What is an inherent risk in using outdated wireless infrastructure?

Using outdated wireless infrastructure presents both lower encryption standards and incompatibility with modern devices, making the choice of both correct.

Outdated wireless infrastructure often relies on older protocols and technologies that may have less robust encryption methods. For instance, early Wi-Fi standards like WEP (Wired Equivalent Privacy) are known for their security vulnerabilities, making them inadequate for protecting sensitive data. In contrast, current standards such as WPA3 provide significantly improved encryption and security features. Therefore, reliance on outdated technologies can expose networks to unauthorized access and data breaches.

Additionally, as technology evolves, newer devices and applications are designed with the latest features in mind, which may not be supported by older infrastructure. Devices utilizing the latest advancements might face connectivity issues, performance limitations, or outright failure to connect to older access points or networks that do not support the latest standards.

Reduced signal quality often relates to various factors and is not a direct result of only outdated infrastructure. Issues like interference, physical obstructions, or poor placement can also affect signal quality across both old and new systems.

Hence, option C captures the dual risks of security vulnerabilities and compatibility issues inherent in outdated wireless infrastructure.