Which statement about WANs is true?

Which statement about WANs is true?

• A. A WAN connects devices across a single building.
• B. LANs require the Internet to operate.
• C. The Internet is an example of a WAN.
• D. WANs are never used by businesses.

Answer: (C)

Wide area networks connect multiple local networks over large geographic distances, typically using service-provider networks or the Internet to link offices, data centers, and other sites. Because the Internet itself interconnects networks across the globe, it functions as a WAN—essentially a network of networks that spans continents. This is why the Internet is true as a WAN example. In contrast, a single-building network describes a local area network, which is confined to a small area like an office or campus. LANs can operate without the Internet, using private links to share resources. And WANs are commonly used by businesses to connect different sites, so the statement that WANs are never used by businesses isn’t accurate.

Wide area networks connect multiple local networks over large geographic distances, typically using service-provider networks or the Internet to link offices, data centers, and other sites. Because the Internet itself interconnects networks across the globe, it functions as a WAN—essentially a network of networks that spans continents. This is why the Internet is true as a WAN example.

In contrast, a single-building network describes a local area network, which is confined to a small area like an office or campus. LANs can operate without the Internet, using private links to share resources. And WANs are commonly used by businesses to connect different sites, so the statement that WANs are never used by businesses isn’t accurate.