Internet of Things (IoT) Practice Exam

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Which wireless technology is not typically used in home area networks?

RFID
NFC
Wi-Fi
LoRa

The correct answer is: LoRa

LoRa (Long Range) is a wireless technology primarily designed for long-range, low-power transmissions. It is commonly used in applications that require connecting devices spread over large distances, such as in smart agriculture, industrial IoT applications, and city-wide sensor networks. Unlike the other options, LoRa is not typically employed in home area networks (HAN) where devices need to communicate over shorter distances and usually require higher data rates. In home area networks, Wi-Fi is widely used for high-speed internet access and device communication. NFC (Near Field Communication) is commonly used for very short-range data exchange, such as mobile payments and pairing devices. RFID (Radio Frequency Identification) is often used for tracking and inventory management. While all these technologies have their place in various applications, LoRa's characteristics make it less suitable for the typical needs of a home area network compared to the others.