Which of the following are common causes of wireless network interference?

Wireless network interference can significantly impact the performance and reliability of a wireless network. The correct answer highlights that both electronic devices and competing signals contribute to this disruption.

Electronic devices, such as microwaves, cordless phones, and Bluetooth devices, can operate within the same frequency ranges as Wi-Fi, causing interference. Competing signals from neighboring Wi-Fi networks can also create overlap, particularly in densely populated areas, leading to congestion and reduced network performance.

This understanding is crucial for network design and troubleshooting. By recognizing that both electronic devices and competing signals are common causes of interference, network administrators can implement strategies to mitigate these issues, such as adjusting channel selections, increasing power for access points in high-usage areas, or encouraging the use of less congested frequency bands, such as 5 GHz instead of 2.4 GHz.

In contrast, physical obstructions and environmental factors alone do not encompass the full scope of interference causes; they can affect signal strength but are not the sole components. Hardwired connectivity does not influence wireless interference, as it pertains to wired communication rather than wireless. Thus, focusing on electronic devices and competing signals provides a comprehensive understanding of wireless network interference.