What type of device receives data from and sends commands to IoT devices?

The correct answer is a centralized IoT platform. This type of device serves as an intermediary in the IoT ecosystem, facilitating communication between various IoT devices. It receives data generated by these devices, such as sensor readings or status updates, and processes or analyzes this information. Additionally, it can send commands or configurations back to IoT devices to control them or adjust their operations.

Centralized IoT platforms often include features like data management, analytics, and device management, which centralize the functions necessary for effective IoT deployments. They are crucial for coordinating the interactions of multiple devices, especially in complex IoT networks, ensuring that devices can work together seamlessly.

The other options, while related to IoT infrastructure, serve different purposes. For instance, mobile edge devices might be involved in localized data processing but do not primarily function as command centers for other IoT devices. Customer edge devices focus on the consumer end of the network rather than managing multiple IoT devices. Network gateways play a role in connecting IoT devices to the internet or to other networks, but they do not perform the comprehensive management and command functions characteristic of a centralized IoT platform.