What are two common sources of interference for Wi-Fi networks? (Choose two.)
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The two common sources of interference for Wi-Fi networks are radar and rogue APs.
Radar systems operate on frequencies that overlap with the 5 GHz Wi-Fi bands, which can cause interference and disrupt Wi-Fi signals. Radar systems are used in a variety of applications, such as weather monitoring, air traffic control, and military operations. To mitigate the impact of radar interference, Wi-Fi networks can use dynamic frequency selection (DFS) technology, which detects radar signals and automatically switches to a different channel that is less likely to experience interference.
Rogue access points (APs) are unauthorized wireless access points that are installed on a network without proper security controls. These rogue APs can cause interference and disrupt the Wi-Fi network by using the same channel as the authorized APs, causing collisions and reducing overall network performance. Rogue APs can also pose a security risk by allowing unauthorized access to the network. To prevent rogue APs, network administrators can implement security policies and use tools such as wireless intrusion prevention systems (WIPS) to detect and block unauthorized access points.
LED lights, fire alarms, and conventional ovens are not common sources of interference for Wi-Fi networks. However, they can cause interference in certain situations. For example, LED lights that operate on frequencies that overlap with Wi-Fi signals can cause interference. Similarly, fire alarms that use wireless communication protocols can cause interference with Wi-Fi networks. Conventional ovens do not typically cause interference, but they can absorb and reflect Wi-Fi signals, which can affect network coverage in certain areas.