Internet of Things (IoT) Practice Exam

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In the context of IoT, what is 'latency'?

A. The cost of data storage
B. The delay in data transmission
C. The amount of data transmitted
D. The speed of data processing

The correct answer is: B. The delay in data transmission

Latency in the context of IoT refers to the delay in data transmission. This is a crucial factor in IoT systems because it directly affects the responsiveness of connected devices and the overall performance of the network. High latency can lead to delayed actions in response to sensor data, impacting applications such as real-time monitoring, automated systems, and smart home technologies. For instance, if a smart thermostat receives temperature data with high latency, it may take longer to adjust the heating or cooling, leading to discomfort. Similarly, in industrial IoT applications, delays can hinder timely decision-making and lead to inefficiencies or system failures. Understanding latency is vital for IoT practitioners to ensure that systems are designed to minimize delays and maintain responsiveness, especially in applications where real-time data processing is critical.