Network Defense Essentials (NDE) Practice Exam 2025 - Free Network Defense Practice Questions and Study Guide

The cloud layer is integral to many Internet of Things (IoT) applications, particularly in scenarios like recharging devices or managing their functionalities. In this instance, the cloud layer enables John to recharge his smart TV by facilitating remote access and control through internet connectivity.

Using cloud services, the smart TV can communicate with user accounts that manage subscriptions, billing, and payment processing for digital services or electric recharges. This layer allows for data storage, processing, and management beyond the local device, enabling functionalities that require more extensive computational resources or ongoing connectivity.

In contrast, other layers, such as the device layer, focus on the physical components and immediate software of the device itself, while the communication and network layers handle how data is transmitted and routed between devices. Although these layers are essential for overall functionality and connectivity, the cloud layer specifically supports the remote management capabilities that allow the user to recharge their device seamlessly.