Which wireless technology interconnects devices around a person within a very short range (about 10 meters)?

Which wireless technology interconnects devices around a person within a very short range (about 10 meters)?

• A. Wireless Local Area Network
• B. Wireless Personal Area Network
• C. Wireless Wide Area Network
• D. Wireless Metropolitan Area Network

Answer: (B)

Short-range, personal-area interconnection is what Wireless Personal Area Networks are all about. WPANs are designed to link devices that are very close to a person—typically within about 10 meters—so you can move data or audio between a phone, headset, keyboard, watch, or other nearby gadgets without wires. Bluetooth is the most common example of this kind of technology, illustrating how devices right around you can quickly pair and communicate. In contrast, the other options describe much larger coverage. A WLAN is meant for local networks that cover a room or building, usually tens to hundreds of meters. A WMAN spans a metropolitan area, and a WAN covers even larger distances. So the description of very short-range, near-person connectivity points to a Wireless Personal Area Network.

Short-range, personal-area interconnection is what Wireless Personal Area Networks are all about. WPANs are designed to link devices that are very close to a person—typically within about 10 meters—so you can move data or audio between a phone, headset, keyboard, watch, or other nearby gadgets without wires. Bluetooth is the most common example of this kind of technology, illustrating how devices right around you can quickly pair and communicate.

In contrast, the other options describe much larger coverage. A WLAN is meant for local networks that cover a room or building, usually tens to hundreds of meters. A WMAN spans a metropolitan area, and a WAN covers even larger distances. So the description of very short-range, near-person connectivity points to a Wireless Personal Area Network.