Which technology is the best example of a WPAN?

Which technology is the best example of a WPAN?

• A. Bluetooth
• B. WLAN
• C. Infrared
• D. Ethernet

Answer: (A)

Wireless Personal Area Networks are built for very short-range, low-power connections between personal devices. Bluetooth is designed precisely for that use case—connects phones, headsets, keyboards, and other peripherals within a few meters, with low power consumption and simple pairing. It supports ad hoc connections in small groups called piconets, which is typical of personal-area networking around a person. Infrared also offers short-range communication but requires line-of-sight and is limited in flexibility and compatibility with multiple devices, making it less suitable as a general WPAN technology. WLAN covers much larger areas like rooms or buildings and uses higher power, so it’s categorized as a Local Area Network rather than a personal area network. Ethernet is wired, not wireless. For these reasons, Bluetooth best exemplifies a WPAN.

Wireless Personal Area Networks are built for very short-range, low-power connections between personal devices. Bluetooth is designed precisely for that use case—connects phones, headsets, keyboards, and other peripherals within a few meters, with low power consumption and simple pairing. It supports ad hoc connections in small groups called piconets, which is typical of personal-area networking around a person. Infrared also offers short-range communication but requires line-of-sight and is limited in flexibility and compatibility with multiple devices, making it less suitable as a general WPAN technology. WLAN covers much larger areas like rooms or buildings and uses higher power, so it’s categorized as a Local Area Network rather than a personal area network. Ethernet is wired, not wireless. For these reasons, Bluetooth best exemplifies a WPAN.