The document discusses the edge layer in IoT, focusing on analytics and pre-processing services. It lists options that define the essence of edge computing, such as data pre-processing on devices and secure communication channels. Key points include filtering and aggregation of data before sending it to cloud applications.

1. The Edge layer in IoT relates to the analytics and pre-processing services. Which of the
following helps clarify the essence of edge computing?
Select one:
a.
Components that include physical sensors and actuators that are connected to IoT devices and the
IoT devices themselves
b.
Basic pre-processing tasks like filtering and aggregation of data are performed on the device
c.
After the data has been prepared, it is sent upstream for further processing, storage, and use
within cloud applications
d.
The Edge layer provides secure communication channels and message integrity (by using
encryption)