networks over large geographic distances. A wide-area network is designed to link multiple enterprise networks that may be spread across cities, states, or even countries, often using public links like the Internet or leased lines. This allows disparate sites to function as part of one large network, sharing resources and data as if they were nearby.

Local-area networks cover a single building or campus and stay within a small geographic area, offering high-speed connectivity but not intended for long-distance linking. Campus networks extend a bit farther than a single building but still stay within a limited region, such as a university campus. Personal-area networks are for nearby personal devices, like a phone connected to a headset, and are far too small in scope to link enterprise networks.

So, the best fit for linking multiple enterprise networks across broad geographic areas using public links is a wide-area network.