Internet of Things (IoT) Practice Exam

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Which of the following is true regarding ZigBee technology?

It is designed for large-scale projects requiring high bandwidth
It is an IEEE standard specifically for Bluetooth connections
It uses high-power digital radios for communication
It is a specification for low-power digital radios in personal area networks

The correct answer is: It is a specification for low-power digital radios in personal area networks

ZigBee technology is specifically designed to facilitate communication in personal area networks (PANs) with a focus on low power consumption. This attribute makes it ideal for applications that require long battery life, such as smart home devices, environmental sensors, and other Internet of Things (IoT) devices. ZigBee operates on the IEEE 802.15.4 standard, which is tailored for low-rate wireless personal area networks. The technology emphasizes low complexity, low power requirements, and sufficient range while maintaining a reasonable data transfer rate. When considering the other options, it is crucial to note that ZigBee is not meant for large-scale projects that require high bandwidth, nor is it linked to Bluetooth connections, which is a different wireless communication protocol. Additionally, ZigBee does not utilize high-power digital radios, as its low-power characteristic is one of its most defining features. Thus, the focus on low-power digital radios further validates the correctness of the statement regarding ZigBee technology's specification for personal area networks.