What does a Personal Area Network (PAN) typically include?

A Personal Area Network (PAN) typically includes small area networks that are designed for personal devices within a limited range, usually around a few meters. These networks are commonly implemented using wireless communication technologies like Bluetooth, which allows devices such as smartphones, tablets, laptops, and wearable devices to connect and communicate with each other seamlessly.

The defining characteristic of a PAN is its focus on short-range, personal use, making it distinct from larger network types like Local Area Networks (LAN) or Wide Area Networks (WAN). Because of this limited scope and the technology often used, a PAN is well-suited for scenarios where devices are in close proximity and require quick and easy communication without the need for extensive infrastructure.

The other options refer to larger or different types of networks—the first choice mentions wired networks within buildings, which are typically classified as LANs rather than PANs. The third option describes interconnected nodes spread across cities, which aligns more with WANs, while the last choice emphasizes networks that serve large enterprises, again indicating a scale beyond that of a personal area network. This divergence highlights the unique nature of PAN technology, making the provided answer the most accurate representation of what a PAN includes.