Network Defense Essentials (NDE) Practice Exam 2026 - Free Network Defense Practice Questions and Study Guide

In an IoT system, a gateway plays a crucial role in managing secure communication between different networks. The gateway acts as an intermediary that connects IoT devices to the internet and to other networks, facilitating data transfer while maintaining security protocols.

By implementing a gateway, Jack ensures that data transmitted between the IoT devices and external networks is encrypted and properly authenticated. This helps protect the integrity and confidentiality of the data against various cyber threats. Gateways often come equipped with security features such as intrusion detection systems, packet filtering, and user authentication, making them essential for securing IoT communications.

While routers, firewalls, and servers each have their specific functions in network architecture, they do not serve the same multi-functional purpose that a gateway offers in the context of IoT. A router primarily directs traffic, a firewall provides a defense mechanism against unauthorized access, and a server typically hosts applications and data. In contrast, the gateway is specifically designed to handle the unique requirements of IoT communications, making it the ideal choice for secure data transmission in this context.