Internet of Things (IoT) Practice Exam

What distinguishes ZigBee from other communication protocols?

1. High power consumption

2. Support for long-range communication

3. Designed for small-scale projects with low bandwidth needs

4. Compatibility with multiple wireless standards

The correct answer is: Designed for small-scale projects with low bandwidth needs

ZigBee is distinguished primarily by its design for small-scale projects with low bandwidth needs. This protocol is specifically crafted to facilitate communication in scenarios where low power consumption and efficient network management are paramount, such as in home automation, health care monitoring, and sensor networks. ZigBee operates effectively in these environments by using the IEEE 802.15.4 standard, which allows devices to communicate in short ranges while maintaining a low data throughput. The focus on small-scale deployments makes ZigBee particularly suitable for applications that do not require the high data rates or extensive range that other protocols might provide. Such characteristics ensure that devices can operate for extended periods on small batteries, making ZigBee devices more practical for many Internet of Things (IoT) applications where power efficiency is crucial. In comparing ZigBee to other communication protocols, options indicating high power consumption or support for long-range communication are less relevant, as ZigBee deliberately prioritizes low power and short-range capabilities. Additionally, while ZigBee can work within a broader ecosystem of network standards, its primary identity is around enabling small-scale, low-bandwidth applications effectively.