Which of the following is a challenge to maintaining security in wireless networks?

Maintaining security in wireless networks is particularly challenging due to the nature of how data is transmitted. Wireless communication often exposes data to various threats, especially during transmission. Unlike wired networks, where physical access can be controlled, wireless networks allow signals to propagate over the air, making it easier for unauthorized entities to intercept data.

The security of data in transit refers to the concern that sensitive information may be accessed by intruders as it travels between devices. This includes risks such as eavesdropping, man-in-the-middle attacks, and packet sniffing. In order to mitigate these risks, wireless networks employ encryption protocols and other security measures. However, the effectiveness of these measures can depend on their implementation and the vigilance of the network’s administrators.

The other options presented do not directly address the core challenge of maintaining security in wireless networks. Interference from physical barriers primarily affects signal strength and quality rather than security. Strong encryption protocols are a tool to enhance security rather than a challenge to it, and using wired connections, while inherently more secure due to restricted physical access, does not apply to the context of wireless network security challenges.