Network Defense Essentials (NDE) Practice Exam

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Which of the following is NOT considered a best practice for securing an IoT environment?

Disable the UPnP port on routers
Allow only trusted IP addresses
Enable the UPnP port on routers
Implement end-to-end encryption

The correct answer is: Enable the UPnP port on routers

Enabling the UPnP (Universal Plug and Play) port on routers is recognized as a poor practice in securing an IoT environment. UPnP facilitates device discovery and communication on a local network but does so with minimal security measures in place, making devices vulnerable to attacks. By allowing UPnP, you open up potential security loopholes that can be exploited by attackers to gain unauthorized access to connected devices or the network itself. On the other hand, best practices such as disabling UPnP, allowing only trusted IP addresses, and implementing end-to-end encryption are essential for maintaining a secure IoT environment. Disabling UPnP helps to eliminate the associated security risks. Allowing only trusted IP addresses ensures that only recognized devices can communicate within the network, enhancing overall security by restricting access. Implementing end-to-end encryption protects data as it travels between devices, preventing interception and ensuring confidentiality. Each of these measures contributes effectively to mitigating risks inherent to IoT ecosystems.