Question: What is the primary purpose of Cellular Internet-of-Things (CIoT) functionality in the 5G System?
Option 1: To provide high-speed data services for mobile broadband users.
Option 2: To support low-bandwidth, low-power communication for a large number of devices and applications.
Option 3: To enable voice over IP (VoIP) services for IoT devices.
Option 4: To facilitate video streaming for IoT applications.
Explanation: CIoT functionality is designed to support the unique requirements of IoT applications, which typically involve low-bandwidth, low-power communication. This is in contrast to traditional mobile broadband services, which prioritize high-speed data transfer. The correct answer reflects the primary purpose of CIoT functionality as described in the 3GPP specification.